136 search results - page 20 / 28 » AnswerFinder at TREC 2004 |
SIGIR
2004
ACM
15 years 3 months ago
2004
ACM
Previous research on cluster-based retrieval has been inconclusive as to whether it does bring improved retrieval effectiveness over document-based retrieval. Recent developments ...
SIGIR
2004
ACM
15 years 3 months ago
2004
ACM
List question answering (QA) offers a unique challenge in effectively and efficiently locating a complete set of distinct answers from huge corpora or the Web. In TREC-12, the med...
CIKM
2004
Springer
15 years 3 months ago
2004
Springer
Query expansion is a well-known technique that has been shown to improve average retrieval performance. This technique has not been used in many operational systems because of the...
SPIRE
2004
Springer
15 years 3 months ago
2004
Springer
The prediction of query performance is an interesting and important issue in Information Retrieval (IR). Current predictors involve the use of relevance scores, which are time-cons...
EMNLP
2009
14 years 7 months ago
2009
Automated mining of novel documents or sentences from chronologically ordered documents or sentences is an open challenge in text mining. In this paper, we describe the preprocess...