Sciweavers

138 search results - page 4 / 28
» Hardness of fully dense problems
Sort
View
SIGMOD
2009
ACM
214views Database» more  SIGMOD 2009»
14 years 8 months ago
DDE: from dewey to a fully dynamic XML labeling scheme
Labeling schemes lie at the core of query processing for many XML database management systems. Designing labeling schemes for dynamic XML documents is an important problem that ha...
Liang Xu, Tok Wang Ling, Huayu Wu, Zhifeng Bao
STACS
2005
Springer
14 years 1 months ago
Solving Medium-Density Subset Sum Problems in Expected Polynomial Time
The subset sum problem (SSP) (given n numbers and a target bound B, find a subset of the numbers summing to B), is one of the classical NP-hard problems. The hardness of SSP vari...
Abraham Flaxman, Bartosz Przydatek
FOCS
2007
IEEE
14 years 2 months ago
On the Hardness and Smoothed Complexity of Quasi-Concave Minimization
In this paper, we resolve the smoothed and approximative complexity of low-rank quasi-concave minimization, providing both upper and lower bounds. As an upper bound, we provide th...
Jonathan A. Kelner, Evdokia Nikolova
IJSM
2007
103views more  IJSM 2007»
13 years 7 months ago
Posture Invariant Correspondence of Incomplete Triangular Manifolds
We present an approach to find dense point-to-point correspondences between two deformed surfaces corresponding to different postures of the same nonrigid object in a fully autom...
Stefanie Wuhrer, Chang Shu, Prosenjit Bose, Zouhou...
CVPR
2007
IEEE
14 years 10 months ago
Toward Flexible 3D Modeling using a Catadioptric Camera
Fully automatic 3D modeling from a catadioptric image sequence has rarely been addressed until now, although this is a long-standing problem for perspective images. All previous c...
Maxime Lhuillier