Divertido buscador de fotos nos álbuns do FLICK, usando uma curiosa e lúdica interface: você rabisca as cores e o localizador traz as fotos que se encaixem!
Retrievr is an experimental service which lets you search and explore in a selection of Flickr images by drawing a rough sketch. Currently the index contains many of Flickr's most interesting images. If you'd like to have your images (or the images for a
F. Lemmerich, and M. Atzmueller. Privacy, security, risk and trust (passat), 2011 ieee third international conference on and 2011 ieee third international conference on social computing (socialcom), page 1356 -1363. (2011)
F. Abel, N. Henze, E. Herder, and D. Krause. User Modeling, Adaptation, and Personalization, volume 6075 of Lecture Notes in Computer Science, Springer Berlin Heidelberg, (2010)