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Venktesh V

4 accepted papers

2025

SUNAR: Semantic Uncertainty based Neighborhood Aware Retrieval for Complex QA

NAACL 2025long

Complex question-answering (QA) systems face significant challenges in retrieving and reasoning over information that addresses multifaceted queries. While large language models (LLMs) have advanced the reasoning capabilities of these systems, the bounded-recall problem persists, where procuring all…

2025

Sample Efficient Demonstration Selection for In-Context Learning

ICML 2025poster

The in-context learning paradigm with LLMs has been instrumental in advancing a wide range of natural language processing tasks. The selection of few-shot examples (exemplars / demonstration samples) is essential for constructing effective prompts under context-length budget constraints. In this pap…

2025

Think Right, Not More: Test-Time Scaling for Numerical Claim Verification

EMNLP 2025

Fact-checking real-world claims, particularly numerical claims, is inherently complex that require multistep reasoning and numerical reasoning for verifying diverse aspects of the claim. Although large language models (LLMs) including reasoning models have made tremendous advances, they still fall s

2024

EXPLORA: Efficient Exemplar Subset Selection for Complex Reasoning

EMNLP 2024main

Answering reasoning-based complex questions over text and hybrid sources, including tables, is a challenging task. Recent advances in large language models (LLMs) have enabled in-context learning (ICL), allowing LLMs to acquire proficiency in a specific task using only a few demonstration samples (e…