Search Results for author: S Chandra Mouli

Found 8 papers, 2 papers with code

MetaPhysiCa: OOD Robustness in Physics-informed Machine Learning

no code implementations6 Mar 2023 S Chandra Mouli, Muhammad Ashraful Alam, Bruno Ribeiro

A fundamental challenge in physics-informed machine learning (PIML) is the design of robust PIML methods for out-of-distribution (OOD) forecasting tasks.

Meta-Learning Physics-informed machine learning

Bias Challenges in Counterfactual Data Augmentation

no code implementations12 Sep 2022 S Chandra Mouli, Yangze Zhou, Bruno Ribeiro

Deep learning models tend not to be out-of-distribution robust primarily due to their reliance on spurious features to solve the task.

counterfactual Data Augmentation

Asymmetry Learning for Counterfactually-invariant Classification in OOD Tasks

no code implementations ICLR 2022 S Chandra Mouli, Bruno Ribeiro

Generalizing from observed to new related environments (out-of-distribution) is central to the reliability of classifiers.

Classification

Neural Networks for Learning Counterfactual G-Invariances from Single Environments

1 code implementation20 Apr 2021 S Chandra Mouli, Bruno Ribeiro

In order to endow neural networks with the ability to extrapolate over group transformations, we introduce a learning framework counterfactually-guided by the learning hypothesis that any group invariance to (known) transformation groups is mandatory even without evidence, unless the learner deems it inconsistent with the training data.

counterfactual

Neural Network Extrapolations with G-invariances from a Single Environment

no code implementations ICLR 2021 S Chandra Mouli, Bruno Ribeiro

In order to endow neural networks with the ability to extrapolate over group transformations, we introduce a learning framework guided by a new learning hypothesis: Any invariance to transformation groups is mandatory even without evidence, unless the learner deems it inconsistent with the training data.

counterfactual Counterfactual Inference

Deceptive Deletions for Protecting Withdrawn Posts on Social Platforms

no code implementations28 May 2020 Mohsen Minaei, S Chandra Mouli, Mainack Mondal, Bruno Ribeiro, Aniket Kate

Our mechanism injects decoy deletions, hence creating a two-player minmax game between an adversary that seeks to classify damaging content among the deleted posts and a challenger that employs decoy deletions to masquerade real damaging deletions.

Deep Lifetime Clustering

1 code implementation1 Oct 2019 S Chandra Mouli, Leonardo Teixeira, Jennifer Neville, Bruno Ribeiro

The goal of lifetime clustering is to develop an inductive model that maps subjects into $K$ clusters according to their underlying (unobserved) lifetime distribution.

Clustering

A Deep Learning Approach for Survival Clustering without End-of-life Signals

no code implementations ICLR 2018 S Chandra Mouli, Bruno Ribeiro, Jennifer Neville

The goal of survival clustering is to map subjects (e. g., users in a social network, patients in a medical study) to $K$ clusters ranging from low-risk to high-risk.

Clustering

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