Search Results for author: Swati Gupta

Found 14 papers, 2 papers with code

Mixed-Integer Projections for Automated Data Correction of EMRs Improve Predictions of Sepsis among Hospitalized Patients

no code implementations21 Aug 2023 Mehak Arora, Hassan Mortagy, Nathan Dwarshius, Swati Gupta, Andre L. Holder, Rishikesan Kamaleswaran

In particular, by using high-dimensional mixed-integer programs that capture physiological and biological constraints on patient vitals and lab values, we can harness the power of mathematical "projections" for the EMR data to correct patient data.

TACOS: Topology-Aware Collective Algorithm Synthesizer for Distributed Machine Learning

no code implementations11 Apr 2023 William Won, Midhilesh Elavazhagan, Sudarshan Srinivasan, Ajaya Durg, Samvit Kaul, Swati Gupta, Tushar Krishna

To this end, this paper introduces TACOS, an automated synthesizer that generates topology-aware collective algorithms for common distributed machine learning collectives across arbitrary input network topologies.

Artificial Intelligence/Operations Research Workshop 2 Report Out

no code implementations10 Apr 2023 John Dickerson, Bistra Dilkina, Yu Ding, Swati Gupta, Pascal Van Hentenryck, Sven Koenig, Ramayya Krishnan, Radhika Kulkarni, Catherine Gill, Haley Griffin, Maddy Hunter, Ann Schwartz

This workshop Report Out focuses on the foundational elements of trustworthy AI and OR technology, and how to ensure all AI and OR systems implement these elements in their system designs.

Fairness

Tree DNN: A Deep Container Network

no code implementations7 Dec 2022 Brijraj Singh, Swati Gupta, Mayukh Das, Praveen Doreswamy Naidu, Sharan Kumar Allur

TreeDNN helps in training the model with multiple datasets simultaneously, where each branch of the tree may need a different training dataset.

Multi-Task Learning

Reusing Combinatorial Structure: Faster Iterative Projections over Submodular Base Polytopes

1 code implementation NeurIPS 2021 Jai Moondra, Hassan Mortagy, Swati Gupta

Motivated by this trade-off in runtime v/s convergence rates, we consider iterative projections of close-by points over widely-prevalent submodular base polytopes $B(f)$.

Algorithmic Challenges in Ensuring Fairness at the Time of Decision

no code implementations16 Mar 2021 Jad Salem, Swati Gupta, Vijay Kamble

The goal of this paper is to highlight the rich interface between temporal notions of fairness and online decision-making through a novel meta-objective of ensuring fairness at the time of decision.

Decision Making Fairness

Balanced Districting on Grid Graphs with Provable Compactness and Contiguity

no code implementations9 Feb 2021 Cyrus Hettle, Shixiang Zhu, Swati Gupta, Yao Xie

Given a graph $G = (V, E)$ with vertex weights $w(v)$ and a desired number of parts $k$, the goal in graph partitioning problems is to partition the vertex set V into parts $V_1,\ldots, V_k$.

graph partitioning Data Structures and Algorithms Combinatorics Optimization and Control

Multi-Threshold Attention U-Net (MTAU) based Model for Multimodal Brain Tumor Segmentation in MRI scans

no code implementations29 Jan 2021 Navchetan Awasthi, Rohit Pardasani, Swati Gupta

Here, we have developed a multi-threshold model based on attention U-Net for identification of various regions of the tumor in magnetic resonance imaging (MRI).

Brain Tumor Segmentation Segmentation +1

Walking in the Shadow: A New Perspective on Descent Directions for Constrained Minimization

1 code implementation NeurIPS 2020 Hassan Mortagy, Swati Gupta, Sebastian Pokutta

We combine these insights into a novel Shadow-CG method that uses FW and shadow steps, while enjoying linear convergence, with a rate that depends on the number of breakpoints in its projection curve, rather than the pyramidal width.

Group-Fair Online Allocation in Continuous Time

no code implementations NeurIPS 2020 Semih Cayci, Swati Gupta, Atilla Eryilmaz

Furthermore, as a consequence of certain ethical and economic concerns, the controller may impose deadlines on the completion of each task, and require fairness across different groups in the allocation of total time budget $B$.

Cloud Computing Decision Making +2

Reducing the Feeder Effect in Public School Admissions: A Bias-aware Analysis for Targeted Interventions

no code implementations22 Apr 2020 Yuri Faenza, Swati Gupta, Xuan Zhang

These scores are known to be impacted by socioeconomic status of students and test preparation received in "feeder" middle schools, leading to a massive filtering effect in the education pipeline.

Robust Classification using Robust Feature Augmentation

no code implementations26 May 2019 Kevin Eykholt, Swati Gupta, Atul Prakash, Amir Rahmati, Pratik Vaishnavi, Haizhong Zheng

Existing deep neural networks, say for image classification, have been shown to be vulnerable to adversarial images that can cause a DNN misclassification, without any perceptible change to an image.

Binarization Classification +3

Individual Fairness in Hindsight

no code implementations10 Dec 2018 Swati Gupta, Vijay Kamble

In this paper, we extend the notion of IF to account for the time at which a decision is made, in settings where there exists a notion of conduciveness of decisions as perceived by the affected individuals.

Decision Making Fairness

Solving Combinatorial Games using Products, Projections and Lexicographically Optimal Bases

no code implementations1 Mar 2016 Swati Gupta, Michel Goemans, Patrick Jaillet

We give a general recipe to simulate the multiplicative weights update algorithm in time polynomial in their natural dimension.

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