University of Oulu

Pekka Siirtola, Heli Koskimäki, and Juha Röning. 2018. OpenHAR: A Matlab Toolbox for Easy Access to Publicly Open Human Activity Data Sets. In Proceedings of the 2018 ACM International Joint Conference and 2018 International Symposium on Pervasive and Ubiquitous Computing and Wearable Computers (UbiComp '18). ACM, New York, NY, USA, 1396-1403. DOI: https://doi.org/10.1145/3267305.3267503

OpenHAR : a Matlab toolbox for easy access to publicly open human activity data sets

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Author: Siirtola, Pekka1; Koskimäki, Heli1; Röning, Juha1
Organizations: 1Biomimetics and Intelligent Systems Group University of Oulu PO Box 4500 90014 University of Oulu Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.1 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe201901031246
Language: English
Published: Association for Computing Machinery, 2018
Publish Date: 2019-01-03
Description:

Abstract

This study introduces OpenHAR, a free Matlab toolbox to combine and unify publicly open data sets. It provides an easy access to accelerometer signals of ten publicly open human activity data sets. Data sets are easy to access as OpenHAR provides all the data sets in the same format. In addition, units, measurement range and labels are unified, as well as, body position IDs. Moreover, data sets with different sampling rates are unified using downsampling. What is more, data sets have been visually inspected to find visible errors, such as sensor in wrong orientation. OpenHAR improves re-usability of data sets by fixing these errors. Altogether OpenHAR contains over 65 million labeled data samples. This is equivalent to over 280 hours of data from 3D accelerometers. This includes data from 211 study subjects performing 17 daily human activities and wearing sensors in 14 different body positions.

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ISBN: 978-1-4503-5966-5
Pages: 1396 - 1403
DOI: 10.1145/3267305.3267503
OADOI: https://oadoi.org/10.1145/3267305.3267503
Host publication: Proceedings of the 2018 ACM International Joint Conference and 2018 International Symposium on Pervasive and Ubiquitous Computing and Wearable Computers (UbiComp '18). October 8-12, 2018, Singapore
Conference: Acm international joint conference on pervasive and ubiquitous computing
Type of Publication: A4 Article in conference proceedings
Field of Science: 113 Computer and information sciences
213 Electronic, automation and communications engineering, electronics
Subjects:
Funding: The authors would like to thank Infotech Oulu for funding this work.
Copyright information: © ACM 2018. This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in Proceedings of the 2018 ACM International Joint Conference and 2018 International Symposium on Pervasive and Ubiquitous Computing and Wearable Computers (UbiComp '18), https://doi.org/10.1145/3267305.3267503.