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LPNMR
2007
Springer
14 years 1 months ago
On the Effectiveness of Looking Ahead in Search for Answer Sets
Abstract. Most complete answer set solvers are based on DPLL. One of the constraint propagation methods is the so-called lookahead, which has been somewhat controversial, due to it...
Guohua Liu, Jia-Huai You
HICSS
2003
IEEE
85views Biometrics» more  HICSS 2003»
14 years 1 months ago
Designs for Ramp-Constrained Day-Ahead Auctions
— Some electric power markets allow bidders to specify constraints on ramp rates for increasing or decreasing power production. We show in a small example that a bidder could use...
Shmuel S. Oren, Andrew M. Ross
VLDB
1998
ACM
132views Database» more  VLDB 1998»
13 years 12 months ago
Buffering and Read-Ahead Strategies for External Mergesort
The elapsed time for external mergesort is normally dominated by I/O time. This paper is focused on reducing I/O time during the merge phase. Three new buffering and readahead str...
Weiye Zhang, Per-Åke Larson
SOFSEM
2012
Springer
12 years 3 months ago
Visibly Pushdown Transducers with Look-Ahead
Visibly Pushdown Transducers (VPT) form a subclass of pushdown transducers. In this paper, we investigate the extension of VPT with visibly pushdown look-ahead (VPTla). Their trans...
Emmanuel Filiot, Frédéric Servais
AI
2010
Springer
13 years 7 months ago
When is it better not to look ahead?
In situations where one needs to make a sequence of decisions, it is often believed that looking ahead will help produce better decisions. However, it was shown 30 years ago that ...
Dana S. Nau, Mitja Lustrek, Austin Parker, Ivan Br...