A Domain Knowledge-Based Solution for Human Activity Recognition: The UJA Dataset Analysis

Proceedings

Kleyko, Denis¹  Karvonen, Niklas² 

[1] Author to whom correspondence should be addressed.;LuleÃ¥ University of Technology, Department of Computer Science, Electrical and Space Engineering, 971 87 LuleÃ¥, Sweden

关键词: data mining;    activities of daily living;    pattern matching;    the UJA Dataset;    binary sensors;   

DOI  :  10.3390/proceedings2191261

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

Detecting activities of daily living (ADL) allows for rich inference about user behavior, which can be of use in the care of for example, elderly people, chronic diseases, and psychological conditions. This paper proposes a domain knowledge-based solution for detecting 24 different ADLs in the UJA dataset. The solution is inspired by a Finite State Machine and performs activity recognition unobtrusively using only binary sensors. Each day in the dataset is segmented into: morning, day, evening in order to facilitate the inference from the sensors. The model performs the ADL recognition in two steps. The first step is to detect the sequence of activities in a given event stream of binary sensors, and the second step is to assign a starting and ending times for each of detected activities. Our proposed model achieved an accuracy of 81.3% using only a very small amount of operations, making it an interesting approach for resource-constrained devices that are common in smart environments. It should be noted, however, that the model can end up in faulty states which could cause a series of mis-classifications before the model is returned to the true state.

【 授权许可】

CC BY