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DR. VIRACH SORNLERTLAMVANICH (LECTURER)
Faculty
:
School of Information, Computer, and Communication Technology (ICT)
Name
:
Dr. Virach Sornlertlamvanich (Lecturer)
Position
:
Lecturer
E - Mail
:
virach@siit.tu.ac.th, virach@gmail.com
Phone Rangsit
:
Phone Bangkadi
:
+66-2-501-3505~20
Phone Extension
:
6016
  Education
  • D.Eng. in Computer Science, Tokyo Institute of Technology, Japan
  • M.Eng. in Precision Mechanics, Kyoto University, Japan
  • B.Eng. in Precision Mechanics, Kyoto University, Japan
  Academic Awards
  • ASEAN Outstanding Engineering Achievement Award 2011, AFEO
  • Best paper award in 2009 ACM International Workshop on Intercultural Collaboration
  • Best paper award in 2009 National Conference on Computing and Information Technology
  • Consolation Prize for “Software and Device for Supporting Arm, Leg Disabled and Paralysis Impaired Persons in Using Computer”, awarded by Thai Research Council for Innovation in Science Technology and Industry section in 2005
  • The Most Outstanding Researcher of the Year 2003, in Information Technology and Communication, awarded by The National Research Council of Thailand
  • Consolation Prize for “Thai Text to Speech Engine”, awarded by Thai Research Council for Innovation in Science Technology and Industry section in 2002
  • Researcher of the Year 2001, awarded by The Nation Newspaper
  • 10 Best IT events of 2000, awarded by The Nation Newspaper to “ParSit” web-based machine translation service
  Research Areas
  • Natural Language Processing (NLP)
  • Machine translation
  • Knowledge representation
  • Interlingua (language intermediate representation)
  • Corpus-based approach NLP
  • Stochastic approach NLP
  • Syntactic and morphological analysis
  • Open source software activities
  • Information retrieval/extraction
  • Text summarization
  • Web language engineering
  • Social networking system
  • Mobile application
  • Data mining and big data
  Research Interests

Social Media Understanding

Text from social media is significant key information to understand social movement. However, the length of the social media text is typically short and concise with a lot of absent words. Our task is to identify the proper keyword representing the message content that we are accounting for. Instead of training the model for keyword extraction directly from the Twitter messages, we propose a new method to fine-tune the model trained from some known documents containing richer context information. We conducted the experiment on Twitter messages and expressed in word cloud timeline. It shows a promising result.

Asian WordNet (http://www.asianwordnet.org)

WordNet is widely used in NLP research because its important feature of computability. Each word in WordNet is expressed in a set of synonym words called synset, and defined in a semantic relational structure to each other. The based WordNet is created for the English language definition. Since the words in WordNet are defined by set of words, it is quite acceptable to generate other language WordNet by translating each word in the synset. We proposed an algorithm that can disambiguate the word by considering the synonym, and its English translation. Asian WordNet (AWN) is therefore generated for many Asian languages by using each local English dictionary.

Digitized Thailand (http://www.digitized-thailand.org)


The aim of the project is to create the country digital platform. We realize that many database and applications cannot be easily shared or connected to provide a higher integrated solution. Initially, the project stimulated the data digitization and application development following the provided API standard. Beyond the efforts in Digitized Thailand initiative, we created a huge useful database such as cultural information, language corpora, and in the same time many research algorithms such as word segmentation, keyword extraction, information extraction have also been developed to provide a service via the standard API.

Language Resource

In current statistical approach for NLP research, collections of language resources are crucial in generating the language model. Many types of language resources can be prepared depending on the purpose of study. They can be part-of-speech (POS) tagged corpus, bracketed corpus (syntactic and/or semantic annotated corpus, or parse tree corpus), parallel translated corpus, speech corpus and several types of lexicon. To generate such a kind of language resource there are many issues to overcome such as annotation consistency, word/phrase level alignment, multi level annotation, standardization since we have to handle a large number of language data.

  Work Experiences
  • 2015-Present: SIIT
  • 2010-2013: Principal Researcher, National Electronics and Computer Technology Center (NECTEC), Thailand
  • 2008-2010: Assistant Director, NECTEC, Thailand
  • 2004-2010: Director, Thai Computational Linguistics Laboratory (TCL), National Institute of Information and Communications Technology (NICT), Thailand
  • 2003-2004: Director, TCL, Communications Research Laboratory, Thailand
  • 2001-2003: Director, Information Research and Development Division (iTech), NECTEC, Thailand
  • 2000: Acting Director, iTech, NECTEC, Thailand
  • 1999-2000: Researcher, Software and Language engineering Laboratory (SLL), NECTEC, Thailand
  • 1999: Visiting Lecturer, United Nation University (UNU), Japan
  • 1998-1999: Visiting Researcher, Electrotechnical Laboratory, Japan
  • 1992-1995: Chief Researcher, Linguistics and Knowledge Science Laboratory (LINKS), NECTEC, Thailand
  • 1988-1992: Researcher, Center of the International Cooperation for Computerization (CICC), Japan
  • 1988-1992: Engineer, NEC Corporation, Japan
  • 1986-1988: Engineer, NEC Engineering (Thailand) Co., Ltd., Thailand
  Professional Activities
  • Director (2006-present) Asia-Pacific Association for Machine Translation (AAMT)
  • Executive Committee (2004-present) Asian Federation of NLP (AFNLP)
  • Specialist (2001-present) W3C
  • Specialist (2005-present) ISO/TC 37/SC 4 (Language resources management)
  • Specialist (2005-present) ISO/IEC JTC 1/SC 34 (Document description and processing languages)
  • Board member (2003-present) Asia Open Source Software Symposium (AOSS)
  List of Publications

