1605 search results - page 157 / 321 » Search result diversity for informational queries |
180
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CIKM
2004
Springer
15 years 12 months ago
2004
Springer
It is crucial in many information systems to organize short text segments, such as keywords in documents and queries from users, into a well-formed topic hierarchy. In this paper,...
183
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BMCBI
2007
15 years 6 months ago
2007
Background: Recent advances in Web and information technologies with the increasing decentralization of organizational structures have resulted in massive amounts of information r...
139
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AIPS
1998
15 years 7 months ago
1998
We present the application of the Planning by Rewriting PbR framework to query planning in distributed and heterogeneous environments. PbR is a new paradigm for e cient high-quali...
224
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MM
2010
ACM
15 years 6 months ago
2010
ACM
In this technical demonstration we show an integrated web system for video search and annotation based on ontologies. The system is composed by three components: the Orione1 ontol...
254
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SIGIR
2012
ACM
13 years 8 months ago
2012
ACM
Positional ranking functions, widely used in web search engines, improve result quality by exploiting the positions of the query terms within documents. However, it is well known ...