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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...
VRML
1998
ACM
14 years 1 months ago
1998
ACM
Peloton is a sports simulator that uses the Virtual Reality Modeling Language (VRML) to create virtual environments for athletic training and competition. In particular, it create...
ICDT
2010
ACM
14 years 1 months ago
2010
ACM
Relational data exchange deals with translating a relational database instance over some source schema into a relational database instance over some target schema, according to a ...
COCO
1994
Springer
14 years 1 months ago
1994
Springer
A probabilistically checkable debate system (PCDS) for a language L consists of a probabilisticpolynomial-time veri er V and a debate between Player 1, who claims that the input x ...
ESA
1993
Springer
14 years 1 months ago
1993
Springer
A digraph is upward planar if it has a planar drawing such that all the edges are monotone with respect to the vertical direction. Testing upward planarity and constructing upward ...