Research presentation at
- “Interregionales Seminar fĂĽr Präferenzdatenbanken und algebraische Methoden (ISPAM 14) in Sion, Switzerland (16th of July 2014)
- the 1st Int. workshop on managing and mining enriched geo-spatial data (GeoRich) in conjunction with SIGMOD, 27th June, 2014, Snowbird, Utah, USA