How Do Generative Models Draw a Software Engineer? A Case Study on Stable Diffusion Bias

• URL: http://arxiv.org/abs/2501.09014v1
• Date: Wed, 15 Jan 2025 18:57:17 GMT
• Title: How Do Generative Models Draw a Software Engineer? A Case Study on Stable Diffusion Bias
• Authors: Tosin Fadahunsi, Giordano d'Aloisio, Antinisca Di Marco, Federica Sarro,
• Abstract summary: We evaluate the gender and ethnicity bias exposed by three versions of the Stable Diffusion model towards software engineering tasks. Results show how all models are significantly biased towards male figures when representing software engineers. However, all models significantly under-represent Black and Arab figures, regardless of the prompt style used.
• Score: 9.574645433491225
• License:
• Abstract: Generative models are nowadays widely used to generate graphical content used for multiple purposes, e.g. web, art, advertisement. However, it has been shown that the images generated by these models could reinforce societal biases already existing in specific contexts. In this paper, we focus on understanding if this is the case when one generates images related to various software engineering tasks. In fact, the Software Engineering (SE) community is not immune from gender and ethnicity disparities, which could be amplified by the use of these models. Hence, if used without consciousness, artificially generated images could reinforce these biases in the SE domain. Specifically, we perform an extensive empirical evaluation of the gender and ethnicity bias exposed by three versions of the Stable Diffusion (SD) model (a very popular open-source text-to-image model) - SD 2, SD XL, and SD 3 - towards SE tasks. We obtain 6,720 images by feeding each model with two sets of prompts describing different software-related tasks: one set includes the Software Engineer keyword, and one set does not include any specification of the person performing the task. Next, we evaluate the gender and ethnicity disparities in the generated images. Results show how all models are significantly biased towards male figures when representing software engineers. On the contrary, while SD 2 and SD XL are strongly biased towards White figures, SD 3 is slightly more biased towards Asian figures. Nevertheless, all models significantly under-represent Black and Arab figures, regardless of the prompt style used. The results of our analysis highlight severe concerns about adopting those models to generate content for SE tasks and open the field for future research on bias mitigation in this context.

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