Challenge: Traditional approaches only target labeled attributes, ignoring biases from unlabeled ones.
Approach: They propose a method that ensures protected group independence from all attributes and mitigates inpainting biases through data filtering.
Outcome: The proposed approach achieves an average reduction of 46.1% in leakage-based bias metrics for multi-label classification and 74.8% for image captioning.

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A Prompt Array Keeps the Bias Away: Debiasing Vision-Language Models with Adversarial Learning (2022.aacl-main)

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Challenge: Large-scale, pretrained vision-language models are growing in popularity due to impressive performance on downstream tasks with minimal finetuning.
Approach: They propose to apply ranking metrics to image-text representations to investigate bias measures and debiasing methods to reduce various bias measures.
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Leveraging Prototypical Representations for Mitigating Social Bias without Demographic Information (2024.naacl-short)

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Challenge: Existing approaches to mitigate social biases require explicit annotation of demographic information for each sample.
Approach: They propose a method that leverages predefined demographic texts and incorporates a regularization term during the fine-tuning process to mitigate bias in language models.
Outcome: The proposed method outperforms debiasing methods with limited demographic-annotated data.
Unlabeled Debiasing in Downstream Tasks via Class-wise Low Variance Regularization (2024.emnlp-main)

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Challenge: Existing methods for debiasing depend on attribute labels and target attributes.
Approach: They propose a method that uses class-wise variance of embeddings to reduce the effects of debiasing on a downstream task.
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Don’t Just Clean It, Proxy Clean It: Mitigating Bias by Proxy in Pre-Trained Models (2022.findings-emnlp)

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Challenge: Transformer-based pre-trained models can encode societal biases in their contextual representations and in downstream predictions when fine-tuned on task-specific data.
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More than Minorities and Majorities: Understanding Multilateral Bias in Language Generation (2024.findings-acl)

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Challenge: Existing studies on bias dataset construction and mitigation focus on one demographic group . in real-world applications, there are more than two demographic groups at risk of the same bias.
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He is very intelligent, she is very beautiful? On Mitigating Social Biases in Language Modelling and Generation (2021.findings-acl)

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Challenge: Existing studies have focused on mitigating social biases in context-free representations, with recent shift to contextual ones.
Approach: They propose an approach to mitigate social biases in a large pre-trained contextual language model . they propose lexical co-occurrence-based bias penalization in the decoder units .
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Self-Debiasing Large Language Models: Zero-Shot Recognition and Reduction of Stereotypes (2025.naacl-short)

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Challenge: Large language models exhibit harmful social biases, but they are often difficult to train and modify.
Approach: They leverage the zero-shot capabilities of large language models to reduce stereotyping . they introduce a technique called zero- shot self-debiasing to reduce bias .
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Towards Controllable Biases in Language Generation (2020.findings-emnlp)

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Challenge: a new method to induce societal biases in natural language generation is being developed . a method to equalize the amount of biased text across demographics is effective .
Approach: They propose a method to induce societal biases in natural language generation by using demographic inequalities.
Outcome: The proposed method is effective at equalizing biases across demographics while generating less negatively biased text overall.
Balancing out Bias: Achieving Fairness Through Balanced Training (2022.emnlp-main)

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Challenge: Existing approaches to reducing group bias do not account for correlations between author demographics and linguistic variables, limiting their effectiveness.
Approach: They extend a method for countering group bias using balanced training by balancing each demographic group in training and using protected attributes as input.
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Modular and On-demand Bias Mitigation with Attribute-Removal Subnetworks (2023.findings-acl)

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Challenge: Existing studies show that pre-trained language models can be used to mitigate societal biases and stereotypes.
Approach: They propose a modular bias mitigation approach that integrates debiasing modules into the core model on-demand at inference time.
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