arXiv:2410.14201cs.HCcs.CV2024-10

构建图文生成公平性评估框架,量化偏见并实现低成本自动化检测。

Text-to-Image Representativity Fairness Evaluation Framework

  • 从多样性、包容性、质量三方面设计人机结合评估方法。
  • 在Stable Diffusion上验证框架有效性,模型方法可替代人工在四类中三类。
  • 建议持续用更包容数据训练,改善少数族裔形象刻板问题。

文本到图像生成系统正快速应用于广告、媒体乃至图像搜索与艺术创作,但其内在的代表性偏见及其在微调后可能引发的社会传播风险令人担忧。为此,本文提出文本到图像(TTI)代表性公平性评估框架,从多样性、包容性与质量三个维度进行评估。针对每个维度,提出并比较了基于人类与模型的方法,以判断其捕捉偏见的能力及相互替代可能性。框架首先根据上下文与敏感属性生成评估提示,再通过所提方法完成评估。在Stable Diffusion上的实验表明,该框架能有效识别偏见;结果还显示,模型方法在四项中的三项可高度替代人工,具备降低成本与实现自动化潜力。研究建议,应持续在更多元包容的数据上对模型进行训练,尤其涵盖印度人、中东人群体,以缓解现有刻板印象与不包容现象。

原文摘要 · Abstract (English)

Text-to-Image generative systems are progressing rapidly to be a source of advertisement and media and could soon serve as image searches or artists. However, there is a significant concern about the representativity bias these models embody and how these biases can propagate in the social fabric after fine-tuning them. Therefore, continuously monitoring and evaluating these models for fairness is important. To address this issue, we propose Text-to-Image (TTI) Representativity Fairness Evaluation Framework. In this framework, we evaluate three aspects of a TTI system; diversity, inclusion, and quality. For each aspect, human-based and model-based approaches are proposed and evaluated for their ability to capture the bias and whether they can substitute each other. The framework starts by suggesting the prompts for generating the images for the evaluation based on the context and the sensitive attributes under study. Then the three aspects are evaluated using the proposed approaches. Based on the evaluation, a decision is made regarding the representativity bias within the TTI system. The evaluation of our framework on Stable Diffusion shows that the framework can effectively capture the bias in TTI systems. The results also confirm that our proposed model based-approaches can substitute human-based approaches in three out of four components with high correlation, which could potentially reduce costs and automate the process. The study suggests that continual learning of the model on more inclusive data across disadvantaged minorities such as Indians and Middle Easterners is essential to mitigate current stereotyping and lack of inclusiveness.

图文生成公平性评估框架偏见检测

Thank you to arXiv for use of its open access interoperability. PaperDance 不是 arXiv 官方产品;中文卡片由大模型生成,请以原文为准。