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Multimodal Large Language Models (MLLMs) already achieve state-of-the-art results across a wide range of tasks and modalities. To push their reasoning ability further, recent studies explore advanced prompting schemes and post-training…

Artificial Intelligence · Computer Science 2025-09-09 Zhenyu Pan , Yutong Zhang , Jianshu Zhang , Haoran Lu , Haozheng Luo , Yuwei Han , Philip S. Yu , Manling Li , Han Liu

Drawing on constructs from psychology, prior work has identified a distinction between explicit and implicit bias in large language models (LLMs). While many LLMs undergo post-training alignment and safety procedures to avoid expressions of…

Computers and Society · Computer Science 2026-02-05 Molly Apsel , Michael N. Jones

Language models are prone to dataset biases, known as shortcuts and spurious correlations in data, which often result in performance drop on new data. We present a new debiasing framework called ``FairFlow'' that mitigates dataset biases by…

Machine Learning · Computer Science 2025-03-25 Jiali Cheng , Hadi Amiri

Reward models (RMs) play a central role in aligning large language models (LLMs) with human preferences. However, RMs are often sensitive to spurious features such as response length. Existing inference-time approaches for mitigating these…

Computation and Language · Computer Science 2026-05-01 Kazutoshi Shinoda , Kosuke Nishida , Kyosuke Nishida

Warning: This paper contains examples of stereotypes and biases. Large Language Models (LLMs) exhibit considerable social biases, and various studies have tried to evaluate and mitigate these biases accurately. Previous studies use…

Computation and Language · Computer Science 2024-07-04 Rem Hida , Masahiro Kaneko , Naoaki Okazaki

Large language models (LLMs) increasingly mediate decisions in domains where unfair treatment of demographic groups is unacceptable. Existing work probes when biased outputs appear, but gives little insight into the mechanisms that generate…

Computation and Language · Computer Science 2025-11-04 Tingxu Han , Wei Song , Ziqi Ding , Ziming Li , Chunrong Fang , Yuekang Li , Dongfang Liu , Zhenyu Chen , Zhenting Wang

Large Language Models (LLMs) are prone to inheriting and amplifying societal biases embedded within their training data, potentially reinforcing harmful stereotypes related to gender, occupation, and other sensitive categories. This issue…

Computation and Language · Computer Science 2024-08-28 Atmika Gorti , Manas Gaur , Aman Chadha

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

While large language models (LLMs) are trained to align with human values, their generations may still violate safety constraints. A growing line of work addresses this problem by modifying the model's sampling policy at decoding time using…

Machine Learning · Computer Science 2026-05-15 Bat-Sheva Einbinder , Hen Davidov , Yee Whye Teh , Yarin Gal , Yaniv Romano

Although Large Language Models (LLMs) demonstrate remarkable reasoning capabilities, inherent social biases often cascade throughout the Chain-of-Thought (CoT) process, leading to continuous "Bias Propagation". Existing debiasing methods…

Computation and Language · Computer Science 2026-05-12 Xuan Feng , Shuai Zhao , Luwei Xiao , Tianlong Gu , Bo An

Finetuning on narrow domains has become an essential tool to adapt Large Language Models (LLMs) to specific tasks and to create models with known unusual properties that are useful for research. We show that narrow finetuning creates strong…

Computation and Language · Computer Science 2026-03-06 Julian Minder , Clément Dumas , Stewart Slocum , Helena Casademunt , Cameron Holmes , Robert West , Neel Nanda

Large language models (LLMs) have demonstrated impressive capabilities in various tasks using the in-context learning (ICL) paradigm. However, their effectiveness is often compromised by inherent bias, leading to prompt brittleness, i.e.,…

Computation and Language · Computer Science 2024-12-13 Hanzhang Zhou , Zijian Feng , Zixiao Zhu , Junlang Qian , Kezhi Mao

Several works have proven that finetuning is an applicable approach for debiasing contextualized word embeddings. Similarly, discrete prompts with semantic meanings have shown to be effective in debiasing tasks. With unfixed mathematical…

Computation and Language · Computer Science 2025-05-27 Ke Yang , Charles Yu , Yi Fung , Manling Li , Heng Ji

Ensuring fairness across demographic groups in medical diagnosis is essential for equitable healthcare, particularly under distribution shifts caused by variations in imaging equipment and clinical practice. Vision-language models (VLMs)…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Yuexuan Xia , Benteng Ma , Jiang He , Zhiyong Wang , Qi Dou , Yong Xia

Large language models (LLMs) have achieved impressive performance on various natural language generation tasks. Nonetheless, they suffer from generating negative and harmful contents that are biased against certain demographic groups (e.g.,…

Machine Learning · Computer Science 2024-06-05 Tianci Liu , Haoyu Wang , Shiyang Wang , Yu Cheng , Jing Gao

Prompting large language models has gained immense popularity in recent years due to the advantage of producing good results even without the need for labelled data. However, this requires prompt tuning to get optimal prompts that lead to…

Computation and Language · Computer Science 2024-03-06 Jacob-Junqi Tian , David Emerson , Sevil Zanjani Miyandoab , Deval Pandya , Laleh Seyyed-Kalantari , Faiza Khan Khattak

Pre-trained large language models (LLMs) reflect the inherent social biases of their training corpus. Many methods have been proposed to mitigate this issue, but they often fail to debias or they sacrifice model accuracy. We use…

Computation and Language · Computer Science 2023-11-01 Li S. Yifei , Lyle Ungar , João Sedoc

Large language models (LLMs) are increasingly utilized in various complex reasoning tasks due to their excellent instruction following capability. However, the model's performance is highly dependent on the open-ended characteristics of the…

Computation and Language · Computer Science 2026-04-28 Zhenzhen Huang , Chaoning Zhang , Fachrina Dewi Puspitasari , Jiaquan Zhang , Yitian Zhou , Shuxu Chen , Yang Yang

Steering language model generation toward desired textual properties is essential for practical deployment, and inference-time methods are particularly appealing because they enable controllable generation without retraining. Recent work…

Computation and Language · Computer Science 2026-05-29 Hyeseon An , Yo-Sub Han

Machine learning systems produce biased results towards certain demographic groups, known as the fairness problem. Recent approaches to tackle this problem learn a latent code (i.e., representation) through disentangled representation…

Machine Learning · Computer Science 2023-09-06 Jindi Zhang , Luning Wang , Dan Su , Yongxiang Huang , Caleb Chen Cao , Lei Chen