KDD
2008
ACM
14 years 4 months ago
2008
ACM
We introduce the problem of query decomposition, where we are given a query and a document retrieval system, and we want to produce a small set of queries whose union of resulting...
ESORICS
2009
Springer
14 years 5 months ago
2009
Springer
Abstract. Interest in role-based access control has generated considerable research activity in recent years. A number of interesting problems related to the well known set cover p...