4397 search results - page 49 / 880 » Relational Algebra Operations |
97
Voted
CORR
2010
Springer
15 years 21 days ago
2010
Springer
Type-flaw attacks and multi-protocol attacks on security protocols have been frequently reported in the literature. Heather et al. and Guttman et al. proved that these could be pr...
117
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IS
2007
15 years 15 days ago
2007
Preference queries are relational algebra or SQL queries that contain occurrences of the winnow operator (find the most preferred tuples in a given relation). Such queries are pa...
77
Voted
DLOG
2008
15 years 2 months ago
2008
Abstract. We show that subsumption problems in EL and related description logics can be expressed as uniform word problems in classes of semilattices with monotone operators. We us...
93
Voted
AML
2006
15 years 20 days ago
2006
Simpson introduced the lattice P of 0 1 classes under Medvedev reducibility. Questions regarding completeness in P are related to questions about measure and randomness. We presen...
110
Voted
EDBTW
2006
Springer
15 years 2 months ago
2006
Springer
Abstract. Relational algebra has been a crucial foundation for relational database systems, and has played a large role in enabling their success. A corresponding XML algebra for X...