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Artur Czumaj

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On testing networks that compute ...Workshop on Local Algorithms (WoLA) 20242024-08-05
Introduces a property-testing model for fully connected feedforward ReLU networks where distance means changing at most an epsilon-fraction of weights per…
Talk on
Property Testing for GraphsSublinear Algorithms Boot Camp 20242024-05-21
Survey of graph property testing that draws a sharp line between models and gives concrete bounds: dense graphs admit constant‑query testers for every…
Talk on
Conditional Hardness for Massively Parallel Computing (MPC) Via Distributed Lower BoundsSublinear Algorithms Boot Camp 20242024-05-21
Shows that MPC with linear local space is essentially equivalent to congested clique equivalence, so unconditional lower bounds would imply circuit complexity…
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Generating Random Permutations Using Switching NetworksApproximate Counting, Markov Chains and Phase Transitions2016-02-22
Almost every fixed switching network of logarithmic depth yields a distribution that is uniform on 99% of elements; proofs use expansion of short layered…
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Fast Testing of Graph PropertiesWorkshop on Succinct Data Representations and Applications (Simons Institute Big Data 2013)2013-09-16
Characterizes what's testable fast and where costs hide: dense graphs (adjacency matrix) admit constant-query testers for all hereditary properties but with…
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