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Vishvak Murahari

8 accepted papers

2025

PersonaGym: Evaluating Persona Agents and LLMs

EMNLP 2025

Persona agents, which are LLM agents conditioned to act according to an assigned persona, enable contextually rich and user-aligned interactions across domains like education and healthcare.However, evaluating how faithfully these agents adhere to their personas remains a significant challenge, part

Cited by 0SourcePDFScholar
2024

QualEval: Qualitative Evaluation for Model Improvement

NAACL 2024long

Quantitative evaluation metrics have been pivotal in gauging the advancements of AI systems like large language models (LLMs).However, due to the intricate nature of real-world tasks, a single scalar to quantify and compare performance trivializes the fine-grained nuances of model behavior. Addition…

Cited by 3SourcePDFScholar
2023

C-STS: Conditional Semantic Textual Similarity

EMNLP 2023long main

Semantic textual similarity (STS) has been a cornerstone task in NLP that measures the degree of similarity between a pair of sentences, with applications in information retrieval, question answering, and embedding methods. However, it is an inherently ambiguous task, with the sentence similarity de…

Cited by 0SourcecodeScholar
2023

MUX-PLMs: Data Multiplexing for High-throughput Language Models

EMNLP 2023long findings

The widespread adoption of large language models such as ChatGPT and Bard has led to unprecedented demand for these technologies. The burgeoning cost of inference for ever-increasing model sizes coupled with hardware shortages has limited affordable access and poses a pressing need for efficiency ap…

Cited by 0SourcecodeScholar
2023

PruMUX: Augmenting Data Multiplexing with Model Compression

ACL 2023findings

As language models increase in size by the day, methods for efficient inference are critical to leveraging their capabilities for various applications. Prior work has investigated techniques like model pruning, knowledge distillation, and data multiplexing to increase model throughput without sacrif…

2023

Toxicity in chatgpt: Analyzing persona-assigned language models

EMNLP 2023long findings

Large language models (LLMs) have shown incredible capabilities and transcended the natural language processing (NLP) community, with adoption throughout many services like healthcare, therapy, education, and customer service. Since users include people with critical information needs like students…

Cited by 0SourceScholar
2022

DataMUX: Data Multiplexing for Neural Networks

NeurIPS 2022accept

In this paper, we introduce \emph{data multiplexing} (DataMUX), a technique that enables deep neural networks to process multiple inputs simultaneously using a single compact representation. DataMUX demonstrates that neural networks are capable of generating accurate predictions over \emph{mixtures…

2020

Large-scale Pretraining for Visual Dialog: A Simple State-of-the-Art Baseline

ECCV 2020poster

Prior work in visual dialog has focused on training deep neural models on VisDial in isolation. Instead, we present an approach to leverage pretraining on related vision-language datasets before transferring to visual dialog. We adapt the recently proposed ViLBERT model (Lu et al. 2019) for multi-tu…