Towards context consistency in a rule-based activity recognition architecture

Tuan Anh Nguyen, Viktoriya Degeler, Rosario Contarino, Alexander Lazovik, Doina Bucur, Marco Aiello

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contribution

3 Citations (Scopus)

Abstract

Accurate human activity recognition (AR) is crucial for intelligent pervasive environments, e.g., energy-saving buildings. In order to gain precise and fine-grained AR results, a system must overcome partial observability of the environment and noisy, imprecise, and corrupted sensor data. In this work, we propose a rule-based AR architecture that effectively handles multiple-user, multiple-area situations, recognizing real-time office activities. The proposed solution is based on an ontological approach, using low-cost, binary, wireless sensors. We employ context consistency diagrams (CCD) as a key component for fault correction. A CCD is a data structure that provides a mechanism for probabilistic reasoning about the current situation and determines the most probable current situation in the presence of inconsistencies, conflicts, and ambiguities in sensor readings. The implementation of the system and its evaluation in a living lab environment show that the CCD corrects up to 46.8% of sensor data faults, improving overall recognition accuracy by up to 11.1%, thus achieving reliable recognition results from unreliable sensor data.

Original languageEnglish
Title of host publicationProceedings - IEEE 10th International Conference on Ubiquitous Intelligence and Computing and IEEE 10th International Conference on Autonomic and Trusted Computing
Place of PublicationNew Jersey, USA
Pages625-630
Number of pages6
ISBN (Electronic)9781479924820
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event10th IEEE International Conference on Ubiquitous Intelligence and Computing, UIC 2013 and 10th IEEE International Conference on Autonomic and Trusted Computing, ATC 2013 - Vietri sul Mare, Italy
Duration: 18 Dec 201321 Dec 2013

Other

Other10th IEEE International Conference on Ubiquitous Intelligence and Computing, UIC 2013 and 10th IEEE International Conference on Autonomic and Trusted Computing, ATC 2013
CountryItaly
CityVietri sul Mare
Period18/12/1321/12/13

Keywords

  • Activity recognition
  • Context consistency
  • Context reasoning
  • Context-aware computing

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