Prof. Dr. Wolfgang Gaul (ehem. Institutsleiter)

Biographical Sketch / Kurzbibliographie

Wolfgang Gaul is Professor em. of Business Administration and Management Science and was Head of the Institute of Decision Theory and Management Science at the Faculty of Economics, University of Karlsruhe (TH), now KIT (Karlsruhe Institute of Technology),  Karlsruhe, Germany.

He got his "Dissertation Dr.rer.nat." from the Institute of Applied Math­e­matics, Department of Probability Theory and Statistics, University of Bonn, in 1974.

In 1980 he received his "Habilitation" in Mathematics from the University of Bonn.

His publications and ongoing research interests include work in different areas:

– From a more theoretical point of view –

graph theory and network models, reliability theory, optimization, stochastic optimization, op­er­a­tions research, probability theory, statistics, sampling theory and data analysis.

– From a more application-oriented point of view­ –

applications of computer science, operations research and management science, e.g., in financial planning, in marketing about market research and con­sumer behaviour, product management, international marketing and man­agement, innovation and entre­pre­neur­ship, pre-test and test market model­ing, marketing management with emphasis on data analysis and operations research techniques, computer-assisted marketing and decision support, knowledge-based approaches for market research and marketing, e-business, recommender systems, and web intelligence,

as well as in other areas of business administration and economics.

He has published in, e.g.,

Absatzwirtschaft

Advances in Data Analysis and Classification (ADAC)

Annals of Discrete Mathematics

Annals of Operations Research

Applied Stochastic Models and Data Analysis

Behaviormetrika

Bulletin of the International Statistical Institute

Communication and Cognition

Computer Applications Karlsruhe

Decision Support Systems

Der Markt

Die Steuerliche Betriebsprüfung

Information Management

International Journal of Research in Marketing

International Series of Numerical Mathematics

Jahrbuch für Absatz- und Verbrauchsforschung

Journal of Business Research

Journal of Classification

Journal of Combinatorics, Information, and System Sciences

Journal of Econometrics

Journal of Information and Optimization Sciences

Journal of Marketing Research

Karlsruher Transfer

Lecture Notes in Economics and Mathematical Systems

Management International Review

Management und Computer

Marketing ZFP

Mathematica Balkanica

Mathematische Operationsforschung und Statistik, Ser. Optimization

Methods of Operations Research

Networks

Office Management

Operations Research Proceedings

Operations Research Verfahren

Proceedings in Operations Research

Studien zur Klassifikation

Studies in Classification, Data Analysis, and Knowledge Organization

Vierteljahreshefte für Mediaplanung

Wirtschaftswissenschaftliches Studium

ZAMM

Zeitschrift für die Automobilwirtschaft

Zeitschrift für Betriebswirtschaft

Zeitschrift für betriebswirtschaftliche Forschung

Zeitschrift für Evaluation

Zeitschrift für Operations Research

Zeitschrift für Unternehmensentwicklung und Industrial Engineering

 

Selected Recent Activities / Ausgewählte Neuere Aktivitäten

In 2001, his wife Helga and he founded the "Helga und Wolfgang Gaul Stiftung" with the purpose of supporting excellent scientific research as well as helping handicapped persons who cannot take part in scientific life. 

"Ehrenmitgliedschaft" in GfKl (Gesellschaft für Klassifikation) was bestowed to him in 2007.

Since 2014 his wife and he are "Ehrenbürger" of KIT.

 

Member of Editorial Boards / Mitglied von Herausgebergremien

"Advances in Data Analysis and Classification", Springer, Member of Board of Managing Editors.

"Informationstechnologie und Ökonomie" (Information Technology and Economics), Peter Lang Verlag, Member of Board of Managing Editors.

"Journal of Classification", Springer, Member of Editorial Board.

"Studies in Classification, Data Analysis, and Knowledge Organization", Springer, Member of Board of Managing  Editors.

 

Publications

Proceedings

"German-Japanese Interchange of Data Analysis Results", Proceedings of Two German-Japanese Symposia, Karlsruhe and Kyoto, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, 2014 (Edited together with A. Geyer-Schulz, Y. Baba, A. Okada).

"Challenges at the Interface of Data Analysis, Computer Science, and Optimization", GfKl 34, Karlsruhe, 2010, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, Berlin-Heidelberg, 2012 (Edited together with A. Geyer-Schulz, L. Schmidt-Thieme, J. Kunze).

"The Entrepreneurship - Innovation - Marketing Interface", 3rd Symposium, Cottbus, 2009, Swiridoff, 2010 (Edited with D. Baier, A. Rese, R. Würth).

"Cooperation in Classification and Data Analysis" Proceedings of Two German-Japanese Workshops, Tokyo and Berlin, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, Berlin-Heidelberg, 2009 (Edited together with A. Okada, T. Imaizumi, H.H. Bock).

"The Entrepreneurship - Innovation - Marketing Interface", 2nd Symposium, Karlsruhe 2005, Swiridoff, 2007 (Edited together with R. Würth).

"From Data and Information Analysis to Knowledge Engineering", GfKl 29, Magdeburg, 2005, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, Berlin-Heidelberg, 2006 (Edited together with M. Spiliopoulou, R. Kruse, Ch. Borgelt, A. Nürnberger).

"The Entrepreneurship - Innovation - Marketing Interface", Proceedings of the 1st Symposium, Karlsruhe, 2003, Swiridoff, 2005 (Edited together with R. Würth, V. Jung).

"Classification - the Ubiquitous Challenge", GfKl 28, Dortmund, 2004, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, Berlin-Heidelberg, 2005 (Edited together with C. Weihs).

"Classification, Clustering, and Data Mining Applications", IFCS-Conference, Chicago, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, 2004 (Edited together with D. Banks, L. House, F.R. Morris, P. Arabie).

"Between Data Science and Applied Data Analysis", Studies in Classification, Data Analysis, and Knowledge Organization, Springer, 2003 (Edited together with M. Schader, M. Vichi).

 

 

Articles

"Evaluation of the Evolution of Relationships between Topics over Time", submitted, 2015, (with D. Vincent).

"Airline Fleet Assignment with Consideration of Aspects from Network Revenue Management", Discussion Paper, 2014 (with Chr. Winkler).

"Class-Dependent Strategies in Airline Network Revenue Management Incorporating Flexible Products and Overbooking", Discussion Paper, 2013 (with Ch. Winkler).

"Community Structure Discovery in Directed Graphs by Asymmetric Clustering", Behaviormetrika, 40, No. 1, 2013, 85-99 (with R. Klages, A. Okada).

"A Hierarchical Clustering Approach to Modularity Maximization", In: Studies in Classification, Data Analysis, and Knowledge Organization, Springer, 2013, 79-86 (with R. Klages).

"An Approach for Topic Trend Detection", In: Studies in Classification, Data Analysis, and Knowledge Organization, Springer, 2013, 347-354 (with D. Vincent).

"Optimal Nework Revenue Management Decisions Including Flexible Demand Data and Overbooking", In: Studies in Classification, Data Analysis, and Knowledge Organization, Springer, 2013, 449-456 (with Chr. Winkler).

"A Note on Consistency Improvements of AHP Paired Comparison Data", Adv Data Anal Classif, 6, 2012, 289-302 (with D. Gastes).

"The Consistency Adjustment Problem of AHP Pairwise Comparison Matrices", In: Diamantopoulos, A. et al. (Eds.), Quantitative Marketing and Marketing Management, Springer Gabler, 2012, 51-62 (with D. Gastes).

"Web Page Importance Ranking", Adv Data Anal Classif, 5, 2011, 113-128.

"Simulations- und Optimierungsrechnungen auf Basis der Conjointanalyse", In: Conjoint Analyse: Methoden - Anwendungen - Praxisbeispiele, Springer, 2009, 163-182 (with D. Baier).

"Data Analysis and Operations Research", In: Selected Contributions in Data Analysis and Classification, Studies in Classification, Data Analysis and Knowledge Organization, Springer, Berlin-Heidelberg, 2007, 357-366.

"Market Research and the Rise of the Web: The Challenge", In: Wind, Y. et al. (Eds.), Marketing Research and Modeling: Progress and Prospects, Springer Science + Business Media, New York, 2004, 103-113.

"Visualizing Recommender Systems via Multidimensional Scaling", Selected Papers of the International Conference on Operations Research, OR 2003, Heidelberg, 189-196 (with P. Thoma, L. Schmidt-Thieme, S. van den Bergh).

"Market Simulation Using a Probabilistic Ideal Vector Model for Conjoint Data", In: Conjoint Measurement: Methods and Applications, Springer, 2003, 123-146 (with D. Baier).

 

Talks / Vorträge

"Market Research and the Rise of the Web: The Challenge", (Invited Talk), Wharton, USA, 2002.

"Mathematical Models in Marketing", (Invited Talk), University of Tartu, 2002.

"The Web Mining Challenge to eBusiness", (Invited Talk), University of Tartu, 2002.

"The Recommender System's Challenge to Market Research at the Intersection of eMarketing and Web Mining", CLADAC, Bologna, 2003.

"Web Robot Detection - Preprocessing Web Logfileds for Robot Detection", CLADAC, Bologna, 2003 (with. Ch. Bomhardt, L. Schmidt-Thieme).

"The Recommender System's Challenge to Market Research at the Intersection of eMarketing and Web Mining", (Invited Talk), Dentsu, Tokyo, 2003.

"Web Mining and User Navigational Behavior in the Internet" (Invited Talk), University of Kyoto, 2003.

"Web Mining and its Interrelations to Classification, Data Mining, and (e)Market Research", IFCS-Conference, Chicago, 2004. 

"How Recommender Systems Support Website Operators and Visitors", (Invited Talk), Ritsumeikan University, Kyoto, 2003. 

"OR Based Modeling and Measuring of Market Related Situations", (Semi Plenary Talk), GOR Symposium, Tilburg, 2004. 

"Web Mining I" and "Web Mining II", (Tutorial), University of Pavia, 2004.

"Web Minig at the Intersection of Data Mining, Market Research, and Marketing", (Invited Talk), University of Pavia, 2004.

"Von der automatischen Klassifikation zum "Mining" von Web-Informationen", (Eingeladener Vortrag), Universität Aachen, 2005.

"DATARtext - a Combination of Decision Trees and Association Rules for Text Classification", CLADAG, Parma, 2005. 

"Feedback Options for a Personal News Recommendation Tool", German-Japanese Workshop, Berlin, 2006 (with Ch. Bomhardt). 

"Marketing and Clustering", (Tutorial), Summer School on Clustering, Portugal, 2006 (together with P. Bryant). 

"Marketing Based on Data Analysis and Operations Research", French-German Conference, Cergy-Pontoise, 2007.

