Search Results for author: Prasad Chalasani

Found 3 papers, 2 papers with code

Representation Bayesian Risk Decompositions and Multi-Source Domain Adaptation

no code implementations22 Apr 2020 Xi Wu, Yang Guo, Jiefeng Chen, YIngyu Liang, Somesh Jha, Prasad Chalasani

Recent studies provide hints and failure examples for domain invariant representation learning, a common approach for this problem, but the explanations provided are somewhat different and do not provide a unified picture.

Domain Adaptation Representation Learning

CAUSE: Learning Granger Causality from Event Sequences using Attribution Methods

1 code implementation ICML 2020 Wei Zhang, Thomas Kobber Panum, Somesh Jha, Prasad Chalasani, David Page

We study the problem of learning Granger causality between event types from asynchronous, interdependent, multi-type event sequences.

Concise Explanations of Neural Networks using Adversarial Training

1 code implementation ICML 2020 Prasad Chalasani, Jiefeng Chen, Amrita Roy Chowdhury, Somesh Jha, Xi Wu

Our first contribution is a theoretical exploration of how these two properties (when using attributions based on Integrated Gradients, or IG) are related to adversarial training, for a class of 1-layer networks (which includes logistic regression models for binary and multi-class classification); for these networks we show that (a) adversarial training using an $\ell_\infty$-bounded adversary produces models with sparse attribution vectors, and (b) natural model-training while encouraging stable explanations (via an extra term in the loss function), is equivalent to adversarial training.

Multi-class Classification

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