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» Connections between Relation Algebras and Cylindric Algebras
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APAL
2008
87views more  APAL 2008»
14 years 11 months ago
Characterising nested database dependencies by fragments of propositional logic
We extend the earlier results on the equivalence between the Boolean and the multivalued dependencies in relational databases and fragments of the Boolean propositional logic. It ...
Sven Hartmann, Sebastian Link
ASIAN
1998
Springer
118views Algorithms» more  ASIAN 1998»
15 years 3 months ago
Bisimulation Lattice of Chi Processes
Chi calculus was proposed as a process algebra that has a uniform treatment of names. The paper carries out a systematic study of bisimilarities for chi processes. The notion of L-...
Yuxi Fu
JC
2000
138views more  JC 2000»
14 years 11 months ago
Multivariate Polynomials, Duality, and Structured Matrices
We rst review thebasic properties of the well knownclasses of Toeplitz, Hankel, Vandermonde, and other related structured matrices and reexamine their correlation to operations wi...
Bernard Mourrain, Victor Y. Pan
WWW
2004
ACM
15 years 12 months ago
Propagation of trust and distrust
A (directed) network of people connected by ratings or trust scores, and a model for propagating those trust scores, is a fundamental building block in many of today's most s...
Ramanathan V. Guha, Ravi Kumar, Prabhakar Raghavan...
FOCS
2009
IEEE
15 years 6 months ago
Faster Generation of Random Spanning Trees
In this paper, we set forth a new algorithm for generating approximately uniformly random spanning trees in undirected graphs. We show how to sample from a distribution that is wi...
Jonathan A. Kelner, Aleksander Madry