
doi: 10.1109/cec.2012.29
Volunteered Geographic Information (VGI) has been receiving attention in the GIS community. The Open Street Map Project (OSM), which is one good example of VGI, includes the participation of worldwide users. OSM is creating a world geographic database that can be edited by anyone. Its activities have high social significance. We are researching the relevance of the information quality of information databases that can be distributed among the OSM community and the community activities of the process. As a first step, we compared the data of other regions and before the Great East Japan Earthquake to the Japanese data to analyze community activities. We identified the growth process of a community unique to Japan.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 4 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
