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IJCAI
2007
14 years 26 days ago
Nogood Recording from Restarts
Abstract. In this paper, nogood recording is investigated for CSP within the randomization and restart framework. Our goal is to avoid the same situations to occur from one run to ...
Christophe Lecoutre, Lakhdar Sais, Sébastie...
ISMIS
2000
Springer
14 years 3 months ago
Top-Down Query Processing in First Order Deductive Databases under the DWFS
A top-down query processing method for first order deductive databases under the disjunctive well-founded semantics (DWFS) is presented. The method is based upon a characterisation...
C. A. Johnson
VLDB
1999
ACM
151views Database» more  VLDB 1999»
14 years 3 months ago
Cache Conscious Indexing for Decision-Support in Main Memory
As random access memory gets cheaper, it becomes increasingly affordable to build computers with large main memories. We consider decision support workloads within the context of...
Jun Rao, Kenneth A. Ross
ICTAI
2003
IEEE
14 years 4 months ago
Eliminating Redundancies in SAT Search Trees
Conflict analysis is a powerful paradigm of backtrack search algorithms, in particular for solving satisfiability problems arising from practical applications. Accordingly, most...
Richard Ostrowski, Bertrand Mazure, Lakhdar Sais, ...
CG
2004
Springer
14 years 4 months ago
The Relative History Heuristic
In this paper a new method is described for move ordering, called the relative history heuristic. It is a combination of the history heuristic and the butterfly heuristic. Instead...
Mark H. M. Winands, Erik C. D. van der Werf, H. Ja...
CPAIOR
2005
Springer
14 years 5 months ago
Nondeterministic Control for Hybrid Search
Hybrid algorithms combining local and systematic search often use nondeterminism in fundamentally different ways. They may differ in the strategy to explore the search tree and/o...
Pascal Van Hentenryck, Laurent Michel
ACG
2006
Springer
14 years 5 months ago
Automatic Generation of Search Engines
A plethora of enhancements are available to be used together with the αβ search algorithm. There are so many, that their selection and implementation is a non-trivial task, even ...
Markian Hlynka, Jonathan Schaeffer
CPAIOR
2007
Springer
14 years 5 months ago
A Position-Based Propagator for the Open-Shop Problem
The Open-Shop Problem is a hard problem that can be solved using Constraint Programming or Operation Research methods. Existing techniques are efficient at reducing the search tree...
Jean-Noël Monette, Yves Deville, Pierre Dupon...
ICRA
2007
IEEE
144views Robotics» more  ICRA 2007»
14 years 5 months ago
Particle RRT for Path Planning with Uncertainty
— This paper describes a new extension to the Rapidly–exploring Random Tree (RRT) path planning algorithm. The Particle RRT algorithm explicitly considers uncertainty in its do...
Nik A. Melchior, Reid G. Simmons
ICRA
2008
IEEE
135views Robotics» more  ICRA 2008»
14 years 5 months ago
Path and trajectory diversity: Theory and algorithms
— We present heuristic algorithms for pruning large sets of candidate paths or trajectories down to smaller subsets that maintain desirable characteristics in terms of overall re...
Michael S. Branicky, Ross A. Knepper, James J. Kuf...