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Evaluation of large language model (LLM) outputs requires users to make critical judgments about the best outputs across various configurations. This process is costly and takes time given the large amounts of data. LLMs are increasingly…

The $\textit{LLM-as-a-judge}$ paradigm has become the operational backbone of automated AI evaluation pipelines, yet rests on an unverified assumption: that judges evaluate text strictly on its semantic content, impervious to surrounding…

Artificial Intelligence · Computer Science 2026-04-17 Manan Gupta , Inderjeet Nair , Lu Wang , Dhruv Kumar

Prompting large language models (LLMs) to evaluate generated text, known as LLM-as-a-judge, has become a standard evaluation approach in natural language generation (NLG), but is primarily used as a quantitative tool, i.e. with numerical…

The potential of using Large Language Models (LLMs) themselves to evaluate LLM outputs offers a promising method for assessing model performance across various contexts. Previous research indicates that LLM-as-a-judge exhibits a strong…

Human-Computer Interaction · Computer Science 2024-10-29 Annalisa Szymanski , Noah Ziems , Heather A. Eicher-Miller , Toby Jia-Jun Li , Meng Jiang , Ronald A. Metoyer

LLM-as-a-Judge has emerged as a promising alternative to human evaluators across various tasks, yet inherent biases - particularly position bias, the tendency to favor solutions based on their position within the prompt - compromise its…

Computation and Language · Computer Science 2025-11-12 Lin Shi , Chiyu Ma , Wenhua Liang , Xingjian Diao , Weicheng Ma , Soroush Vosoughi

Are large language models (LLMs) biased in favor of communications produced by LLMs, leading to possible antihuman discrimination? Using a classical experimental design inspired by employment discrimination studies, we tested widely used…

Computation and Language · Computer Science 2025-08-12 Walter Laurito , Benjamin Davis , Peli Grietzer , Tomáš Gavenčiak , Ada Böhm , Jan Kulveit

The rapid rise in popularity of Large Language Models (LLMs) with emerging capabilities has spurred public curiosity to evaluate and compare different LLMs, leading many researchers to propose their own LLM benchmarks. Noticing preliminary…

Artificial Intelligence · Computer Science 2025-05-15 Timothy R. McIntosh , Teo Susnjak , Nalin Arachchilage , Tong Liu , Paul Watters , Malka N. Halgamuge

Large language models (LLMs) are known to produce varying responses depending on prompt phrasing, indicating that subtle guidance in phrasing can steer their answers. However, the impact of this framing bias on LLM-based evaluation, where…

Computation and Language · Computer Science 2026-01-21 Yerin Hwang , Dongryeol Lee , Taegwan Kang , Minwoo Lee , Kyomin Jung

Large Language Models (LLMs) are increasingly used in tasks such as psychological text analysis and decision-making in automated workflows. However, their reliability remains a concern due to potential biases inherited from their training…

Computation and Language · Computer Science 2025-04-29 Yi-Long Lu , Chunhui Zhang , Wei Wang

Large Language Models (LLMs) are transforming human decision-making by acting as cognitive collaborators. Yet, this promise comes with a paradox: while LLMs can improve accuracy, they may also erode independent reasoning, promote…

Cryptography and Security · Computer Science 2025-09-09 Irdin Pekaric , Philipp Zech , Tom Mattson

Large Language Models (LLMs) are increasingly used to evaluate information retrieval (IR) systems, generating relevance judgments traditionally made by human assessors. Recent empirical studies suggest that LLM-based evaluations often align…

Information Retrieval · Computer Science 2026-01-21 Laura Dietz , Oleg Zendel , Peter Bailey , Charles Clarke , Ellese Cotterill , Jeff Dalton , Faegheh Hasibi , Mark Sanderson , Nick Craswell

As large language models (LLMs) grow more capable, they face increasingly diverse and complex tasks, making reliable evaluation challenging. The paradigm of LLMs as judges has emerged as a scalable solution, yet prior work primarily focuses…

Computation and Language · Computer Science 2025-11-03 Weiyuan Li , Xintao Wang , Siyu Yuan , Rui Xu , Jiangjie Chen , Qingqing Dong , Yanghua Xiao , Deqing Yang

Large language models (LLMs) are widely used as scalable evaluators of model responses in lieu of human annotators. However, imperfect sensitivity and specificity of the LLM judges induce bias in naive evaluation scores. We propose a simple…

Machine Learning · Computer Science 2026-02-10 Chungpa Lee , Thomas Zeng , Jongwon Jeong , Jy-yong Sohn , Kangwook Lee

Large language models (LLMs) can act as evaluators, a role studied by methods like LLM-as-a-Judge and fine-tuned judging LLMs. In the field of education, LLMs have been studied as assistant tools for students and teachers. Our research…

Computation and Language · Computer Science 2025-09-26 Valeria Ramirez-Garcia , David de-Fitero-Dominguez , Antonio Garcia-Cabot , Eva Garcia-Lopez

Clinical communication skills are critical in medical education, and practicing and assessing clinical communication skills on a scale is challenging. Although LLM-powered clinical scenario simulations have shown promise in enhancing…

Artificial Intelligence · Computer Science 2025-06-16 Weibing Zheng , Laurah Turner , Jess Kropczynski , Murat Ozer , Tri Nguyen , Shane Halse

Extractive reading comprehension question answering (QA) datasets are typically evaluated using Exact Match (EM) and F1-score, but these metrics often fail to fully capture model performance. With the success of large language models…

Computation and Language · Computer Science 2025-04-23 Xanh Ho , Jiahao Huang , Florian Boudin , Akiko Aizawa

Large Language Models (LLMs) are increasingly used in decision-making, yet their susceptibility to cognitive biases remains a pressing challenge. This study explores how personality traits influence these biases and evaluates the…

Artificial Intelligence · Computer Science 2025-02-21 Jiangen He , Jiqun Liu

Advancements in Large Language Models (LLMs) have increased the performance of different natural language understanding as well as generation tasks. Although LLMs have breached the state-of-the-art performance in various tasks, they often…

Computation and Language · Computer Science 2025-05-28 Charaka Vinayak Kumar , Ashok Urlana , Gopichand Kanumolu , Bala Mallikarjunarao Garlapati , Pruthwik Mishra

As large language models take on growing roles as automated evaluators in practical settings, a critical question arises: Can individuals persuade an LLM judge to assign unfairly high scores? This study is the first to reveal that…

Computation and Language · Computer Science 2025-08-12 Yerin Hwang , Dongryeol Lee , Taegwan Kang , Yongil Kim , Kyomin Jung

To reduce the need for human annotations, large language models (LLMs) have been proposed as judges of the quality of other candidate models. The performance of LLM judges is typically evaluated by measuring the correlation with human…

Computation and Language · Computer Science 2025-05-14 Andreas Stephan , Dawei Zhu , Matthias Aßenmacher , Xiaoyu Shen , Benjamin Roth