Attention over Learned Object Embeddings Enables Complex Visual Reasoning

David Ding, Felix Hill, Adam Santoro, Malcolm Reynolds, Matthew Botvinick

Keywords: Spatio-temporal reasoning, self-attention, transformers, object attention, visual question answering

TL;DR: A general framework of attention over learned object embeddings outperforms task-specific models on complex visual reasoning tasks thought to be too challenging for general models.

Abstract: Neural networks have achieved success in a wide array of perceptual tasks but often fail at tasks involving both perception and higher-level reasoning. On these more challenging tasks, bespoke approaches (such as modular symbolic components, independent dynamics models or semantic parsers) targeted towards that specific type of task have typically performed better. The downside to these targeted approaches, however, is that they can be more brittle than general-purpose neural networks, requiring significant modification or even redesign according to the particular task at hand. Here, we propose a more general neural-network-based approach to dynamic visual reasoning problems that obtains state-of-the-art performance on three different domains, in each case outperforming bespoke modular approaches tailored specifically to the task. Our method relies on learned object-centric representations, self-attention and self-supervised dynamics learning, and all three elements together are required for strong performance to emerge. The success of this combination suggests that there may be no need to trade off flexibility for performance on problems involving spatio-temporal or causal-style reasoning. With the right soft biases and learning objectives in a neural network we may be able to attain the best of both worlds.

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Code: https://github.com/deepmind/deepmind-research/tree/master/object_attention_for_reasoning