Fit Like You Sample: Sample-Efficient Generalized Score Matching from Fast Mixing Diffusions

no code implementations • 15 Jun 2023 • Yilong Qin, Andrej Risteski

Moreover, we show that if the distribution being learned is a finite mixture of Gaussians in $d$ dimensions with a shared covariance, the sample complexity of annealed score matching is polynomial in the ambient dimension, the diameter of the means, and the smallest and largest eigenvalues of the covariance -- obviating the Poincar\'e constant-based lower bounds of the basic score matching loss shown in Koehler et al. 2022.

Powering Comparative Classification with Sentiment Analysis via Domain Adaptive Knowledge Transfer

1 code implementation • EMNLP 2021 • Zeyu Li, Yilong Qin, Zihan Liu, Wei Wang

We study Comparative Preference Classification (CPC) which aims at predicting whether a preference comparison exists between two entities in a given sentence and, if so, which entity is preferred over the other.

Question Answering Sentence +2