Search Results for author: Grigorios Loukides

Found 2 papers, 1 papers with code

Differentially Private Top-k Selection via Canonical Lipschitz Mechanism

no code implementations31 Jan 2022 Michael Shekelyan, Grigorios Loukides

Second, this new generalized mechanism is paired with a canonical loss function to obtain the canonical Lipschitz mechanism, which can directly select k-subsets out of $d$ items in $O(dk+d \log d)$ time.

Maximizing approximately k-submodular functions

1 code implementation18 Jan 2021 Leqian Zheng, Hau Chan, Grigorios Loukides, Minming Li

Last, we demonstrate experimentally that the greedy algorithms are effective in sensor placement and influence maximization problems.

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