activity
20232026
most citedUncertainty-Based Abstention in LLMs Improves Safety and Reduces Hallucinations

2 citations · 3 across the 5 of their papers we have counts for

collaborators

6 papers

cs.LG2026

Learning to Reason in 13 Parameters

John X. Morris, Niloofar Mireshghallah, Mark Ibrahim +1

Recent research has shown that language models can learn to \textit{reason}, often via reinforcement learning. Some work even trains low-rank parameterizations for reasoning, but c…

cs.LG2026

ReasonCACHE: Teaching LLMs To Reason Without Weight Updates

Sharut Gupta, Phillip Isola, Stefanie Jegelka +4

Can Large language models (LLMs) learn to reason without any weight update and only through in-context learning (ICL)? ICL is strikingly sample-efficient, often learning from only…

cs.AI2025

AbstentionBench: Reasoning LLMs Fail on Unanswerable Questions

Polina Kirichenko, Mark Ibrahim, Kamalika Chaudhuri +1

For Large Language Models (LLMs) to be reliably deployed in both everyday and high-stakes domains, knowing when not to answer is equally critical as answering correctly. Real-world…

cs.CL2025

TituLLMs: A Family of Bangla LLMs with Comprehensive Benchmarking

Shahriar Kabir Nahin, Rabindra Nath Nandi, Sagor Sarker +7

In this paper, we present TituLLMs, the first large pretrained Bangla LLMs, available in 1b and 3b parameter sizes. Due to computational constraints during both training and infere…

cs.CL2024★ 2 cited

Uncertainty-Based Abstention in LLMs Improves Safety and Reduces Hallucinations

Christian Tomani, Kamalika Chaudhuri, Ivan Evtimov +2

A major barrier towards the practical deployment of large language models (LLMs) is their lack of reliability. Three situations where this is particularly apparent are correctness,…

cs.CL2023★ 1 cited

WorldSense: A Synthetic Benchmark for Grounded Reasoning in Large Language Models

Youssef Benchekroun, Megi Dervishi, Mark Ibrahim +7

We propose WorldSense, a benchmark designed to assess the extent to which LLMs are consistently able to sustain tacit world models, by testing how they draw simple inferences from…