Data trustworthiness and user reputation as indicators of VGI quality |
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| Authors: | Paolo Fogliaroni Fausto D’Antonio |
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| Institution: | 1. Department for Geodesy and Geoinformation, Vienna University of Technology, Vienna, Austria;2. Department of Industrial and Information Engineering and Economics, University of L’Aquila, L’Aquila, Italy |
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| Abstract: | ABSTRACTVolunteered geographic information (VGI) has entered a phase where there are both a substantial amount of crowdsourced information available and a big interest in using it by organizations. But the issue of deciding the quality of VGI without resorting to a comparison with authoritative data remains an open challenge. This article first formulates the problem of quality assessment of VGI data. Then presents a model to measure trustworthiness of information and reputation of contributors by analyzing geometric, qualitative, and semantic aspects of edits over time. An implementation of the model is running on a small data-set for a preliminary empirical validation. The results indicate that the computed trustworthiness provides a valid approximation of VGI quality. |
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| Keywords: | Volunteered geographic information data quality trustworthiness reputation |
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