"Data Analysis and Operations Research", (Eingeladener Vortrag), Tokyo, 2007.

"Data Analysis and Operations Research", (Eingeladener Vortrag), University of Sapporo, 2007.

"Marketing and the Web", (Eingeladener Vortrag), Vision 2K, Karlsruhe, 2007.

"Marketing and Web Mining", (Talk within Invited Session), Shanghai, 2008.

"Web Page Importance Ranking", (Invited Talk), Tokyo, 2009.

"Data Analysis for Web Intelligence Enhancement", (Invited Talk), Tokyo, 2009.

"Web Page Importance Ranking", (Talk within Invited Session), CLADAC- GfKl Symposium, Florence, Italy, 2010. 

"Data Analysis for Web Intelligence Enhancement", (Invited Talk), University of Mannheim, 2010.

"Data Analysis for Web Intelligence Enhancement", (Plenary Talk), Portuguese Classification Society, Lissabon, 2010. 

"Web Information Search via m-Clicks-Ahead Recommendations", (Invited Talk), Polish-German Workshop, Krakau, 2011.

"AHP Consistency Reconsidered", 4th Japanese-German Symposium, Kyoto, Japan, 2012.

"Community Structure Detection as Cluster Analysis Application to Graphs", (Invited Talk), University of Osaka, 2012. 

"The Consistency Adjustment Problem Concerning AHP Data", (Invited Talk), Wien, 2012.

"Where Data Analysis Meets Graph Theory", (Opening Plenary Talk), GfKl 36, Hildesheim, 2012.

 

 

Consulting / Beratungstätigkeiten

Main fields of application: market research, international marketing, sales force man­agement, segmentation & positioning, consumer behavior, applications in business administration and operations research, web intelligence.

 

 

Additional Scientific Activities / Weitere wissenschaftliche Aktivitäten

Member of programme committees, organizer of special sections of conferences, local organizer of meetings, invited speaker at international conferences, referee of papers in journals on operations research, applied mathematics, data analysis, statistics, computer science, and marketing as well as refereed proceedings volumes.

 

Editorial Tasks up to about 2000 / Herausgebertätigkeiten bis etwa 2000

 

Series / Serien

„Entscheidungsunterstützung für ökonomische Probleme" (Decision Support for Eco­nomic Problems), 18 Volumes until 2000, Peter Lang Verlag, Frankfurt - Bern - New York - Paris (Editors: W. Gaul, H.G. Gemünden).

„Informationstechnologie und Ökonomie“ (Information Technology and Economics), 4 Volumes since 2000, with another more than 30 volumes up to 2012, Peter Lang Verlag, Frankfurt – Berlin – Bern – Brüssel – New York – Oxford – Wien (Editors: W. Gaul, A. Heinzl, M. Schader).

 

Proceedings, Special Volumes, and Issues of Scientific Journals

"Classification as a Tool of Research", Proceedings of the 9th Annual Meeting of the Classification Society (F.R.G.), University of Karlsruhe, F.R.G., June, 26-28, 1985, North Holland, Amsterdam - New York - Oxford - Tokyo, 1986 (Edited together with M. Schader).

"Data, Expert Knowledge and Decisions: An Interdisciplinary Approach with Emphasis on Marketing Applications", Proceedings of an International Work­shop on 'Data Analysis, Decision Support, and Expert Knowledge Representa­tion in Marke­ting and Related Areas of Research', University of Karlsruhe, F.R.G. June, 21-23, 1987, Springer, Berlin - Heidelberg - New York - London - Tokyo, 1988 (Edited to­gether with M. Schader).

"Knowledge, Data and Computer-Assisted Decisions", Proceedings of an Inter­national NATO Advanced Research Workshop, Universität der Bundeswehr Hamburg, September, 3-5, 1989, Springer, Berlin - Heidelberg - New York - London - Tokyo, 1990 (Edited together with M. Schader).

"Operations Research Proceedings 1991", Proceedings of the 20th Annual Meeting of DGOR (Deutsche Gesellschaft für Operations Research), University of Hohen­heim, September, 4-6, 1991, Springer, Berlin - Heidelberg - New York - London - Tokyo, 1992 (Edited together with A. Bachem, W. Habenicht, W. Runge, W. Stahl).

Special Issue of OR-Spektrum on "Produktionsplanung und -steuerung", OR-Spektrum 14, 4, 1992 (Edited together with G. Wäscher).

"Wissensbasierte Marketing-Datenanalyse - Das WIMDAS-Projekt", Lang, Frankfurt, 1994 (Edited together with M. Schader).

"From Data to Knowledge: Theoretical and Practical Aspects of Classification, Data Analysis, and Knowledge Organization", Proceedings of the 18. Annual Meeting of the GfKl, University of Oldenburg, March 9 - 11, 1994, Springer, Berlin-Heidelberg, 1995 (Edited together with D. Pfeifer).

Special Issue of Annals of Operations Research on "Data, Expert Knowledge, and Decisions: Using Knowledge to Transform Data into Information for Deci­sion Support", Annals of Opera­tions Research, 55, 1995 (Edited together with F.J. Radermacher, M. Schader, D. Solte).

“Operations Research Proceedings 1996”, Symposium on Operations Research (SOR 96), Braunschweig, September 3 – 6, 1996, Springer, Berlin – Heidelberg – New York, 1997 (Edited together with U. Zimmermann, U. Derigs, R.H. Möhring, K.-P. Schuster).

"Classification in the Information Age", Special Volume of Studies in Classi­fi­cation, Data Analysis, and Knowledge Organization, (Proceedings of the 22nd Annual Conference of Gesellschaft für Klassifikation (GfKl), University of Dresden, March 4 – 6, 1998), Springer, Berlin – Heidelberg – New York, 1999 (Edited together with H. Locarek-Junge).

"Mathematische Methoden der Wirtschaftswissenschaften", Physica, Frankfurt, 1999 (Edited together with M. Schader).

"Classification and Information Processing at the Turn of the Millennium", Pro­ceed­ings of the 23rd Annual Conference of the GfKl, University of Bielefeld, March 10 - 12, 1999, Springer, Berlin – Heidelberg – NewYork, 2000 (Edited together with R. Decker).

"Data Analysis: Scientific Modeling and Practical Application", Studies in Classification, Data Analyis, and Knowledge Organization, Springer, September 2000 (Edited together with O. Opitz, M. Schader).

“Classification, Automation, and New Media”, Proceedings of the 24th Annual Conference of the GfKl, University of Passau, March 15 – 17, 2000, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, Berlin – Heidel­berg – New York, 2002 (Edited together with G. Ritter).

“Between Data Science and Everyday Web Practice”, Proceedings of the 26th Annual Conference of the GfKl, University of Mannheim, July 22 – 24, 2002, Studies in Classification, Data Analysis and Knowledge Organization, Springer, Berlin – Heidelberg – New York, 2003 (Edited together with M. Schader).

 

Member of Editorial Boards of Journals /
Mitglied von Herausgebergremien

Computer Applications University of Karlsruhe (CAK), 1986 - 1990.

Applied Stochastic Models and Data Analysis, Wiley, since 1987.

Zeitschrift für Operations Research (ZOR), Methods and Models of Operations Research, Physica, 1988 - 1993.

Studies in Classification, Data Analysis, and Knowledge Organization, Springer, since 1990.

Studies in Classification, Data Analysis, and Knowledge Organization, Springer, Member of Board of Managing Editors, since 1998.

 

Published Work up to about 2000 / Publikationen bis etwa 2000

 

Published Work / Pulikationen

 

Books / Bücher

"Marktforschung und Marketing-Management - Computerbasierte Ent­schei­­dungs­­un­ter­stützung", (Market Research & Marketing-Management), 2. Edi­tion, Oldenbourg, München, 1994 (with D. Baier).

"Marktforschung und Marketing-Management - Computerbasierte Entschei­dungs­un­ter­stützung", (Market Research & Marketing-Management), Oldenbourg, München, 1993 (with D. Baier).

"Computergestütztes Marketing" (Computer-Assisted Marketing), Springer, Berlin - Heidelberg - New York - Tokyo, 1990 (with M. Both).

 

Articles / Artikel

“Computergestützte Lehrveranstaltungsevaluation”, Zeitschrift für Evaluation Heft 1, 2004, 35-50 (with Ch. Bomhardt, N. Schmidt-Mänz).

“Mobile Gaming – Markt mit Zukunft?“, Tele Kommunikation Aktuell, 57. Jahrgang, Heft 09/10, 2003, 28 – 52 (with S. Weil).

“Situative Analyse des Markteintrittsverhaltens neugegründeter Unternehmen“, In: The Entrepreneurship - Innovation - Marketing Interface, Proceedings of the 1st Symposium, Karlsruhe, 2003, Swiridoff, 2005, 445-464 (with V. Jung).

“Marketing Implementation by New Ventures: Considering Contextual Factors and Firm Performance”; UIC Research Symposium on Marketing and Entrepreneurship, 13.-15.8.2003, Chicago; In: Hills, G. et al. (Eds.): Research at the Marketing/Entrepreneurship Interface, The University of Illinois at Chicago, 2003, 215-223 (with V. Jung).

“Market Entry Behavior of New Ventures: A Contextual Approach“. In: Proceedings of the 48th ICSB World Conference on Advancing Entrepreneurship and Small Business, 15.-18.6.2003, Belfast (with V. Jung).

„Das Internet aus Handwerkssicht: Online Kontakte werden immer wichtiger!“, Handwerk 21, 19. Jahrgang, 1, 2003, 24 – 26 (with N. Schmidt-Mänz).

“Recommender Systems Based on User Navigational Behavior in the Internet”, Behaviormetrika, 29, No. 1, 2002, 1 - 22 (with L. Schmidt-Thieme).

„ Bericht zur Studie „Marketing als Erfolgsfaktor neugegründeter Unternehmen“, Diskussionspapier Nr. 244, Institut für Entscheidungstheorie und Unternehmensforschung, 2002 (with V. Jung).

„ Market Orientation in New Ventures: Measurement and Relation to Entrepreneurial Orientation. In: Research in Entrepreneurship and Small Business (RENT) XVI, Conference Proceedings, Vol. 2, pp. 213-229, 20.-22.11.2002, Barcelona (with V. Jung).

„Handwerker brauchen Internet-Business“, Handwerk 21, 18. Jahrgang, 3, 2002, 12 – 15 (with N. Schmidt-Mänz).

“Mining Web Navigation Path Fragments”, in Nishisato, S., Baba, Y., Bozdogan, H., Kanefuji, K. (Eds.), Measurement and Multivariate Analysis, Springer, 2002, 249 – 260 (with L. Schmidt-Thieme).

“eMarketing mittels Recommendersystemen”, Marketing ZFP, 24. Jg. 2002, 47 – 55 (with A. Geyer-Schulz, M. Hahsler, L. Schmidt-Thieme).

