Queens are Powerful too: Mitigating Gender Bias in Dialogue Generation
Written for the Research library (claude-opus-5-5) from the paper text. Original — aclanthology.org/2020.emnlp-main.656.pdf
Summary
The paper looks at how gender bias in dialogue training data appears in generative chit-chat models and is often strengthened by them. The authors counted gendered words in six dialogue datasets and chose LIGHT, a crowdsourced fantasy text-adventure corpus with the strongest male skew, as their testbed. In LIGHT, the stereotyped character names and personas seem to have primed crowdworkers to write stereotyped dialogues. The authors tested three mitigation strategies:
- Counterfactual Data Augmentation (CDA), which swaps gendered words.
- Positive-Bias Data collection, which gathers new gender-balanced characters, personas and dialogues from crowdworkers.
- Bias Controlled training, which conditions generation on control bins for gendered-word content.
A Transformer model using all three methods (ALL) produced more balanced and less gendered output than the baseline. It also produced fewer offensive responses. In human evaluations, the speaker's gender was harder to guess from its responses, and its engagingness was unchanged. The work matters because it shows that dialogue debiasing can work without making responses bland. It also argues that bias is best addressed early, at the data collection stage.
Key points
- Six datasets were compared by % male bias, the share of male words among all gendered words. LIGHT scored highest (73.4%), Reddit was close behind (69.76%), and ConvAI2 was nearly balanced (50.05%). The counts used the gendered word list of Zhao et al. (2018b).
- The ALL model combined CDA, Positive-Bias Data and Bias Controlled training, and the paper reports that the methods work best together.
- A Transformer-based safety classifier flagged 10.37% of ALL responses as offensive. The rates were 14.25% for the baseline and 13.0% for the human gold responses.
- The human evaluation used Acute-Eval with 100 conversations per method, comparing the ALL model in the gender-neutral F0M0 bin against the baseline. Guessing speaker gender was significantly harder for ALL (p < 0.01), while engagingness was equal.
- The models and code are released through ParlAI (parl.ai/projects/genderation_bias).
Cited by
- Language (Technology) is Power: A Critical Survey of ``Bias'' in NLP
- Toxicity in chatgpt: Analyzing persona-assigned language models
- Bias and Fairness in Large Language Models: A Survey
- Red Teaming Language Models to Reduce Harms: Methods, Scaling Behaviors, and Lessons Learned
- SODA: Million-scale Dialogue Distillation with Social Commonsense Contextualization
- GeDi: Generative Discriminator Guided Sequence Generation
- Towards Understanding and Mitigating Social Biases in Language Models
- TruthfulQA: Measuring How Models Mimic Human Falsehoods
- Recipes for Building an Open-Domain Chatbot
- Societal Biases in Language Generation: Progress and Challenges
- BlenderBot 3: a deployed conversational agent that continually learns to responsibly engage
- Beyond the Imitation Game: Quantifying and extrapolating the capabilities of language models
- LaMDA: Language Models for Dialog Applications
Cite
@inproceedings{dinan2020queens,
title = {{Queens are Powerful too: Mitigating Gender Bias in Dialogue Generation}},
author = {Dinan, Emily and Fan, Angela and Williams, Adina and Urbanek, Jack and Kiela, Douwe and Weston, Jason},
booktitle = {Proceedings of the 2020 Conference on Empirical Methods in Natural Language Processing (EMNLP)},
year = {2020},
doi = {10.18653/v1/2020.emnlp-main.656},
url = {https://doi.org/10.18653/v1/2020.emnlp-main.656}
}References
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