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Deep Learning on Spatio-temporal graphs (arxiv.org)
16 points by aj397 on Nov 27, 2015 | hide | past | pdf | discuss on HN

In plain words: It turns a map of how people and objects relate over time into a network of small memory-based learners that work together and learn as one. On tasks like predicting human motion and object interactions, it clearly beat the best earlier results.

Abstract · Structural-RNN: Deep Learning on Spatio-Temporal Graphs

Deep Recurrent Neural Network architectures, though remarkably capable at modeling sequences, lack an intuitive high-level spatio-temporal structure. That is while many problems in computer vision inherently have an underlying high-level structure and can benefit from it. Spatio-temporal graphs are a popular tool for imposing such high-level intuitions in the formulation of real world problems. In this paper, we propose an approach for combining the power of high-level spatio-temporal graphs and sequence learning success of Recurrent Neural Networks~(RNNs). We develop a scalable method for casting an arbitrary spatio-temporal graph as a rich RNN mixture that is feedforward, fully differentiable, and jointly trainable. The proposed method is generic and principled as it can be used for transforming any spatio-temporal graph through employing a certain set of well defined steps. The evaluations of the proposed approach on a diverse set of problems, ranging from modeling human motion to object interactions, shows improvement over the state-of-the-art with a large margin. We expect this method to empower new approaches to problem formulation through high-level spatio-temporal graphs and Recurrent Neural Networks.

Ashesh Jain, Amir R. Zamir, Silvio Savarese, Ashutosh Saxena
arXiv:1511.05298 · cs.CV, cs.LG, cs.NE, cs.RO · submitted Nov 17, 2015 · updated Apr 11, 2016
abstract · pdf · html · CVPR 2016 (Oral)

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