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Brihi Joshi

9 accepted papers

2025

Amulet: Putting Complex Multi-Turn Conversations on the Stand with LLM Juries

EMNLP 2025

Today, large language models are widely used as judges to evaluate responses from other language models. Hence, it is imperative to benchmark and improve these LLM-judges on real-world language model usage: a typical human-assistant conversation is lengthy, and shows significant diversity in topics,

2025

ELI-Why: Evaluating the Pedagogical Utility of Language Model Explanations

ACL 2025finding

Language models today are widely used in education, yet their ability to tailor responses for learners with varied informational needs and knowledge backgrounds remains under-explored. To this end, we introduce ELI-Why, a benchmark of 13.4K “Why” questions to evaluate the pedagogical capabilities of…

Cited by 0SourcePDFScholar
2025

Improving Language Model Personas via Rationalization with Psychological Scaffolds

EMNLP 2025

Language models prompted with a user description or persona have been used to predict the user’s preferences and opinions. However, existing approaches to building personas mostly rely on a user’s demographic attributes and/or prior judgments, but not on any underlying reasoning behind a user’s judg

2024

OATH-Frames: Characterizing Online Attitudes Towards Homelessness with LLM Assistants

EMNLP 2024main

Warning: Contents of this paper may be upsetting.Public attitudes towards key societal issues, expressed on online media, are of immense value in policy and reform efforts, yet challenging to understand at scale. We study one such social issue: homelessness in the U.S., by leveraging the remarkable…

Cited by 1SourcePDFScholar
2024

Tailoring Self-Rationalizers with Multi-Reward Distillation

ICLR 2024poster

Large language models (LMs) are capable of generating free-text rationales to aid question answering. However, prior work 1) suggests that useful self-rationalization is emergent only at significant scales (e.g., 175B parameter GPT-3); and 2) focuses largely on downstream performance, ignoring the s…

2023

Are Machine Rationales (Not) Useful to Humans? Measuring and Improving Human Utility of Free-text Rationales

ACL 2023long

Among the remarkable emergent capabilities of large language models (LMs) is free-text rationalization; beyond certain scale, large LMs are capable of generating seemingly useful rationalizations, which in turn, can dramatically enhance their performances on leaderboards. This phenomenon raises a qu…

2022

ER-Test: Evaluating Explanation Regularization Methods for Language Models

EMNLP 2022finding

By explaining how humans would solve a given task, human rationales can provide strong learning signal for neural language models (NLMs). Explanation regularization (ER) aims to improve NLM generalization by pushing the NLM’s machine rationales (Which input tokens did the NLM focus on?) to align wit…

2020

The Devil is in the Details: Evaluating Limitations of Transformer-based Methods for Granular Tasks

COLING 2020main

Contextual embeddings derived from transformer-based neural language models have shown state-of-the-art performance for various tasks such as question answering, sentiment analysis, and textual similarity in recent years. Extensive work shows how accurately such models can represent abstract, semant…