Towards geosocial recommender systems. - Victor de Graaff; Maurice van Keulen; Rolf A. de By (WI&C, 2012)

Point of interest to region of interest conversion. - Victor de Graaff; Rolf A. de By; Maurice van Keulen; Jan Flokstra (SIGSPATIAL/GIS, 2013)

Generic knowledge-based Analysis of Social Media for Recommendations. - Victor de Graaff; Anne van de Venis; Maurice van Keulen; Rolf A. de By (CBRecSys@RecSys, 2015)

Spatiotemporal Behavior Profiling: A Treasure Hunt Case Study. - Victor de Graaff; Dieter Pfoser; Maurice van Keulen; Rolf A. de By (W2GIS, 2015)

Geosocial recommender systems. - Victor de Graaff (2015)

Automated semantic trajectory annotation with indoor point-of-interest visits in urban areas. - Victor de Graaff; Rolf A. de By; Maurice van Keulen (SAC, 2016)