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SIGIR
2002
ACM
13 years 9 months ago
Risk minimization and language modeling in text retrieval dissertation abstract
tion Abstract ChengXiang Zhai (Advisor: John Lafferty) Language Technologies Institute School of Computer Science Carnegie Mellon University With the dramatic increase in online in...
ChengXiang Zhai
CLEF
2008
Springer
13 years 12 months ago
Ontology-Based Query Construction for GeoCLEF
This paper describes our participation in GeoCLEF. Being different from the traditional information retrieval, we focus more on the query expansion instead of document ranking. We ...
Rui Wang 0005, Günter Neumann
NAACL
2004
13 years 11 months ago
Answering Definition Questions Using Multiple Knowledge Sources
Definition questions represent a largely unexplored area of question answering--they are different from factoid questions in that the goal is to return as many relevant "nugg...
Wesley Hildebrandt, Boris Katz, Jimmy J. Lin
TREC
2004
13 years 11 months ago
Overview of the TREC 2004 Terabyte Track
The Terabyte Track explores how adhoc retrieval and evaluation techniques can scale to terabyte-sized collections. For TREC 2004, our first year, 50 new adhoc topics were created ...
Charles L. A. Clarke, Nick Craswell, Ian Soboroff
CLEF
2009
Springer
13 years 11 months ago
Using Semantic Relatedness and Word Sense Disambiguation for (CL)IR
In this paper we report the experiments for the CLEF 2009 Robust-WSD task, both for the monolingual (English) and the bilingual (Spanish to English) subtasks. Our main experimenta...
Eneko Agirre, Arantxa Otegi, Hugo Zaragoza