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Matt Williams

2 accepted papers

2025

Fairness Issues and Mitigations in (Differentially Private) Socio-Demographic Data Processes

AAAI 2025technical

Statistical agencies rely on sampling techniques to collect socio-demographic data crucial for policy-making and resource allocation. This paper shows that surveys of important societal relevance introduce sampling errors that unevenly impact group-level estimates, thereby compromising fairness in d…

Cited by 1SourcePDFScholar
2024

Targeted Activation Penalties Help CNNs Ignore Spurious Signals

AAAI 2024technical

Neural networks (NNs) can learn to rely on spurious signals in the training data, leading to poor generalisation. Recent methods tackle this problem by training NNs with additional ground-truth annotations of such signals. These methods may, however, let spurious signals re-emerge in deep convolutio…