“Aufzeichnung des Nutzerverhaltens – Erhebungstechniken und Datenformate”, Handbuch “Web-Mining im Marketing“, 2002, 34 – 52 (with L. Schmidt-Thieme).

“Web-Controlling und Recommendersysteme”, Handbuch “Web-Mining im Marketing”, 2002 (with L. Schmidt-Thieme).

“Mining Generalized Association Rules for Sequential and Path Data”, in Proceedings of the 2001 IEEE International Conference on Data Mining, San Jose, CA, USA, 593–596 (with L. Schmidt-Thieme).

“Recommender Systems Based on Navigation Path Features”, in Proceedings of the WEBKDD 2001 Workshop on Mining Web Log Data Across All Cus­tomer Touch Points, The Seventh ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, San Franscisco, CA, 2001, 23–34 (with L. Schmidt-Thieme).

“Frequent Substructures in Web Usage Data – a Unified Approach”, in Pro­ceed­ings of Web Mining Workshop, First SIAM International Conference on Data Mining 2001 (ICDM), Chicago (with L. Schmidt-Thieme).

"Decision Tree Construction by Association Rules", in Decker, R., Gaul, W. (Eds.), Classifi­ca­tion and Information Processing at the Turn of the Millen­nium, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, 2000, 245–253 (with F. Säuberlich).

"Frequent Generalized Subsequences – A Problem From Web Mining", in Gaul, W., Opitz, O., Schader, M. (Eds.), Data Analysis: Scientific Modeling and Practical Application, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, 2000, 429–445 (with L. Schmidt-Thieme).

"Mining User Navigation Path Fragments" in Proceedings of Workshop on Web Mining for E-Commerce – Challenges and Opportunities, The Sixth ACM SIGKDD International Con­fer­ence on Knowledge Discovery and Data Mining, Boston, MA, 2000, 105–110 (with L. Schmidt-Thieme).

"Methodeneinsatz zur Unterstützung erfolgreicher Produktinnovationen", Zeit­schrift für Unter­nehmensentwicklung und Industrial Engineering, FB/IE 49, 2000, 75–78 (mit M. Volkmann).

"Market Simulation Using a Probabilistic Ideal Vector Model for Conjoint Data" in: Gustafsson, A., Herrmann, A., Huber, F. (Eds.), Conjoint Measurement – Methods and Applications, Springer, 2000 (2nd edition 2001), 97–120 (with D. Baier).

“Classification and Positioning of Data Mining Tools” in Gaul, W., Locarek-Junge, H. (Eds.), Classification in the Information Age, Studies in Classifi­ca­tion, Data Analysis, and Knowledge Organization, 1999, 145 – 154 (with F. Säuberlich).

“Zielgruppenbindung in der Automobilindustrie”, Zeitschrift für die Automobil­wirtschaft, 2/99, 60 – 65 (with M. Volkmann).

“Data Mining: A New Label for an Old Problem”, in Gaul, W., Schader, M. (Hrsg.), Mathema­tische Methoden der Wirtschaftswissenschaften, Physica, 1999, 3 – 14 (with M. Schader).

"Optimal Product Positioning Based on Paired Comparison Data", Journal of Econometrics, 89, 1999, 365–392 (with D. Baier).

“Zur Charakterisierung von Preisspielräumen”, Zeitschrift für betriebswirt­schaft­liche For­schung, Heft 11, 1999, 1056 – 1074 (with M. Löffler).

“A Classification Approach for Competitive Pricing”, in Gaul, W., Locarek-Junge, H. (Eds.), Classification in the Information Age, Studies in Classification, Data Analysis, and Knowledge Organization, 1999, 511 – 519 (with M. Löffler).

“Segment-Specific Aspects of Designing Online Services in the Internet”, in Balderjahn, I., Mathar, R., Schader, M. (Eds.), Classification, Data Analysis, and Data Highways, Studies in Classification, Data Analysis, and Knowledge Organization, 1998, 253 – 261 (with T. Klein, F. Wartenberg).

“Classification of Pricing Strategies in a Competitive Environment”, in Balderjahn, I., Mathar, R., Schader, M. (Eds.), Classification, Data Analysis, and Data Highways, Studies in Classification, Data Analysis, and Knowledge Organization, 1998, 393 – 400 (with M. Löffler).

“Elektronische Marktplätze und Entscheidungsunterstützung” in Hippner, H., Meyer, M., Wilde, K.D. (Hrsg.), Computer Based Marketing – das Handbuch zur Marketinginformatik, Vieweg, 1998, 35 – 42 (with T. Klein).

“Data Mining: A New Label for an Old Problem?”, Proceedings of Workshop on “Data Mining and Knowledge Discovery in Business Applications”, Osaka, Japan, September 24-25, 1998.

"Two-Mode Overlapping Clustering With Applications to Simultaneous Benefit Segmentation and Market Structuring", in: Klar, R., Opitz, O. (Eds.), Classifi­cation and Knowledge Organi­za­tion, Studies in Classification, Data Analysis, and Knowledge Organization, Springer, 1997, 557–566 (with D. Baier, M. Schader).

„Advances in Cluster Analysis and Applications to Economics“, Bulletin of the International Statistical Institute, 51st Session, Istanbul, Turkey, 1997, Book 2, 381 – 384.

“Computergestützte Regaloptimierung im Einzelhandel”, der Markt, 1997/3+4, 185 – 196 (with R. Decker, F. Wartenberg).

“Multiperiod Price Optimization in Oligopolies Considering Reference Price Effects”, in Operations Research Proceedings, 1996, Springer, 1997, 353 – 358 (with M. Löffler).

„Elektronische Marktplätze als Marketing-Plattform im Internet – Integrierte Online-Präsenz steigert die Akzeptanz“, Office Management, 45, 4, 41-45 (mit T. Klein, F. Wartenberg).

"Verfahren der Testmarktsimulation in Deutschland: Eine vergleichende Ana­lyse", Marketing-ZFP, 1996 (with D. Baier, A. Apergis).

"A New Algorithm for Two-Mode Clustering", in Bock, H.H. Polasek, W. (Eds.): Data Analysis and Information Systems: Statistical and Conceptual Approaches, Springer, 1996 (with M. Schader).

"Analyzing Paired Comparisons Data Using Probabilistic Ideal Point and Probabilistic Vector Models", in Bock, H.H./Polasek, W. (Eds.): Data Analysis and Information Systems: Statistical and Conceptual Approaches, Springer, 1996 (with D. Baier).

"Integrating an OR Model into a Knowledge-Based System for Marketing Data Analysis", in Bock, H.H./Polasek, W. (Eds.): Data Analysis and Information Systems: Statistical and Conceptual Approaches, Springer, 1996 (with F. Wartenberg).

"Gewinnorientierte Produktliniengestaltung unter Berücksichtigung des Kun­den­nutzens", Zeit­schrift für Betriebswirtschaft, 65, Heft 8, 1995 (with E. Aust, D. Baier).

"Positioning Analysis Using Knowledge Based Support", Annals of Opera­tions Research, 55, 1995 (with D. Baier, F. Wartenberg).

"A Unifying Approach for Benefit Segmentation and Product Line Design Based on Rankorder Conjoint Data", in Gaul, W., D. Pfeifer (Eds.): From Data to Knowledge: Theoretical and Practical Aspects of Classification, Data Analysis, and Knowledge Organization, Springer, 1995 (with E. Aust).

"Classification and Representation Using Conjoint Data", in Gaul, W., D. Pfeifer (Eds.): From Data to Knowledge: Theoretical and Practical Aspects of Classification, Data Analysis, and Knowledge Organization, Springer, 1995 (with D. Baier).

"Pyramidal Classification Based on Incomplete Dissimilarity Data", Journal of Classification, 11, 1994, (with M. Schader).

"Computerunterstützung als Management-Hilfe beim Neuprodukt-Einführungs­prozess", Management & Computer, Jahrgang 2, Heft 2, 1994 (with D. Baier).

"Comparing Proposals for the Solution of Data Analysis Problems in a Knowl­edge-Based System", Annals of Operations Research, Vol. 52, 1994 (with D. Baier, F. Wartenberg).

"Berücksichtigung von Kaufvergangenheiten bei der Markenwahl", Der Markt, Jahrgang 33, Heft 2, 1994 (with R. Decker, M. Röhle).

"Analyse von Panel- und POS-Scanner-Daten mit Neuronalen Netzen", Jahr­buch der Absatz- und Verbrauchsforschung, Jahrgang 40, Heft 3, 1994 (with R. Decker, F. Wartenberg).

"Neuronale Netze in der Kaufverhaltensforschung - Alternativ-Modell", Ab­satzwirtschaft, Jahrgang 37, Heft 7, 1994 (with R. Decker, F. Wartenberg).

"Pricing in International Marketing and Western European Economic Integra­tion", Manage­ment International Review, Vol. 34, No. 2, 1994 (with U. Lutz).

"Decision Making Concerning Product Line Design Based on Conjoint Analy­sis", in Bachem, A., U. Derigs, M. Jünger, R. Schrader (Eds.): Operations Research 1993, Physica, 1994 (with E. Aust).

"Ein computergestützter Einstieg ins Computer Aided Marketing", (Computer-Assisted Entry into Computer Aided Marketing), Information Management, Heft 4, 1993 (with D. Baier).

"Wissensbasierte Entscheidungsunterstützung im Verkauf", Wirtschaftwis­senschaft­liches Studium, Jahrgang 22, Heft 1, 1993 (with R. Decker, M. Pesch).

"Computerbasierte Entscheidungsunterstützung im Marketing", (Computer-based Decision Support in Marketing), Karlsruher Transfer, Jahrgang 7, 1993 (with R. Decker, D. Baier).

"Paneuropäische Tendenzen in der Preispolitik - Eine empirische Studie", Der Markt, Jahr­gang 32, Heft 4, 1993 (with U. Lutz).

"Goodwill Towards Domestic Products - An Empirical Study within the Scope of Research on Country-of-Origin Effects", in Bock, H. H., W. Lenski, M. M. Richter (Eds.): Information Systems and Data Analysis, Studies in Classifica­tion, Data Analysis, and Knowledge Organization, Springer, 1993 (with E. Aust, U. Lutz).

"Product Positioning Based On Knowledge-Oriented Support: A Logical Framework", in Diewert, W., K. Spremann, F. Stehling (Eds.): Mathematical Modelling in Economics, Springer, 1993 (with D. Baier).

"A Knowledge-Based System Comparing Sequences of Data Analysis Techniques", in Karmann, A., M. Mosler, M. Schader, G. Uebe (Eds.): Opera­tions Research '92, Springer, 1993 (with D. Baier, F. Wartenberg).

