Search Results for author: Sandhya Tripathi

Found 8 papers, 2 papers with code

Algorithmic Bias in Machine Learning Based Delirium Prediction

no code implementations8 Nov 2022 Sandhya Tripathi, Bradley A Fritz, Michael S Avidan, Yixin Chen, Christopher R King

Although prediction models for delirium, a commonly occurring condition during general hospitalization or post-surgery, have not gained huge popularity, their algorithmic bias evaluation is crucial due to the existing association between social determinants of health and delirium risk.

A Modulation Layer to Increase Neural Network Robustness Against Data Quality Issues

1 code implementation19 Jul 2021 Mohamed Abdelhack, Jiaming Zhang, Sandhya Tripathi, Bradley A Fritz, Daniel Felsky, Michael S Avidan, Yixin Chen, Christopher R King

Data missingness and quality are common problems in machine learning, especially for high-stakes applications such as healthcare.

Imputation

(Un)fairness in Post-operative Complication Prediction Models

no code implementations3 Nov 2020 Sandhya Tripathi, Bradley A. Fritz, Mohamed Abdelhack, Michael S. Avidan, Yixin Chen, Christopher R. King

With the current ongoing debate about fairness, explainability and transparency of machine learning models, their application in high-impact clinical decision-making systems must be scrutinized.

Decision Making Fairness

GANs for learning from very high class conditional noisy labels

no code implementations19 Oct 2020 Sandhya Tripathi, N Hemachandra

We use Generative Adversarial Networks (GANs) to design a class conditional label noise (CCN) robust scheme for binary classification.

Binary Classification Vocal Bursts Intensity Prediction

Interpretable feature subset selection: A Shapley value based approach

no code implementations12 Jan 2020 Sandhya Tripathi, N. Hemachandra, Prashant Trivedi

For feature selection and related problems, we introduce the notion of classification game, a cooperative game, with features as players and hinge loss based characteristic function and relate a feature's contribution to Shapley value based error apportioning (SVEA) of total training error.

feature selection General Classification

Attribute noise robust binary classification

no code implementations18 Nov 2019 Aditya Petety, Sandhya Tripathi, N. Hemachandra

In Sy-De attribute noise model, where all features could be noisy together with same probability, we show that $0$-$1$ loss ($l_{0-1}$) need not be robust but a popular surrogate, squared loss ($l_{sq}$) is.

Attribute Binary Classification +2

Cost Sensitive Learning in the Presence of Symmetric Label Noise

no code implementations8 Jan 2019 Sandhya Tripathi, N. Hemachandra

Our computational experiments on some UCI datasets with class imbalance show that classifiers of our two schemes are on par with the existing methods and in fact better in some cases w. r. t.

Binary Classification

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