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» On the complexity of stratified logics
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LICS
1999
IEEE
15 years 10 months ago
Counting and Addition Cannot Express Deterministic Transitive Closure
An important open question in complexity theory is whether the circuit complexity class TC0 is (strictly) weaker than LOGSPACE. This paper considers this question from the viewpoi...
Matthias Ruhl
FOSSACS
2008
Springer
15 years 7 months ago
Beyond Rank 1: Algebraic Semantics and Finite Models for Coalgebraic Logics
Coalgebras provide a uniform framework for the semantics of a large class of (mostly non-normal) modal logics, including e.g. monotone modal logic, probabilistic and graded modal l...
Dirk Pattinson, Lutz Schröder
CSMR
1998
IEEE
15 years 10 months ago
A Metrics Suite for Concurrent Logic Programs
AbstractA large body of research in the measurement of software complexity has been focused on imperative programs, but little eort has been made for logic programs. In this paper,...
Jianjun Zhao, Jingde Cheng, Kazuo Ushijima
ECCC
2007
90views more  ECCC 2007»
15 years 6 months ago
Parameterized Proof Complexity: a Complexity Gap for Parameterized Tree-like Resolution
We propose a proof-theoretic approach for gaining evidence that certain parameterized problems are not fixed-parameter tractable. We consider proofs that witness that a given pro...
Stefan S. Dantchev, Barnaby Martin, Stefan Szeider
ICCD
1992
IEEE
83views Hardware» more  ICCD 1992»
15 years 10 months ago
Logical Verification of the NVAX CPU Chip Design
ct Digital's NVAX high-performance microprocessor has a complex logical design. A rigorous simulation-based verification effort was undertaken to ensure that there were no log...
Walker Anderson