E-mail: andreas.vlachos AT cl.cam.ac.uk.
I am a postdoc in the Computer Laboratory at the University of Cambridge working with Stephen Clark on semantic parsing in the context of the SpaceBook project. Earlier, I was a postdoc in the department of Biostatistics and Medical Informatics at the University of Wisconsin-Madison working with Mark Craven on information extraction from biomedical text. From October 2006 until December 2009, I was a PhD student at the NLIP group of the Computer Laboratory at the University of Cambridge under the supervision of Ted Briscoe, receiving further advice from Zoubin Ghahramani. My thesis explored ways of reducing the annotation cost for biomedical natural language processing and I was funded by a Gates award. Before that, from November 2004 until September 2006, I worked on the project: Integrating Literature, Experiments and Curation in Drosophila Genomics Research. I hold an MSc in Informatics from the University of Edinburgh and a BSc from the Athens University of Economics and Business.
Vlachos, A. 2012. An investigation of imitation learning algorithms for structured prediction, presented at the 10th European Workshop in Reinforcement Learning, JMLR W&C Proceedings, Vol. 24.
Vlachos, A., Craven, M. 2012. Biomedical event extraction from abstracts and full papers using search-based structured prediction, PDF, HTML in BMC Bioinformatics, Volume 13, Supplement 11. The code to train and evaluate the systems described in this paper is available upon request.
Vlachos, A. 2011. Evaluating unsupervised learning for natural language processing tasks, in Proceedings of the EMNLP 2011 Workshop on Unsupervised Learning in NLP, Edinburgh.
Vlachos, A. 2010. Two strong baselines for the BioNLP 2009 event extraction task, in Proceedings of BioNLP at ACL, Uppsala. The code to train and evaluate the systems described in this paper is available upon request.
Vlachos, A., Craven, M. 2010. Detecting Speculative Language using Syntactic Dependencies and Logistic Regression, in Proceedings of the CoNLL shared task at ACL, Uppsala.
Van Gael, J., Vlachos, A., Ghahramani, Z. 2009. The infinite HMM for unsupervised PoS tagging, in Proceedings of EMNLP, pages 678-687, Singapore.
Vlachos, A., Korhonen, A., Ghahramani, Z. 2009. Unsupervised and Constrained Dirichlet Process Mixture Models for Verb Clustering, in Proceedings of the workshop on GEometrical Models of Natural Language Semantics at EACL, Athens.
Vlachos, A. 2008. A stopping criterion for active learning, draft, publisher's website, in Computer, Speech and Language, Volume 22, Issue 3, July 2008, pages 295-312.
Vlachos, A. 2006. Active Annotation, in Proceedings of the workshop on Adaptive Text Extraction and Mining at EACL, Trento.
Reviewer for: ACL, EMNLP, IJCAI, AAAI, CoNLL, EACL, Journal of Artificial Intelligence Research, ACM Transactions in Speech and Language Processing, Bioinformatics, Journal of Biomedical Informatics, Computer Speech and Language, Journal of Natural Language Engineering.
Consulting services in applications of natural language processing in various domains, including legal documents and biomedicine.
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