A new overall quality indicator OQoC and the corresponding context inconsistency elimination algorithm based on OQoC and Dempster–Shafer theory

With the rapid development of Internet of things technology, context-aware systems (CASs) are being gradually improved and widely applied to many fields such as digital home, smart health and so on. However, context information from sensor-rich CASs usually has inconsistency, which leads to wrong decisions made by systems, and even lowers user experience. Therefore, a new overall quality of context (OQoC) indicator is defined, which is the effective fusion of the parameters of reliability, up-to-dateness and modified correctness. Its accurate measurement is of great importance in inconsistency elimination. Moreover, we put forward a new context inconsistency elimination algorithm based on OQoC and Dempster–Shafer theory. The performance of the proposed algorithm is verified in personal identity verification scenario. Experimental results from multiple dimensions fully show the superiority of the proposed algorithm in solving context inconsistency problem, and quality of context information using the proposed algorithm has been greatly improved.

[1]  Deok-Hwan Kim,et al.  Efficient context-aware selection based on user feedback , 2012, IEEE Transactions on Consumer Electronics.

[2]  David F. McAllister,et al.  Reliability of voting in fault-tolerant software systems for small output-spaces , 1990 .

[3]  Linda C. Smith,et al.  A framework for information quality assessment , 2007 .

[4]  Huaizhi Su,et al.  An approach using Dempster–Shafer evidence theory to fuse multi-source observations for dam safety estimation , 2019, Soft Comput..

[5]  Nazim Agoulmine,et al.  A Quality-Aware Approach for Resolving Context Conflicts in Context-Aware Systems , 2011, 2011 IFIP 9th International Conference on Embedded and Ubiquitous Computing.

[6]  Ilsun You,et al.  Intelligent healthcare service based on context inference using smart device , 2014, Soft Computing.

[7]  Mark Weiser,et al.  The computer for the 21st Century , 1991, IEEE Pervasive Computing.

[8]  Francois Siewe,et al.  Resolving context conflicts using Association Rules (RCCAR) to improve quality of context-aware systems , 2013, 2013 8th International Conference on Computer Science & Education.

[9]  Younghee Kim,et al.  A Quality Measurement Method of Context Information in Ubiquitous Environments , 2006, 2006 International Conference on Hybrid Information Technology.

[10]  Yan Zhang,et al.  Quality of health information for consumers on the web: A systematic review of indicators, criteria, tools, and evaluation results , 2015, J. Assoc. Inf. Sci. Technol..

[11]  Jun Wang,et al.  A QoC Based Method for Reliable Fusion of Uncertain Pervasive Contexts , 2013, 2013 IEEE 10th International Conference on High Performance Computing and Communications & 2013 IEEE International Conference on Embedded and Ubiquitous Computing.

[12]  Hongji Xu,et al.  A Novel Comprehensive Quality Index QoX and the Corresponding Context-aware System Framework , 2018, 2018 IEEE 4th International Conference on Computer and Communications (ICCC).

[13]  Marten van Sinderen,et al.  Trustworthiness and Quality of Context Information , 2008, 2008 The 9th International Conference for Young Computer Scientists.

[14]  Jun Wang,et al.  Evaluation of Quality Measure Factors for the Middleware Based Context-Aware Applications , 2012, 2012 IEEE/ACIS 11th International Conference on Computer and Information Science.

[15]  Matthias Baumgarten,et al.  Measuring the Probability of Correctness of Contextual Information in Context Aware Systems , 2009, 2009 Eighth IEEE International Conference on Dependable, Autonomic and Secure Computing.

[16]  Asma Abdulghani Qassem Al-Shargabi,et al.  A multilayer framework for quality of context in context-aware systems , 2015 .

[17]  Gregory D. Abowd,et al.  A Conceptual Framework and a Toolkit for Supporting the Rapid Prototyping of Context-Aware Applications , 2001, Hum. Comput. Interact..

[18]  Mario A. R. Dantas,et al.  Quality of Context Evaluating Approach in AAL Environment Using IoT Technology , 2017, 2017 IEEE 30th International Symposium on Computer-Based Medical Systems (CBMS).

[19]  Hongji Xu,et al.  Effective context inconsistency elimination algorithm based on feedback and reliability distribution for IoV , 2014 .

[20]  Schahram Dustdar,et al.  On the Evaluation of Quality of Context , 2008, EuroSSC.

[21]  Michael Krause,et al.  Challenges in Modelling and Using Quality of Context (QoC) , 2005, MATA.

[22]  Jun Wu,et al.  Sensing Attribute Weights: A Novel Basic Belief Assignment Method , 2017, Sensors.

[23]  Asma A. Q. Al-Shargabi,et al.  Quality of Context in Context-Aware Systems , 2017, EAI Endorsed Trans. Context aware Syst. Appl..

[24]  Shuai Xu,et al.  A Weighted Belief Entropy-Based Uncertainty Measure for Multi-Sensor Data Fusion , 2017, Sensors.

[25]  Sophie Chabridon,et al.  A fine-grain approach for evaluating the quality of context , 2011, 2011 IEEE International Conference on Pervasive Computing and Communications Workshops (PERCOM Workshops).

[26]  Hongji Xu,et al.  Approach of measuring PoC of context using limited self-feedback in context-aware systems , 2016, IET Wirel. Sens. Syst..

[27]  Mario A. R. Dantas,et al.  Toward assessing Quality of Context parameters in a ubiquitous assisted environment , 2014, 2014 IEEE Symposium on Computers and Communications (ISCC).

[28]  Schahram Dustdar,et al.  Quality Aware Context Information Aggregation System for Pervasive Environments , 2009, 2009 International Conference on Advanced Information Networking and Applications Workshops.

[29]  Thomas Redman,et al.  Data quality for the information age , 1996 .

[30]  C. E. SHANNON,et al.  A mathematical theory of communication , 1948, MOCO.

[31]  Schahram Dustdar,et al.  Quality of Context: models and applications for context-aware systems in pervasive environments , 2014, The Knowledge Engineering Review.

[32]  Jun Wang,et al.  Research of QoC Based Management for Complex Sensor Networks Applications , 2014, 2014 IEEE 12th International Conference on Dependable, Autonomic and Secure Computing.

[33]  Schahram Dustdar,et al.  Using Quality of Context to Resolve Conflicts in Context-Aware Systems , 2009, QuaCon.

[34]  Xinkai Yang.  An Adaptive Mechanism for Inconsistent Context Resolution in Ubiquitous Computing , 2012, 2012 International Conference on Control Engineering and Communication Technology.

[35]  Hans-Arno Jacobsen,et al.  Hybrid context inconsistency resolution for context-aware services , 2011, 2011 IEEE International Conference on Pervasive Computing and Communications (PerCom).