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AAIM
2006
Springer
110views Algorithms» more  AAIM 2006»
16 years 1 months ago
Non-metric Multicommodity and Multilevel Facility Location
Abstract. We give logarithmic approximation algorithms for the nonmetric uncapacitated multicommodity and multilevel facility location problems. The former algorithms are optimal u...
Rudolf Fleischer, Jian Li, Shijun Tian, Hong Zhu
PODS
2011
ACM
220views Database» more  PODS 2011»
14 years 10 months ago
Maximizing conjunctive views in deletion propagation
In deletion propagation, tuples from the database are deleted in order to reflect the deletion of a tuple from the view. Such an operation may result in the (often necessary) del...
Benny Kimelfeld, Jan Vondrák, Ryan Williams
ECSQARU
2009
Springer
15 years 4 months ago
Soft Constraints Processing over Divisible Residuated Lattices
We claim that divisible residuated lattices (DRLs) can act as a unifying evaluation framework for soft constraint satisfaction problems (soft CSPs). DRLs form the algebraic semanti...
Simone Bova
ICRA
2009
IEEE
100views Robotics» more  ICRA 2009»
15 years 4 months ago
Multi-robot plan adaptation by constrained minimal distortion feature mapping
We propose a novel method for multi-robot plan adaptation which can be used for adapting existing spatial plans of robotic teams to new environments or imitating collaborative spat...
Bálint Takács, Yiannis Demiris
TWC
2011
254views more  TWC 2011»
15 years 1 months ago
Blind Channel Estimation for STBC Systems Using Higher-Order Statistics
—This paper describes a new blind channel estimation algorithm for Space-Time Block Coded (STBC) systems. The proposed method exploits the statistical independence of sources bef...
Vincent Choqueuse, Ali Mansour, Gilles Burel, Ludo...