David Ward
Email: djw30 at mrao.cam.ac.uk
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New
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Who am I?
I graduated from Churchill
College in 1998 with a BA and MSci in Natural Sciences.
I completed my PhD with the Inference Group in 2001.
I now work at Spiral Software in Cambridge.
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Research
Human-Computer-Interaction
Dasher
is a text entry interface currently under development. It uses a PPM compression
algorithm as a basis for language modelling. I've presented a paper on
Dasher at UIST 2000. See below for the postscript.
Language Modelling
I have developed the Dirichlet
Language Model to reduce redundancy.
I have been working on Restricted Boltzmann machines as language
models. These are inspired by Geoff Hinton's Product of Experts
learning algorithm.
I have also developed Neural
Networks as language models. On toy problems, these outperform PPM, the state-of-the
art text compression algorithm.
Papers
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Neural Networks
My recent talk on Modelling Discrete with Neural Neworks demonstrated
PPM-beating models.
The slides can be
downloaded here:
Compressed Postscipt:nettalk.ps.gz
PDF: nettalk.pdf
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Eye-tracking
Hardware
We have an eye-tracker from
EyeTech Digital Systems. It
consists of two infra-red emitters, and a camera which plugs into the
back of a PC.
Software
MS Windows
The system as supplied with software which works on Windows.
Linux
The infra-red camera is connected to a PCX framegrabber, manufactured
by Imagenation. They have
supply PXC drivers for both Windows and Linux.
Dasher
Dasher is a data-entry inteface which can be
used with an eyetracker.
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David Ward's Papers
2001
2000
1999
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For Sale
Windsurfing board.
F2 Axxis 278, 103 litres, fin.
About 6 years old, hardly used, brilliant condition.
250 pounds.
Can deliver to Cambridge area.
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Interests
 
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Photos
PhD graduation - 23rd March 2002
XS Latin
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Site last modified Mon Jun 9 15:01:44 BST 2003
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