Information (theme 2)
preprint (not CWI, to be used with submitted papers)
Submission of a paper published in two articles in IEEE MultiMedia 11(2004)4, pp. 38-48, and IEEE MultiMedia (12(2005)1, pp. 54-63
Human-centered Data Analysis

Nack, F.-M, van Ossenbruggen, J.R, & Hardman, L. (2003). That obscure object of desire: multimedia metadata on the web. preprint (not CWI, to be used with submitted papers).