activity
20212025
most citedQuantifying Prediction Consistency Under Fine-Tuning Multiplicity in Tabular LLMs

4 citations · 5 across the 13 of their papers we have counts for

collaborators

13 papers

cs.LG2025

Learning Invariant Graph Representations Through Redundant Information

Barproda Halder, Pasan Dissanayake, Sanghamitra Dutta

Learning invariant graph representations for out-of-distribution (OOD) generalization remains challenging because the learned representations often retain spurious components. To a…

cs.LG2025

TabDistill: Distilling Transformers into Neural Nets for Few-Shot Tabular Classification

Pasan Dissanayake, Sanghamitra Dutta

Transformer-based models have shown promising performance on tabular data compared to their classical counterparts such as neural networks and Gradient Boosted Decision Trees (GBDT…

cs.LG2025

Few-Shot Knowledge Distillation of LLMs With Counterfactual Explanations

Faisal Hamman, Pasan Dissanayake, Yanjun Fu +1

Knowledge distillation is a promising approach to transfer capabilities from complex teacher models to smaller, resource-efficient student models that can be deployed easily, parti…

cs.IT2025

What If, But Privately: Private Counterfactual Retrieval

Shreya Meel, Mohamed Nomeir, Pasan Dissanayake +2

Transparency and explainability are two important aspects to be considered when employing black-box machine learning models in high-stake applications. Providing counterfactual exp…

cs.LG2025

Counterfactual Explanations for Model Ensembles Using Entropic Risk Measures

Erfaun Noorani, Pasan Dissanayake, Faisal Hamman +1

Counterfactual explanations indicate the smallest change in input that can translate to a different outcome for a machine learning model. Counterfactuals have generated immense int…

cs.IT2024

Private Counterfactual Retrieval With Immutable Features

Shreya Meel, Pasan Dissanayake, Mohamed Nomeir +2

In a classification task, counterfactual explanations provide the minimum change needed for an input to be classified into a favorable class. We consider the problem of privately r…

stat.ML2024

Quantifying Knowledge Distillation Using Partial Information Decomposition

Pasan Dissanayake, Faisal Hamman, Barproda Halder +3

Knowledge distillation deploys complex machine learning models in resource-constrained environments by training a smaller student model to emulate internal representations of a com…

cs.IT2024

Private Counterfactual Retrieval

Mohamed Nomeir, Pasan Dissanayake, Shreya Meel +2

Transparency and explainability are two extremely important aspects to be considered when employing black-box machine learning models in high-stake applications. Providing counterf…

cs.LG2024★ 4 cited

Quantifying Prediction Consistency Under Fine-Tuning Multiplicity in Tabular LLMs

Faisal Hamman, Pasan Dissanayake, Saumitra Mishra +2

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 sam…

cs.LG2024

Towards Formalizing Spuriousness of Biased Datasets Using Partial Information Decomposition

Barproda Halder, Faisal Hamman, Pasan Dissanayake +3

Spuriousness arises when there is an association between two or more variables in a dataset that are not causally related. In this work, we propose an explainability framework to p…

cs.LG2024★ 1 cited

Model Reconstruction Using Counterfactual Explanations: A Perspective From Polytope Theory

Pasan Dissanayake, Sanghamitra Dutta

Counterfactual explanations provide ways of achieving a favorable model outcome with minimum input perturbation. However, counterfactual explanations can also be leveraged to recon…

math.PR2021

The Eigenvectors of Single-spiked Complex Wishart Matrices: Finite and Asymptotic Analyses

Prathapasinghe Dharmawansa, Pasan Dissanayake, Yang Chen

Let be a {\it single-spiked} Wishart matrix in the class with…

math.PR2021

Distribution of the Scaled Condition Number of Single-spiked Complex Wishart Matrices

Pasan Dissanayake, Prathapasinghe Dharmawansa, Yang Chen

Let () be a random matrix with independent columns each distributed as complex multivariate Gaussian with zero mean and {\it single-s…