Natural Language Processing-Machine Translation Lab

Natural Language Processing or Computational Linguistics (NLP/CL) deals with understanding and developing computational theories of human language. Such theories allow us to understand the structure of language and build computer software that can process language,

NLP/CL is expected to play a major role in facilitating man-machine communication as well as man-man communication. Goals are to create computer systems that can speak and listen to users, machines that can translate from one language to another, thus bringing about a virtual revolution in access to information.

In the NLP-MT Lab at LTRC, IIIT-H, work is undertaken in many different sub-areas of NLP including syntax and parsing, semantics and word sense disambiguation, discourse and tree banking, machine translation, etc. Computational models are built inspired from linguistics, which are combined with machine learning techniques.

The Lab. and the Centre as a whole, has done original work on developing Computational Paninian Grammar (CPG) framework for Indian languages. Using such a framework, treebank for Indian languages have been developed. These provide a rich testbed for studying and understanding language in actual use, and are also used for developing parsers using machine learning. This has given rise to full sentence parsers with broad coverage for Indian languages.

Semantic processing involves developing semantic PurposeNet, semantic category assigners, identifying semantic relations in nominals, etc. Work has also been going on in discourse processing including development of discourse treebank and dialog processing.

Machine translation (MT) has been a driving application on which intense research is being done. Work is going on for English to Hindi MT as well as MT from one Indian language to another.

Sub Areas

Major Funded Projects

1. Indian language to Indian language machine translation : Consortium project (2006-2013) (Department of Information Technology (DIT), Govt. of India (GoI))
2. English to Indian language machine translation : Consortium project (2006-2009) (DIT, GoI)
3. Multi-Representational and Multi-Layered Treebank for Hindi and Urdu (2008-2011) (NSF, USA)
4. Development of Sanskrit Computational Toolkit and Sanskrit-Machine Translation system (2008-2011) (DIT, GoI)
5. Discourse and Dialog Management (2008-2011) (Tata Consultancy Services)
6. Language Database Development for Example Based Machine Translation (2003-2005) (DIT, GoI)
7. Multilingual Morphological Analysis and Chunking/Phrasing modules for Text-to-Speech (2003-2004) (Outside Echo Limited, UK)
8. lndian Language to lndian Language Machine Translation System (ILMT) Phase-II (2010-2013) (Department of Information Technology, Govt of India)
9. Dashboard Development Environment for NLP Applications (2009-2011) (Department of Information Technology, Govt of India)
10. Development of English to Indian Language Machine Translation System Phase-II (2010-2013) (Department of Information Technology, Govt of India)

Achievements

Contests

2. A Contest on Shallow Parsing for 3 Indian Languages (Hindi, Bengali & Telugu) in IJCAI-07: International Joint Conference on Artificial Intelligence and secured first place in the shared task held in the SPSAL Workshop during IJCAI-2007 (6-12 Jan 2007)
3. Shared Task Contest held as part of the Workshop on Named Entity Recognition for South and South East Asian Languages in IJCNLP-08: 3rd International Joint Conference on Natural Language Processing (7-12 Jan 2008)
4. IIIT students participated and won the contests in NLP Tools Contest and Student Paper Competition in ICON Conference (International Conference on Natural Language Processing) which is an annual event of the Centre.

Conferences Organized

1. ICON-2009: Seventh International Conference on Natural Language Processing at IIIT-H and University of Hyderabad, Dec 2009.
2. ICON-2008: Sixth International Conference on Natural Language Processing at CDAC Pune, Dec 2008
3. IJCNLP-08: 3rd International Joint Conference on Natural Language Processing, Hyderabd, Jan 2008
4. IASNLP: IIIT-Hyderabad Advanced School on Natural Language Processing, May 2008
5. TCS NLP Winter School, Dec 2007
6. ICON-2007: Fifth International Conference on Natural Language Processing at IIIT Hyderabad, Jan 2007
7. ICON-2005: Fourth International Conference on Natural Language Processing at IIT Kanpur, Dec 2005
8. ICON-2004: Third International Conference on Natural Language Processing at IIIT Hyderabad, Dec 2004
9. ICON-2003: Second International Conference on Natural Language Processing at CIIL Mysore, Dec 2003
10. ICON-2002: First International Conference on Natural Language Processing at NCST, Mumbai (presently called as CDAC-Mumbai), Dec 2002
11. ICON-2010: Eighth International Conference on Natural Language Processing at IIT Kharagpur, Dec 2010.
12. ICON-2011: Ninth International Conference on Natural Language Processing at Anna University, Chennai, Dec 2011.

