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» Additive Pattern Database Heuristics
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AIPS
2008
13 years 8 months ago
Structural Patterns Heuristics via Fork Decomposition
We consider a generalization of the PDB homomorphism abstractions to what is called "structural patterns". The bais in abstracting the problem in hand into provably trac...
Michael Katz, Carmel Domshlak
ECAI
2008
Springer
13 years 8 months ago
Multi-valued Pattern Databases
Pattern Databases were a major breakthrough in heuristic search by solving hard combinatorial problems various orders of magnitude faster than state-of-the-art techniques at that ...
Carlos Linares López
AIPS
2008
13 years 8 months ago
The Compression Power of Symbolic Pattern Databases
The heuristics used for planning and search often take the pattern databases generated from abstracted versions of the given state space. Pattern databases are typically stored p ...
Marcel Ball, Robert C. Holte
JAIR
2007
107views more  JAIR 2007»
13 years 6 months ago
Compressed Pattern Databases
A pattern database (PDB) is a heuristic function implemented as a lookup table that stores the lengths of optimal solutions for subproblem instances. Standard PDBs have a distinct...
Ariel Felner, Richard E. Korf, Ram Meshulam, Rober...
SARA
2005
Springer
13 years 11 months ago
Solving the 24 Puzzle with Instance Dependent Pattern Databases
A pattern database (PDB) is a heuristic function in a form of a lookup table which stores the cost of optimal solutions for instances of subproblems. bproblems are generated by abs...
Ariel Felner, Amir Adler