Efficient human activity recognition using a single wearable sensor

Jianchao Lu, Xi Zheng*, Michael Sheng, Jiong Jin, Shui Yu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

31 Citations (Scopus)


A reliable recognition of human activities using IoT devices (e.g., on-body wearable sensors) enables various applications, such as fitness tracking, bad habit detecting, healthcare support and elder care support. However, inaccurate results may cause an adverse effect on users or even an unpredictable accident. In order to improve the accuracy in the daily life activities classification, we propose in this paper countable and uncountable activities to better facilitate the understanding of the nature of daily life activities. We design global and local features and their integrated feature set for classifying countable and uncountable activities. The key idea is to examine human daily life activities from different perspectives and attempt to give a comprehensive description of the characteristics of each activity through leveraging the global and local features. By using only one simple accelerometer, our approach is evaluated to be able to recognize daily life activities with higher accuracy than the state of the art, based on one self-collected and another public available data set.
Original languageEnglish
Pages (from-to)11137-11146
Number of pages10
JournalIEEE Internet of Things Journal
Issue number11
Early online date20 May 2020
Publication statusPublished - Nov 2020


  • eHealth and mHealth
  • mobile and ubiquitous systems
  • sensor signal processing


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