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SIGIR
2009
ACM
14 years 2 months ago
Query dependent pseudo-relevance feedback based on wikipedia
Pseudo-relevance feedback (PRF) via query-expansion has been proven to be effective in many information retrieval (IR) tasks. In most existing work, the top-ranked documents from...
Yang Xu, Gareth J. F. Jones, Bin Wang
ISDA
2009
IEEE
14 years 2 months ago
A Combined Query Expansion Technique for Retrieving Opinions from Blogs
In this paper, we discuss the the role of the retrieval component in an TREC style opinion question answering system. Since blog retrieval differs from traditional ad-hoc document...
Saeedeh Momtazi, Stefan Kazalski, Dietrich Klakow
EDBT
2008
ACM
136views Database» more  EDBT 2008»
13 years 9 months ago
Dealing with P2P semantic heterogeneity through query expansion and interpretation
In P2P systems where query initiators and information providers do not necessarily share the same ontology, semantic interoperability generally relies on ontology matching or sche...
Anthony Ventresque, Sylvie Cazalens, Philippe Lama...
ECIR
2011
Springer
12 years 11 months ago
Combining Global and Local Semantic Contexts for Improving Biomedical Information Retrieval
In the context of biomedical information retrieval (IR), this paper explores the relationship between the document’s global context and the query’s local context in an attempt ...
Duy Dinh, Lynda Tamine
SIGIR
1998
ACM
13 years 11 months ago
Improving Automatic Query Expansion
Most casual users of IR systems type short queries. Recent research has shown that adding new words to these queries via adhoc feedback improves the retrieval e ectiveness of such ...
Mandar Mitra, Amit Singhal, Chris Buckley