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» Using Distance Estimates in Heuristic Search
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CIKM
2009
Springer
14 years 2 months ago
Fast shortest path distance estimation in large networks
In this paper we study approximate landmark-based methods for point-to-point distance estimation in very large networks. These methods involve selecting a subset of nodes as landm...
Michalis Potamias, Francesco Bonchi, Carlos Castil...
AAAI
2007
13 years 10 months ago
On the Value of Good Advice: The Complexity of A* Search with Accurate Heuristics
We study the behavior of the classical A∗ search algorithm when coupled with a heuristic that provides estimates, accurate to within a small multiplicative factor, of the distan...
Hang T. Dinh, Alexander Russell, Yuan Su
TSMC
2002
142views more  TSMC 2002»
13 years 7 months ago
Dynamics of local search heuristics for the traveling salesman problem
This paper experimentally investigates the dynamical behavior of a search process in a local heuristic search system for a combinatorial optimization problem. Or-opt heuristic algo...
Weiqi Li, Bahram Alidaee
IJCAI
2007
13 years 9 months ago
Using Learned Policies in Heuristic-Search Planning
Many current state-of-the-art planners rely on forward heuristic search. The success of such search typically depends on heuristic distance-to-the-goal estimates derived from the ...
Sung Wook Yoon, Alan Fern, Robert Givan
AIPS
2004
13 years 9 months ago
Heuristic Guidance Measures for Conformant Planning
Scaling conformant planning is a problem that has received much attention of late. Many planners solve the problem as a search in the space of belief states, and some heuristic gu...
Daniel Bryce, Subbarao Kambhampati