Faculty

1. Radhika Mamidi
2. Soma Paul
3. Rajeev Sangal (Head)
4. Dipti Misra Sharma
5. Manish Shrivastava
6. Sriram Venkatapathy

Past Faculty

1. Prashanth Mannem

Past Lecturers/Research Lecturers

1. Samar Husain
2. Prashanth Mannem
3. Sriram Venkatapathy

Past Research Scientists/Engineers

1. anil.singh@iiit.ac.in Singh

Adjunct Faculty

1. B Lakshmi Bai

Students

1. K Varun
2. Pranav Garg
3. Sai Kiran Gorthi
4. BHAGWAT NACHIKET KISHOR
5. Akshay Kulkarni
6. Mudit Maheshwari
7. Hardeep Singh Rajpal
8. Y Jayendra Rakesh
9. A Vinay Bhargav Reddy
10. Himanshu Rustagi
11. Nitesh Surtani
12. Rahul Gupta
13. E Anil Krishna
14. Himanshu Sharma
15. Ajay Dubey
16. Sambhav Jain
17. M A Rafiya Begum
18. Susanta Kisore Mahakunda
19. Himani Chaudhry
20. Riyaz Ahmad Bhat

Past Students

1. Karthik Gali
2. Manohar Reddy
3. Ravikiran Vadlapudi Vadlapudi
4. Bharat Ram Ambati
5. Abhilash Inumella
6. Prashant Mathur
7. Vipul Mittal
8. Siva Reddy
9. phani_gadde@students.iiit.ac.in
10. meher_vijay@students.iiit.ac.in
11. Aswarth Abhilash
12. Sriram Anuroop
13. G S K Chaitanya
14. Kalyan Deepak
15. Raghu Pujitha Gade
16. Hemant Sagar
17. Nagaraju Yedlapalli
18. harika@students.iiit.ac.in
19. Manish Agarwal
20. Rahul Agrawal
21. B Krishna Chaitanya
22. Rahul Goutam
23. Ankush Gupta
24. B Indupriya
25. Karan Jindal
26. Prudhvi Kosaraju
27. Shashikant Muktyar
28. K V S Nikhil
29. D Nithin
30. K Sruthilaya Reddy
31. Rakshit Shah
32. R S Sruti
33. Navni Bhojwani
34. Pranav Goyal
35. Gupta Jayant
36. Puneeth Kukkadapu
37. Hitesh Kumar
38. Aman Mahajan
39. Sarvesh Ajit Ranade
40. Akula Arjun Reddy
41. R D Chinmayananda Reddy
42. Piyush Shukla
43. Ashok Vardhan
44. Ujjaval Verma
45. Suman Yelati
46. Itisree Jena
47. Viswanath Naidu
48. Sapna Sharma
49. gowri@students.iiit.ac.in
50. Katkar Geeta Mallappa
51. Nitin Kumar Hardeniya
52. Prasanth Kolachina
53. D V Sri Ram
54. Abhijeet Gupta
55. Sudheer Kolachina
56. R Ravi Teja
57. Suman Yelati
58. PVS Avinesh
59. Anil Kumar Singh
60. Arafat Ahsan
61. Renjini Narendranath
62. Serajul Afreen
63. Sriram Venkatapathy
64. Prashanth Mannem
65. P Kiran Mayee
66. Ritu Notani
67. Aman Kumar Bahl
68. Harshit Jain