His Ph.D. thesis is in http://www.cs.nyu.edu/web/Research/Theses/hung-hsien_chang.pdf http://www.cs.nyu.edu/web/Research/Theses/hung-hsien_chang.p... Hung-Hsie

His Ph.D. thesis is in http://www.cs.nyu.edu/web/Research/Theses/hung-hsien_chang.pdf http://www.cs.nyu.edu/web/Research/Theses/hung-hsien_chang.p... Hung-Hsien, Chang Enriched Content: Concept, Architecture, Implementation, and Applications I went to the NYU CS Grad at the same time with him. I never heard this story from him.