Natural Language Processing, Machine Learning, Logics, Artificial Intelligence

I am generally interested in a wide range of topics related to natural language processing. These span grammar formalisms, constraint logics, constraint solving, machine learning, learning of lexical relations, question answering systems, minimally supervised learning of syntax, semantics and morphology.

If you are interested in studying for a PhD then please contact me. Some of my current research themes are latent variable models (including quantum models) for compositional distributional semantics, community discovery using content and link analysis, answering complex questions, unsupervised learning of morphology, named entities and semantic relations.

Recent Projects

  • DisCo Project - A Unified Theory for Distributional and Compositional Semantics (EPSRC funded)
  • Indect EU FP7 IP Project (completed 2014)

Recent Activities

  • Aspect Based Sentiment Analysis (ABSA) SemEval Tasks 2014, 2015, 2016
  • Analysis of Clinical Text (ACT) SemEval Tasks 2014, 2015, 2016
  • CICLing 2014 Keynote on Challenges in Unsupervised Learning for NLP
  • Co-chair SemEval 2012 (Research Challenge in Computational Semantics)
  • Co-chair SemEval 2013 (Research Challenge in Computational Semantics)

Editorial Board Membership

Recent Program Committee Membership

  • 2010, 2011, 2012, 2013: Association of Computational Linguistics (ACL)
  • 2010, 2012, 2013, 2014: Empirical Methods in Natural Language Processing (EMNLP)
  • 2010, 2013, 2015: North American Chapter of the Association of Computational Linguistics (NAACL)
  • 2011, 2013, 2015: International Joint Conference in Artificial Intelligence (IJCAI)
  • 2014: American Association for Artificial Intelligence Conference (AAAI)
  • 2012, 2014: International Conference in Computational Linguistics (COLING)
  • 2014, 2015: International Conference on Intelligent Text Processing and Computational Linguistics (CICLing)
  • 2013: Language Resources and Evaluation Conference (LREC)
  • 2013, 2014, 2015: International Joint Conference in Lexical and Computational Semantics (*Sem)
  • 2015: Recent Advances in Natural Language Processing (RANLP)
  • 2012: AAAI International Conference on Weblogs and Social Media (ICWSM)