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COCO
2007
Springer
114views Algorithms» more  COCO 2007»
15 years 10 months ago
Directed Planar Reachability is in Unambiguous Log-Space
We make progress in understanding the complexity of the graph reachability problem in the context of unambiguous logarithmic space computation; a restricted form of nondeterminism....
Chris Bourke, Raghunath Tewari, N. V. Vinodchandra...
EVOW
2007
Springer
15 years 10 months ago
Exact/Heuristic Hybrids Using rVNS and Hyperheuristics for Workforce Scheduling
In this paper we study a complex real-world workforce scheduling problem. We propose a method of splitting the problem into smaller parts and solving each part using exhaustive sea...
Stephen Remde, Peter I. Cowling, Keshav P. Dahal, ...
AGP
1999
IEEE
15 years 8 months ago
ACI1 constraints
Disunification is the problem of deciding satisfiability of a system of equations and disequations with respect to a given equational theory. In this paper we study the disunifica...
Agostino Dovier, Carla Piazza, Enrico Pontelli, Gi...
SEBD
2007
148views Database» more  SEBD 2007»
15 years 5 months ago
Containment of Conjunctive Object Meta-Queries
We consider the problem of query containment over an object data model derived from F-logic. F-logic has generated considerable interest commercially, in the academia, and within ...
Andrea Calì, Michael Kifer
CORR
2006
Springer
148views Education» more  CORR 2006»
15 years 4 months ago
Budget Optimization in Search-Based Advertising Auctions
Internet search companies sell advertisement slots based on users' search queries via an auction. While there has been previous work on the auction process and its game-theor...
Jon Feldman, S. Muthukrishnan, Martin Pál, ...