'Random 3 sat' diaporamas de présentation

DPLL Davis Putnam Loveland Logmann

DPLL Davis Putnam Loveland Logmann. Model finding: Backtrack search over space of partial truth assignments. DPLL( wff ): Simplify wff: for each unit clause (Y) Remove clauses containing Y if no clause left then return true (satisfiable)

1.47k views • 124 slides

Beyond Satisfiability: Model Counting, Quantification, and Randomization

1.05k views • 105 slides

Where are the hard problems?

Where are the hard problems?. Patrick Prosser with help from Peter Cheeseman Bob Kanefsky Will Taylor APES and many more. Where are the hard problems?. Remember Graph Colouring?. Remember 3Col?. 3 Colour me?. 3 Colour me?. Easy?. 3 Colour me?. 3 Colour me?. Easy?. 3 Colour me?.

613 views • 51 slides

CS 4700: Foundations of Artificial Intelligence

CS 4700: Foundations of Artificial Intelligence. Carla P. Gomes gomes@cs.cornell.edu Module: Instance Hardness and Phase Transitions (Reading R&N: page 224-225). Instance Hardness. Beyond NP-Completeness. NP-Completeness is a worst-case notion! Not all problems instances are the same!

285 views • 17 slides