| Hyungsuk Ji's Home Page
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| Brief Introduction of Myself | |
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My main research interest is in modelling natural language. As demonstrated in recent studies, an understanding of the language-related cognitive capacities of humans that goes beyond the scope of natural language is crucial for designing a reliable, high-performance natural-language model. I have developed a computational model that is capable of automatically categorizing contextually-related words in a semantic representation, once it has been trained on a very large corpus. It could (1) serve as a model to account for human concepts and categorization processes, and (2) be used as a machine translation tool or other NLP tasks. The public version of the model can be tested on the Internet (the website address can be found in references). Upon completion of my thesis on computational modelling for my master's degree in physical chemistry, I decided to attack more intelligent modelling and make it my life-long interest. I began my study of cognitive science in France (licence, maîtrise, D.E.A. and doctor's degrees.). As shown in my resumé, my studies have focused on language-related modelling, which I consider the most interesting and challenging subject in cognitive science. I am planning to develop a semantic theory on the organization and evolution of words’ meaning that could be supported by a computational model that learns this capability automatically. |
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Hyungsuk Ji
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LED
(Language and Dialogue Team) |
tel.:
+33 (0)3 8359 2047 |
Education
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Ph.D. |
Institut National Polytechnique de Grenoble Cognitive Science. Dissertation: A Computational model for word sense representation using contextual relations |
France 2004 |
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D.E.A. |
Institut National Polytechnique de Grenoble Cognitive Science. Thesis: A Computational model for the representation of lexicons in phonological-semantic space |
France 2000 |
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Maîtrise |
University of Bordeaux II Cognitive Science. Thesis: Natural language production: simulation with IAC neural network (Interactive Activation and Competition network) |
France 1999 |
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B.S. |
University of Bordeaux II Cognitive Science |
France 1998 |
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M.S. |
Seoul National University (the most prestigious institution of higher education in South Korea) Chemistry. Thesis: Computational molecular dynamics simulation |
South Korea 1997 |
Academic position
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Postdoctoral fellow at INRIA, France (2004 – present) Fellowship awarded by INRIA (National Institute for Research in Computer Science and Automatic Control Engineering) |
Collaborative experience
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Research at LATL (Natural Language Analysis and Technology Lab) (2001 – 2003, discontinuous), Department of Linguistics, University of Geneva, Switzerland Eurodoc Scholarship awarded |
Publications
Hyungsuk Ji, Sabine Ploux and Eric Wehrli. (2003). Lexical knowledge representation with contexonyms. In Proceedings of the 9th MT summit, 194-201. (PDF, ps)
Hyungsuk Ji and Sabine Ploux. (2003). Automatic contexonym organizing model (ACOM). In Proceedings of the 25th Annual Conference of the Cognitive Science Society, 622-627. (PDF, ps)
Hyungsuk Ji and Sabine Ploux. (2003). A mental lexicon organization model.In Proceedings of the 4th Joint International Conference on Cognitive Science , 240-245. (PDF, ps)
Sabine Ploux and Hyungsuk Ji. (2003). A model for matching semantic maps between languages (French/English, English/French). Computational Linguistics , 29(2):155-178. (MIT Press(CL), PDF, ps)
Research interests
Corpus linguistics, unsupervised learning, data clustering, statistical machine translation
Word sense disambiguation, lexical knowledge acquisition, knowledge representation, semantic network
Cognitive linguistics, philosophy of mind, conceptual metaphor, lexical semantics, construction grammar, information retrieval
Related models/topics: Latent Semantic Analysis, Framenet, Head-driven phrase structure grammar, stochastic grammar, ontology, psycholinguistics
Technical skills / Academic service
C/C++, Java, Perl, Python, Prolog, Fortran, JavaScript, Shell scripting, Neural network design, etc.
Administrator of the FreeBSD/Linux Web server (2001 - 2004, academic research purpose): installation, configuration, and maintenance (http://dico.isc.cnrs.fr)
Maintenance programmer of C programs (2001 - 2004) and co-creator of the Java programs for the on-line computational linguistic model Atlas (http://dico.isc.cnrs.fr)
Creator of the ACOM (Automatic Contexonym Organizing Model) (http://dico.isc.cnrs.fr/dico/context/search)
Languages
Korean: native
English: near-native fluency
French: near-native fluency
Japanese and Chinese: reading/writing knowledge
Latin and Greek: reading knowledge