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127
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WWW
2007
ACM
16 years 4 months ago
2007
ACM
Web sites are designed for graphical mode of interaction. Sighted users can "cut to the chase" and quickly identify relevant information in Web pages. On the contrary, i...
128
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WWW
2004
ACM
16 years 4 months ago
2004
ACM
The understanding of Semantic Web documents is built upon ontologies that define concepts and relationships of data. Hence, the correctness of ontologies is vital. Ontology reason...
131
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WWW
2003
ACM
16 years 4 months ago
2003
ACM
Continuous queries are queries for which responses given to users must be continuously updated, as the sources of interest get updated. Such queries occur, for instance, during on...
191
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WWW
2010
ACM
15 years 11 months ago
2010
ACM
Recommender systems are an important component of many websites. Two of the most popular approaches are based on matrix factorization (MF) and Markov chains (MC). MF methods learn...
145
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WWW
2010
ACM
15 years 11 months ago
2010
ACM
When online ads are shown together, they compete for user attention and conversions, imposing negative externalities on each other. While the competition for user attention in spo...