Hi,
I am interested in machine learning, information retrieval and, amongst other things, cycling. After a PhD in image retrieval and postdoctoral research in computer vision, I now spend much of my time providing research consultancy in London. I am also founder of the fashion search engine empora.com and, from time to time, add to this list of research publicationsParis - Nice 2010
15 August 2010
My personal Paris-Nice
in 3 days cycling challenge took place end of June. It's been a phantastic three
days on the bike and I look forward to repeating it in 2011. A few differences to previous years: A) I stayed south of the Loire between Nevers
and Digoin during my
first night, this turned
out to be much flatter and quieter than the departmental road a few kilometers to the north. B) Once in the Rhone valley at Andance, I stayed west of
the river until almost 40km before Orange, and thus avoided having to go through Montelimar and Valence. The road is quieter and the scenic
value a lot greater than on the N7. C) Once at the Mediterranean in Frejus I took the beautiful mountain road through the Foret
d'Esterel instead of following the gruelling ups and downs along the coast. It's one 25km climb up and then downhill all the way to Cannes. Awesome! All in all, these changes made it
quite a smooth ride. I didn't expect to beat my 2002 time and, frankly, I am happy that I managed to equal it.
It was the first time I rode without my shimano flightdeck or any other speedometer, and so only found out afterwards how much I had cycled each day: a whopping 350km on the first day, just over 250km on the second day, another 310km the third day, and 50km to the finish line in the early morning hours of the fourth day. Some pictures of the Paris-Nice trip.
Recruitment at Empora.com
24 July 2010
Empora.com is currently looking for a lead
developer to join our engineering team.
Morocco 2010
14 April 2010
A video from our Spring trip to Morocco, produced by one of the other pilots.
10 December 2009
This conference paper is a simple extension of the 1-bit quantisation of wavelet coefficients proposed by Jacobs, Finkelstein and Salesin in the
mid-90s. We show that a quantiser with four partition regions improves retrieval results and prove a few theorems that help to find optimal partition
sizes.
Unsupervised Grabcut (ICIP 2009)
14 October 2009
We developed an unsupervised version of Grabcut in which the initialisation step is automated, and propose a new stopping criterion based on the KL divergence between background and foreground
models.
Education
2001 - 2005 PhD Computer Science, Imperial College London2001 - 2005 BSc Mathematics, Open University
1997 - 2000 BA Biological Sciences, University of Oxford - St John's College