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Large language models (LLMs) are increasingly deployed in real-world systems, yet they can produce toxic or biased outputs that undermine safety and trust. Post-hoc model repair provides a practical remedy, but the high cost of parameter…

Machine Learning · Computer Science 2025-10-24 Xuran Li , Jingyi Wang

Large language models (LLMs) are powerful zero- and few-shot learners. However, when predicting over a set of candidate options, LLMs suffer from label biases, and existing calibration methods overlook biases arising from multi-token class…

Computation and Language · Computer Science 2025-11-19 Mario Sanz-Guerrero , Katharina von der Wense

While the real world is inherently stochastic, Large Language Models (LLMs) are predominantly evaluated on single-round inference against fixed ground truths. In this work, we shift the lens to distribution alignment: assessing whether…

Computation and Language · Computer Science 2026-04-08 Yanbei Jiang , Amr Keleg , Ryandito Diandaru , Jey Han Lau , Lea Frermann , Biaoyan Fang , Fajri Koto

Recommender systems are crucial for personalizing user experiences but often depend on implicit feedback data, which can be noisy and misleading. Existing denoising studies involve incorporating auxiliary information or learning strategies…

Information Retrieval · Computer Science 2025-02-14 Shuyao Wang , Zhi Zheng , Yongduo Sui , Hui Xiong

Large Language Models (LLMs) like gpt-3.5-turbo-0613 and claude-instant-1.2 are vital in interpreting and executing semantic tasks. Unfortunately, these models' inherent biases adversely affect their performance Particularly affected is…

Computation and Language · Computer Science 2024-06-18 J. E. Eicher , R. F. Irgolič

Large language models (LLMs) have recently shown great advances in a variety of tasks, including natural language understanding and generation. However, their use in high-stakes decision-making scenarios is still limited due to the…

Computation and Language · Computer Science 2023-11-14 Jiefeng Chen , Jinsung Yoon , Sayna Ebrahimi , Sercan O Arik , Tomas Pfister , Somesh Jha

The Large Language Model Bias Index (LLMBI) is a pioneering approach designed to quantify and address biases inherent in large language models (LLMs), such as GPT-4. We recognise the increasing prevalence and impact of LLMs across diverse…

Computation and Language · Computer Science 2024-01-01 Abiodun Finbarrs Oketunji , Muhammad Anas , Deepthi Saina

Model pruning technique is vital for accelerating large language models by reducing their size and computational requirements. However, the generalizability of existing pruning methods across diverse datasets and tasks remains unclear.…

Computation and Language · Computer Science 2025-03-04 Yizhuo Ding , Xinwei Sun , Yanwei Fu , Guosheng Hu

Negative bias refers to the tendency of large language models (LLMs) to excessively generate negative responses in binary decision tasks (e.g., yes-no question answering). Previous research has focused on detecting and addressing negative…

Computation and Language · Computer Science 2025-11-17 Jongyoon Song , Sangwon Yu , Sungroh Yoon

Multiple Choice Question (MCQ) answering is a widely used method for evaluating the performance of Large Language Models (LLMs). However, LLMs often exhibit selection bias in MCQ tasks, where their choices are influenced by factors like…

Computation and Language · Computer Science 2025-12-01 Blessed Guda , Lawrence Francis , Gabrial Zencha Ashungafac , Carlee Joe-Wong , Moise Busogi

This paper investigates the voting behaviors of Large Language Models (LLMs), specifically GPT-4 and LLaMA-2, their biases, and how they align with human voting patterns. Our methodology involved using a dataset from a human voting…

Computation and Language · Computer Science 2024-12-20 Joshua C. Yang , Damian Dailisan , Marcin Korecki , Carina I. Hausladen , Dirk Helbing

Large Language Models (LLMs) have become indispensable across various domains, but this comes at the cost of substantial computational and memory resources. Model pruning addresses this by removing redundant components from models. In…

Computation and Language · Computer Science 2026-01-13 Hao Zhang , Zhibin Zhang , Guangxin Wu , He Chen , Jiafeng Guo , Xueqi Cheng

We explore the internal mechanisms of how bias emerges in large language models (LLMs) when provided with ambiguous comparative prompts: inputs that compare or enforce choosing between two or more entities without providing clear context…

Computation and Language · Computer Science 2024-10-31 Rishabh Adiga , Besmira Nushi , Varun Chandrasekaran

In this paper, we investigate the phenomena of "selection biases" in Large Language Models (LLMs), focusing on problems where models are tasked with choosing the optimal option from an ordered sequence. We delve into biases related to…

Computation and Language · Computer Science 2024-06-06 Sheng-Lun Wei , Cheng-Kuang Wu , Hen-Hsen Huang , Hsin-Hsi Chen

Debiasing language models from unwanted behaviors in Natural Language Understanding tasks is a topic with rapidly increasing interest in the NLP community. Spurious statistical correlations in the data allow models to perform shortcuts and…

Computation and Language · Computer Science 2022-12-06 Johannes Mario Meissner , Saku Sugawara , Akiko Aizawa

Cognitive biases, systematic deviations from rationality in judgment, pose significant challenges in generating objective content. This paper introduces a novel approach for real-time cognitive bias detection in user-generated text using…

Computers and Society · Computer Science 2025-03-10 Frederic Lemieux , Aisha Behr , Clara Kellermann-Bryant , Zaki Mohammed

Large language models (LLMs) have demonstrated impressive capabilities across a wide range of natural language processing tasks. However, their outputs often exhibit social biases, raising fairness concerns. Existing debiasing methods, such…

Computation and Language · Computer Science 2026-02-05 Yujie Lin , Kunquan Li , Yixuan Liao , Xiaoxin Chen , Jinsong Su

As search depth increases in autonomous reasoning and embodied planning, candidate action spaces expand exponentially, often exhausting computational budgets. While heuristic pruning is a critical countermeasure, existing approaches lack…

Machine Learning · Computer Science 2026-05-12 Tianhao Qian

Bayesian Neural Networks (BNNs) are trained to optimize an entire distribution over their weights instead of a single set, having significant advantages in terms of, e.g., interpretability, multi-task learning, and calibration. Because of…

Machine Learning · Computer Science 2022-10-07 Jary Pomponi , Simone Scardapane , Aurelio Uncini

Large language models (LLMs) have achieved remarkable performance on a wide range of tasks, hindering real-world deployment due to their massive size. Existing pruning methods (e.g., Wanda) tailored for LLMs rely heavily on manual design…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Haidong Kang , Lihong Lin , Enneng Yang , Hongning Dai , Hao Wang