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Research Area: Search Technologies |
Profile
Georges Dupret graduated as a civil engineer in Applied Mathematics from the University of Louvain, Belgium. He obtained his PhD from the University of Tsukuba, Japan for his work on spatial data forecasting based on Artificial Neural Network.
At the same time, he worked for the IBM TRL Research Laboratory in the field of Information Retrieval for the automatic identification of relevant topics and issues in a call center transaction data.
This involved the efficient approximation of Singular Value Decomposition of sparse, huge matrices. He continued this work in the IBM Research Laboratory in Zürich, Switzerland and extended it to Quality Insurance transactions.
After two years as a researcher in the Center for Web Research in Santiago, Chile, he is now working for Yahoo! Research Latin America. Topics of interest are web mining, clickthrough data analysis and models, query disambiguation and recommendation and automatic taxonomy construction.
Recent Publications, Projects and News
- A Bayesian Model of Query Log Generation Dupret, Georges ; Piwowarski, Benjamin ; Murdock, Vanessa, 2007
- An Extension of Precision-Recall with User Modelling (PRUM): Application Piwowarski, B. ; Gallinari, P. ; Dupret, G., Transactions on Information Systems (TOIS), 2007
- Principal Components for Automatic Term Hierarchy Building Dupret, G. ; Piwowarski, B., LNCS 4209, Springer, 2006
- Evaluation in (XML) Information Retrieval: Expected Precision-Recall Piwowarski, B. ; Dupret, G., SIGIR 2006: Proceedings of the 28th Annual International ACM SIGIR, 2006
- Discovering a Term Taxonomy from Term Similarities using Principal Bast, Holger ; Dupret, Georges ; Majumdar, Debapriyo ; Piwowarski, Benjamin, Lecture Notes in Artificial Intelligence, 2006
- A Statistical Model of Query Log Generation Dupret, G. ; Piwowarski, B. ; Hurtado, C. ; Mendoza, M., LNCS 4209, Springer, 2006
- Automatic Query Recommendation using Click-Through Data Dupret, G. ; Mendoza, M., ISSN 1571-5736, 2006
- Recommending Better Queries Based on Click-Through Data Dupret, G. ; Mendoza, M., LNCS 3246, Springer, 2005
- Deducing a Term Taxonomy from Term Similarities Dupret, Georges ; Piwowarski, Benjamin, E{CML}/{PKDD} 2005 {W}orkshop on {K}nowledge {D}iscovery and {O}ntologies, 2005
- Modeling user search behavior Baeza-Yates, Ricardo ; Hurtado, Carlos ; Mendoza, Marcelo ; Dupret, Georges, Proceedings of the Third Latin American Web Conference, IEEE Cs., 2005
- Latent Semantic Indexing with a Variable Number of Orthogonal Factors Dupret, G, Proceedings of the RIAO 2004, Coupling approaches, coupling media, Centre de Hautes Etudes Internationales d'informatique documentaire,, 2004
- Latent concepts and the number orthogonal factors in latent semantic Dupret, G, Proceedings of the 26th annual international ACM SIGIR conference, ACM Press, 2003
- Bootstrap Re-sampling for Unbalanced Data in Supervised Learning Dupret, M. G. And Koda, European Journal of Operational Research, 2001
- Estimation of Singular Values of Very Large Matrices Using Random Sampling Kobayashi, M. ; Dupret, G., Computers and Mathematics with Applications. No. 3983, 2001
- Detecting and Tracking the Evolution of Topics in News Databases Kobayashi, M. ; Malassis, L. ; Dupret, G. ; King, O., IBM Tokyo Research Laboratory, Research Report RT-5182, 2001
- Bootstrap Training for Empirical Neural Network Learning Dupret, G. ; Koda, M., The Fifth Conference of the Association of Asian-Pacific Operations Research Societies within IFORS, 2000
- Efficient Estimation of Singular Values for Searching Very Large and Dynamic Web Databases Kobayashi, M. ; Dupret, G., WWW9: Ninth World Wide Web Conference, 2000, Amsterdam, 2000
- Bootstrapping for Neural Network Learning Dupret, G. ; Koda, M., Fall National Conference of Operational Research Society of Japan, 1999
- Spatial Analysis and Forecasting: Identical Units Neural Network Dupret, G. ; Koda, M. ; Koshizuka, T., Spring National Conference of Operational Research Society of Japan, 1999
- Multi-Perspective Retrieval, Ranking and Visualization of Web Data Kobayashi, M. ; Dupret, G. ; King, O. ; Samukawa, H. ; Takeda, K., International Symposium on Digital Libraries 1999, Tsukuba ISDL'99, 1999
