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Shayan Oveis Gharan

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  • ITCS2 editions2022–2023

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titleconferencedate
Matroid Partition Property and the Secretary ProblemITCS 20232023-01-10
Proves that no algorithm which first reduces a matroid to a partition matroid (possibly after sampling a beta fraction) and then runs the standard secretary…
Talk
Counting and Sampling Perfect Matchings in Regular Expanding Non-Bipartite GraphsITCS 20222022-01-31
Gives a randomized algorithm that approximates and samples perfect matchings in d-regular ε-spectral expanders in time n^{o(log d)} (more precisely n^{o(log d)…
Talk on
On Structural Properties of Low Threshold Rank GraphsStructure vs. Randomness 20172017-04-10
Defines epsilon-threshold rank as the count of normalized-adjacency eigenvalues with |λ| ≥ ε and studies graphs where that rank is small. Proves any graph…
Talk
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