Dr. S. Mahesan
- Senior Lecturer Gr.I
-
B.Sc. [Hons] (Jaffna), M.Sc.(Cardiff),
Ph.D.(Wales), MBCS, CEng, CITP - mahesans@univ.jfn.ac.lk
- +94212218194
Research Interests:
Knowledge Representation, Natural Language Processing, Automata Theory, Intelligent Systems, Information Systems, High Performance Computing, Numerical Computing, Image Processing and BioInformatics
Academic Profile
Activities
Admin Roles
Publications
Teaching
Academic Profile
Dr. Sinnathamby Mahesan
- Ph.D. in Computer Science (Wales, UK)
- M.Sc. in Computer Science (Cardiff, UK)
- B.Sc. Special in Statistics (Jaffna, Sri Lanka)
Postgraduate Supervision
PhD
- Dr. (Mrs.) B. Mayurathan, “Efficient and Compact Codebook Design for Scene Analysis and Object Localisation”, University of Peradeniya, Sri Lanka. Degree awarded in 2015 [Supervisor: Dr. (Ms.) U.A.J. Pinidiyaarachchi (University of Peradeniya), Dr. S. Mahesan and Prof. M. Niranjan (University of Southampton, UK)]
- Dr. (Mrs) K. Chandrasekar, “Information System for Recording and Reporting of Communicable Diseases in Sri Lanka”, University of Jaffna. Degree awarded in 2012. [Supervisor: Dr. Peter A. Bath (University of Sheffield, UK)]
MPhil
- Mrs. S. Thavareesan, “Machine Learning Approach to Performing Sentiment Analysis on Tamil Articles.”, Reading for MPhil in Computer Science, University of Jaffna, May. 2018 – May. 2020.
- Mr. R. Sakuntharaj, “A Hybrid approach for Tamil spelling checker using Tamil grammar.”, MPhil in Computer Science, University of Jaffna, Degree awarded in April 2018.
- Mr. S. Suthakar, “A Model for Semi Automatic Image Segmentation of Brain Tumours.”, MPhil in Computer Science, University of Jaffna, 2012
Institutional Development
- Contributor in introducing new courses to Bachelor of Science in Computer Science Degree Programme, 2015 & 2016.
- Contributor in introducing the Extended Degree Programme, Bachelor of Science Honours in Applied Science in Computing, 2014.
- Developed Curriculum for Bachelor of Science Degree in Computer Science, Eastern University, Sri Lanka, 2016.
- Developed Curriculum for Bachelor of Science Honours in Applied Science in Computing, Academic Year 2014/2015
- Developed Curriculum for Bachelor of Science Degree in Computer Science, Department of Computer Science, University of Jaffna, Academic Year 2014/2015.
- Developed Curriculum for Bachelor of Science Degree Specialisation in Computer Science, Department of Computer Science, University of Jaffna, Academic Year 2014/2015.
Activities
- Visiting Lecturer for the final year general degree students, Department of Computer Science, Trincomalee Campus of the Eastern University, Sri Lanka, 2012.
- Reviewer for Vavuniya Campus Annual Research Session (VCARS) 2011.
- Reviewer for International Conference on Advances in ICT for Emerging Regions (ICTer), 2011.
- Reviewer for the Annual Academic Sessions of the Open University of Sri Lanka, 2011.
- Visiting Lecturer in the Department of Mathematics, Faculty of Science, Eastern University, Sri Lanka for the Special Degree Programme in Computer Science, 2010/2011.
- General Chair, 2010 ICIAfS Post Conference Workshop, University of Jaffna, 21 & 22 December 2010.
Admin Roles
- Advisor: IEEE Computer Society (CS) Student Branch Chapter, University of Jaffna, March 2022 to January 2023
- Academic Counsellor – Faculty of Science, September 2020 to date.
