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92
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TREC
2003
15 years 1 months ago
Approaches to Robust and Web Retrieval
: We describe our participation in the TREC 2003 Robust and Web tracks. For the Robust track, we experimented with the impact of stemming and feedback on the worst scoring topics. ...
Jaap Kamps, Christof Monz, Maarten de Rijke, B&oum...
72
Voted
IADIS
2004
15 years 1 months ago
Query-Based Indexing in Collaorative Search
The success of Web search is often limited by a variety of factors. Typical queries are vague and imprecise. At the same time, the Web is a dynamic and unmoderated collection and ...
Jill Freyne, Barry Smyth
SIGIR
2009
ACM
15 years 7 months ago
Web-derived resources for web information retrieval: from conceptual hierarchies to attribute hierarchies
A weakly-supervised extraction method identifies concepts within conceptual hierarchies, at the appropriate level of specificity (e.g., Bank vs. Institution), to which attribute...
Marius Pasca, Enrique Alfonseca
HICSS
2010
IEEE
200views Biometrics» more  HICSS 2010»
15 years 2 months ago
Instability of Relevance-Ranked Results Using Latent Semantic Indexing for Web Search
1 The latent semantic indexing (LSI) methodology for information retrieval applies the singular value decomposition to identify an eigensystem for a large matrix, in which cells re...
Houssain Kettani, Gregory B. Newby
118
Voted
CIKM
2008
Springer
15 years 2 months ago
Modeling hidden topics on document manifold
Topic modeling has been a key problem for document analysis. One of the canonical approaches for topic modeling is Probabilistic Latent Semantic Indexing, which maximizes the join...
Deng Cai, Qiaozhu Mei, Jiawei Han, Chengxiang Zhai