6618 search results - page 1279 / 1324 » Information and Communication Technologies for Development |
159
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CISS
2008
IEEE
2008
IEEE
A lower-bound on the number of rankings required in recommender systems using collaborativ filtering
16 years 22 days ago
— We consider the situation where users rank items from a given set, and each user ranks only a (small) subset of all items. We assume that users can be classified into C classe...
188
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AINA
2007
IEEE
16 years 19 days ago
2007
IEEE
The GridBASE framework for database-driven grid computing is presented. The design and a prototype implementation of the framework is discussed. Industry-strength database technol...
179
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ALPIT
2007
IEEE
16 years 19 days ago
2007
IEEE
While information retrieval (IR) and databases (DB) have been developed independently, there have been emerging requirements that both data management and efficient text retrieva...
147
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CIKM
2007
Springer
16 years 14 days ago
2007
Springer
As one of the most effective query expansion approaches, local feedback is able to automatically discover new query terms and improve retrieval accuracy for different retrieval ...
177
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GEOS
2007
Springer
16 years 13 days ago
2007
Springer
Spatio-temporal network is defined by a set of nodes, and a set of edges, where the properties of nodes and edges may vary over time. Such networks are encountered in a variety of...