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Gantavya Bhatt

8 accepted papers

2026

Benchmarking Single-Factor Physical Video-to-Audio Generation

CVPR 2026

Generative video-to-audio (V2A) models produce highly plausible soundtracks, but it remains unclear whether they capture the underlying physical processes. Existing evaluations emphasize perceptual realism and overlook physical correctness under controlled interventions. In this paper, we introduce

Cited by 0SourceScholar
2026

Matched Data, Better Models: Target Aligned Data Filtering with Sparse Features

ICLR 2026poster

Data filtering plays a central role in improving model performance, particularly for vision language models that are pretrained on large, noisy, and redundant image-caption datasets. Existing filtering techniques assess every sample individually and retain those that exceed a certain quality thresho…

Cited by 0SourceScholar
2025

COBRA: COmBinatorial Retrieval Augmentation for Few-Shot Adaptation

CVPR 2025poster

Retrieval augmentation, the practice of retrieving additional data from large auxiliary pools, has emerged as an effective technique for enhancing model performance in the low-data regime. Prior approaches have employed only nearest-neighbor based strategies for data selection, which retrieve auxili…

2025

Comparing Bad Apples to Good Oranges Aligning Large Language Models via Joint Preference Optimization

ACL 2025finding

A common technique for aligning large language models (LLMs) relies on acquiring human preferences by comparing multiple generations conditioned on a fixed context. This method, however, relies solely on pairwise comparisons, where the generations are evaluated within an identical context. While eff…

2024

An Experimental Design Framework for Label-Efficient Supervised Finetuning of Large Language Models

ACL 2024findings

Supervised finetuning (SFT) on instruction datasets has played a crucial role in achieving the remarkable zero-shot generalization capabilities observed in modern large language models (LLMs). However, the annotation efforts required to produce high quality responses for instructions are becoming pr…

Cited by 17SourcePDFScholar
2023

High Resolution Point Clouds from mmWave Radar

ICRA 2023poster

This paper explores a machine learning approach on data from a single-chip mmWave radar for generating high resolution point clouds – a key sensing primitive for robotic applications such as mapping, odometry and localization. Unlike lidar and vision-based systems, mmWave radar can operate in harsh…

Cited by 60SourceScholar
2022

Matryoshka Representation Learning

NeurIPS 2022accept

Learned representations are a central component in modern ML systems, serving a multitude of downstream tasks. When training such representations, it is often the case that computational and statistical constraints for each downstream task are unknown. In this context rigid, fixed capacity represent…