12336 search results - page 418 / 2468 » Active Information Retrieval |
158
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ALT
2010
Springer
15 years 8 months ago
2010
Springer
We explore a general Bayesian active learning setting, in which the learner can ask arbitrary yes/no questions. We derive upper and lower bounds on the expected number of queries r...
168
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SIGIR
2003
ACM
16 years 2 days ago
2003
ACM
Information retrieval system evaluation is complicated by the need for manually assessed relevance judgments. Large manually-built directories on the web open the door to new eval...
159
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ECIR
2008
Springer
15 years 8 months ago
2008
Springer
Abstract. We show that several previously proposed passage-based document ranking principles, along with some new ones, can be derived from the same probabilistic model. We use lan...
204
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ECIR
2006
Springer
15 years 8 months ago
2006
Springer
Keyword-based queries are an important means to retrieve information from XML collections with unknown or complex schemas. Relevance Feedback integrates relevance information provi...
220
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ICRA
2008
IEEE
16 years 1 months ago
2008
IEEE
—This work deals with navigation of an omni-directional mobile robot with active caster wheels. Initially, the posture of the omni-directional mobile robot is calculated by using...