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» Incorporating Non-Relevance Information in the Estimation of...
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SIGIR
2005
ACM
13 years 11 months ago
Relevance information: a loss of entropy but a gain for IDF?
When investigating alternative estimates for term discriminativeness, we discovered that relevance information and idf are much closer related than formulated in classical literat...
Arjen P. de Vries, Thomas Rölleke
SIGIR
2006
ACM
14 years 2 hour ago
Lightening the load of document smoothing for better language modeling retrieval
We hypothesized that language modeling retrieval would improve if we reduced the need for document smoothing to provide an inverse document frequency (IDF) like effect. We create...
Mark D. Smucker, James Allan
SIGIR
2010
ACM
13 years 10 months ago
Estimation of statistical translation models based on mutual information for ad hoc information retrieval
As a principled approach to capturing semantic relations of words in information retrieval, statistical translation models have been shown to outperform simple document language m...
Maryam Karimzadehgan, ChengXiang Zhai
SIGIR
2003
ACM
13 years 11 months ago
Exploiting query history for document ranking in interactive information retrieval
In this poster,we incorporate user query history, as context information, to improve the retrieval performance in interactive retrieval. Experiments using the TREC data show that ...
Xuehua Shen, ChengXiang Zhai
CJ
2010
131views more  CJ 2010»
13 years 3 months ago
Probabilistic Approaches to Estimating the Quality of Information in Military Sensor Networks
an be used to abstract away from the physical reality by describing it as components that exist in discrete states with probabilistically invoked actions that change the state. The...
Duncan Gillies, David Thornley, Chatschik Bisdikia...