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ISPRS Int. J. Geo-Inf. 2016, 5(2), 10; doi:10.3390/ijgi5020010

A Spatio-Temporal VGI Model Considering Trust-Related Information

1
School of Geosciences and Info-physics, Central South University, Changsha 410083, China
2
Key Lab of Knowledge Processing and Networked Manufacturing, Hunan University of Science and Technology, Xiangtan 411201, China
3
College of Geography and Environment, Shandong Normal University, Jinan 250014, China
*
Author to whom correspondence should be addressed.
Academic Editor: Wolfgang Kainz
Received: 31 May 2015 / Revised: 24 January 2016 / Accepted: 28 January 2016 / Published: 3 February 2016
(This article belongs to the Special Issue Borderlands Modeling and Analysis)
View Full-Text   |   Download PDF [1884 KB, uploaded 3 February 2016]   |  

Abstract

Over the past several years, volunteered geographic information (VGI) has expanded rapidly. VGI collection has been proven to serve as a highly successful means of acquiring timely and detailed global spatial data. However, VGI includes several special properties. For example, the contributor’s reputation affects the quality of objects edited, and a geographic object may have multiple versions. The existing spatio-temporal data model cannot describe the unique properties of VGI. Therefore, a spatio-temporal VGI model considering trust-related information is presented in this paper. In this model, central elements of the VGI environment, e.g., geographic entity, entity state, state version, contributor, reputation, geographic event, and edit event, and their interaction mechanisms are analysed. Major VGI objects and relations are determined using the object-oriented method and trust-related operations, and their relationships are analysed, and nine linkage rules among trust-related operations are found to maintain the consistency of corresponding data. A prototype system for the spatio-temporal VGI model is presented, and the effectiveness of the model is verified. View Full-Text
Keywords: GIS; VGI; spatio-temporal model; reputation; trust; operation GIS; VGI; spatio-temporal model; reputation; trust; operation
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Zhao, Y.; Zhou, X.; Li, G.; Xing, H. A Spatio-Temporal VGI Model Considering Trust-Related Information. ISPRS Int. J. Geo-Inf. 2016, 5, 10.

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