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Tanwi Mallick

5 accepted papers

2026

LUMINA: Detecting Hallucinations in RAG System with Context–Knowledge Signals

ICLR 2026poster

Retrieval-Augmented Generation (RAG) aims to mitigate hallucinations in large language models (LLMs) by grounding responses in retrieved documents. Yet, RAG-based LLMs still hallucinate even when provided with correct and sufficient context. A growing line of work suggests that this stems from an im…

Cited by 0SourcecodeScholar
2026

Statistical Early Stopping for Reasoning Models

ICML 2026poster

While LLMs have seen substantial improvement in reasoning capabilities, they also sometimes overthink, generating unnecessary reasoning steps, particularly under uncertainty, given ill-posed or ambiguous queries. We introduce statistically principled early stopping methods that monitor uncertainty s…

Cited by 0SourceScholar
2025

Towards Rationality in Language and Multimodal Agents: A Survey

NAACL 2025long

This work discusses how to build more rational language and multimodal agents and what criteria define rationality in intelligent systems.Rationality is the quality of being guided by reason, characterized by decision-making that aligns with evidence and logical principles. It plays a crucial role i…

2024

A Peek into Token Bias: Large Language Models Are Not Yet Genuine Reasoners

EMNLP 2024main

This study introduces a hypothesis-testing framework to assess whether large language models (LLMs) possess genuine reasoning abilities or primarily depend on token bias. We go beyond evaluating LLMs on accuracy; rather, we aim to investigate their token bias in solving logical reasoning tasks. Spec…

2024

Wavelet-Inspired Multiscale Graph Convolutional Recurrent Network for Traffic Forecasting

ICASSP 2024accepted

Traffic forecasting is the foundation for intelligent transportation systems. Spatiotemporal graph neural networks have demonstrated state-of-the-art performance in traffic forecasting. However, these methods do not explicitly model some of the natural characteristics in traffic data, such as the mu…

Cited by 0SourceScholar