IIIT logo Prof. Rajeev Sangal
International Institute of Information Technology - Hyderabad

                     Curriculum Vita

I am the founder-head of Language Technologies Research Centre, at IIIT, Hyderabad, India, the largest academic centre for computational linguistics (CL) research in this region of the world.

I have worked on Computational Paninian Grammar framework which is linguistically elegant and computationally efficient. It is a dependency grammar based framework, particularly well suited for morphologically rich and free word-order languages. Constraint-based parser for it uses integer programming and bipartite graph matching. I also work on machine learning of parsing, reaching high accuracy even with a small treebank. High accuracy has been reached by following two approaches: (1) introducing two-stage parsing, handling intra-clausal and inter-clausal relations (besides other stages as well), and (2) using light semantics with just two semantic features (animacy, humanness).

I am engaged in an NSF sponsored joint US-India project for constructing a dependency treebank for Hindi and Urdu (understood by a billion people).

I lead a consortium of 11 institutions for building machine translation systems for 9 Indian language pairs (bidirectional), some of which have been deployed over the net.

I also lead a newly established research university, namely IIIT-H, as its Director (Vice Chancellor). The new university has an innovative academic structure around research centres rather than departments, a research oriented undergraduate curriculum, an integrated UG cum masters program in CL, Human Values as a part of academic curriculum, etc.

I was a member of the editorial board of Computational Linguistics in 2004-06 and of Computer Science and Informatics journal during 1995-2003.

I have been the founding President of NLP Association India since 2002, have established a quality annual conference series called ICON, held special summer and winter schools and workshops, as well as competitive evaluations, etc. I was the local organizing chair for IJCNLP-08 and IJCAI-07. Substantial support has come from Microsoft, HP, Yahoo, Google, TCS, Infosys, Rediff, etc. to build a strong CL community in India, which has been linked to the larger Asian Community.

I have helped make human values course a regular part of the academic curriculum at IIIT-H. It is playing a major role in shaping the atmosphere, and drawing attention to larger human and societal concerns. I was the Organizing Chair of the National Convention of Value Education based on Jeevan Vidya at IIT Delhi in May 2007.

Dec 2002 onwards Founding President, NLP Assoc. of India
2004 - 2006Member, Editorial Board, Computational Linguistics journal, ACL.
2006 - Member, Editorial Board, Corpora journal.
1995 - 2003 Member, Editorial Board, Computer Society of India

April 1996 to June 1998 Head, IIT Kanpur Centre for NLP at Hyderabad
1996-1998 Member, National Review Committee for PG programmes in Engg., India
April 1991 to March 1995 Member, Scientific Council, CEFIPRA, Indo-French Centre for the Promotion of Advanced Research
June 1987 to July 1990 Head, Dept. of Computer Sc. & Engg., I.I.T. Kanpur

Fellow of Indian National Academy of Engineers (Awarded Oct. 2009)
Sanskrit Mitra Puraskar, 2004 (by Central Sanskrit Board.) [Awards committee chaired by Hon'ble Justice Ranganath Mishra]
Computers and Linguistics, by Dravidian Linguistics Association, 1993.

1980 Ph.D. University of Pennsylvania Computer & Info. Sc.
1978 M.S. University of Pennsylvania Computer & Info. Sc.
1975 B.Tech. Indian Institute of Technology, Kanpur Electrical Engg.