"Interdisziplinarität und Integration als Anforderungen an ELECTRONIC MARKETING" (Inter­disciplinarity and Integration as a Challenge for ELEC­TRONIC MARKETING), in Hermanns, A./Flegel, V. (Eds.): Handbuch des Electronic Marketing, Beck, 1992 (with M. Both).

"Hinweise auf Innovationsvorgänge in Unternehmen der neuen Bundesländer am Beispiel EDV-Einsatz", in Gemünden, H. G., F. Pleschak (Eds.): Inno­vationsmanagement und Wett­bewerbsfähigkeit, Gabler, 1992 (with U. Lutz, G. Theuner).

"The MVL (Missing Values Linkage) Approach for Hierarchical Classification When Data are Incomplete", in Studies in Classification, Data Analysis, and Knowledge Organization, Vol.II, 1992 (with M. Schader).

"Computer-Assisted Marketing Research and Marketing (Where are the Ex­pert Systems?)", in Extending the Boundaries of (Traditional) Pharmaceutical Market Research, 30. Annual EPhMRA Conference, Vienna, 1991.

"Knowledge-Based Systems in Marketing and Market Research: Demonstra­tions and Comparisons of Own Systems", Methods of Operations Research, 4, 1991, (with R. Decker).

"Pyramidal Clustering with Missing Values", in Diday, E./Lechevallier, Y. (Eds.): Symbolic-Numeric Data Analysis and Learning, Nova Science, 1991 (with M. Schader).

"An Approach to Marketing Data Analysis: The Forced Classification Proce­dure of Dual Scaling", Journal of Marketing Research, XXVII, 1990 (with S. Nishisato).

"Einige Bemerkungen über Expertensysteme für Marketing und Marktfor­schung" (Some Remarks about Expert Systems for Marketing and Market Research), Marketing ZFP Heft 4, IV. Quartal 1990 (with R. Decker).

"Computer-Assisted Market Research and Marketing Enriched by Capabilities of Knowledge-Based Systems", in New Ways in Marketing and Market Re­search, EMAC/ESOMAR Symposium, Athens, 1990 (with D. Baier).

"Knowledge-Oriented Support for Data Analysis Applications to Marketing", in Schader, M./Gaul, W. (Eds.): Knowledge, Data and Computer-Assisted Deci­sions, Springer, 1990 (with M. Both/M. Schader).

"Entscheidungsunterstützung bei der Auswertung von Primärforschungsdaten - Ein Konzept zur Verbindung von Wissensbasis, Datenbank und Methoden" (Decision Support Concerning the Analysis of Market Research Data - A Concept with Respect to the Interface of Knowl­edge Base, Data Base, and Methods), Operations Research Proceedings 1989, Springer, 1990 (with D. Baier).

"A Knowledge-Based System for Supporting Data Analysis Problems", Deci­sion Support Systems, 5, 1989 (with I. Böckenholt, M. Both).

"Wissensbasierte Entscheidungsunterstützung in Marktforschung und Marke­ting" (Knowl­edge-Based Decision Support in Market Research and Marke­ting), Proceedings-Band des 24. Kongresses der Deutschen Marktforschung, 1989.

"Classification and Selection of Consumer Purchase Behaviour Models", in Opitz, O. (Ed.): Conceptual and Numerical Analysis of Data, Springer, 1989 (with R. Decker).

"Marketing an der Universität Karlsruhe" (Marketing at the University of Karlsruhe), Karlsruher Transfer, 5, 1989 (with R. Decker).Wolfgang Gaul

"Generalized Latent Class Analysis: A New Methodology for Market Structure Analysis", in Opitz, O. (Ed.): Conceptual and Numerical Analysis of Data, Springer, 1989 (with I. Böckenholt).

"Data Analysis and Decision Support", Applied Stochastic Models and Data Analysis, 5, 1989 (with M. Schader).

"Datenanalyse und Entscheidungsunterstützung" (Data Analysis and Decision Support), Studien zur Klassifikation, 19, 1989 (with M. Schader).

"Probabilistic Choice Behavior Models and Their Combination with Additional Tools Needed for Applications to Marketing", in De Soete, G./Feger, H./Klauer, K.C. (Eds.): New Develop­ments in Psychological Choice Modeling, North Holland, 1989, revised version of a paper published in Communication & Cognition, 20, 1987.

"PC-Gestütztes Marketing-Management" (PC-Supported Marketing Manage­ment), ONLINE '89 Proceedings, Kongress VI, 12. Europäische Kongress­messe für Technische Kommuni­kation, Hamburg, 1989 (with D. Baier, I. Böckenholt).

"Marketing Data Analysis by Dual Scaling", International Journal of Research in Marketing, 5, 1988 (with S. Nishisato).

"Clusterwise Aggregation of Relations", Applied Stochastic Models and Data Analysis, 4, 1988 (with M. Schader).

"The Use of Data Analysis Techniques by German Market Research Agen­cies: A Causal Analysis", Journal of Business Research, 16, 1988 (with Ch. Homburg).

"Computer-Based Decision Support in Marketing", in Krause, B./Schreiner, A. (Eds.): HECTOR (HEterogeneous Computers TOgetheR), Volume I: New Ways in Education and Research, Springer, 1988 (with I. Böckenholt, M. Both, E. Espejo, Ch. Homburg, A. Schaer).

"Computerakzeptanz von Studenten: Ein Anwendungsbeispiel für Programme zur Kausal­ana­lyse" (Acceptance of Computers by Students: An Example of Applications of Causal Analysis Programs), Computer Applications University of Karlsruhe, 5, 1988 (with Ch. Homburg).

"Different Approaches to Covariance Structure Analysis: A Comparison", Operations Research Proceedings 1987, Springer, 1988 (with Ch. Homburg).

"Characterization of Research Papers by Data Analysis Techniques", in Gaul, W./Schader, M. (Eds.): Data, Expert Knowledge and Decisions: An Interdisci­plinary Approach with Emphasis on Marketing Applications, Springer, 1988 (with M. Schader).

"PROLOG-Based Decision Support for Data Analysis in Marketing", in Gaul, W./Schader, M. (Eds.): Data, Expert Knowledge and Decisions: An Interdisci­plinary Approach with Emphasis on Marketing Applications, Springer, 1988 (with I. Böckenholt, M. Both).

"A PROLOG-Based PC-Implementation for New Product Introduction", in Gaul, W./Schader, M. (Eds.): Data, Expert Knowledge and Decisions: An In­terdisciplinary Approach with Emphasis on Marketing Applications, Springer, 1988 (with A. Schaer).

"Probabilistic Multidimensional Scaling of Paired Comparisons Data", in Bock, H.H. (Ed.): Classification and Related Methods of Data Analysis, North Hol­land, 1988 (with I. Böckenholt).

"Probabilistic Choice Behavior Models and Their Combination with Additional Tools Needed for Applications to Marketing", Communication and Cognition, 20, 1987.

"Zum Einsatz von Datenanalysemethoden in der Marktforschung" (The Use of Data Analysis Techniques for Market Research), in Opitz, O./Rauhut, B. (Eds.): Ökonomie und Mathematik, Springer, 1987.

"Neue probabilistische Auswahlmodelle im Marketing" (New Probabilistic Choice Models in Marketing), Operations Research Proceedings 1986, Springer, 1987 (with I. Böckenholt).

"New Product Introduction Based on Pre-Test Market Data", in Micro and Macro Market Modelling: Research on Prices, Consumer Behaviour and Forecasting, EMAC/ESOMAR Symposium, Tutzing, 1987 (with I. Böckenholt).

"Zum Vergleich zweimodaler Clusteranalyseverfahren" (Comparison of Two Mode Clustering Algorithms), Methods of Operations Research, 57, 1987 (with M. Both).

"Typologisierung deutscher Marktforschungsinstitute: Ergebnisse einer em­pirischen Studie" (Characterization of German Market Research Institutes: Results of an Empirical Study), Marketing ZFP Heft 3, August 1986 (with F. Förster, K. Schiller).

"Analysis of Choice Behaviour via Probabilistic Ideal Point and Vector Models", Applied Stochastic Models and Data Analysis, 2, 1986 (with I. Böckenholt).

"Two-Mode Hierarchical Clustering as an Instrument for Marketing Research", in Gaul, W./Schader, M. (Eds.): Classifications as a Tool of Research, North Holland, 1986 (with E. Espejo).Wolfgang Gaul

"Multistate Reliability Problems for GSP-Digraphs", Lecture Notes in Eco­nomics and Mathematical Systems, 240, 1985 (with J. Hartung).

"Reliability-Estimation in Stochastic Graphs with Time-Associated Arc-Set Reliability Performance Processes", Annals of Discrete Mathematics, 28, 1985.

"Zur mehrdimensionalen Analyse von Bildinformationen bei Printwerbung für Imagery-Produkte" (Multidimensional Analysis of Print Ads Information for Imagery-Products), Vierteljahreshefte für Mediaplanung, Heft 4, 1985 (with I. Böckenholt).

"Empirische Ergebnisse zur Verbreitung und Nutzung von Statistik-Software in der Markt­forschung" (Empirical Results about Distribution and Usage of Statistics-Soft­ware in Market Research), Tagungsband der 3. Konferenz über die wissenschaft­liche Anwendung von Statistik-Software, Fischer, 1985 (with F. Förster, K. Schiller).

"Financial Planning via Stochastic Programming: A Stochastic Flows-with Gains Approach", Risk and Capital - Lecture Notes in Economics and Mathematical Systems, 227, 1984.

"Optimal Routes in Compound Transportation Systems", in Hauptmann, H./Krelle W./Mosler K.C. (Eds.): Operations Research and Economic Theory, Springer, 1984.

"Datenanalyse auf der Basis von Ordinalurteilen" (Data Analysis on the Basis of Ordinally Scaled Judgements), Studien zur Klassifikation, 15, 1984.

"Analysis of Sales of Price Promoted Consumer Goods Using Scanner Data", in Meth­od­ol­ogical Advances in Marketing Research in Theory and Practice, EMAC/ESOMAR Sym­po­sium, Copenhagen, 1984 (with M. Both).

"A Multidimensional Analysis of Consumer Preference Judgements Related to Print Ads", in Methodological Advances in Marketing Research in Theory and Practice, EMAC/ESOMAR Sym­po­sium, Copenhagen, 1984 (with I. Böcken­holt).

"Bounding Distributions for Random Project Completion Times", in Beck­mann, M.J./Eichhorn, W./Krelle, W. (Eds.): Mathematische Systeme in der Ökonomie, Athenaeum, 1983.

"Marketing-Logistik bei stochastischer Nachfrage" (Marketing-Logistics with Stochastic Demand), Operations Research Proceedings 1982, Springer, 1983.

