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Recognizing interleaved and concurrent activities using qualitative and quantitative temporal relationships

Published: 01 December 2011 Publication History

Abstract

The majority of approaches to activity recognition in sensor environments are either based on manually constructed rules for recognizing activities or lack the ability to incorporate complex temporal dependencies. Furthermore, in many cases, the rather unrealistic assumption is made that the subject carries out only one activity at a time. In this paper, we describe the use of Markov logic as a declarative framework for recognizing interleaved and concurrent activities incorporating both input from pervasive lightweight sensor technology and common-sense background knowledge. In particular, we assess its ability to learn statistical-temporal models from training data and to combine these models with background knowledge to improve the overall recognition accuracy. We also show the viability and the benefit of exploiting both qualitative and quantitative temporal relationships like the duration of the activities and their temporal order. To this end, we propose two Markov logic formulations for inferring the foreground activity as well as each activities' start and end times. We evaluate the approach on an established dataset where it outperforms state-of-the-art algorithms for activity recognition.

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    Published In

    cover image Pervasive and Mobile Computing
    Pervasive and Mobile Computing  Volume 7, Issue 6
    December, 2011
    120 pages

    Publisher

    Elsevier Science Publishers B. V.

    Netherlands

    Publication History

    Published: 01 December 2011

    Author Tags

    1. Activity recognition
    2. Markov logic networks
    3. Pervasive computing
    4. RFID
    5. Statistical relational learning
    6. Temporal reasoning

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    • (2024)exHARProceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies10.1145/36435008:1(1-30)Online publication date: 6-Mar-2024
    • (2019)Ontology-driven semantic unified modelling for concurrent activity recognition (OSCAR)Multimedia Tools and Applications10.1007/s11042-018-6318-578:2(2073-2104)Online publication date: 1-Jan-2019
    • (2018)Simulation and Sensitivity Analysis of Sensors Network for Cardiac MonitoringProceedings of the 2018 International Conference on Digital Health10.1145/3194658.3194686(148-149)Online publication date: 23-Apr-2018
    • (2018)A Multi Agent Approach to Facilitate the Identification of Interleaved ActivitiesProceedings of the 2018 International Conference on Digital Health10.1145/3194658.3194684(126-130)Online publication date: 23-Apr-2018
    • (2016)In-home Activity and Micro-motion Logging Using Mobile Robot with KinectAdjunct Proceedings of the 13th International Conference on Mobile and Ubiquitous Systems: Computing Networking and Services10.1145/3004010.3004027(106-111)Online publication date: 28-Nov-2016
    • (2013)A probabilistic ontological framework for the recognition of multilevel human activitiesProceedings of the 2013 ACM international joint conference on Pervasive and ubiquitous computing10.1145/2493432.2493501(345-354)Online publication date: 8-Sep-2013
    • (2013)Complex activity recognition using context-driven activity theory and activity signaturesACM Transactions on Computer-Human Interaction10.1145/249083220:6(1-34)Online publication date: 1-Dec-2013
    • (2012)A knowledge-driven approach to composite activity recognition in smart environmentsProceedings of the 6th international conference on Ubiquitous Computing and Ambient Intelligence10.1007/978-3-642-35377-2_44(322-329)Online publication date: 3-Dec-2012

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