Volunteered geographic information (VGI) refers to the widespread engagement of citizens in the creation of geographic information, often through social media, smartphones and online mapping tools. It represents a shift in the ways information is created, shared, used and experienced, and has important implications for disaster management. This research examines the potential role of VGI in fos...

----------------------------------------------------------------------ABSTRACT------------------------------------------------This review paper presents a study about to create qualitative VGI(volunteered geographic information) and its semantic web representation .Creation of VGI describes about to create ,use and share volumes of spatial data in an increasingly accessible fashion. This paper ...

Volunteered Geographic Information (VGI) has the potential to provide benefit to endusers over and above that of Professional Geographic Information (PGI). A multi-methods approach consisting of participatory observation, focus groups and diary studies, was used to study how VGI and PGI were actually used by a target user group. A theoretical framework of information relevance was used to under...

Global online maps are an important tool and data sets such for such maps are normally provided by commercial providers or public authorities. Nevertheless, the ever expanding trend of collaboratively collected geodata by hobbyists, namely Volunteered Geographic Information (VGI), increases regarding both data quantity and quality. Therefore, VGI can be considered as a real alternative data sou...

Recent advances in spatial data collection technologies and online services dramatically increase the contribution of ordinary people to produce, share and use geographic information. Collecting spatial data and disseminating them on the internet by citizens has led to a huge source of spatial data termed as Volunteered Geographic Information (VGI) by Mike Goodchild. Despite the advantages of V...

The number of crisis events around the world has been increasing in the last years and suggests there is a real need to make communities more resilient to them. In addition to providing conventional authoritative data, ordinary citizens and residents in the affected areas are also voluntarily supplying information about the affected areas, in what has been called Crowdsourced or Volunteered Geo...

Volunteers are the key component in the collection of Volunteered Geographic Information (VGI), so what motivates their participation, what strategies work in recruitment and how sustainability of participation can be achieved are key questions that need to be answered to inform VGI system design and implementation. This chapter reviews studies that have examined these questions and presents th...

The combination of Volunteered Geographic Information (VGI) with remote sensing classification techniques is addressed rarely, yet has masses of potential in the domain of improving data collection and annotation for environmental monitoring. This position paper delineates the benefits of using VGI within ecological research and identifies key research challenges in gathering ecologically robus...

The assessment of the quality and accuracy of Volunteered Geographic Information (VGI) contributions, and by extension the ultimate utility of VGI data has fostered much debate within the geographic community. The limited research to date has been focused on VGI data of linear features and has shown that the error in the data is heterogeneously distributed. Some have argued that data produced b...