Rank pooling approach for wearable sensor-based adls recognition

Muhammad Adeel Nisar*, Kimiaki Shirahama, Frédéric Li, Xinyu Huang, Marcin Grzegorzek

*Corresponding author for this work
1 Citation (Scopus)


This paper addresses wearable-based recognition of Activities of Daily Living (ADLs) which are composed of several repetitive and concurrent short movements having temporal dependencies. It is improbable to directly use sensor data to recognize these long-term composite activities because two examples (data sequences) of the same ADL result in largely diverse sensory data. However, they may be similar in terms of more semantic and meaningful short-term atomic actions. Therefore, we propose a two-level hierarchical model for recognition of ADLs. Firstly, atomic activities are detected and their probabilistic scores are generated at the lower level. Secondly, we deal with the temporal transitions of atomic activities using a temporal pooling method, rank pooling. This enables us to encode the ordering of probabilistic scores for atomic activities at the higher level of our model. Rank pooling leads to a 5–13% improvement in results as compared to the other popularly used techniques. We also produce a large dataset of 61 atomic and 7 composite activities for our experiments.

Original languageEnglish
Article number3463
JournalSensors (Switzerland)
Issue number12
Pages (from-to)1-21
Number of pages21
Publication statusPublished - 06.2020

Research Areas and Centers

  • Centers: Center for Artificial Intelligence Luebeck (ZKIL)


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