- Member of the Curriculum Development, Review, and Monitoring Committee (CDRMC), Faculty of Science (2019 to date)
- Member of the Alumni Association Committee of the Faculty of Science, 2019
- Head – Computer Science [2000-2008, 1997-1999]
- Head – Computer Unit [2008-2015, 1995-1997].
- Acting Head – Computer Unit [2005 – 2008, 2000-2003, 1997-1999]
- Acting Head – Computer Science [1996-1997]
- University representative for LEARN.
- Administrator – Computer Network and Website.
- Deputy Coordinator for Enhancing ICT Skills – University Development Grant (UDG) under HETC Project.
- Member of the Senate Sub-Committee on IT.
- Member of the Senate Sub-Committee on Web Designing.
- Member of Senate – University.
- Member of the Board – Faculty of Science.
- Member of IEEE
Publications
2023
- Kalpana, C., Mahesan, S. and Bath, P.A. (2023). “Integrated Surveillance Model for Improving Completeness of Notifiable Disease Surveillance in Jaffna, Sri Lanka”, in Book “Current Innovations in Disease and Health Research”, edited by Erich Cosmi, Vol. 5, B.P. International India, United Kingdom. 10.9734/bpi/cidhr/v5/5927B.
- Sarveswaran, K. and Mahesan, S.: Codification of Navalar’s Tamil Grammar. In Proceedings of the first International Conference on Social Sciences and Languages (ICSSL 2023), pp. 291-295, January 2.
2021
- Thavareesan. S., and Mahesan. S.: “Sentiment analysis in Tamil Texts using K-means and k-Nearest neighbour”, In proceedings of the 10th IEEE International Conference on Information and Automation for Sustainability (ICIAfS), Negombo, Sri Lanka, pp. 48-53, August 2021. doi: 10.1109/ICIAfS52090.2021.9605839.
- Sakuntharaj, R. and Mahesan, S.: “Missing Word Detection and Correction Based on Context of Tamil Sentences Using N-Grams”, In proceedings of the 10th IEEE International Conference on Information and Automation for Sustainability (ICIAfS), Negombo, Sri Lanka, pp. 42-47, August 2021. doi: 10.1109/ICIAfS52090.2021.9606025.
2020
- Thavareesan, S. and Mahesan, S.: “Word Embedding-Based Part of Speech Tagging in Tamil Texts.” In IEEE International Conference on Industrial and Information Systems (ICIIS), IIT Ropar, India, 26-28 November 2020. [Accepted]
- Thavareesan S. and Mahesan S.: “Sentiment Lexicon Expansion Using Word2vec and fastText for Sentiment Prediction in Tamil Texts” in IEEE 6th International Multidisciplinary Engineering Research Conference (MERCon), 28-30 July 2020. [Accepted]
- Sakuntharaj R. and Mahesan S.: “Common Technique for Detecting and Correcting both non-word and real-word errors in Tamil Sentences”, Proceedings of the 7th Ruhuna International Science & Technology Conference (RISTCON-2020), University of Ruhuna, Matara, Sri Lanka, 22 January 2020. (ISSN 1391 – 8796), page-47
- Thavareesan S. and Mahesan S.: “An Improved kNN algorithm using K-means and fastText to predict sentiment expressed in Tamil texts”, Proceedings of the 7th Ruhuna International Science & Technology Conference (RISTCON-2020), University of Ruhuna, Matara, Sri Lanka, 22 January 2020. (ISSN 1391 – 8796), page-63
2019
- Thavareesan S. and Mahesan, S.: “Sentiment Analysis in Tamil Texts: A Study on Machine Learning Techniques and Feature Representation”, In IEEE International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka, 18-20 December 2019. [Accepted]
- Thavareesan S. and Mahesan, S.: “A Literature Review on Sentiment Analysis in Tamil Texts”, Proceedings of Jaffna Science Association, Vol.26(01), pp.30-31, August 2019
