Analyzing Flickr groups. - Radu Andrei Negoescu; Daniel Gatica-Perez (CIVR, 2008)

Topickr: flickr groups and users reloaded. - Radu Andrei Negoescu; Daniel Gatica-Perez (ACM Multimedia, 2008)

Flickr hypergroups. - Radu Andrei Negoescu; Brett Adams; Dinh Q. Phung; Svetha Venkatesh; Daniel Gatica-Perez (ACM Multimedia, 2009)

Kodak moments and Flickr diamonds: how users shape large-scale media. - Radu Andrei Negoescu; Alexander C. Loui; Daniel Gatica-Perez (ACM Multimedia, 2010)

Modeling Flickr Communities Through Probabilistic Topic-Based Analysis. - Radu Andrei Negoescu; Daniel Gatica-Perez (IEEE Trans. Multim., 2010)

Modeling and Understanding Communities in Online Social Media using Probabilistic Methods. - Radu Andrei Negoescu (2011)