I am working on many aspects related to information retrieval. From 2002 to 2007, I co-led the INEX initiative, which is the evaluation forum for XML retrieval. I am now working on aggregated search, applying the quantum theory formalism to model interactive information retrieval, and technologies for bridging the digital divide. I am currently "slowly" returning to evaluation, but this time in the context of web search and portal.
I currently hold a Microsoft/Royal Academy of Engineering Research Chair in Information Retrieval in the Department of Computing Science at the University of Glasgow. Before joining Glasgow, I was a Professor of Information Retrieval in the Department of Computer Science at Queen Mary, University of London. I was the ACM SIGIR Vice Chair from 2007 to 2010.