Paper Info
Title
Evaluating topic difficulties from the viewpoint of query term expansion
Abstract
Query term expansion is an important technique for achieving higher retrieval performance. However, since many factors affects the quality of this technique, it is difficult to evaluate this technique in isolation. Feature quantities that characterize the quality of the initial query are defined in this study for evaluating topic difficulties from the viewpoint of query term expansion. I also briefly review the result of the NTCIR-5 query term expansion subtask that uses these quantities for evaluating the effectiveness of the query term expansion techniques. I also describe detailed analysis results on the effect of query term expansion based on topic-by-topic analysis.
Year
DOI
Venue
2006
10.1007/11880592_30
AIRS
Keywords
Field
DocType
query term expansion,initial query,higher retrieval performance,detailed analysis result,topic difficulty,query term expansion technique,feature quantity,topic-by-topic analysis,ntcir-5 query term expansion,important technique
Data mining,Database query,Relevance feedback,Query expansion,Information retrieval,Computer science,Ranking (information retrieval)
Conference
Volume
ISSN
ISBN
4182
0302-9743
3-540-45780-1
Citations 
PageRank 
References 
0
0.34
14
Authors
1
Name
Order
Citations
PageRank
Masaharu Yoshioka136841.40