789 search results - page 105 / 158 » On Theory Revision with Queries |
120
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CORR
2010
Springer
14 years 10 months ago
2010
Springer
In this paper, we propose a stochastic model to describe how search service providers charge client companies based on users' queries for the keywords related to these compan...
117
Voted
PODS
2012
ACM
13 years 3 months ago
2012
ACM
Over the past several decades, the study of conjunctive queries has occupied a central place in the theory and practice of database systems. In recent years, conjunctive queries h...
129
Voted
ICDT
2012
ACM
13 years 3 months ago
2012
ACM
In a recent paper by Hellerstein [15], a tight relationship was conjectured between the number of strata of a Datalog¬ program and the number of “coordination stages” require...
111
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CCS
2007
ACM
15 years 7 months ago
2007
ACM
In this paper, we study the maintenance of role-based access control (RBAC) models in database environments using transitive closure relations. In particular, the algorithms that ...
119
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PODS
2007
ACM
16 years 26 days ago
2007
ACM
The generalized hypertree width GHW(H) of a hypergraph H is a measure of its cyclicity. Classes of conjunctive queries or constraint satisfaction problems whose associated hypergr...