Automatic event detection in basketball using HMM with energy based defensive assignment
2019 ◽
Vol 15
(2)
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pp. 141-153
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Abstract We propose a unsupervised learning framework for automatically labeling events in a basketball game. Our framework uses the the optical player tracking data in the NBA. We first learn the time series of defensive assignments using a novel player and location dependent attraction based model which uses hidden Markov models (HMMs), Gaussian processes, and a “bond breaking” model for changes in defensive assignments. Next, we use the learned defensive assignments as an input to a set of HMMs that automatically detect events such as ball screens, drives and post-ups. We show that our models provide significant improvements over existing benchmarks both on defensive assignments and event detection.
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2017 ◽
Vol 80
(Book Review 1)
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2011 ◽
pp. 271-283
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2019 ◽
Vol 24
(1)
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pp. 14
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2018 ◽
Vol 26
(5)
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pp. 2807-2817
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