25111 search results - page 303 / 5023 » Information Systems |
201
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ICDE
2005
IEEE
16 years 12 days ago
2005
IEEE
Current federated systems deploy cost-based query optimization mechanisms; i.e., the optimizer selects a global query plan with the lowest cost to execute. Thus, cost functions in...
172
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COLING
2000
15 years 8 months ago
2000
This paper describes an approach to using semantic rcprcsentations for learning information extraction (IE) rules by a type-oriented inductire logic programming (ILl)) system. NLP...
171
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RECSYS
2009
ACM
16 years 1 months ago
2009
ACM
Besides the rating information, an increasing number of modern recommender systems also allow the users to add personalized tags to the items. Such tagging information may provide...
198
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PLDI
2009
ACM
15 years 11 months ago
2009
ACM
Dynamic information flow policies, such as declassification, are essential for practically useful information flow control systems. However, most systems proposed to date that ...
173
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FLAIRS
2007
15 years 9 months ago
2007
We investigate the use of a morphological neural network to improve the performance of information retrieval systems. A morphological neural network is a neural network based on l...