8298 search results - page 270 / 1660 » Geografisches Information Retrieval |
170
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CIKM
2009
Springer
15 years 11 months ago
2009
Springer
We systematically compare five representative state-of-theart methods for estimating query language models with pseudo feedback in ad hoc information retrieval, including two var...
182
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CORR
2008
Springer
15 years 5 months ago
2008
Springer
The problem of representing text documents within an Information Retrieval system is formulated as an analogy to the problem of representing the quantum states of a physical syste...
241
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ECIR
2011
Springer
14 years 10 months ago
2011
Springer
Abstract. Quantum theory (QT) has recently been employed to advance the theory of information retrieval (IR). A typical method, namely the Quantum Probability Ranking Principle (QP...
176
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SIGIR
2011
ACM
14 years 9 months ago
2011
ACM
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...
175
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TREC
2000
15 years 8 months ago
2000
This report describes the English-Chinese crosslanguage retrieval experiments at Berkeley for TREC-9 Cross-Language Information Retrieval track. We present a simple and effective ...