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JCT
1998
122views more  JCT 1998»
14 years 11 months ago
Counting 1-Factors in Regular Bipartite Graphs
We show that any k-regular bipartite graph with 2n vertices has at least ((k−1)k−1 kk−2 )n perfect matchings (1-factors). Equivalently, this is a lower bound on the permanent...
Alexander Schrijver
ENDM
2010
103views more  ENDM 2010»
14 years 9 months ago
Structural Analysis for Differential-Algebraic Systems: Complexity, Formulation and Facets
In this paper we consider the structural analysis problem for differential-algebraic systems with conditional equations. This consists, given a conditional differential algebraic ...
Mathieu Lacroix, Ali Ridha Mahjoub, Sébasti...
PVLDB
2008
130views more  PVLDB 2008»
14 years 11 months ago
Analyzing and revising data integration schemas to improve their matchability
Data integration systems often provide a uniform query interface, called a mediated schema, to a multitude of data sources. To answer user queries, such systems employ a set of se...
Xiaoyong Chai, Mayssam Sayyadian, AnHai Doan, Arno...
DGCI
2009
Springer
15 years 3 months ago
Optimal Partial Tiling of Manhattan Polyominoes
Finding an efficient optimal partial tiling algorithm is still an open problem. We have worked on a special case, the tiling of Manhattan polyominoes with dominoes, for which we gi...
Olivier Bodini, Jérémie Lumbroso
ICCV
2005
IEEE
16 years 1 months ago
Improved Sub-pixel Stereo Correspondences through Symmetric Refinement
Most dense stereo correspondence algorithms start by establishing discrete pixel matches and later refine these matches to sub-pixel precision. Traditional sub-pixel refinement me...
Diego Nehab, Szymon Rusinkiewicz, James Davis