2 papers
cs.DS2026
Dimension Reduction via Sum-of-Squares and Improved Clustering Algorithms for Non-Spherical Mixtures
Prashanti Anderson, Mitali Bafna, Rares-Darius Buhai +2
We develop a new approach for clustering non-spherical (i.e., arbitrary component covariances) Gaussian mixture models via a subroutine, based on the sum-of-squares method, that fi…
cs.DS2024
Semirandom Planted Clique and the Restricted Isometry Property
JarosÅaw BÅasiok, Rares-Darius Buhai, Pravesh K. Kothari +1
We give a simple, greedy -time algorithm to list-decode planted cliques in a semirandom model introduced in [CSV17] (following [FK01]) that succeeds whe…