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Computer Sciences, Robotics and automatic control, Automation and control systems
We propose a new approach to activity discovery, based on the neural language modelling of streaming sensor events. Our approach proceeds in multiple stages: we build binary links between activities using probability distributions generated by a neural language model trained on the dataset, and combine the binary links to produce complex activities. We then use the activities as sensor events, allowing us to build complex hierarchies of activities. We put an emphasis on dealing with interleaving, which represents a major challenge for many existing activity discovery systems. The system is tested on a realistic dataset, demonstrating it as a promising solution to the activity discovery problem.
Rogers, E., Ross, R.J. & Kelleher, J.D. (2020). Modelling interleaved activities using language models. InProceedings of the 34th International ECMS Conference on Modelling and Simulation, ECMS 2020, pages 183--189.DOI: 10.7148/2020-0183