Paper Info
Title
"Contextualized VGI" Creation and Management to Cope with Uncertainty and Imprecision.
Abstract
This paper investigates the causes of imprecision of the observations and uncertainty of the authors who create Volunteer Geographic Information (VGI), i.e., georeferenced contents generated by volunteers when participating in some citizen science project. Specifically, various aspects of imprecision and uncertainty of VGI are outlined and, to cope with them, a knowledge-based approach is suggested based on the creation and management of contextualized VGI. A case study example in agriculture is reported where contextualized VGI can be created about in situ crops observations by the use of a smart app that supports volunteers by means of both an ontology and the representation of the context of the geo-localization. Furthermore, an approach to cope with both ill-defined knowledge and volunteer's uncertainty or imprecise observations is defined based on a fuzzy ontology with uncertainty level-based approximate reasoning. By representing uncertainty and imprecision of VGI, users, i.e., consumers, can exploit quality checking mechanisms to filter VGI based on their needs.
Year
DOI
Venue
2016
10.3390/ijgi5120234
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
Keywords
Field
DocType
contextualized Volunteered Geographic Information (VGI),smart app,uncertainty,Imprecision,fuzzy ontology,level-based approximate reasoning
Ontology,Computer science,Georeference,Knowledge management,Exploit,Approximate reasoning,Fuzzy ontology,Volunteered geographic information,Citizen science
Journal
Volume
Issue
ISSN
5
12
2220-9964
Citations 
PageRank 
References 
0
0.34
0
Authors
7
Name
Order
Citations
PageRank
Gloria Bordogna1974103.99
Luca Frigerio200.68
Tomás Kliment330.80
Pietro Alessandro Brivio49818.25
Laure Hossard531.08
giacinto manfron691.59
Simone Sterlacchini7214.91