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IANDC
2011
129views more  IANDC 2011»
15 years 1 months ago
Rigid tree automata and applications
We introduce the class of Rigid Tree Automata (RTA), an extension of standard bottom-up automata on ranked trees with distinguished states called rigid. Rigid states define a res...
Florent Jacquemard, Francis Klay, Camille Vacher
PODS
2011
ACM
201views Database» more  PODS 2011»
14 years 9 months ago
Data exchange beyond complete data
In the traditional data exchange setting, source instances are restricted to be complete in the sense that every fact is either true or false in these instances. Although natural ...
Marcelo Arenas, Jorge Pérez, Juan L. Reutte...
WADS
2009
Springer
232views Algorithms» more  WADS 2009»
16 years 1 months ago
On Making Directed Graphs Transitive
We present the first thorough theoretical analysis of the Transitivity Editing problem on digraphs. Herein, the task is to perform a minimum number of arc insertions or deletions ...
Mathias Weller, Christian Komusiewicz, Rolf Nieder...
CPM
2009
Springer
122views Combinatorics» more  CPM 2009»
16 years 1 months ago
Haplotype Inference Constrained by Plausible Haplotype Data
The haplotype inference problem (HIP) asks to find a set of haplotypes which resolve a given set of genotypes. This problem is of enormous importance in many practical fields, su...
Michael R. Fellows, Tzvika Hartman, Danny Hermelin...
WAOA
2004
Springer
91views Algorithms» more  WAOA 2004»
15 years 12 months ago
Pricing Network Edges to Cross a River
Abstract. We consider a Stackelberg pricing problem in directed networks. Tariffs have to be defined by an operator, the leader, for a subset of the arcs, the tariff arcs. Clien...
Alexander Grigoriev, Stan P. M. van Hoesel, Anton ...