"Short Term Financial Planning under Uncertainty within a Graphtheoretical Framework", in Göppl H./Henn, R. (Eds.): Geld, Banken und Versicherungen, VVW Karlsruhe, 1982.

"On Reliability in Stochastic Graphs", Networks, 12, 1982 (with O. Frank).

"On Stochastic Analysis of Project Networks", in Dempster, M.A.H. et. al. (Eds.): Deterministic and Stochastic Scheduling, Reidel Publishing Co., 1982.

"Project Scheduling via Stochastic Programming", Mathematische Operati­ons­forschung und Statistik, Ser. Optimization, 13, 1982 (with H.J. Cleef).

"Stochastische Projektplanung und Marketingprobleme", (Stochastic Project Scheduling and Marketing Problems), Methods of Operations Research, 44, 1981.

"Bounds for the Expected Duration of a Stochastic Project Planning Model", Journal of Information and Optimization Sciences, 2, 1981.

"Stichprobenpläne und Marketingsprobleme" (Sampling Plans and Marketing Problems), in Henn, R./Schips, B./Staehly, P. (Eds.): Quantitative Wirtschafts- und Unternehmens­for­schung, Springer, 1980.

"Aspekte der angewandten Statistik bei der Aufstellung und Überprüfung von Jahresab­schlüs­sen" (Aspects of Applied Statistics within Financial Accoun­ting), Die steuerliche Betriebs­prüfung, 20, September 1980 (with K.J. Schmitz).

"A Stochastic Flow Problem", Journal of Information and Optimization Sciences, 1, 1980 (with H.J. Cleef).

"A Barrier Method with Arbitrary Starting Point", Mathematische Operations­forschung und Statistik, Ser. Optimization, 10, 1979 (with J. Hartung).

"Remarks on Stochastic Aspects on Graphs", Optimization and Operations Research, Lecture Notes in Economics and Mathematical Systems, 157, 1978.

"Stochastische Analyse der Projektplanung", (Stochastic Aspects of Project Scheduling), ZAMM, 58, 1978.

"Zur Zuverlässigkeit graphischer Systeme" (Reliability of Graphtheoretical Systems), Operations Research Verfahren, 33, 1978.

"Some Structural Properties of Project Digraphs", Journal of Combinatorics, Information & System Sciences, 3, 1978.

"Zur Methode der paarweisen Vergleiche und ihrer Anwendung im Marketing­bereich" (Method of Paired Comparisons and its Application to Marketing), Methods of Operations Research, 35, 1978.

"Graphenprobleme aus dynamischer Sicht" (Graph Problems from a Dynamic Point of View), Operations Research Verfahren, XXVIII, 1977.

"Zur Lösung von Wegproblemen mit zeitabhängigen Beschränkungen" (Solu­tion of Route Problems with Time-Dependent Restrictions), ZAMM, 57, 1977.

"Zeit- und Kostenoptimierung von Bottleneck-Wegen" (Time- & Cost-Optimi­zation of Bottleneck-Routes), Proc. Operations Research, 7, 1977 (with J. Hartung).

"Über Flussprobleme in Netzwerken" (On Flow Problems in Networks), ZAMM, 56, 1976.

"Probleme bei gleichzeitigen Flüssen in Graphen" (Problems for Multicommo­dity Flows in Graphs), Operations Research Verfahren, XXIII, 1976.

"Optimale Wege bei zeitabhängigen Nebenbedingungen" (Optimal Routes with Time-De­pend­ent Restrictions), Heft 4, 21. Internationales Wissenschaft­liches Kolloquium, Ilmenau, 1976.

"Einige Aspekte in der Zuordnungstheorie" (Some Aspects in Assignment Theory), Zeitschrift für Operations Research, 19, 1975 (with A. Heinecke).

"Kapazitätsänderungen bei Netzwerken" (Capacity-Alterations of Networks), International Series of Numerical Mathematics, 29, 1975.

"Zur Berechnung gleichzeitiger Flüsse verschiedener Beschaffenheit" (Com­putation of Multi-Commodity Flows), Proc. in Operations Research, 5, 1975.

"On Constrained Shortest-Route Problems", Optimization and Operations Research, Lecture Notes in Economics & Mathematical Systems, 117, 1975.

"R-Satisfying Multi-Commodity Flows and Capacity-Alterations of Networks", Mathematica Balkanica, 4, 1974.

 

Talks / Invited Talks up to about 2000

 

„R-Satisfying Multi-Commodity Flows and Capacity Alterations of Networks“, 5th Balkan Mathematical Congress, Belgrad, Yugoslavia, 1974.

„Kapazitätsänderungen bei Netzwerken“, Oberwolfach-Tagung über Numerische Methoden graphentheoretischer & kombinatorischer Probleme, Oberwolfach, 1974.

„Über Flußprobleme in Netzwerken“, Gesellschaft für Angewandte Mathematik & Mechanik-Tagung, Göttingen, 1975.

„Zur Berechnung gleichzeitiger Flüsse verschiedener Beschaffenheit“, DGOR/SVOR-Tagung, Interlaken, Switzerland, 1975.

„On Constrained Shortest Route Problems“, Oberwolfach-Tagung über Optimierung und Operations Research, Oberwolfach, 1975.

„Zur Lösung von Wegproblemen mit zeitabhängigen Beschränkungen“, Gesellschaft für An­ge­wandte Mathematik & Mechanik-Tagung, Graz, Austria, 1976.

„Probleme bei gleichzeitigen Flüssen in Graphen“, Oberwolfach-Tagung über Operations Re­search, Oberwolfach, 1976.

„Über Wege maximaler Kapazität“, 1st Symposium on Operations Research, Heidelberg, 1976.

„Optimale Wege bei zeitabhängigen Nebenbedingungen“, 21st International Scientific Colloquium, TH Ilmenau, German Democratic Republic, 1976.

„Stochastische Aspekte der Projektplanung“, Gesellschaft für Angewandte Mathematik & Mechanik-Tagung, Copenhagen, Denmark, 1977.

„Über eine Klasse von Schätzern bei stochastischen Projektplanungsmodellen“, NRW-Statistik Kolloquium, Düsseldorf, 1977.

„Graphenprobleme aus dynamischer Sicht“, 2nd Symposium on Operations Research, Aachen, 1977.

„Zeit- und Kostenoptimierung von Bottleneckwegen“, DGOR-Tagung, Kiel, 1977 (with J. Hartung).

„Remarks on Stochastic Aspects on Graphs“, Workshop on Optimization and Operations Research, Bad Honnef, 1977.

„Sequential Bounding of the Reliability of Strictly Ordered Systems“, European Meeting of Statisticans, Oslo, Norway, 1978.

„Zur Zuverlässigkeit graphischer Systeme“, 3rd Symposium on Operations Research, Mann­heim, 1978.

„Some Properties of Strict Digraphs and Stochastic Applications“, Workshop on Combinatorial Optimization, Bonn, 1978.

„Einige Fragestellungen zur Zuverlässigkeitstheorie“, Fernuniversität Hagen, 1978.

„Stichproben bei partieller Kenntnis der Populationsstruktur“, Universität Karlsruhe (TH), 1979.

“Statistical Methods for Marketing Problems“, 3rd European Congress on Operations Research, Amsterdam, Netherlands, 1979.

„Reliability-Estimation for Generalized Series-Parallel Systems with Time-Associated Performance Process“, 3rd International Symposium on Measurement and Control, Grenoble, France, 1979.

“Statistik auf Graphen“, 4th Symposium on Operations Research, Saarbrücken, 1979.

“On Path Extrema in Stochastic Acyclic Graphs“, (Invited Talk) 12th European Meeting of Statisticans, Varna, Bulgary, 1979.

„Wegextrema in stochastischen Graphen“, Symposium über Statistik, Ökonomie und Ent­schei­dungstheorie, Paderborn, 1979.

„Flows in Graphs and Stochastic Programming“, 5th Symposium on Operations Research, Köln, 1980 (with H.J. Cleef).

“On Stochastic Analysis of Project Networks“, NATO Advanced Study and Research Institute on Theoretical Approaches to Scheduling Problems, Durham, England, 1981.

„Stochastische Projektplanung und Marketingprobleme“, 6th Symposium on Operations Research, Augsburg, 1981.

„Marketing-Logistik bei stochastischer Nachfrage“, 11th Annual DGOR-Meeting, Frankfurt, 1982.

„Loglineare Modelle für Marketinganwendungen“, 7th Symposium on Operations Research, St. Gallen, Switzerland, 1982.

„Optimale Wege bei der Benutzung verschiedener Transportsysteme“, 27th International Scientific Colloquium, TH Ilmenau, German Democratic Republic, 1982.

„Short-Term Financial Planning under Uncertainty within a Graphtheoretical Framework“, 2nd Symposium on Money, Banking and Insurance, Karlsruhe, 1982.

„Paarweise Vergleiche für Marketing-Anwendungen“, (Invited Talk), Universität Mannheim, 1983.

„Die Anwendung der Stochastischen Programmierung auf Marketing-Probleme“, Tagung der Kommission Marketing im Verband der Hochschullehrer für Betriebswirtschaft e.V., Schloß Gracht, 1983.

„Recent Developments in the Analysis of Qualitative Data“, XII Annual Conference of the European Marketing Academy, Grenoble, France, 1983.

„Financial Planning via Stochastic Programming: A Stochastic Flows-with Gains Approach“, 2nd Workshop on Risk and Capital, Ulm, 1983.

„Preispolitische Grundbegriffe - Ihre Bedeutung für das Marketing“, (Invited Talk) Marketing-Club Karlsruhe e.V., Karlsruhe, 1983.

„Neuere Entwicklungen der Analyse qualitativer Marketing-Daten“, Bundeswehrhoch­schule Hamburg, 1983.

„Stochastic Programs and their Deterministic Subprogram Sequence Solution“, IIASA Laxenburg, Österreich, 1983.

„Multidimensional Reliability Problems for GSP-Digraphs“, Oberwolfach-Tagung über Operations Research, Oberwolfach, 1984 (with J. Hartung).

„Stochastische Programme und ihre Lösung durch Folgen deterministischer Unter­pro­gramme“, Hochschule der Bundeswehr, München, 1984.

„Datenanalyse auf der Basis von Ordinalurteilen“, Tagung der Gesellschaft für Klassifikation, Hofgeismar, 1984.

„Konsumentenbeurteilungen von Werbebotschaften“, Verhaltenswissenschaftliches Kolloquium, Paderborn, 1984.

„Generalized Thurstonian Scaling, Part I“,(Invited Talk) University of Stockholm, Schweden, 1984.

„A Multidimensional Analysis of Consumer Preference Judgements Related to Print Ads“, EMAC/ESOMAR Symposium on Methodological Advances in Marketing Research in Theory and Practice, Copenhagen, Dänemark, 1984 (with I. Böckenholt).

