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Shaking the foundations:delusions in sequence models for interaction and control (arxiv.org)
3 points by datashrimp on Oct 26, 2021 | hide | past | pdf | discuss on HN

In plain words: Sequence models trained on passive data mistake correlation for cause, so they make self-fulfilling wrong guesses when acting. Treating actions as interventions fixes this, and training with both factual and counterfactual errors teaches a system when to observe versus when to act.

Abstract · Shaking the foundations: delusions in sequence models for interaction and control

The recent phenomenal success of language models has reinvigorated machine learning research, and large sequence models such as transformers are being applied to a variety of domains. One important problem class that has remained relatively elusive however is purposeful adaptive behavior. Currently there is a common perception that sequence models "lack the understanding of the cause and effect of their actions" leading them to draw incorrect inferences due to auto-suggestive delusions. In this report we explain where this mismatch originates, and show that it can be resolved by treating actions as causal interventions. Finally, we show that in supervised learning, one can teach a system to condition or intervene on data by training with factual and counterfactual error signals respectively.

Pedro A. Ortega, Markus Kunesch, Grégoire Delétang, Tim Genewein, Jordi Grau-Moya, Joel Veness, Jonas Buchli, Jonas Degrave, Bilal Piot, Julien Perolat, Tom Everitt, Corentin Tallec, et al.
arXiv:2110.10819 · cs.LG, cs.AI · submitted Oct 20, 2021
abstract · pdf · html · DeepMind Tech Report, 16 pages, 4 figures

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