Research
My research interests concern the areas of information retrieval and multimedia information extraction. I give particular emphasis to the extraction of semantic information from multimedia content,
and its applications, e.g., adaptive
information retrieval or search by semantic example. I
apply several statistical
learning algorithms such as linear models and EM clustering
learning algorithms to the area of information processing and
analysis (search applications, network intrusion, traffic modelling,
etc). Feel free to visit my research page.
Publications
Selected publications:
J. Magalhães, F. Ciravegna, S. Rüger, "Exploring multimedia in a keyword space," accepted for publication at ACM Multimedia, Vancouver, Canada, October 2008.
J. Magalhães, S. Rüger, "Information theoretic semantic multimedia indexing," ACM Conference on Image and Video Retrieval CIVR, best paper award, Amsterdam, Holland, July 2007.
J. Magalhães, F. Pereira, “Using MPEG standards for multimedia customization”, Signal Processing: Image Communication, vol. 19, no. 5, pp. 437 - 456, May 2004.
more.
Software
Most of my research is implemented as part of a set of tools that I use in my work. In an extraordinary moment of inspiration I named it Multimedia Information Retrieval C++ SDK. Find out more.
Bio
I am currently a PhD candidate at the Department of Computing, Imperial College London, working in the area of semantic-multimedia analysis and indexing. My main research interests are on statistical modelling, information extraction and related applications.
I received both the Electrical Engineering degree (5 years degree) and the M.Sc. (2 years degree) from the Instituto Superior Técnico, Lisbon, Portugal.
Currently I'm an Assistente in the area of Data Networks at the Instituto Superior de Engenharia de Lisboa (ISEL) with a leave to do a PhD at Imperial College London. In 2002 I received the Innovation Award - Young Engineer awarded by the Portuguese national engineering association for the research done on Mobile Multimedia Communications. From 1997 to 2003 I worked at Siemens R&D Portugal in the Telecommunication Networks Dep. (1997-2000) and in the Multimedia Solutions Dep. (2000-2003).