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Publication - Professor Nello Cristianini

    Biased Embeddings from Wild Data

    Measuring, Understanding and Removing


    Sutton, A, Lansdall-Welfare, T & Cristianini, N, 2018, ‘Biased Embeddings from Wild Data: Measuring, Understanding and Removing’. in: Advances in Intelligent Data Analysis XVII : 17th International Symposium, IDA 2018, ’s-Hertogenbosch, The Netherlands, October 24–26, 2018, Proceedings. Springer, Cham, pp. 328-339


    Many modern Artificial Intelligence (AI) systems make use of data embeddings, particularly in the domain of Natural Language Processing (NLP). These embeddings are learnt from data that has been gathered "from the wild" and have been found to contain unwanted biases. In this paper we make three contributions towards measuring, understanding and removing this problem. We present a rigorous way to measure some of these biases, based on the use of word lists created for social psychology applications; we observe how gender bias in occupations reflects actual gender bias in the same occupations in the real world; and finally we demonstrate how a simple projection can significantly reduce the effects of embedding bias. All this is part of an ongoing effort to understand how trust can be built into AI systems.

    Full details in the University publications repository