45 search results - page 7 / 9 » ISI Novelty Track System for TREC 2004 |
SIGIR
2008
ACM
13 years 7 months ago
2008
ACM
Evaluation measures act as objective functions to be optimized by information retrieval systems. Such objective functions must accurately reflect user requirements, particularly w...
TREC
2004
13 years 8 months ago
2004
While participating in the HARD track our first question was, what an IR-application should look like that takes into account preference meta-data from the user, without the need ...
MIR
2005
ACM
14 years 1 months ago
2005
ACM
Concept drifting is an important and challenging research issue in the field of machine learning. This paper mainly addresses the issue of semantic concept drifting in time series...
NAACL
2004
13 years 8 months ago
2004
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...
IJCNLP
2004
Springer
14 years 25 days ago
2004
Springer
The performance of Information Retrieval in the Question Answering system is not satisfactory from our experiences in TREC QA Track. In this article, we take a comparative study t...