In the last decade we’ve seen the rise and popularization of crowdsourced web services and applications that gather and share real-time and historical data about the position of aircraft around the world.

Music artists form a very natural social network, one in which artists are connected if they created and published music together.

Airports are very interesting and rich places from a GIS perspective.

X-Plane provides and manages a very large, open, and collaborative database of airports data accessible via the X-Plane Scenery Gateway.

We know Google is constantly tracking our real-life location and movements through Google Maps in our Android phones.

The final thesis of my computer science degree at the Universitat Politècnica de Catalunya (UPC) explored the concept of visibility graphs as applied to time series analysis1.