Showing posts with label dggs. Show all posts
Showing posts with label dggs. Show all posts

Tuesday, May 28, 2019

Frankenplace, geospatial search, and discrete global grid systems


Quick note on Frankenplace, a cool search tool that displays the geographic distribution of documents that match the user's query as a heatmap. Details of how the tool works are given in:
B. Adams, G. McKenzie, and M. Gahegan (2015) Frankenplace: Interactive Thematic Mapping for Ad Hoc Exploratory Searching. 24th International World Wide Web Conference (WWW 2015), http://dx.doi.org/10.1145/2736277.2741137
At the heart of the method is a discrete global grid that divides the world up into small areas of the same size. Topics are then geographically indexed, so that when a user searches, say, for "ebola", areas relevant to that query are highlighted (in this case, areas in Africa). It's striking example of querying data geographically, and one which I hope to explore further in the context of BHL and BioStor.


Update

I've put some notes on various discrete global grid systems in a repo on GitHub: RDF and discrete global grid systems.