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SIAMCOMP
2008
84views more  SIAMCOMP 2008»
13 years 4 months ago
Resolution Is Not Automatizable Unless W[P] Is Tractable
We show that neither Resolution nor tree-like Resolution is automatizable unless the class W[P] from the hierarchy of parameterized problems is fixed-parameter tractable by randomi...
Michael Alekhnovich, Alexander A. Razborov
CIE
2010
Springer
13 years 6 months ago
The Limits of Tractability in Resolution-Based Propositional Proof Systems
We study classes of propositional contradictions based on the Least Number Principle (LNP) in the refutation system of Resolution and its generalisations with bounded conjunction, ...
Stefan S. Dantchev, Barnaby Martin
AAAI
2000
13 years 6 months ago
The Complexity of Restricted Consequence Finding and Abduction
We analyze the complexity of propositional kernel resolution (del Val 1999), a general method for obtaining logical consequences in restricted target languages. Different choices ...
Alvaro del Val
AIPS
2007
13 years 7 months ago
Structural Patterns of Tractable Sequentially-Optimal Planning
We study the complexity of sequentially-optimal classical planning, and discover new problem classes for whose such optimization is tractable. The results are based on exploiting ...
Michael Katz, Carmel Domshlak