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FOCS
1998
IEEE
14 years 1 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
TLDI
2005
ACM
14 years 2 months ago
2005
ACM
Two different ways of defining ad-hoc polymorphic operations commonly occur in programming languages. With the first form polymorphic operations are defined inductively on the...
ICVS
2003
Springer
14 years 2 months ago
2003
Springer
This paper presents an extensible architectural model for general content-based analysis and indexing of video data which can be customised for a given problem domain. Video interp...
EACL
1989
ACL Anthology
13 years 10 months ago
1989
ACL Anthology
The structure of problem-solving discourse in the expert advising setting can be modeled by adding a layer of metaplans to a plan-based model of the task domain. Classes of metapl...
MPC
2010
Springer
14 years 1 months ago
2010
Springer
Abstract. It is natural to present subtyping for recursive types coinductively. However, Gapeyev, Levin and Pierce have noted that there is a problem with coinductive definitions ...