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Sanghamitra Dutta

13 accepted papers

2025

Few-Shot Knowledge Distillation of LLMs With Counterfactual Explanations

NeurIPS 2025poster

Knowledge distillation is a promising approach to transfer capabilities from complex teacher models to smaller, resource-efficient student models that can be deployed easily, particularly in task-aware scenarios. However, existing methods of task-aware distillation typically require substantial quan…

Cited by 0SourceScholar
2025

Quantifying Knowledge Distillation using Partial Information Decomposition

AISTATS 2025poster

Knowledge distillation deploys complex machine learning models in resource-constrained environments by training a smaller student model to emulate internal representations of a complex teacher model. However, the teacher's representations can also encode nuisance or additional information not releva…

Cited by 0SourceScholar
2025

Quantifying Prediction Consistency Under Fine-tuning Multiplicity in Tabular LLMs

ICML 2025poster

Fine-tuning LLMs on tabular classification tasks can lead to the phenomenon of *fine-tuning multiplicity* where equally well-performing models make conflicting predictions on the same input. Fine-tuning multiplicity can arise due to variations in the training process, e.g., seed, weight initializati…

Cited by 0SourcePDFScholar
2025

T-SHIRT: Token-Selective Hierarchical Data Selection for Instruction Tuning

NeurIPS 2025poster

Instruction tuning is essential for Large Language Models (LLMs) to effectively follow user instructions. To improve training efficiency and reduce data redundancy, recent works use LLM-based scoring functions, e.g., Instruction-Following Difficulty (IFD), to select high–quality instruction-tuning d…

Cited by 0SourcecodeScholar
2024

Demystifying Local & Global Fairness Trade-offs in Federated Learning Using Partial Information Decomposition

ICLR 2024poster

This work presents an information-theoretic perspective to group fairness trade-offs in federated learning (FL) with respect to sensitive attributes, such as gender, race, etc. Existing works often focus on either $\textit{global fairness}$ (overall disparity of the model across all clients) or $\te…

Cited by 19SourcePDFScholar
2024

Model Reconstruction Using Counterfactual Explanations: A Perspective From Polytope Theory

NeurIPS 2024poster

Counterfactual explanations provide ways of achieving a favorable model outcome with minimum input perturbation. However, counterfactual explanations can also be leveraged to reconstruct the model by strategically training a surrogate model to give similar predictions as the original (target) model.…

2023

In- or out-of-distribution detection via dual divergence estimation

UAI 2023poster

Detecting out-of-distribution (OOD) samples is a problem of practical importance for a reliable use of deep neural networks (DNNs) in production settings. The corollary to this problem is the detection in-distribution (ID) samples, which is applicable to domain adaptation scenarios for augmenting a…

2023

Robust Counterfactual Explanations for Neural Networks With Probabilistic Guarantees

ICML 2023poster

There is an emerging interest in generating robust counterfactual explanations that would remain valid if the model is updated or changed even slightly. Towards finding robust counterfactuals, existing literature often assumes that the original model $m$ and the new model $M$ are bounded in the para…

2022

Robust Counterfactual Explanations for Tree-Based Ensembles

ICML 2022spotlight

Counterfactual explanations inform ways to achieve a desired outcome from a machine learning model. However, such explanations are not robust to certain real-world changes in the underlying model (e.g., retraining the model, changing hyperparameters, etc.), questioning their reliability in several a…

Cited by 63SourcePDFScholar
2021

Can Information Flows Suggest Targets for Interventions in Neural Circuits?

NeurIPS 2021poster

Motivated by neuroscientific and clinical applications, we empirically examine whether observational measures of information flow can suggest interventions. We do so by performing experiments on artificial neural networks in the context of fairness in machine learning, where the goal is to induce fa…

2020

Is There a Trade-Off Between Fairness and Accuracy? A Perspective Using Mismatched Hypothesis Testing

ICML 2020poster

A trade-off between accuracy and fairness is almost taken as a given in the existing literature on fairness in machine learning. Yet, it is not preordained that accuracy should decrease with increased fairness. Novel to this work, we examine fair classification through the lens of mismatched hypothe…

Cited by 195SourcePDFScholar
2018

Slow and Stale Gradients Can Win the Race: Error-Runtime Trade-offs in Distributed SGD

AISTATS 2018poster

Distributed Stochastic Gradient Descent (SGD) when run in a synchronous manner, suffers from delays in waiting for the slowest learners (stragglers). Asynchronous methods can alleviate stragglers, but cause gradient staleness that can adversely affect convergence. In this work we present the first t…

Cited by 0SourcePDFScholar
2016

Short-Dot: Computing Large Linear Transforms Distributedly Using Coded Short Dot Products

NeurIPS 2016poster

Faced with saturation of Moore's law and increasing size and dimension of data, system designers have increasingly resorted to parallel and distributed computing to reduce computation time of machine-learning algorithms. However, distributed computing is often bottle necked by a small fraction of sl…

Cited by 446SourcePDFScholar