(I have authored 4 books. Some selected research papers are shown below)
  • Bharati, Akshar, Samar Husain, Phani Gadde, Bharat Ambati, Dipti M Sharma, and Rajeev Sangal
    A modular cascaded approach to complete parsing,
    In Proceedings of the COLIPS International Conference on Asian Language Processing 2009 (IALP). Singapore. Aug. 2009.
  • Bharati, Akshar, Samar Husain, Dipti M Sharma, and Rajeev Sangal,
    Two stage constraint based hybrid approach to free word order language dependency parsing
    In Proceedings of the 11th International Conference on Parsing Technologies (IWPT). Paris. Aug. 2009.
  • Bharati, Akshar, Samar Husain, Bharat Ambati, Sambhav Jain, Dipti M Sharma and Rajeev Sangal.
    Two semantic features make all the difference in Parsing accuracy.,
    In "ICON-2008: 6th International Conference on Natural Language Processing,
    Hemant Darbari, Dipti M Sharma and Rajeev Sangal (editors), MacMillan, New Delhi, 2008.
  • Bharati, Akshar, Samar Husain, Dipti Misra Sharma and Rajeev Sangal,
    A two-stage constraint based dependency parser for free word order languages,
    In Proceedings of the COLIPS International Conference on Asian Language Processing 2008 (IALP),
    Chiang Mai, Thailand. 2008.
  • Mayee, P Kiran, Rajeev Sangal, Soma Paul and Navjyoti Singh,
    An Ontological Resource Organized Around Purpose,
    In "ICON-2008: 6th International Conference on Natural Language Processing,
    Hemant Darbari, Dipti M Sharma and Rajeev Sangal (editors), MacMillan, New Delhi, 2008.
  • Gorla, Jagadeesh, Anil Kumar Singh, Rajeev Sangal, Karthik Gali, Samar Husain and Sriram Venkatapathy,
    A Graph Based Method for Building Multilingual Weakly Supervised Dependency Parsers,
    In 6th International Conference on Natural Language Processing,
    GoTAL 2008 Gothenburg, Sweden, August 25-27, 2008
  • Begum, Rafiya, Samar Husain, Arun Dhwaj, Dipti Misra Sharma, Lakshmi Bai and Rajeev Sangal, Dependency Annotation Scheme for Indian Languages,
    In Proceedings of The Third International Joint Conference on Natural Language Processing (IJCNLP). Hyderabad, India. 2008(Published in ACL anthology)
  • Gorla, Jagadeesh, Amit Goyal, Rajeev Sangal,
    Two Approaches for Building an Unsupervised Dependency Parser and Their Other Applications.
    AAAI 2007. pp.1860-1861.
  • Bharati, Akshar, U. Rohini, P. Vishnu, Sushama Bendre, and Rajeev Sangal,
    A Hybrid Approach to Single and Multiple PP-Attachment Using Wordnet,
    Intl. Joint Conf. on Natural Language Processing (IJCNLP),
    South Korea, 2005.
  • Singh, Akshay, Sushama Bendre, and Rajeev Sangal,
    HMM based Chunker for Hindi, Proc. of Posters,
    Intl. Joint Conf. on Natural Language Processing (IJCNLP),
    South Korea, 2005.
  • Bharati, Akshar, Rajeev Sangal, Dipti Misra Sharma, and Rahika Mamidi,
    Generic Morphological Analysis Shell, Proc. of Workshop on First Steps for Language Documentation of Minority Languages (SALTMIL),
    LREC 2004, ELRA, Lisbon, May 2004.
  • Bharati, Akshar, Rajeev Sangal, Dipti Mishra, Sriram Venkatapathy, and T. Papi Reddy,
    Handling Multi-Word Expressions without Explicit Linguistic Rules in an MT System, TSD, Lecture Notes in Computer Science, Vol. 3206,
    Springer Verlag, 2004, pp.31.
  • Bharati, Akshar, Rajeev Sangal, SM Bendre, Pavan Kumar, Aishwarya,
    "Unsupervised Improvement of Morphological Analyzer for Inflectionally Rich Languages",
    In Proc. of 6th NLP Pacific Rim Symposium, 27-30 November 2001,
  • Bharati, Akshar, Sushma Bendre, and Rajeev Sangal,
    "Some Observations on Corpora of Some Indian Languages",
    Knowledge-Based Computer Systems,
    Tata McGraw-Hill, Dec. 1998c.
  • Bharati, Akshar, Ashok Gupta and Rajeev Sangal,
    "Parsing with Nesting Constraints",
    Proc of 3rd NLP Pacific Rim Symposium, 4-6 December 1995,
    Seoul, S. Korea.
  • Bharati, Akshar and Rajeev Sangal,
    "Parsing Free Word Order Languages in the Paninian Framework",
    ACL93: Proc. of Annual Meeting of Association for Computational Linguistics, Association for Computational Linguistics,
    New Jersey, 1993a, pp. 105-111.

  • Programming Paradigm in LISP
    Sangal, Rajeev
    McGraw Hill, New York, 1991. (Internatation student edition by McGraw Hill-Kogakusha, Singapore, 1992.)
  • LISP Programming
    Sangal, Rajeev
    Tata-McGraw Hill, New Delhi, 1995.
  • Natural Language Processing: A Paninian Perspective
    Bharati, Akshar, Vineet Chaitanya and Rajeev Sangal
    Prentice-Hall of India, New Delhi, 1995.
  • anuvada ke upakarana: sanganaka tathA bhaashaae (Tools of Translation: Computer and Languages)
    Bharati, Akshar, Amba P Kulkarni, Vineet Chaitanya and Rajeev Sangal
    University of Hyderabad, Distance Education Programme, Hyderabad, Feb 1998.
  • A Foundation Course in Human Values and Professional Ethics
    RR Gaur, Rajeev Sangal, GP Bagaria
    Excel Books, New Delhi, 2010.
January 2010