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ICALP
2007
Springer
16 years 28 days ago
Sharp Tractability Borderlines for Finding Connected Motifs in Vertex-Colored Graphs
We study the problem of finding occurrences of motifs in vertex-colored graphs, where a motif is a multiset of colors, and an occurrence of a motif is a subset of connected vertic...
Michael R. Fellows, Guillaume Fertin, Danny Hermel...
LICS
2006
IEEE
16 years 23 days ago
On Typability for Rank-2 Intersection Types with Polymorphic Recursion
We show that typability for a natural form of polymorphic recursive typing for rank-2 intersection types is undecidable. Our proof involves characterizing typability as a context ...
Tachio Terauchi, Alex Aiken
ICALP
2005
Springer
16 years 8 days ago
Idealized Algol with Ground Recursion, and DPDA Equivalence
Abstract. We prove that observational equivalence of IA3 + Y0 (3rdorder Idealized Algol with 0th-order recursion) is equivalent to the DPDA Equivalence Problem, and hence decidable...
Andrzej S. Murawski, C.-H. Luke Ong, Igor Walukiew...
MFCS
2005
Springer
16 years 8 days ago
Greedy Approximation via Duality for Packing, Combinatorial Auctions and Routing
We study simple greedy approximation algorithms for general class of integer packing problems. We provide a novel analysis based on the duality theory of linear programming. This e...
Piotr Krysta
JFPLC
2001
15 years 8 months ago
Recherche adaptative et contraintes musicales
We propose an environment for musical constraint solving, in the visual programming language OpenMusic. We describe an implementation of a local search algorithm, called adaptive s...
Charlotte Truchet, Carlos Agon, Gérard Assa...