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ICALP
2007
Springer
14 years 4 months ago
Universal Algebra and Hardness Results for Constraint Satisfaction Problems
We present algebraic conditions on constraint languages Γ that ensure the hardness of the constraint satisfaction problem CSP(Γ) for complexity classes L, NL, P, NP and ModpL. Th...
Benoit Larose, Pascal Tesson
DSS
2007
113views more  DSS 2007»
13 years 10 months ago
An associate constraint network approach to extract multi-lingual information for crime analysis
International crime and terrorism have drawn increasing attention in recent years. Retrieving relevant information from criminal records and suspect communications is important in...
Christopher C. Yang, Kar Wing Li
ICC
2007
IEEE
185views Communications» more  ICC 2007»
14 years 5 months ago
Maximal Lifetime Rate and Power Allocation for Sensor Networks with Data Distortion Constraints
— We address a lifetime maximization problem for a single-hop wireless sensor network where multiple sensors encode and communicate their measurements of a Gaussian random source...
James C. F. Li, Subhrakanti Dey, Jamie S. Evans
ASIAN
2004
Springer
150views Algorithms» more  ASIAN 2004»
14 years 4 months ago
Concurrent Constraint-Based Memory Machines: A Framework for Java Memory Models
A central problem in extending the von Neumann architecture to petaflop computers with millions of hardware threads and with a shared memory is defining the memory model [Lam79,...
Vijay A. Saraswat
WWW
2004
ACM
14 years 11 months ago
Schemapath, a minimal extension to xml schema for conditional constraints
In the past few years, a number of constraint languages for XML documents has been proposed. They are cumulatively called schema languages or validation languages and they compris...
Claudio Sacerdoti Coen, Paolo Marinelli, Fabio Vit...