Why it matters

Derandomization is theoretical technique. Understanding shapes complexity theory.

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The architecture

Method of conditional probabilities.

Pairwise-independent hash families.

PRGs against complexity classes.

Derandomization techniquesRandom algorithmexpected goodEnumerate strategiesmethod of cond probDeterministicpolynomial costTrade randomness for complexity; some algorithms lose polynomial time
Derandomization.
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How it works end to end

Method of conditional probabilities.

Pairwise independence saves randomness.

PRGs vs restricted classes.