Chien-Ju HoTsung-Hsiang ChangJane Yung-jen Hsu2010-10-282018-07-052010-10-282018-07-052007http://ntur.lib.ntu.edu.tw//handle/246246/219574en-USPhotoSlap: A multi-player online game for semantic annotationconference paperhttp://ntur.lib.ntu.edu.tw/bitstream/246246/219574/1/13.pdf