collaborators

9 papers

cs.CL2026

Don't `Well, Actually' Me Unless You Know What You're Talking About: Weak Presupposition Verification Degrades General QA Performance

Shenran Wang, Vered Shwartz, Hila Gonen

False-presupposition QA (FPQA) tests LLMs on their ability to identify false presuppositions in questions and abstain or correct them rather than reinforcing false assumptions. The…

cs.CL2026

PhantomBench: Benchmarking the Non-existential Threat of Language Models

Haeji Jung, Hila Gonen

Hallucinations, where language models (LMs) generate factually ungrounded responses, pose serious risks, as users tend to blindly rely on them. This is particularly concerning in h…

cs.CL2026

Global PIQA: Evaluating Commonsense Reasoning Across 100+ Languages and Cultures

Tyler A. Chang, Catherine Arnett, Abdelrahman Sadallah +377

To date, there exist almost no culturally-specific evaluation benchmarks for large language models (LLMs) that cover a large number of languages and cultures. In this paper, we pre…

cs.CL2026

Rewriting History: A Recipe for Interventional Analyses to Study Data Effects on Model Behavior

Rahul Nadkarni, Yanai Elazar, Hila Gonen +1

We present an experimental recipe for studying the relationship between training data and language model (LM) behavior. We outline steps for intervening on data batches -- i.e., ``…

cs.CL2026

Universal NER v2: Towards a Massively Multilingual Named Entity Recognition Benchmark

Terra Blevins, Stephen Mayhew, Marek Å uppa +11

While multilingual language models promise to bring the benefits of LLMs to speakers of many languages, gold-standard evaluation benchmarks in most languages to interrogate these a…

cs.CL2025

OMNIGUARD: An Efficient Approach for AI Safety Moderation Across Languages and Modalities

Sahil Verma, Keegan Hines, Jeff Bilmes +4

The emerging capabilities of large language models (LLMs) have sparked concerns about their immediate potential for harmful misuse. The core approach to mitigate these concerns is…