505 search results - page 37 / 101 » Cluster-based retrieval using language models |
138
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SPATIALCOGNITION
2004
Springer
15 years 7 months ago
2004
Springer
Abstract. In this paper we apply a formal ontological framework in order to deconstruct two prominent approaches to navigation from cognitive robotics, the Spatial Semantic Hierarc...
109
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SIGIR
1993
ACM
15 years 6 months ago
1993
ACM
According to the logical model of Information Retrieval (IR), the task of IR can be described as the extraction, from a given document base, of those documents d that, given a que...
162
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CIKM
2008
Springer
15 years 3 months ago
2008
Springer
We propose a novel conception language for exploring the results retrieved by several internet search services (like search engines) that cluster retrieved documents. The goal is ...
118
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SIGIR
2004
ACM
15 years 7 months ago
2004
ACM
Pseudo feedback is a commonly used technique to improve information retrieval performance. It assumes a few top-ranked documents to be relevant, and learns from them to improve th...
137
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IJCNLP
2004
Springer
15 years 7 months ago
2004
Springer
In this paper, a series of window-based methods is proposed for information retrieval. Compared with traditional tf-idf model, our approaches are based on two new key notions. The ...