Search for tag: "clique"

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07:50 ECS 220 5c:6.6 why is it hard to prove P neq NP ECS 220 5c:6.6 why is it hard to prove P neq NP	ECS 220 5c:6.6 why is it hard to prove P neq NP statement algorithm clique proof problems algorithms np star size circuits circuit reason instance fact sat end threshold boolean instances gates From David Doty 0 likes 15 plays 0
09:25 ECS 220 5b:6.6-4 two lemmas and full proof of… ECS 220 5b:6.6-4 two lemmas and full proof of Ladner_s theorem	ECS 220 5b:6.6-4 two lemmas and full proof of Ladner_s theorem clique strings statement stage steps qi a. y. problem length lemma string input table answer statements language conditions condition return From David Doty 0 likes 14 plays 0
07:35 ECS 220 5b:6.6-2 almost proof of Ladner's… ECS 220 5b:6.6-2 almost proof of Ladner's theorem	ECS 220 5b:6.6-2 almost proof of Ladner's theorem clique stage stages programs q0 strings string output problem x. point reduction np formula proof bees a. input reductions booleans From David Doty 0 likes 14 plays 0
07:45 ECS 220 5b:6.6-1 Ladner's theorem, existence… ECS 220 5b:6.6-1 Ladner's theorem, existence of NP-intermediate problems	ECS 220 5b:6.6-1 Ladner's theorem, existence of NP-intermediate problems problem np string problems theorem length a. answers strings satisfiability evidence complete clique things answer language sac words x. numbers From David Doty 0 likes 18 plays 0
06:08 ECS 220 5a:6.4-2 P^SAT and P^NP ECS 220 5a:6.4-2 P^SAT and P^NP	ECS 220 5a:6.4-2 P^SAT and P^NP oracle problem inputs clique p2 question half problems class complexity portion circuit formula exists pi np fact sap sat sac From David Doty 0 likes 35 plays 0
08:48 ECS 220 2a:4.2-4 Clique, Independent-Set,… ECS 220 2a:4.2-4 Clique, Independent-Set, Vertex-Cover	ECS 220 2a:4.2-4 Clique, Independent-Set, Vertex-Cover nodes edges graph size problem cover vertex clique optimization pair subset decision polynomial edge words concept question threshold rivalries party From David Doty 0 likes 26 plays 0
03:43 ECS 120 8c:4 Cook-Levin Theorem if P neq NP, then… ECS 120 8c:4 Cook-Levin Theorem if P neq NP, then no NP-complete problem is in P	ECS 120 8c:4 Cook-Levin Theorem if P neq NP, then no NP-complete problem is in P reduction notes lecture problem np theorem problems cook question sat clique reductions levin complete object sense couple age examples width From David Doty 0 likes 93 plays 0
06:53 ECS 120 8b:3 using reductions to bound hardness… ECS 120 8b:3 using reductions to bound hardness of problems	ECS 120 8b:3 using reductions to bound hardness of problems input length algorithm instance answer thing b. cubed contrapositive problems c. decider mb x. function nb proof a. reducible clique From David Doty 0 likes 123 plays 0
11:52 ECS 120 8b:2 definition of polynomial-time… ECS 120 8b:2 definition of polynomial-time reducibility	ECS 120 8b:2 definition of polynomial-time reducibility Errata: starting at 8:30, I show Python code with the function reduction_from_clique_to_independent_set. This should be reduction_from_independent_set_to_clique instead. algorithm clique instance strings reduction b. input graph star problem idea answer a. output function compliment nodes pair requirement difficulty From David Doty 0 likes 152 plays 0
07:22 ECS 120 8b:1 reducing IndSet to Clique ECS 120 8b:1 reducing IndSet to Clique	ECS 120 8b:1 reducing IndSet to Clique graph clique edges problem algorithm nodes edge pair gi subroutine pairs c. node compliment transformation g. definition reduction instances types From David Doty 0 likes 155 plays 0
09:55 ECS 120 7c:4 example problem in NP - SubsetSum ECS 120 7c:4 example problem in NP - SubsetSum	ECS 120 7c:4 example problem in NP - SubsetSum collection subset sum clique proof integers problem np graph size numbers element times problems c. addition s. python witness thing From David Doty 1 likes 123 plays 0
07:02 ECS 120 7c:3 example problem in NP - Clique ECS 120 7c:3 example problem in NP - Clique	ECS 120 7c:3 example problem in NP - Clique clique size nodes graph verifier pairs problem input words pair problems iteration iterations loop g. threshold linear execution ways python From David Doty 1 likes 169 plays 0