1247 search results - page 128 / 250 » Predicting query performance on the web |
167
Voted
SIGIR
2003
ACM
15 years 10 months ago
2003
ACM
We propose a Bayesian extension to the ad-hoc Language Model. Many smoothed estimators used for the multinomial query model in ad-hoc Language Models (including Laplace and Bayes-...
151
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CIKM
2007
Springer
15 years 11 months ago
2007
Springer
Pseudo-relevance feedback, or query expansion, has been shown to improve retrieval performance in the adhoc retrieval task. In such a scenario, a few top-ranked documents are assu...
193
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AAAI
2006
15 years 6 months ago
2006
OntoSearch, a full-text search engine that exploits ontological knowledge for document retrieval, is presented in this paper. Different from other ontology based search engines, O...
263
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SIGMOD
2008
ACM
16 years 5 months ago
2008
ACM
Many scientific, financial, data mining and sensor network applications need to work with continuous, rather than discrete data e.g., temperature as a function of location, or sto...
173
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WWW
2008
ACM
15 years 5 months ago
2008
ACM
We propose a novel Partition Path-Based (PPB) grouping strategy to store compressed XML data in a stream of blocks. In addition, we employ a minimal indexing scheme called Block S...