The volunteered Geographic information quality assessment method based on accreditation of users

Authors: Amir Masoud Forati*, University of Wisconsin - Milwaukee
Topics: Geographic Information Science and Systems, Quantitative Methods
Keywords: Volunteered Information Systems, Trustworthiness, reputation, VGI Quality, OSM
Session Type: Paper
Day: 4/6/2019
Start / End Time: 1:10 PM / 2:50 PM
Room: Coolidge, Marriott, Mezzanine Level
Presentation File: No File Uploaded


Volunteered geographic information (VGI) is the harnessing of tools to create, assemble, and disseminate geographic data provided voluntarily by individuals. While many organizations can benefit from VGI, but only a few of them use this information, because VGI lacks reliable methods for assessing its quality. It is necessary to design and develop some particular criteria to evaluate the quality of VGI and overcome the limitations of traditional methods. The fact that the VGI was provided voluntarily by ordinary people makes the quality and reliability of these data challenging. In this study, an algorithm is presented to provide a more efficient way to measure and evaluate the quality of VGI. Due to the user-driven nature of VGI, we can use personality and social characteristics of users to assess and predict the behavior of users in the VGI system, and by this fact, we can evaluate the quality of VGI more appropriately. A model has been presented to accredit users and their edits based on factors affecting users’ performances. The study main idea has been implemented on the OpenStreetMap platform, and its results have been evaluated. According to the results of this study, it can be found that the VGI users’ behaviors can be classified based on their social and personality characteristics and involvement of these characteristics in the process of VGI quality assessment improves final results as well as it covers the weaknesses of existing methods.

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