I am a researcher at ISSCO,
at the University of Geneva on the
IM2 Project, a large Swiss project on Multimodal Information Management.
I will be working on discourse parsing.
I am also a participant in the PASCAL Network of Excellence.
Before that I worked on the
Learning Computational Grammars project which is part of the
TMR Network.
In 2001, I completed my DPhil at COGS
in the University of Sussex, supervised by Bill Keller.
I can be reached at
asc@aclark.demon.co.uk
I am interested in the unsupervised acquisition of linguistic structure at all levels; at the moment I am particularly interested in morphology, and syntactic categories and the morpho-syntactic interface.
A motivation for this work is to examine the Argument from the Poverty of the Stimulus, and whether it can be refuted by looking at the behaviour of unsupervised
machine learning techniques on large natural language corpora.
Personal
Here are some (non research) links that I find useful.
Reports
- Machine Learning Approaches to Shallow Parsing:
A Literature Review, Alexander Clark (2003)
Deliverable for IM2 project.
[PDF]
Publications and dissertations.
Here is a BibTeX file for all of these that have appeared clark.bib.
- Alexander Clark (2004)
Grammatical Inference and the Argument from the Poverty of the Stimulus, AAAI Spring Symposium on Interdisciplinary Approaches to Language Learning, Stanford CA [PDF]
(to appear)
- Alexander Clark and Andrei Popescu-Belis (2004) Multi-level Dialogue Act Tags, Proceedings of 5th SIGdial Workshop on Discourse and Dialogue, Boston MA.[PDF] (to appear)
- Alexander Clark (2003)
Pre-processing very noisy text,
Proceedings of Workshop on Shallow Processing of Large Corpora, Corpus Linguistics 2003, Lancaster.
[Postscript][PDF]
- Alexander Clark (2003)
Combining Distributional and Morphological Information for Part of Speech Induction,
Proceedings of EACL 2003,
[Postscript][PDF]
- Franck Thollard and Alexander Clark (2002)
Shallow Parsing using Probabilistic Grammatical Inference,
Proceedings of the 6th International Colloquium on Grammatical Inference,
(ICGI-2002)
[Postscript][PDF]
Amsterdam, the Netherlands
- Franck Thollard and Alexander Clark (2002)
Apprentissage d'Automates Probabilistes Déterministes,
Proceedings of CAp2002
[Postscript][PDF]
- Franck Thollard and Alexander Clark (2002)
Détection de Groupes Nominaux par Inférence Grammaticale Probabiliste,
Proceedings of CAp2002
[Postscript][PDF]
- Alexander Clark (2002)
Memory-Based Learning of Morphology with Stochastic Transducers,
Proceedings of ACL 2002, Philadelphia, USA (to appear)
[Postscript][PDF]
- Alexander Clark (2001)
Unsupervised Language Acquisition: Theory and Practice,
DPhil Thesis, University of Sussex, December 2001
[PDF]
- Alexander Clark (2001)
Learning Morphology with Pair Hidden Markov Models,
Proceedings of the Student Workshop at ACL 2001, July 2001, Toulouse, France.
[Postscript][PDF]
- Alexander Clark (2001)
Unsupervised Induction of Stochastic Context-Free Grammars using Distributional Clustering,
Proceedings of CoNLL 2001, July 2001, Toulouse, France.
[Postscript][PDF]
- Alexander Clark (2001)
Partially Supervised Learning of Morphology with Stochastic Transducers,
Proceedings of Natural Language Processing Pacific Rim Symposium (NLPRS) 2001,
November 2001, Tokyo.
[Postscript][PDF]
- Alexander Clark (2000)
Inducing Syntactic Categories by Context Distribution Clustering,
Proceedings of CoNLL 2000, September 2000, Lisbon.
[Postscript][PDF,]
- Alexander Clark (1998)
Inducing fields in NLP.
MSc Dissertation at University of Sussex.
[ Compressed postscript]
This was an experiment on the use of random fields to produce a statistical model over trees in the Susanne Corpus.
Last modified $Date: 2004/03/18 17:35:52 $