- Sakuntharaj, R. and Mahesan, S.: “Novel POS Sub-tags for Detection and Correction of Grammatical Mistakes in Tamil Language”, Proceedings of Jaffna Science Association, Vol.26(01), pp.32-33, August 2019
- Thavareesan, S. and Mahesan, S., 2018. Review on sentiment analysis in Tamil texts. Journal of Science, 9(2), pp.1–19.DOI
- Sakthuntharaj R., Mahesan S, Detecting and Correcting grammatical mistakes due to subject-verb inconformity and conflicts in tense aspects in Tamil sentences Proceedings of the 6th Ruhuna International Science and Technology Conference, University of Ruhuna, Matara, ISSN:1391-8796, p.36, 2019
2018
- Sakuntharaj R. , Mahesan S.: Detecting and Correcting real-word errors in Tamil sentences, Ruhuna Journal of Science, Vol.9(2): eISSN 2536-8400, pp.150-159, December 2018. [Available here]
- Sakuntharaj R., S. and Mahsean, S.: “A Refined POS Tag Sequence Finder for Tamil Sentences”, In IEEE International Conference on Information and Automation for Sustainability (ICIAfS), 21-22 December, 2018. [Accepted]
- Sakuntharaj. R. and Mahesan,S., Detecting and Correcting real-word errors in Tamil Sentences, In Proceedings of the 5th Ruhuna International Science and Technology Conference, p. 54, 15 Feb 2018.
2017
- Chandrasekar, K., Mahesan, S. and Bath, P.A.: “Impact of Epidemiological Publications among Health Professionals in Disease Surveillance – Experience from Jaffna, Sri Lanka”, International Journal of Multidisciplinary Studies (IJMS), Vol. 4(2), pp: 23-33, 2017.[Available here].
- Sakuntharaj, R. and Mahesan, S.: “Use of a Novel Hash-Table for Speeding-up Suggestions for Misspelt Tamil Words,” In 12th IEEE International Conference on Industrial and Information Systems (ICIIS), 15-16 December, 2017. [Accepted]
- Sakuntharaj, R. and Mahesan, S.: “Use of N-gram Technique with a Hash Table to Generate Suggestions for Tamil Misspelt Words,” in Jaffna Science Association, vol. 24, no. 01, p.12, Jaffna, Sri Lanka, May 2017.
2016
- Sakuntharaj,R. and Mahesan, S. “A Novel Hybrid Approach to Detect and Correct Spelling in Tamil Text,” in 2016 IEEE International Conference on Information and Automation for Sustainability (ICIAfS), Dec 2016, pp. 1–6.
- Sakuntharaj, R. and Mahesan, S. “A Critical Review of Reported Works on Tamil Spell Checkers,” in Jaffna Science Association, vol. 23, no. 01, Jaffna, Sri Lanka, May 2016, p. 11.
- Kalpana, C. and Mahesan, S. “An assessment of completeness of notifiable disease reporting in Jaffna district: a qualitative study” (Abs.). Proceedings of Jaffna Science Association – 2016 (23rd Annual Sessions), 23(1): 17. Jaffna: JSA, 2016.
2015
- Kalyani, Y. and Mahesan, S. “Expert System for Guiding G.C.E A/L Students in Selecting Suitable University and Course after Completing G.C.E A/L” In Proceedings of the 33rd National Information Technology Conference (NITC), pp. 21-24, Colombo, Sri Lanka, 7-9 September 2015.
- Mahesan S.: “A Context-Free Grammar for IUPAC names of Hydrocarbons for Developing a Syntactic Parser Using Swi-Prolog”, Proceedings of 2nd International Science & Technology Conference, University of Ruhuna, Matara, Sri Lanka, 22-23 January 2015, page 70
2013
- Chandrasekar, K., Mahesan, S. & Bath, Peter A. “Notifiable disease surveillance in Sri Lanka and the United Kingdom: a comparative study. Sri Lanka Journal of Bio-Medical Informatics.” 4(1): 14-22, 2013.[Available here]
- Mayurathan, B., Ramanan, A., Mahesan, S., and Pinidiyaarachchi, U.A.J.: “Speeded-up and Compact Visual Codebook for Object Recognition”, International Journal of Image Processing (IJIP), Volume 7, Issue 1, 2013.
