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» Score Distributions in Information Retrieval
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94
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SIGIR
2011
ACM
14 years 1 months ago
When documents are very long, BM25 fails!
We reveal that the Okapi BM25 retrieval function tends to overly penalize very long documents. To address this problem, we present a simple yet effective extension of BM25, namel...
Yuanhua Lv, ChengXiang Zhai
ACL
2006
15 years 15 days ago
Examining the Content Load of Part of Speech Blocks for Information Retrieval
We investigate the connection between part of speech (POS) distribution and content in language. We define POS blocks to be groups of parts of speech. We hypothesise that there ex...
Christina Lioma, Iadh Ounis
ECIR
2009
Springer
15 years 8 months ago
Risk-Aware Information Retrieval
Probabilistic retrieval models usually rank documents based on a scalar quantity. However, such models lack any estimate for the uncertainty associated with a document’s rank. Fu...
Jianhan Zhu, Jun Wang, Michael J. Taylor, Ingemar ...
IADIS
2003
15 years 14 days ago
Information Retrieval in Digital Libraries Using XML Mediation
Digital libraries are more and more available on the web. However, retrieving information in these libraries is not easy because of sources heterogeneity and distribution. Thus, w...
Laila Benhlima, Dalila Chiadmi
80
Voted
DEXAW
2007
IEEE
116views Database» more  DEXAW 2007»
15 years 5 months ago
Regression Relevance Models for Data Fusion
Data fusion has been investigated by many researchers in the information retrieval community and has become an effective technique for improving retrieval effectiveness. In this p...
Shengli Wu, Yaxin Bi, Sally I. McClean