CIKM
2011
Springer
12 years 11 months ago
2011
Springer
A key component of BM25 contributing to its success is its sub-linear term frequency (TF) normalization formula. The scale and shape of this TF normalization component is controll...
ECIR
2011
Springer
13 years 2 months ago
2011
Springer
Abstract. As retrieval systems become more complex, learning to rank approaches are being developed to automatically tune their parameters. Using online learning to rank approaches...
ICMCS
2009
IEEE
13 years 9 months ago
2009
IEEE
Effective texture feature is an essential component in any content based image retrieval system. In the past, spectral features, like Gabor and wavelet, have shown superior retrie...
ECIR
2009
Springer
13 years 9 months ago
2009
Springer
Query expansion is an effective technique in improving the retrieval performance for ad-hoc retrieval. However, query expansion can also fail, leading to a degradation of the retri...
SIGIR
2002
ACM
13 years 11 months ago
2002
ACM
tion Abstract ChengXiang Zhai (Advisor: John Lafferty) Language Technologies Institute School of Computer Science Carnegie Mellon University With the dramatic increase in online in...
PR
2002
13 years 11 months ago
2002
A statistical correlation model for image retrieval is proposed. This model captures the semantic relationships among images in a database from simple statistics of userprovided r...
COLING
2002
13 years 11 months ago
2002
It is commonly believed that word segmentation accuracy is monotonically related to retrieval performance in Chinese information retrieval. In this paper we show that, for Chinese...
ASC
2004
13 years 11 months ago
2004
The retrieval performance of an information retrieval system usually increases when it uses the relationships among the terms contained in a given document collection. However, th...
PRL
2006
13 years 11 months ago
2006
Information retrieval which aims to provide people with easy access to all kinds of information is now becoming more and more emphasized. However, most approaches to information r...
TREC
2007
14 years 18 days ago
2007
Our Genomics experiments in this year mainly focus on improving the passage retrieval performance in the biomedical domain. We address this problem by constructing different inde...