I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind; it may be the beginning of knowledge, but you have scarcely, in your thoughts, advanced to the stage of science, whatever the matter may be.

--William Thomson, 1st Baron Kelvin. Lecture on "Electrical Units of Measurement", Six Lectures on "The Practical Applications of Electricity.", Institution of Civil Engineers, May 3, 1883.

Semantic Machine Translation Evaluation; machine translation; semantic analysis of text; multilingual natural language processing, text and data mining; machine learning and artificial intelligence.

  • Fifth Conference on Machine Translation (WMT 2020)
    • Quality evaluation metrics shared task
      • Tied for the 1st place in thirteen of the eighteen translation directions at system level correlation with human
      • 1st place in one of the sixteen translation directions at document level correlation with human
      • 1st place in one of the eighteen translation directions at sentence level correlation with human
    • Quality estimation metrics shared task
      • 1st place in six, tied for the 1st place in one of the eighteen translation directions at system level correlation with human
      • 1st place in four of the sixteen translation directions at document level correlation with human
      • 1st place in two of the eighteen translation directions at sentence level correlation with human
    • Parallel corpus filtering and alignment shared task
      • 2nd place in one, 3rd place in one and 4th place in two of the four filtering test cases
      • 2nd place in all four alignment test cases 
  • Fourth Conference on Machine Translation (WMT 2019)
    • Quality evaluation metrics shared task
      • 1st place in two and tied for the 1st place in fourteen of the eighteen translation directions at system level correlation with human
      • 1st place in nine and tied for the 1st place in nine of the eighteen translation directions at sentence level correlation with human
    • Quality estimation metrics shared task
      • 1st place in one, tied for the 1st place in five and the only participant in six of the eighteen translation directions at system level correlation with human
      • 1st place in six, tied for the 1st place in two and the only participant in six of the eighteen translation directions at sentence level correlation with human
    • News translation shared task
      • Tied for the 3rd place in human evaluation for the constrained Kazakh-English system
    • Parallel corpus filtering shared task
      • 3rd place in three, 4th place in two and 5th place in one of the eight test cases
  • Third Conference on Machine Translation (WMT 2018)
    • Quality evaluation metrics shared task
      • 1st place in three of the fourteen translation directions at system level correlation with human
      • Tied for the 1st place in ten of the fourteen translation directions at sentence correlation with human
    • Parallel corpus filtering shared task
      • Tied for the 2nd place in two, tied for the 6th place in one and the 8th place in one of the four test cases
      • 6th place overall
      • one of the only four submissions that ranked top 10 in all test cases
  • Second Conference on Machine Translation (WMT 2017)
    • Quality evaluation metrics shared task
      • 1st place in two of the nineteen translation directions at system level correlation with human
      • 1st place in five and tied for the 1st place in twelve out of nineteen translation directions at sentence level correlation with human
    • News translation shared task
      • Tied for the 1st place in human evaluation for the constrained Russian-English system
      • 4th place in human evaluation for the constrained Chinese-English system
  • First Conference on Machine Translation (WMT 2016)
    • News translation shared task
      • 2nd place in human evaluation for the constrained Russian-English system
  • Eighth Workshop on Machine Translation (WMT 2013)
    • Quality evaluation metrics shared task
      • 1st place in Czech-English system-level correlation with human
  • US Defense Advanced Research Projects Agency (DARPA) Funded
    • Quantitative Crisis Response (QCR)
    • Broad Operational Language Translation (BOLT)
    • Global Autonomous Language Exploitation (GALE)
  • EU 7th Framework Programme (FP7) Funded
    • Bridges Across the Language Divide (EU-BRIDGE)
  • Hong Kong Research Grants Council (RGC) Funded
    • Semantically Driven Training for Statistical Machine Translation
    • Learning Lexical Semantics for Statistical Machine Translation
    • Hong Kong Innovation and Technology Fund (ITF) Funded
    • Next Generation Online Multimedia Collaboration System
  • Co-editor
    • Special issue on "Multilingual Representations for NLP" of Natural Language Processing Research (NLPR), Atlantis Press
  • Area Co-chair
    • Machine Translation and Multilinguality, Association for Computational Linguistics (ACL) 2020
  • Organizing Committee
    • Diversity and Inclusion Committee Co-chair, Empirical Methods in Natural Language Processing (EMNLP) 2019
    • Program Co-char, Ottawa-AI Alliance Workshop 2019
  •  Reviewer
    • Journals
      • Computational Linguistics Journal (CL) 2016, 2019
      • Natural Language Engineering Journal (NLE) 2020
    •  Conferences
      • Association for Computational Linguistics (ACL) 2017, 2019
      • Empirical Methods in Natural Language Processing (EMNLP) 2015
      • International Conference on Computational Linguistics (Coling) 2016
      • North American Chapter of the Association for Computational Linguistics (NAACL) 2016
      • International Joint Conference on Natural Language Processing (IJCNLP) 2013
      • Canadian AI 2020
    • Workshops
      • Workshop on Semantics-Driven Machine Translation (S2MT, SedMT) 2016
      • Workshop on Syntax, Semantics and Structure in Statistical Translation (SSST) 2013, 2014, 2015
      • Recent Advances in Natural Language Processing (RANLP) 2013
  • Helper in local organizing committee
    • Annual Meeting of the Association for the Computational Linguistics (ACL) 2011, 2014
    • International Workshop on Spoken Language Translation (IWSLT) 2012
    • International Conference on Computer-Aided Design and Computer Graphics (CAD/CG) 2005