5154 search results - page 712 / 1031 » Modelling online education |
172
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WWW
2009
ACM
16 years 7 months ago
2009
ACM
This paper proposes an efficient relevance feedback based interactive model for keyword generation in sponsored search advertising. We formulate the ranking of relevant terms as a...
199
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WWW
2008
ACM
16 years 7 months ago
2008
ACM
We model budget-constrained keyword bidding in sponsored search auctions as a stochastic multiple-choice knapsack problem (S-MCKP) and design an algorithm to solve S-MCKP and the ...
183
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WWW
2008
ACM
16 years 7 months ago
2008
ACM
In this paper, we discuss challenges and provide solutions for capturing and maintaining accurate models of user profiles using semantic web technologies, by aggregating and shari...
172
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
Search engines provide a small window to the vast repository of data they index and against which they search. They try their best to return the documents that are of relevance to...
169
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
In a new model for answer retrieval, document collections are distilled offline into large repositories of facts. Each fact constitutes a potential direct answer to questions seek...