KD-photomap: Exploring photographs in space and time. - Iulian Peca; Haolin Zhi; Katerina Vrotsou; Natalia V. Andrienko; Gennady L. Andrienko (IEEE VAST, 2011)

Interactive exploration of events and presence of people in space and time through KD-photomap. - Katerina Vrotsou; Haolin Zhi; Iulian Peca; Gennady L. Andrienko; Natalia V. Andrienko (AVI, 2012)

Scalable Cluster Analysis of Spatial Events. - Iulian Peca; Georg Fuchs; Katerina Vrotsou; Natalia V. Andrienko; Gennady L. Andrienko (EuroVA@EuroVis, 2012)