More than 10 years have passed since the coining of the term volunteered geographic
information (VGI) in 2007. This article presents the results of a review of the literature …

Point-of-interest (POI) data from map sources are increasingly used in a wide range of
applications, including real estate, land use, and transport planning. However, uncertainties …

Traffic stream determining is an essential part of the intelligent transportation management
system. Precise prediction of traffic flow provides a basis for other tasks, like forecasting …

The growing use of crowdsourced geographic information (CGI) has prompted the
employment of several methods for assessing information quality, which are aimed at …

A large amount of crowd-sourced geospatial data have been created in recent years due to
the interactivity of Web 2.0 and the availability of Global Positioning System (GPS). This geo …

Natural disasters have always been one of the threats to human societies. As a result of
such crises, many people will be affected, injured, and many financial losses will incur …

Due to the increasing relevance of spatial information in different aspects of location-based
services, various methods are used to collect this information. The use of crowdsourcing due …

Geographical studies of outdoor activities have increased in recent years with the rise in
popularity of these activities worldwide, including in Japan. Volunteered geographic …

Trajectory similarity measurement is a vital and widely used step in many applications,
including recommendation systems. In the discipline of similarity measurement, research …

VGI is an attractive source of data, but the quality assurance limits its usages. This study
proposes a framework to estimate the quality of the VGI and to classify them based on the …