„Analysis of Sales of Price Promoted Consumer Goods Using Scanner Data“, EMAC/ESOMAR Symposium on Methodological Advances in Marketing Research in Theory and Practice, Copenhagen, Dänemark, 1984 (with M. Both).

„Generalized Thurstonian Scaling of Advertising Messages“, TIMS/ORSA Marketing Science Conference, Nashville, USA, 1985.

„Empirische Ergebnisse zur Verbreitung und Nutzung von Statistik-Software in der Marktforschungspraxis“, 3. Konferenz über wissenschaftliche Anwendung von Statistik-Software, München, 1985 (with F. Förster/K. Schiller).

„PENCLUS (PENalty CLUStering) for Marketing Applications“, 9. Jahrestagung der Gesellschaft für Klassifikation e.V., Karlsruhe, 1985 (with M. Both).

„Two-Mode Hierarchical Clustering as an Instrument for Marketing Research“, 9. Jahrestagung der Gesellschaft für Klassifikation e.V., Karlsruhe, 1985 (with E. Espejo).

„Two-Mode Analysis of Advertising Messages for Imagery Products“, ORSA/TIMS Marketing Science Conference, University of Texas at Dallas, USA, 1986.

„Stochastic Network Problems and Their 'Deterministic Modified Network Problem Sequence' Solution“,(Invited Talk) Southern Methodist University, Dallas/Texas, USA, 1986.

„Probabilistic Choice Behavior Models with Applications to Marketing“,(Invited Talk) University of California at Los Angelos, USA, 1986.

„Segmentation Possibilities within Probabilistic Choice Models“,(Invited Talk) University of Illinois at Urbana-Champaign, USA, 1986.

„Probabilistic Choice Behavior Models“,(Invited Talk) AT&T Bell Laboratories, Murray Hill, New Jersey, USA, 1986.

„Measuring Consumer's Responses to Advertising via Recently Developed Data Analysis Procedures“, (Invited Talk) AT&T Bell Communications Research, Livingston, New Jersey, USA, 1986.

„New Multivariate Analysis Procedures for the Evaluation of Consumer Responses to Marketing“,(Invited Talk) University of Rochester, New York, USA, 1986.

„Über Prognosemöglichkeiten für Sonderpreisaktionen unter Verwendung von Spread-sheets und Planungssprachen“, Annual DGOR-meeting, Ulm, 1986 (with M. Both).

„Neue probabilistische Auswahlmodelle im Marketing“, Annual DGOR-meeting, Ulm, 1986 (with I. Böckenholt).

„Consumer Behavior Analysis via Recently Developed Data Analysis Procedures“, 8th European Conference on Operational Research, Lisbon, Portugal, 1986, (with I. Böckenholt).

„New Results to Two-Mode Clustering with Relations to OR-Modelling“, 8th European Conference on Operational Research, Lisbon, Portugal, 1986.

„Ein Vergleich zweimodaler Clusteranalyseverfahren“, Symposium on Operations Research, Darmstadt, 1986 (with M. Both).

„Zur Klassifikation von Marktforschungsinstituten nach ihrer Methodennutzung im Bereich Datenanalyse,“ 10. Jahrestagung der Gesellschaft für Klassifikation, Münster, 1986.

„Segmentation Possibilities within Probabilistic Consumer Choice Models“, Annual Conference of the European Marketing Academy, Helsinki, Finland, 1986.

„Analyse von Marketing-Mix-Strategien unter Verwendung eines Spreadsheetprogramms“, IBM-Kongress, Düsseldorf, 1986 (with I. Böckenholt).

„Analyse von Sonderpreisaktionen unter Verwendung einer Planungssprache und eines Spreadsheetprogramms“, IBM-Kongress, Düsseldorf, 1986 (with M. Both).

„PROLOG-based Decision Support for Data Analysis in Marketing“, International Workshop on Data Analysis, Decision Support and Expert Knowledge Representation in Marketing and Related Areas of Research, Karlsruhe, 1987 (with I. Böckenholt/M. Both).

„A PROLOG-Based PC-Implementation for New Product Introduction“, International Work­shop on Data Analysis, Decision Support and Expert Knowledge Representation in Marketing and Related Areas of Research, Karlsruhe, 1987 (with A. Schaer).

„An Expert System Prototype for Analyzing Marketing Data“, ORSA/TIMS Marketing Science Conference, Paris, France, 1987 (with I. Böckenholt/M. Both).

„Segmentation Based Analysis of Probabilistic Choice Data“, ORSA/TIMS Marketing Science Conference, Paris, France, 1987 (with I. Böckenholt).

„Probabilistic Multidimensional Scaling of Paired Comparisons Data“, 1st Conference of the International Federation of Classification Societies (IFCS), Aachen, 1987 (with I. Böckenholt).

„Hierarchical Clustering with Missing-Values in One-Mode and Two-Mode Proximity Data“, 1st Conference of the International Federation of Classification Societies (IFCS), Aachen, 1987 (with I. Böckenholt/E. Espejo).

„Market Research Support by Data Analysis Techniques: Theoretical Development vs. Practical Applications“,DGOR/NSOR-meeting, Veldhoven/Eindhoven, Niederlande, 1987.

„Different Approaches to Covariance Structure Analysis: A Comparison“, DGOR/ NSOR-meeting, Veldhoven/Eindhoven, Niederlande, 1987 (with Ch. Homburg).

„New Developments in Cluster Analysis“,(Invited Talk) University of Western Ontario, London, Canada, 1987.

„Probabilistic Choice Models: Comparisons and New Results“,(Invited Talk) OISE, Department of Measurement, Evaluation & Computer Applications, Toronto, Canada, 1987.

„New Results in Two-Mode Clustering of Marketing Data“, 14th Annual Conference of the European Marketing Academy, Toronto, Canada, 1987.

„Probabilistic Choice Models in Marketing: Comparisons and New Results“, ORSA/ TIMS-meeting, St. Louis, USA, 1987.

„New Product Introduction Based on Pre-Test Market Data“, EMAC/ESOMAR Symposium on Micro and Macro Market Modelling: Research on Prices, Consumer Behaviour and Forecasting, Tutzing, 1987 (with I. Böckenholt).

„A Knowledge-Based System for Supporting Data Analysis Problems“, GMÖOR-Conference, Passau, 1987 (with I. Böckenholt/M. Both).

„MEXICO - A Knowledge-Based Prototype for New Product Introduction“, GMÖOR- Conference, Passau, 1987 (with A. Schaer).

„Describing Marketing Phenomena via Optimally Grouped Relations: Some Experiences with the CAR-Model“,(Invited Talk) OISE, Department of Measurement, Evaluation & Computer Applications, Toronto, Canada, 1988.

„Probabilistic Choice Behavior Models for Marketing Applications“,(Invited Talk) University of Toronto, Canada, 1988.

„How to Cluster Relations Describing Marketing Phenomena“,(Invited Talk) Vanderbilt University, Nashville, USA, 1988.

„Describing Marketing Phenomena via Optimally Grouped Relations: Some Experiences with the CAR-Model“,(Invited Talk) University of Illinois at Urbana-Champaign, USA, 1988.

„Datenanalyse und Entscheidungsunterstützung“, (Plenary Talk) 12. Annual Meeting of GfKl, Darmstadt, 1988 (with M. Schader).

„Neuere Entwicklungen im Bereich der Kovarianzstrukturanalyse“, 12. Annual Meeting of GfKl, Darmstadt, 1988 (with Ch. Homburg).

„MEXICO-Prototyp eines wissensbasierten Systems zur Unterstützung der Klassifikation von Neuprodukteinführungsentscheidungen“, 12. Annual Meeting of GfKl, Darmstadt, 1988 (with A. Schaer).

„Pre-Test Market Modelling for Assessing New Product Marketing Decisions“, ORSA/TIMS Marketing Science Conference, Seattle, 1988 (with I. Böckenholt).

„Analyzing Marketing Data by Methods for the Selection of Optimal Covariance Structure Models“, EURO/TIMS-Conference, Paris, France, 1988 (with Ch. Homburg).

„Decision Support for New Product Introduction Management“, EURO/TIMS Conference, Paris, France, 1988 (with I. Böckenholt).

„Zur Klassifikation von Relationen: Eine Fallstudie“, DGOR-Annual Meeting, Berlin, 1988 (with M. Schader).

„Exploratory Approaches for the Analysis of Causal Models: Marketing Applications and Theory“, DGOR-Annual Meeting, 1988 (with Ch. Homburg).

„Assessment of Price Acceptance Levels for New Products“, DGOR-Annual Meeting, Berlin, 1988 (with I. Böckenholt).

„Clusterwise Aggregation of Relations: An Additional Tool of a Data Analysis Decision Support System“,(Invited Talk) Istituto di Scienze dell'Informazione, Università di Bari, Bari, Italien, 1988.

„Decision Support for Marketing Problems“,(Invited Talk) CSATA-Technopolis Centre, Bari, Italien, 1988.

„A New Approach to Market Structure Analysis: Simultaneous Classification and Multi­di­men­sional Scaling“, ORSA-TIMS Conference, Denver, Colorado, USA, 1988 (with I. Böckenholt).

„Data Analysis and Decision Support“, (Invited Paper) 4th International Symposium on Applied Stochastic Models and Data Analysis, Nancy, France, 1988 (with M. Schader).

„Clusterwise Evaluation of Paired Comparisons“, 4th International Symposium on Applied Stochastic Models and Data Analysis, Nancy, France, 1988 (with M. Schader).

„PC-Gestütztes Marketing-Management“, ONLINE'89 Kongress IV, 12. Europäische Kon­greß­messe für Technische Kommunikation, Hamburg, 1989 (with D. Baier, I. Böckenholt).

„Eine Klassifikation von Modellen zur Abbildung von Kaufverhaltensmodellen“, 13. GfKl-Jahrestagung, Augsburg, 1989 (with R. Decker).

„Verallgemeinerte Latent Class Analysis: Ein neuer Ansatz zur Marktstrukturierung“, 13. GfKl-Jahrestagung, Augsburg 1989 (with I. Böckenholt).

„Decision Support for Marketing Problems“, TIMS-XXIX Meeting, Osaka, Japan, 1989.

„International Marketing Aspects with Regard to Latin American Countries“, TIMS-XXIX Meeting, Osaka, Japan, 1989.

„Probabilistic Choice Behaviour: Comparisons and New Results“,(Invited Talk) Hokkaido University, Sapporo, Japan, 1989.

„Clusterwise Aggregations of Relations: An Additional Tool of a Data Analysis Decision Support System“,(Invited Talk) Kyoto University, Kyoto, Japan, 1989.

