More recent information and publications can be found on my
IBM web page .
I finished my PhD in the
Speech, Vision and Robotics
Cambridge University Engineering Department in 2001.
My advisor was
Professor Steve Young.
I spent some of my PhD at
Center for Language and Speech
The Johns Hopkins University,
where I worked with
Dr Bill Byrne
and Dr Sanjeev Khudanpur, and at
in the University of
Washington, where I worked with Professor Mari Ostendorf.
I will be spending 2001-2003 at
specifically the TJ Watson Research Center in Yorktown Heights, New York.
My thesis research looked at techniques for improving
the robustness of automatic speech
recognition systems to variation in speaking style,
- explicit modelling of pronunciation change in conversational
speech, using statistical techniques motivated by linear phonology;
- implicit modelling of pronunciation change, through
the use of a variety of
directed graphical models motivated by nonlinear
- articulatory and phonological representations of speech;
- automatic induction of acoustic modelling units.
I also did a little work on the DARPA meeting transcription project
and the SPINE noise robustness task.
A postscript list of publications can be found here.
Some are available on-line from the SVR ftp site.
Email: hjn11 AT eng.cam.ac.uk
Cambridge University Engineering Department,
Cambridge, CB2 1PZ. UK.