Career
He has published over a dozen books and 150 scientific articles in the areas of multimedia search, computer vision, human computer interaction, and information retrieval. Notably, he had the most cited paper in the highest impact multimedia research journal indexed by the Web of Science (Inter-Services Intelligence Thomson Reuters), and the most cited article from the Association for Computing Machinery (ACM) International Conference on Multimedia Information Retrieval in 2008 and also in 2010. His work is frequently cited in both scientific and popular news sources.