„New Developments in Cluster Analysis“,(Invited Talk) Rikkyo (St. Paul's) University, Tokyo, Japan, 1989

„Probabilistic Choice Behaviour: Comparisons and New Results“, Industrial Products Research Institute, (Invited Talk) Tsukuba-Science-City, Japan, 1989.

„Probabilistic Choice Behaviour: Comparisons and New Results“, (Invited Talk) The National Center for University Entrance Examination, Tokyo, Japan, 1989.

„Wissensbasierte Entscheidungsunterstützung in Marktforschung und Marketing“, (Invited Talk) 24. Kongreß der deutschen Marktforschung, Stuttgart, 1989.

„PROLOG-Based Decision Support for Data Analysis“, International Symposium on Data Analysis and Learning Symbolic and Numeric Knowledge, Antibes, France, 1989 (with M. Schader).

„Penalty-Verfahren bei der Clusteranalyse“, DGOR-Annual Meeting, Kiel, 1989.

„Entscheidungsunterstützung bei der Auswertung von Primärforschungsdaten - Ein Konzept zur Verbindung von Wissensbasis, Datenbank und Methoden“, DGOR-Annual Meeting, Kiel, 1989 (with D. Baier).

„Marketing Management Decision Support“, GMÖOR-Conference, Ulm, 1989.

„Computergestützte Entscheidungsunterstützung im Marketing“, 9. Symposium - „Der Computer als Instrument der Forschung und Lehre in den Sozial- und Wirtschafts­wissen­schaften“, Universität Innsbruck, Österreich, 1989.

„Computer-Assisted Marketing Management“, NATO Advanced Workshop on Data, Expert Knowledge and Decisions, Universität der Bundeswehr Hamburg, 1989 (with M. Schader).

„Computergestütztes Marketing“, Vortragsreihe im Rahmen einer Vorlesung am Institut für Höhere Studien, Wien, Österreich, 1989.

„Klassifikation im Rahmen computergestützter Entscheidungsfindung im Marketing“, 14. GfKl-Jahrestagung, Marburg, 1990.

„What's the News in Data Analysis“, Vortragsreihe im Rahmen des ERASMUS- Programmes, Université Libre de Bruxelles, Brüssel, Belgien, 1990.

„Computergestützte Entscheidungshilfen im Marketing“, Tagung der Kommission OR des Verbandes der Hochschullehrer für Betriebswirtschaftslehre, Universität Mannheim, 1990.

„Veränderung der Märkte, Internationalisierung des Wettbewerbs, Herausforderungen an die Unternehmen“, Europäischer Manager-Dialog, 1990.

„Expert Systems in Marketing: Comparisons and Demonstration of Running Systems“, International DGOR/GMÖOR/ÖGOR/SVOR Conference on Operations Research, Vienna,1990 (with R. Decker).

„Two-Mode Pyramidal Clustering: A New Way Towards Marketing Data Analysis“, Interna­tional DGOR/GMÖOR/ÖGOR/SVOR Conference on Operations Research, Vienna, 1990 (with M. Schader).

„Auswertung von Marketing-Daten mit Computerunterstützung“, Konferenz über die Analyse von Mikrodaten als Basis wirtschaftspolitischer Entscheidungen, Konstanz, 1990.

„Computer-Assisted Marketing Enriched by Capabilities of Knowledge-Based Systems“, EMAC/ESOMAR-Symposium, Athens, 1990 (with D. Baier).

„Data Analysis Using the MARK2MAN (MARKet research and MARKeting MANagement) Software“, (Invited Talk) Ontario Institute for Studies in Education (OISE), Department of Measurement, Evaluation, & Computer Applications, Toronto, Canada, 1990.

„Computer-Assisted Marketing“, ORSA/TIMS Conference, Philadelphia, USA, 1990.

„Data Analysis Using the MARK2MAN (MARKet research and MARKeting MANagement) Software“, (Invited Talk) Rutgers University, Newark, USA.

„Classification for Marketing Purposes: New Results, Applications and Computer-Aided Demonstrations“, (Invited Talk) International Symposium on Theory and Practice of Classification, Moskau, 1990.

„Hierarchische und pyramidale Klassifikation bei fehlenden Daten“, 15th Annual Meeting of GfKl, Salzburg, Austria, 1991 (with M. Schader).

„Computer-Assisted Market Research and Marketing (Where are the Expert Systems?)“, (Invited Talk) 30. Annual EPhMRA Conference, Vienna, 1991.

„Computergestützte Entscheidungsunterstützung in Marktforschung und Marketing Management“, Sitzung der Arbeitsgruppe PECOR der DGOR, Universität-Gesamthoch­schule Kassel, 1991 (with D. Baier).

„Computergestützte Entscheidungsunterstützung in Marktforschung und Marketing“, (Invited Talk) Freie Universität Berlin, 1991.

„Hierarchical vs. Pyramidal Classification when Dissimilarity Data have Missing Values“, 3rd Conference of IFCS, Edinburgh, Scotland, 1991 (with M. Schader).

„Computer-Assisted Market Research and Marketing“, 20th Annual DGOR-conference, Stuttgart-Hohenheim, 1991.

„Positioning Analysis using Knowledge-Based Support“, 3rd International Workshop on Data, Expert Knowledge, and Decisions, Reisensburg Castle, 1991 (with D. Baier/F. Wartenberg).

„Knowledge-Based Support in Quantitative Consumer Behaviour Analysis“, 3rd International Workshop on Data, Expert Knowledge, and Decisions, Reisensburg Castle, 1991 (with R. Decker/M. Plötz).

„Pyramidal Clustering with Missing Values“, INRIA Conference about Symbolic-Numeric Data Analysis and Learning, Paris, France, 1991 (with M. Schader).

„Marketing and Computer Assisted Support“, EURO XII/TIMS XXXI Joint International Conference, Helsinki, Finland,1992.

„Market Research and Analysis Models and Techniques“, EURO XII/TIMS XXXI Joint International Conference, Helsinki, Finland, 1992.

„Computer-Assisted Decision Support for Market Research and Marketing Problems“, IFAC/IFORS Conference on Support Systems for Decision and Negotiation Processes, Warsaw, Poland, 1992.

„Marketing Data Analysis by Pyramidal Clustering“, the TIMS Marketing Science Conference, London, 1992 (with M. Schader).

„Klassifikation von Ansätzen zur Schlußfolgerung unter Unsicherheit in Expertensystemen“, 16. Annual Meeting of GfKl, Dortmund, 1992 (with A. Rese).

„Pyramidal Segmentation: A New Approach for Market Structuring“, TIMS/ORSA Conference, Orlando, USA, 1992.

“Computer Assisted Marketing”, (Invited Talk) Columbia University, NY, 1992.

“Computer Assisted Marketing”, (Invited Talk) Cornell University, Johnson Graduate School of Management, Ithaca, NY, 1992.

“Clusterwise Aggregation of Relations”, (Invited Talk) Purdue University Lafayette, 1992.

“OR Modeling of New Segmentation Approaches”, (Invited Talk) George Mason University Fairfax, Virginia, USA, 1992.

“Algorithm for New Product Idea Generation”, ORSA/TIMS Conference, San Francisco, USA, 1992.

“New Product Introduction (NPI) as Application of Operations Management”, POMS Annual Meeting, Orlando, Florida, USA, 1992.

August GMÖOR Hamburg

September DGOR Aachen

November GfKl Sek DA-NK Freiburg

„Optimally Grouped Relations: Some Experiences with the CAR (Clusterwise Aggregation of Relations) Model, IFCS-Conference, Charlottesville, USA.

“Marketing Research: Data, Modeling Process, and Decisions: PART II: Marketing Planning”, (Invited Presentation), OR-Meeting, Bern, Schweiz, 1993.

“Marketing Data Analysis and Decision Support”, Barcelona, Spain 1993

“Marketing Decisions and Operations Research Methodology” (Semi Plenary Talk), Amsterdam, NL, 1993.

“OR-Modeling of New Segmentation Approaches”, (Invited Talk) Universität Pompeu Fabra, Barcelona, Spain 1993.

Marketing Data Analysis: New Results, Applications& Computer-Aided Demonstrations”, (Course for Students) Universität Pompeu Fabra, Barcelona, Spain 1993.

10.10.94 Vortrag Thessaloniki (Invited Talk)

1.-3.5.95 Trondheim (Invited Talk)

“Simultaneous vs. Sequential Approaches for Solving Data Analysis Problems”, Köln, 1995.

16.-18.6.95 Copenhagen

“MMSS: Pilgrimage to the Ivory Tower?”, TIMS-Conference, Sydney, Australia, 1995.

20.10.95 Vortrag St. Gallen, Hochschullehrertagung, Kom. OR

„Generalized Thurstonian Scaling of Consumer Behavior Data“, French-German Workshop, Universität Potsdam, 1996.

“Ivory-Tower and Lighthouse: Landmarks of Quantitative Marketing”, Humboldt-Universität, Berlin, 1996.

“Market Segmentation and Product Positioning via Generalized Thurstonian Scaling of Consumer Behavior Data”, CLAD, Lissabon, Portugal, 1996.

“Classification of Pricing Strategies in a Competitive Environment”, 21st Annual Conference of GfKl, Potsdam, 1997 (with M. Löffler).

“Segment-Specific Behavioral Aspects of Designing Information Services in the Internet”, 21st Annual Conference of GfKl, Potsdam, 1997 (with T. Klein, F. Wartenberg).

“Supporting Internet Access Decisions: A Comparison of Internet Services Providers”, 21st Annual Conference of GfKl, Potsdam, 1997 (with T. Klein, F. Wartenberg).

“An Optimal Product Positioning Procedure Using a Probabilistic Ideal Point Model Formulation”, 21st Annual Conference of GfKl, Potsdam, 1997 (with D. Baier).

“Market Segmentation and Product Positioning via Generalized Thurstonian Scaling”, 1997 INFORMS Marketing Science Conference, University of California, Berkeley, USA, 1997.

“Advances in Cluster Analysis and Applications to Economics” (Invited Paper), 51st ISI-Symposium, Isanbul, Turkey, 1997.

“Advances in Cluster Analysis and Applications to Economics” (Invited Paper), JOCLAD Conference, Porto, Portugal, 1997.

„Classification and Positioning of Data Mining Tools, 22nd Annual Conference of GfKl, Dresden, 1998 (with F. Säuberlich).

„A Classification Approach for Competitive Pricing“, 22nd Annual Conference of GfKl, Dresden, 1998 (with M. Löffler).

“Electronic Market Place as Target Group Oriented Concept of Integrated Online Services”, 22nd Annual Conference of GfKl, Dresden, 1998 (with T. Klein).

“Product Line Optimization and Sales Force Management: Two Areas where Marketing Meets Operations Research, (Invited Talk) University of Trondheim, Norway, 1998.

