Learning to judge like a human: Convolutional networks for classification of ski jumping errors

Heike Brock, Yuji Ohgi, James Lee

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Advanced machine learning technologies are seldom applied to wearable motion sensor data obtained from sport movements. In this work, we therefore investigated neural networks for motion performance evaluation utilizing a set of inertial sensor-based ski jump measurements. A multidimensional convolutional network model that related the motion data under aspects of time, placement and sensor type was implemented. Additionally, its applicability as a measure for automatic motion style judging was evaluated. Results indicate that one multi-dimensional convolutional layer is sufficient to recognize relevant performance error representations. Furthermore, comparisons against a Support Vector Machine and a Hidden Markov Model show that the new model outperforms feature-based methods under noisy and biased data environments. Architectures such as the proposed evaluation system can hence become essential for automatic performance analysis and style judging systems in future.

Original languageEnglish
Title of host publicationISWC 2017 - Proceedings of the 2017 ACM International Symposium on Wearable Computers
PublisherAssociation for Computing Machinery
Pages106-113
Number of pages8
VolumePart F130534
ISBN (Electronic)9781450351881
DOIs
Publication statusPublished - 2017 Sep 11
Event29th ACM International Symposium on Wearable Computers, ISWC 2017 - Maui, United States
Duration: 2017 Sep 112017 Sep 15

Other

Other29th ACM International Symposium on Wearable Computers, ISWC 2017
CountryUnited States
CityMaui
Period17/9/1117/9/15

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Keywords

  • Convolutional neural networks
  • Motion analysis
  • Motion data
  • Specialized activity recognition

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Networks and Communications

Cite this

Brock, H., Ohgi, Y., & Lee, J. (2017). Learning to judge like a human: Convolutional networks for classification of ski jumping errors. In ISWC 2017 - Proceedings of the 2017 ACM International Symposium on Wearable Computers (Vol. Part F130534, pp. 106-113). Association for Computing Machinery. https://doi.org/10.1145/3123021.3123038