Object-based attention for spatio-temporal reasoning: Outperforming neuro-symbolic models with flexible distributed architectures

• URL: http://arxiv.org/abs/2012.08508v1
• Date: Tue, 15 Dec 2020 18:57:40 GMT
• Title: Object-based attention for spatio-temporal reasoning: Outperforming neuro-symbolic models with flexible distributed architectures
• Authors: David Ding, Felix Hill, Adam Santoro, Matt Botvinick
• Abstract summary: We show that a fully-learned neural network with the right inductive biases can perform substantially better than all previous neural-symbolic models. Our model makes critical use of both self-attention and learned "soft" object-centric representations.
• Score: 15.946511512356878
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Neural networks have achieved success in a wide array of perceptual tasks, but it is often stated that they are incapable of solving tasks that require higher-level reasoning. Two new task domains, CLEVRER and CATER, have recently been developed to focus on reasoning, as opposed to perception, in the context of spatio-temporal interactions between objects. Initial experiments on these domains found that neuro-symbolic approaches, which couple a logic engine and language parser with a neural perceptual front-end, substantially outperform fully-learned distributed networks, a finding that was taken to support the above thesis. Here, we show on the contrary that a fully-learned neural network with the right inductive biases can perform substantially better than all previous neural-symbolic models on both of these tasks, particularly on questions that most emphasize reasoning over perception. Our model makes critical use of both self-attention and learned "soft" object-centric representations, as well as BERT-style semi-supervised predictive losses. These flexible biases allow our model to surpass the previous neuro-symbolic state-of-the-art using less than 60% of available labelled data. Together, these results refute the neuro-symbolic thesis laid out by previous work involving these datasets, and they provide evidence that neural networks can indeed learn to reason effectively about the causal, dynamic structure of physical events.

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