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cs.LG2024
Efficiently learning and sampling multimodal distributions with data-based initialization
Frederic Koehler, Holden Lee, Thuy-Duong Vuong
We consider the problem of sampling a multimodal distribution with a Markov chain given a small number of samples from the stationary measure. Although mixing can be arbitrarily sl…
math.PR2024
Trickle-Down in Localization Schemes and Applications
Nima Anari, Frederic Koehler, Thuy-Duong Vuong
Trickle-down is a phenomenon in high-dimensional expanders with many important applications -- for example, it is a key ingredient in various constructions of high-dimensional expa…