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CSR
2008
Springer
13 years 6 months ago
Colouring, constraint satisfaction, and complexity
Constraint satisfaction problems have enjoyed much attention since the early seventies, and in the last decade have become also a focus of attention amongst theoreticians. Graph c...
Pavol Hell, Jaroslav Nesetril
ICDT
2009
ACM
175views Database» more  ICDT 2009»
14 years 7 months ago
Structural characterizations of schema-mapping languages
Schema mappings are declarative specifications that describe the relationship between two database schemas. In recent years, there has been an extensive study of schema mappings a...
Balder ten Cate, Phokion G. Kolaitis
CCS
2007
ACM
14 years 27 days ago
Privacy preserving error resilient dna searching through oblivious automata
Human Desoxyribo-Nucleic Acid (DNA) sequences offer a wealth of information that reveal, among others, predisposition to various diseases and paternity relations. The breadth and...
Juan Ramón Troncoso-Pastoriza, Stefan Katze...
ICALP
2007
Springer
14 years 26 days 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
CSL
2010
Springer
13 years 7 months ago
Ordered Sets in the Calculus of Data Structures
Our goal is to identify families of relations that are useful for reasoning about software. We describe such families using decidable quantifier-free classes of logical constraints...
Viktor Kuncak, Ruzica Piskac, Philippe Suter