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» Complexity of Operations on Cofinite Languages
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OTM
2010
Springer
13 years 5 months ago
Supporting Complex Changes in Evolving Interrelated Web Databanks
In this paper we deal with problems occurring in evolving interrelated Web databanks. Examples of such databanks are networks of interlinked scientific repositories on the Web, man...
Yannis Stavrakas, George Papastefanatos
JACM
2002
122views more  JACM 2002»
13 years 7 months ago
Cosmological lower bound on the circuit complexity of a small problem in logic
An exponential lower bound on the circuit complexity of deciding the weak monadic second-order theory of one successor (WS1S) is proved. Circuits are built from binary operations, ...
Larry J. Stockmeyer, Albert R. Meyer
COCOON
2006
Springer
13 years 11 months ago
Reconstructing Evolution of Natural Languages: Complexity and Parameterized Algorithms
In a recent article, Nakhleh, Ringe and Warnow introduced perfect phylogenetic networks--a model of language evolution where languages do not evolve via clean speciation--and form...
Iyad A. Kanj, Luay Nakhleh, Ge Xia
ICEBE
2005
IEEE
168views Business» more  ICEBE 2005»
14 years 1 months ago
Frequency Operators for Condensative Queries over Data Streams
Over a traditional Database Management System (DBMS), the answer to an aggregate query is usually much smaller than the answer to a similar nonaggregate query. Therefore, we call ...
Lisha Ma, Werner Nutt
CSL
1999
Springer
13 years 11 months ago
A Road-Map on Complexity for Hybrid Logics
Hybrid languages are extended modal languages which can refer to (or even quantify over) states. Such languages are better behaved proof theoretically than ordinary modal languages...
Carlos Areces, Patrick Blackburn, Maarten Marx