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Neural networks for temporal relational reasoning in soccer analysis

Grant number: 18/19350-5
Support type:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): July 01, 2019
Effective date (End): June 30, 2020
Field of knowledge:Physical Sciences and Mathematics - Computer Science - Computing Methodologies and Techniques
Principal researcher:Ricardo da Silva Torres
Grantee:Samuel Gomes Fadel
Supervisor abroad: Ulf Brefeld
Home Institution: Instituto de Computação (IC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
Research place: Leuphana University of Lüneburg, Germany  
Associated to the scholarship:17/24005-2 - Temporal relational reasoning with neural networks, BP.DR


Team sports, such as soccer and basketball, are mostly driven by the coordinated efforts of their players, leading to a complex system of interactions. Motivated by the availability of data related to these sports, recent methods were introduced to model the behavior of players using tracking data. While they produce convincing models of how players behave during matches, relations between them are left to, at best, be implicitly taken into account. For the last few years, neural networks have been central to state-of-the-art models on audio, image, and text data, which has prompted researchers to promote their use on other domains, such as graphs. In this research, we aim to use dynamic graphs as a representation for both soccer tracking data and interactions between players over time, designing new neural network architectures that can learn from this data. We aim to tackle two problems with this approach. The first is modeling of collective movement of players, with the intent of being able to realistically predict where players might be in the future. The second is the retrieval of match clips, that is, temporal ``slices'' of matches described by dynamic graphs. Our methodology employs a neural network capable of learning from dynamic graphs, under the Graph Network (GN) framework. This approach leverages the flexible formulation GNs provide, enabling us to explore different solutions within the same framework, while using the richer representation of a match with dynamic graphs.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FADEL, SAMUEL G.; MAIR, SEBASTIAN; DA SILVA TORRES, RICARDO; BREFELD, ULF. Contextual movement models based on normalizing flows. AStA-Advances in Statistical Analysis, . (17/24005-2, 16/50250-1, 15/24494-8, 17/20945-0, 18/19350-5, 19/17729-0)

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