Iain Campbell Ph.D.


My picture.  Click to hear my voice.   I do research in the IR group of Keith van Rijsbergen, here in the Department of Computing Science, at the University of Glasgow.

I fund my research myself through my main career as an information technology consultant. After a three year break to concentrate solely on research, I am once again applying leading edge IR and network technologies in commercial environments both in the UK and abroad. This page is research-oriented and is not intended to represent the commercial aspects of my interests and activities. So, if you want more info on that, contact me.

If you're looking specifically for the telecom/datacom billing-software company in which I am a partner (Hoberg & Vestrheim AS), go to www.billing.no.

Contacting me

address: Computing Science
University of Glasgow
Glasgow G12 8QQ
SCOTLAND
 
email:iain@dcs.gla.ac.uk
telephone:+44 141 330 6292
fax:+44 141 330 4913
 
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Research interest: Modelling information space browsing using Ostension and Probability.

The idea is to develop and demonstrate a new model for browsing in large collections of information-objects, in particular multimedia objects. The model I have developed is both independent of the types of the objects being browsed, and of the retrieval models being used to structure the space.
The work has involved the formalisation of a model for the space in which the browsing takes place, the development of a suitable model of users' searching/browsing behaviour, the extension of the relevance feedback mechanism of the probabilistic retrieval model, the implementation of a highly efficient IR engine, and a graphical user-interface presenting a sphere-like browsing surface.

The work centres around the reduction of the procedural aspects of interaction with a system and a corresponding concentration upon the functional aspects. Queries are dropped completely from the approach. They are replaced by ostensive probabilistic evidence gathering and combination techniques. An important aspect of those techniques is the discounting of evidential weight with respect to age. This has resulted in, amongst other things, a formal manner by which varying degrees or relevance can be incorporated into probabilistic relevance feedback mechanisms.

Publications that have already been produced by this work are here. The project has progressed substantially since those papers. For more up-to-date information, contact me directly.


Misc.

When I'm actually in the department, I share room F081 with Ian Ruthven, Martin Gardner, and Mirna Adriani. Across the hall in room F082 you'll find Marcos Theophylactou and Tassos Tombros. Gone, but not forgotten, are Mark Sanderson, Mark Magennis, Fabio Crestani, and Jane Reid.


Links