Quantitative evaluation of volunteered geographic information paradigms:n social location-based services case study

摘要

As of 2010, 90% of the data that existed in the world were created within the previous 2 years, while personal location data have been singled out as one of the five primary 'big data' streams in the 2011 McKinsey report. By 2020, the volume of existing data will increase by 50-fold, where a large percentage of this volume will be associated with geospatial data. One of the reasons for this is the existence of the volunteered geographic information (VGI) paradigm, which encapsulates the idea of