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Large Language Models (LLMs) push the bound-aries in natural language processing and generative AI, driving progress across various aspects of modern society. Unfortunately, the pervasive issue of bias in LLMs responses (i.e., predictions)…

Computation and Language · Computer Science 2025-05-20 Isabela Pereira Gregio , Ian Pons , Anna Helena Reali Costa , Artur Jordão

Visual language models (VLMs) have shown remarkable capabilities in multimodal tasks but face challenges in maintaining fairness across demographic groups, particularly when deployed in federated learning (FL) environments. This paper…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Chaomeng Chen , Zitong Yu , Junhao Dong , Sen Su , Linlin Shen , Shutao Xia , Xiaochun Cao

The pursuit of fairness in machine learning (ML), ensuring that the models do not exhibit biases toward protected demographic groups, typically results in a compromise scenario. This compromise can be explained by a Pareto frontier where…

Machine Learning · Computer Science 2024-11-11 Jinlong Pang , Jialu Wang , Zhaowei Zhu , Yuanshun Yao , Chen Qian , Yang Liu

Retrained large language models (LLMs) have become extensively used across various sub-disciplines of natural language processing (NLP). In NLP, text classification problems have garnered considerable focus, but still faced with some…

Computation and Language · Computer Science 2023-12-05 Zhiqiang Wang , Yiran Pang , Yanbin Lin

Large Language Models (LLMs) have shown powerful performance and development prospects and are widely deployed in the real world. However, LLMs can capture social biases from unprocessed training data and propagate the biases to downstream…

Computation and Language · Computer Science 2024-02-22 Yingji Li , Mengnan Du , Rui Song , Xin Wang , Ying Wang

Large Language Models (LLMs) are increasingly applied in recommender systems aimed at both individuals and groups. Previously, Group Recommender Systems (GRS) often used social choice-based aggregation strategies to derive a single…

Computation and Language · Computer Science 2025-05-09 Cedric Waterschoot , Nava Tintarev , Francesco Barile

Large Language Models (LLMs) have introduced new capabilities to recommender systems, enabling dynamic, context-aware, and conversational recommendations. However, LLM-based recommender systems inherit and may amplify social biases embedded…

Machine Learning · Computer Science 2026-03-26 Nan Cui , Wendy Hui Wang , Yue Ning

Large Language Models (LLMs) have revolutionized artificial intelligence, demonstrating remarkable computational power and linguistic capabilities. However, these models are inherently prone to various biases stemming from their training…

Computation and Language · Computer Science 2025-02-14 Riccardo Cantini , Giada Cosenza , Alessio Orsino , Domenico Talia

The widespread adoption of large language models (LLMs) underscores the urgent need to ensure their fairness. However, LLMs frequently present dominant viewpoints while ignoring alternative perspectives from minority parties, resulting in…

Computation and Language · Computer Science 2024-02-20 Tianlin Li , Xiaoyu Zhang , Chao Du , Tianyu Pang , Qian Liu , Qing Guo , Chao Shen , Yang Liu

Algorithmic decisions are now being used on a daily basis, and based on Machine Learning (ML) processes that may be complex and biased. This raises several concerns given the critical impact that biased decisions may have on individuals or…

Machine Learning · Computer Science 2020-11-03 Guilherme Alves , Vaishnavi Bhargava , Miguel Couceiro , Amedeo Napoli

Recent studies highlight the effectiveness of using in-context learning (ICL) to steer large language models (LLMs) in processing tabular data, a challenging task given the structured nature of such data. Despite advancements in…

Machine Learning · Computer Science 2024-08-20 Jingyu Hu , Weiru Liu , Mengnan Du

Research to improve Automated Short Answer Grading has recently focused on Large Language Models (LLMs) with prompt engineering and no- or few-shot prompting to achieve best results. This is in contrast to the fine-tuning approach, which…

Machine Learning · Computer Science 2025-08-07 Joel Walsh , Siddarth Mamidanna , Benjamin Nye , Mark Core , Daniel Auerbach

Fine-tuning Large Language Models (LLMs) typically involves either full fine-tuning, which updates all model parameters, or Parameter-Efficient Fine-Tuning (PEFT), which adjusts a small subset of parameters. However, both approaches have…

Artificial Intelligence · Computer Science 2026-04-14 Shaocong Ma , Peiran Yu , Heng Huang

Recent breakthroughs in large language models (LLMs) have opened the door to in-depth investigation of their potential in tabular data modeling. However, effectively utilizing advanced LLMs in few-shot and even zero-shot scenarios is still…

Machine Learning · Computer Science 2025-08-14 Peng Wang , Dongsheng Wang , He Zhao , Hangting Ye , Dandan Guo , Yi Chang

LLMs are increasingly being considered for prediction tasks in high-stakes social service settings, but their algorithmic fairness properties in this context are poorly understood. In this short technical report, we audit the algorithmic…

Computers and Society · Computer Science 2026-04-22 Xiao Qi Lee , Ezinne Nwankwo , Angela Zhou

Fair prediction across protected groups is an important constraint for many federated learning applications. However, prior work studying group fair federated learning lacks formal convergence or fairness guarantees. In this work we propose…

Machine Learning · Computer Science 2022-10-14 Shengyuan Hu , Zhiwei Steven Wu , Virginia Smith

Large Language Models (LLMs) have emerged as powerful tools for passage reranking in information retrieval, leveraging their superior reasoning capabilities to address the limitations of conventional models on complex queries. However,…

Information Retrieval · Computer Science 2026-05-01 Meixiu Long , Duolin Sun , Dan Yang , Yihan Jiao , Lei Liu , Jiahai Wang , BinBin Hu , Yue Shen , Jie Feng , Zhehao Tan , Junjie Wang , Lianzhen Zhong , Jian Wang , Peng Wei , Jinjie Gu

Large language models (LLMs) are increasingly used to automate feature engineering in tabular learning. Given task-specific information, LLMs can propose diverse feature transformation operations to enhance downstream model performance.…

Machine Learning · Computer Science 2026-01-30 Zhuoyan Li , Aditya Bansal , Jinzhao Li , Shishuang He , Zhuoran Lu , Mutian Zhang , Qin Liu , Yiwei Yang , Swati Jain , Ming Yin , Yunyao Li

We introduce \emph{Metric-Fair Prompting}, a fairness-aware prompting framework that guides large language models (LLMs) to make decisions under metric-fairness constraints. In the application of multiple-choice medical question answering,…

Computation and Language · Computer Science 2025-12-09 Jing Wang , Jie Shen , Xing Niu , Tong Zhang , Jeremy Weiss

Effective machine learning models can automatically learn useful information from a large quantity of data and provide decisions in a high accuracy. These models may, however, lead to unfair predictions in certain sense among the population…

Machine Learning · Computer Science 2020-06-19 Mingliang Chen , Min Wu