“Advances in Positioning and Segmentation with Applications to Marketing, (Invited Talk) University of Trondheim, Norway, 1998.

“Managing Pricing Decisions in Retailing for Product Categories”, Marketing Science Conference, INSEAD, France, 1998 (with M. Löffler).

“Advances in Clustering and Data Analysis with Applications to Economics”, (Plenary Talk) IFCS-Symposium, Rome, Italy, 1998.

“Data Mining – a New Label for an Old Problem?”, (Invited Talk) Workshop “Data Mining and Business Applications in Osaka, 24.9. – 25.9.1998.

“Data Mining – eine neue Bezeichnung für ein altes Problem?” Herbsttagung der Sektion DA-NK der GfKl in Regensburg, 20.-21.11.1998.

“Is Data Mining the Key to Knowledge Discovery?”, (Plenary Talk) 23rd Annual Conference of GfKl, University of Bielefeld, 1999.

“Decision Tree Construction by Using Association Rules”, 23rd Annual Conference of GfKl, University of Bielefeld, 1999 (with F. Säuberlich).

“Data Mining: A New Label for an Old Problem?”, (Plenary Talk), Dortmund, 1999.

„Data Mining: A New Challenge“, International Conference on Large Scale Data Analysis, Köln, 25.-28.05.1999.

“Elektronische Dienstleitungen und Marketing im Informationszeitalter”, VIROR-Ringvorle­sung, Juli 1999.

“Kundenbindung zwischen Electronic Commerce und Vertriebsinformationssystemen”, (Eingeladener Vortrag) Kongreß für Informationssysteme, Fribourg, Schweiz, August 1999.

„Marketing Data Mining“, Montpellier, France, September 1999.

“Data Mining: An Assessment and Discussion of New Directions”, (Invited Talk) Krakau, Polen, 1999.

“Mining Web Navigation Path Fragments”, Workshop on Web Mining for E-Commerce-Challenges and Opportunities, 6th ACM SIG KDD International Conference on Knowledge Discover and Data Mining, WEBKDD 2000, Boston, MA, USA (with L. Schmidt-Thieme).

“Data Mining and Beyond? Web Mining?” Talk within the Invited Session on Data Mining and Business Applications 7th Conference of the International Federation of Classification Societies, Namur, Belgium, July 11 – 14, 2000.

“Introduction to Data Mining and Business Applications” Talk within the Invited Session on Data Mining and Business Applications 7th Conference of the International Federation of Classification Societies, Namur, Belgium, July 11 – 14, 2000.

„From Data Mining to Web Mining“, Rom

“Online Conjoint Analysis of Designs for Multimedia Enhanced Teaching”, 25th Annual GfKl-Conference, Universität München, 14.-16. März 2000 (with L. Schmidt-Thieme).

„Identifying Interesting Frequent Subsets by Generative Models of Distributions on Multisets“, 25th Annual GfKl Conference, Universität München, 14. – 16. März 2001 (with L.Schmidt-Thieme).

“Recommender Systems and e-Marketing”, 25th Annual GfKl-Conference, Universität München, 14.-16. März 2000 (with L. Schmidt-Thieme).

“Frequent Substructures in Web Usage Mining – A Unified Approach“, Web Mining Work­shop, First SIAM International Conference on Data Mining, Chicago, USA, April 5 – 7, 2001 (with L. Schmidt-Thieme).

“WEB MINING und Recommendersysteme für eMarketing-Anwendungen“, (Eingeladener Vortrag), Technische Universität Cottbus, 14.6.2001.

“Web Mining and Personalization for e-Customer Care“ Talk within the Invited Session on Challenges in Market Research: From Conjoint Analysis to Web Mining, International Meeting of the Psychometric Society, University of Osaka, Japan, July 15 – 20, 2001.

“Recommender Systems based on Navigation Path Features”, Workshop on Mining Web Log Data Across All Customer Touch Points, WEBKDD 2001, San Francisco, CA, USA, August 26, 2001 (with L. Schmidt-Thieme).

“WEB MINING: Erfolgsgarantie im e-Business?” Ganztägiges Tutorial im Rahmen der GOR-Jahrestagung, Duisburg, 2001 (with L. Schmidt-Thieme).

“Web Mining and Personalization for eCustomer Care”, Workshop IRGREM (International Research Group for Relationship and E-Marketing), University of Pau, France, 22.9.2001.

“Web Mining und Recommendersysteme”, Herbsttagung der AG-DANK der GfKl, TU Berlin, 28./29.9.2001.

“B2B / B2C Customer Programs: First Survey Results“, Workshop on (e)CRM, University of Karlsruhe, November 9, 2001 (together with M. Volkmann).

 

Further Activities up to about 2000 / Weitere Aktivitäten bis etwa 2000

Member of Scientific Societies / Mitglied wissenschaftlicher Gesellschaften

ACR (Association for Consumer Research)

DGOR (Deutsche Gesellschaft für Operations Research) up to 1998

DMV (Deutsche Mathematiker-Vereinigung)

Deutsche Statistische Gesellschaft

EMAC (European Marketing Academy)

Forschungsgesellschaft "Geld-Banken-Bausparkassen-Versicherungen" an der Universität Karlsruhe e.V.

GfKl (Gesellschaft für Klassifikation)

GI (Gesellschaft für Informatik)

GMÖOR (Gesellschaft für Mathematik, Ökonomie und Operations Research) up to 1998

GOR (Gesellschaft für Operations Research) since 1998

GSP (Gesellschaft für Strategische Planung)

IFCS (International Federation of Classification Societies)

INFORMS (Institute for Operations Research and the Management Sciences)

TIMS (The Institute of Management Science)

Verband der Hochschullehrer für BWL

 

Offices / Ämter in Scientific Societies

Member of Council of IFCS (International Federation of Classification Societies), 1987 - 1990 and 1994 - 2001.

Member of Board of GfKl (Gesellschaft für Klassifikation), 1989 - 1995.

President of GfKl,1995 - 1998.

Member (Responsibility: Conferences) of the Board of GfKl, since 1998.

Member (Responsibility: Treasurer) of the Board of GMÖOR (Gesellschaft für Mathematik, Ökonomie und Operations Research), 1990 - 1995.

Member of Scientific Council of GMÖOR, 1996 - 1998.

Member of Scientific Council of GOR (Gesellschaft für Operations Research), since 1998.

Head of Program Committee of Conferences of DGOR (Deutsche Gesellschaft für Operations Research) in 1991 and GfKl in 1994, 1998, 1999, 2000, 2002.

Local Organizer of the GfKl-Conference in Karlsruhe, 1985.

 

Offices / Ämter in Faculty and University Administration

Coordinator for Faculty Room Assigments, since 1984.

Chairperson of Commission of Faculty Structure, 1987 - 1994.

Vice-Dean of the Faculty, 1989 - 1990.

Member of Council of Faculty, since 2001.

Member of Further Commissions of the Faculty.

 

Consulting / Beratungstätigkeiten

Main fields of application: market research, international marketing, sales force man­agement, segmentation & positioning, consumer behavior, applications in business administration and operations research, web intelligence.

 

Additional Scientific Activities / Weitere wissenschaftliche Aktivitäten

Member of programme committees, organizer of special sections of conferences, local organizer of meetings, invited speaker at international conferences, referee of papers in journals on operations research, applied mathematics, data analysis, statistics, computer science, and marketing as well as refereed proceedings volumes.

 

Former Associates at the Institute

Juliane Bayer 

Sekretariat
Eintritt: Januar 1980

https://marketing.iism.kit.edu/21_83.php

 

 

 

Rosemarie Nickel 

Sekretariat

Eintritt: Juli 2007

 

 

 

 

Dr.-Ing. Dominique Vincent

Wissenschaftlicher Mitarbeiter

 

Eintritt:  Dezember 2009

Austritt: Dezember 2014

https://marketing.iism.kit.edu/21_169.php

 

 

 

 

 

Dr. rer. pol. Christoph Winkler

Wissenschaftlicher Mitarbeiter

 

Eintritt:  Dezember 2007

Austritt: Juli 2013

https://marketing.iism.kit.edu/21_198.php

 

 

 

 

 

Dr. rer. pol. Rebecca Klages

Wissenschaftliche Mitarbeiterin

 

Eintritt:  April 2008

Austritt: Februar 2012

https://marketing.iism.kit.edu/21_167.php

 

 

 

 

 

Dr. rer. pol. Dominic Gastes

Wissenschaftlicher Mitarbeiter

 

Eintritt:  November 2005

Austritt: Februar 2011

 

https://marketing.iism.kit.edu/21_173.php

http://dominic-gastes.de

 

 

Dr. phil. Gunter Janssen

Wissenschaftlicher Mitarbeiter

 

Eintritt:  November 2005

 

 

Dipl.-Inform. Erika Wiebe

Wissenschaftliche Mitarbeiterin

 

Eintritt:  März 2006

Austritt: März 2009

 

 

Dr. rer. pol. Christian Bomhardt

Wissenschaftlicher Mitarbeiter

 

Eintritt:  August 2002

Austritt: September 2007

 

 

Dr. rer. pol. Nadine Höchstötter (geb. Schmidt-Mänz)

Wissenschaftliche Mitarbeiterin

 

Eintritt:  September 2001

Austritt: März 2007

 

 

Dr. rer. pol. Volker Schlecht

Wissenschaftlicher Mitarbeiter

 

Eintritt:  März 2002

Austritt: Februar 2006

 

 

Dr. rer. pol. Bernd Stauß

Wissenschaftlicher Mitarbeiter

 

Eintritt:  Oktober 2000

Austritt: September 2005

 

 

Dr. rer. pol. Viktor Jung

Wissenschaftlicher Mitarbeiter

 

Eintritt:  September 2000

Austritt: April 2005

 

 

Dipl.-Oen., Dipl.-Ing.(FH) Karin Franzen  

Wissenschaftliche Mitarbeiterin

 

Eintritt:  September 2000

Austritt: September 2004

 

 

Dipl.-Wi.-Ing. Patrick Thoma

Wissenschaftlicher Mitarbeiter

 

Eintritt:  Dezember 2002

Austritt: Dezember 2003

 

 

Prof. Dr. Dr. Lars Schmidt-Thieme

Wissenschaftlicher Mitarbeiter

 

Eintritt:  Februar 1999

Austritt: Juni 2003

 

http://www.ismll.uni-hildesheim.de/personen/lst.html

 

Impressum / Kontakt

KIT 

Prof. Dr. Wolfgang Gaul

Postfach 69 80

D-76049 Karlsruhe

 

 
Telefon: +49721 608 - 43726

Telefax: +49721 608 - 47765

E-Mail: wolfgang gaul ∂does-not-exist.kit edu