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Uncertainty Management in Context-Aware Applications: Increasing Usability and User Trust

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Abstract

Uncertainty in context-aware computing is mainly a consequence of the complexity of context acquisition mechanisms and context processing. The presence of uncertainty may harm the users’ confidence in the application, rendering it useless. This paper describes a three-phase strategy to manage uncertainty by identifying its possible sources, representing uncertain information, and determining how to proceed, once uncertain context is detected. We conducted an experiment to assess the impact and utility of uncertainty management in a location-aware museum guide that incorporated the approach proposed. The impact was measured by comparing the number of erroneous location estimations and the number of interactions performed by users. A survey was used to measure user friendliness, the utility of the application and user trust among 118 museum visitors who participated in the experiment. Results suggest that uncertainty management helps improve the accuracy of context estimates and the user’s perception on the reliability of the application.

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Authors and Affiliations

  1. Computer Science Department, CICESE, Km. 107 Carretera Tijuana-Ensenada, Ensenada, Baja California, CP 22860, Mexico

    Pedro Damián-Reyes & Jesús Favela

  2. School of Telematics, University of Colima, Av. Universidad 333, Colima, Colima, CP 28040, Mexico

    Juan Contreras-Castillo

Authors
  1. Pedro Damián-Reyes
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  2. Jesús Favela
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  3. Juan Contreras-Castillo
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Correspondence to Pedro Damián-Reyes.

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Damián-Reyes, P., Favela, J. & Contreras-Castillo, J. Uncertainty Management in Context-Aware Applications: Increasing Usability and User Trust. Wireless Pers Commun 56, 37–53 (2011). https://doi.org/10.1007/s11277-009-9882-1

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