Phone: ††† +518-442-2608
My research interests are in natural language processing (NLP) and information processing and retrieval (IR). I have been doing work in the following areas:
® Computational Linguistics: robust text processing, information extraction, fast parsing, semantic analysis and discourse processing.
® Information Retrieval: automated indexing, linguistic indexing, topic detection and tracking, spoken language filtering and retrieval, cross-lingual retrieval, interactive IR.
® Automated Summarization: automated abstracting, multi-document summarization.
® Open-Domain Question-Answering: automated question answering from unstructured data.
® Interactive Dialogue Systems: dialogue modeling, spoken-language dialogues, human-machine conversation, semantics of automated dialogue, automated call centers.
® Knowledge Acquisition: corpus analysis, text mining, machine learning.
® Logic Programming: Logic grammars, reversible grammars.
® Artificial Intelligence: meaning representation.
for Informatics, Logics & Security Studies (ILS).
Iím co-director (with
AMITIES: Automated Multilingual
Interaction with Information and Services. This
multi-year project is funded jointly by the European
Commission and the Defense Advanced
Research Projects Agency (DARPA). Along with other partners of the
trans-Atlantic consortium, we are developing automated multilingual call center
applications through cutting-edge research into speech and natural language
processing. ILS partners on AMITIES include
® XDoX: Cross-Document Summarizer. This project is a continuation of TIPSTER 3 contract, originally funded by DARPA since 1996, continued under ARDA funding, and since 2000 as a subcontract to GE R&D Center. We are developing automated multi-document summarization applications for intelligence analysts.
Information Retrieval. This project started in 1992 at
® Document Understanding Conference (DUC). This is an annual formal evaluation conference for text summarization. Sponsored by NIST and DARPA as part of the TIDES Program.
In Fall 2002 Iím teaching the following graduate course:
® CSI 660 Information Retrieval
o Thursday ó
o East Seminar Room, CETL
® T. Strzalkowski & S. Harabagiu (eds.) Advances in Open-Domain Question Answering. Kluwer Academic Publishers, 2003 (in preparation).
® Information Retrieval and Natural Language Processing, with E. Tzukermann, J. Klavans, in R. Mitkov (ed.), Handbook of Computational Linguistics, Oxford University Press, 2002.
Dialogue Game: Designing Task-Oriented Spontaneous Dialogue System for
Automated Call Centers.
Invited presentation at 3rd International Workshop on Human-Computer
® Natural Language Information Retrieval: Progress Report, with J. Perez-Carballo, Information Processing & Management, vol. 36, no. 1, pp. 155-178. 2000.
® PartsID: A Dialogue-Based System for Finding Parts for Medical Systems, with A. Bagga, and B. Wise, in Proceedings of 6th Applied Natural Language Conference (ANLP-2000), Seattle, WA, May, 2000
® Towards the Next Generation Information Retrieval, in Proceedings of the RIAO-2000, 6th International Conference on Intelligent Multimedia, Information Retrieval Systems and Management, Paris, April, 2000.
® Natural Language Information Retrieval. Kluwer Academic Publishers, 1999.
® Robust Practical Text Summarization, with G. Stein, J. Wang, B. Wise, in Advances in Automatic Text Summarization, MIT Press, 1999.
Robust, Lightweight Topic Tracking System, with G. Stein and G.G. Wise, in Proceedings of DARPA
Broadcast News Workshop,
Query Expansion in Information Retrieval, with J. Wang and B. Wise, in Proceedings of ColingóACL'98,
® A Robust, Practical Text Summarization, with J. Wang, and B. Wise, in Proceedings of AAAI Spring Symposium, Stanford University, 1998.
® Robust Text Processing in Automated Information Retrieval, in K. Sparck-Jones and P. Willet (eds.) Readings in Information Retrieval, Morgan Kaufman Publishers, pp. 317-322, 1997.
® A Natural Language Correction Model for Continuous Speech Recognition, with R. Brandow, in Proceedings of 5th Workshop on Very Large Corpora (WVVLC-5), Beijing-Hong Kong, 1997.
® Evaluation of TTP parser: A Revised Report, with P. Scheyen in H. Bunt & M. Tomita (eds.) Recent Advances in Parsing Technology, Kluwer Academic Publishers, pp. 201-220, 1996.
® Natural Language Information Retrieval, in Information Processing Management. vol. 31, no. 3, pp. 397-417. 1995.
Self-Learning Universal Concept Spotter, with J. Wang, in Proceedings of Coling-96,
® Reversible Grammar in Natural Language Processing, in Kluwer Academic Publishers, 1994
Fast and Robust Parser for Natural Language, in 14th International Conference on Computational
Logic Grammars For Natural Language Parsing and
Generation, in Computational
Intelligence, pp. 145-171. National Research Council of
inversion of logic grammars for generation, with P. Peng in 28th Annual
Meeting of the ACL,
® Non-Singular Concepts in Natural Language Discourse, with N. Cercone in Computational Linguistics, MIT Press, pp. 171-187, 1989.
® A Framework for Computing Extra-Sentential References, with N. Cercone in Computational Intelligence, 2(4), National Research Council of Canada, pp. 159-179, 1986.
of Natural Language into Logical Formulas, with L. Bolc in 9th International Conference on
Computational Linguistics (COLING),