Balancing Timing and Accuracy Requirements in Human Activity Recognition Mobile Applications

• Main Authors: Roua Jabla, Félix Buendía, Maha Khemaja, Sami Faiz
• Format: Article
• Language: English
• Published: MDPI AG 2019-11-01
• Series: Proceedings
• Subjects: timing requirements; human activity recognition; hybrid classification approaches
• Online Access: https://www.mdpi.com/2504-3900/31/1/15

Timing requirements are present in many current context-aware and ambient intelligent applications. These kinds of applications usually demand a timing response according to needs dealing with context changes and user interactions. The current work introduces an approach that combines knowledge-driven and data-driven methods to check these requirements in the area of human activity recognition. Such recognition is traditionally based on machine learning classification algorithms. Since these algorithms are highly time consuming, it is necessary to choose alternative approaches when timing requirements are tight. In this case, the main idea consists of taking advantage of semantic ontology models that allow maintaining a level of accuracy during the recognition process while achieving the required response times. The experiments performed and their results in terms of checking such timing requirements along with keeping acceptable recognition levels confirm this idea as shown in the final section of the work.