Search Results for author: Anish Sevekari

Found 2 papers, 0 papers with code

Pitfalls of Gaussians as a noise distribution in NCE

no code implementations1 Oct 2022 Holden Lee, Chirag Pabbaraju, Anish Sevekari, Andrej Risteski

Noise Contrastive Estimation (NCE) is a popular approach for learning probability density functions parameterized up to a constant of proportionality.

Universal Approximation for Log-concave Distributions using Well-conditioned Normalizing Flows

no code implementations ICML Workshop INNF 2021 Holden Lee, Chirag Pabbaraju, Anish Sevekari, Andrej Risteski

As ill-conditioned Jacobians are an obstacle for likelihood-based training, the fundamental question remains: which distributions can be approximated using well-conditioned affine coupling flows?

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