International Conferences

  1. Phat Jotikabukkana; Virach Sornlertlamvanich; Yukari Shirota; and Takako Hashimoto (2016). Disaster consequence analysis of Thailand’s severe flood. In Proceedings of the 2016 International Workshop on Smart Info-Media Systems in Asia (SISA 2016), 14-17 September 2016, Phranakhon Si Ayutthaya, Thailand, pp. 12-16.
  2. Akanit Kwangkaew; Virach Sornlertlamvanich; Itsuo Kumazawa; and Siriya Skolthanarat (2016). ANN approach for predicting economic trends based on electric energy consumption during natural disaster period. In Proceedings of the 11th 2016 International Conference on Knowledge, Information and Creativity Support Systems (KICSS 2016), 10-11 November 2016, Yogyakarta, Indonesia, pp. 200-204.
  3. Htun, Htet Htet; Virach Sornlertlamvanich; and Boontawee Suntisrivaraporn (2016). Towards automatic generation of “preference profile” for primitive concept similarity measures on SNOMED CT. In Proceedings of the 11th 2016 International Conference on Knowledge, Information and Creativity Support Systems (KICSS 2016), 10-11 November 2016, Yogyakarta, Indonesia, pp. 194-199.
  4. Akanit Kwangkaew; Virach Sornlertlamvanich; Yukari Shirota; and Takako Hashimoto (2016). Electricity consumption in industrial segment on time series analysis. In Proceedings of the 2016 International Workshop on Smart Info-Media Systems in Asia (SISA 2016), 14-17 September 2016, Phranakhon Si Ayutthaya, Thailand, pp. 1-5.
  5. La-or Kovavisaruch; Taweesak Sanpechuda; Krisada Chinda; Virach Sornlertlamvanich; and Pobsit Kamonvej (2016). In Proceedings of the 13th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON 2016), 28 June - 1 July 2016, Chiang Mai, Thailand, 5 p.
  6. Virach Sornlertlamvanich; and Canasai Kruengkrai (2016). Effectiveness of keyword and semantic relation extraction for knowledge map generation, Lecture Notes in Computer Science: Lecture Notes in Artificial Intelligence: Worldwide Language Service Infrastructure: Proceedings of the 2nd International Workshop on Worldwide Language Service Infrastructure (WLSI 2015), 22-23 January 2015, Kyoto, Japan, Vol. 9442, 13 March 2016, pp. 188-199.
  7. Kiyoki, Yasushi; Xing Chen; Anneli Heimbürger; Petchporn Chawakitchareon; and Virach Sornlartlamvanich (2016). Cross-cultural and environmental data analysis in data mining processes for a global resilient society, Frontiers in Artificial Intelligence and Applications: Information Modelling and Knowledge Bases XXVII: Proceedings of the 25th International Conference on Information Modelling and Knowledge Bases (EJC 2015), 9-12 June 2015, Maribor, Slovenia, Vol. 280, February 2016, pp. 281-298.
  8. Phat Jotikabukkana; Virach Sornlertlamvanich; Okumura Manabu; and Choochart Haruechaiyasak (2015). Enhancement of social media text classification. In Proceedings of the 10th International Conference on Knowledge Information and Creativity Support Systems (KICSS 2015) [CD-ROM], 12-14 November 2015, Phuket, Thailand, pp. 186-195.
  9. Bang, Tran Sy; Choochart Haruechaiyasak; and Virach Sornlertlamvanich (2015). Vietnamese sentiment analysis based on term feature selection approach. In Proceedings of the 10th International Conference on Knowledge Information and Creativity Support Systems (KICSS 2015) [CD-ROM], 12-14 November 2015, Phuket, Thailand, pp. 196-204.
  10. Phat Jotikabukkana; Virach Sornlertlamvanich; Okumura Manabu; Choochart Haruechaiyasak (2015). Effectiveness of social media text classification by utilizing the online news category. In Proceedings of the 2nd International Conference on Advanced Informatics: Concepts, Theory and Applications (ICAICTA 2015), 19-22 August 2015, Chonburi, Thailand, 5 p.
  11. Virach Sornlertlamvanich; and Kobkrit Viriyayudhakorn (2014). Social movement understanding by keyword tracking, Frontiers in Artificial Intelligence and Applications: Information Modelling and Knowledge Bases XXVI: Proceedings of the 24th International Conference on Information Modelling and Knowledge Bases (EJC 2014), 3-6 June 2014, Kiel; Germany, Vol. 272, December 2014, pp. 464-468.