2012
- Mathialakan, T. and Mahesan, S.: “A Novel Approach to Simplifying Boolean Functions of any Number of Variables”, In International Journal of Computational Intelligence and Informatics (IJCII), September 2012 [accepted]
- Suthakar, S., Mahesan, S.: “A New Speed Function for Level set Based Deformable Model for Tumour Segmentation in Medical Images”, International Journal of Computational Intelligence and Informatics (IJCII), Vol. 2, No. 2, 2012.
- Suthakar, S. and Mahesan, S.: “A Level Set Based Deformable Model for Segmenting Tumors in Medical Images”, proceedings of the International Conference on Pattern Recognition, Informatics and Medical Engineering (PRIME-2012), pp. 280-285, 2012
2011
- Ganesharajah, B., Mahesan, S., and Pinidiyaarachchi, U.A.J.: “Robust Invariant Descriptors for Visual Object Recognition”, In Proceedings of the Sixth IEEE International Conference on Industrial and Information Systems (ICIIS’11), pp. 158-163, 16-19 August, 2011.
- Ganesharajah, B., Mahesan, S., and Pinidiyaarachchi, U.A.J.: “Content Based Image Retrieval: An Overview of Structure of the Image and Image Database”, In Proceedings of the Sixth SLIIT Research Symposium, vol. 4, pp. 30-35, January 2011.
2009
- Ramanan, M., Jeyasugiththan, J., Mahesan, S., and Jeyakumaran, N.: “A Software Tool for Improving Co-60 Treatment Delivery in a Regional Cancer Centre”, In Proceedings of the 30th Annual Conference of Association of Medical Physicists of India (AMPICON-2009), pp. 62-63, November 22-25, 2009.
2005
- Mahesan, S.: “Perspective of Campus Area Network”, Proceedings of Jaffna Science Association, Jaffna, Sri Lanka, section. B, Vol.12, No.2, pp.7-33, 2005.
2003
- Sabesan, M. and Mahesan, S.: “Drawing Chemical Structures of Inorganic Compounds From Their Molecular Formulae Using Java”, Proceedings of the 11th Annual Session of the Jaffna Science Association (JSA), Jaffna, Sri Lanka, section. B, pp.28, 2003.
- Sivaluxman, S. and Mahesan, S.: “An Electronic Book for Solid Geometry”, Proceedings of the 11th Annual Session of the Jaffna Science Association (JSA), Jaffna, Sri Lanka, section. B, pp.28, 2003.
- Subashini, S. and Mahesan, S.: “A Prototype System for Grammar Checking of Tamil Sentences”, Proceedings of the 11th Annual Session of the Jaffna Science Association (JSA), Jaffna, Sri Lanka, section. B, pp.29, 2003.
2002
- Dhushyanthi, M., and Mahesan, S.: “Defining Grammar for Names and Drawing Two-dimensional Structures of Alcohols, Aldehydes, Ketones, and Organic Acids”, Proceedings of the 10th Annual Session of the Jaffna Science Association (JSA), Jaffna, Sri Lanka, section. B, pp.4, 2002.
2000
- Sivagnanasundram, J., and Mahesan, S.: “A Visual Geographical Information System for the District of Jaffna”, 9th Annual Session, Jaffna Science Association, Jaffna, 2000.
1999
- Thabotharan, K. and Mahesan, S.: “A Glossary Management System”, 8th Annual Session, Jaffna Science Association, Jaffna, April 1999.
- Mahesan, S.: “Tamil Transliterator – Graphical User Interface to Microsoft Window-based Word Processors to Type in Tamil”, 8th Annual Session, Jaffna Science Association, Jaffna, April 1999.
- Mahesan, S.: “Computer Education”, Article written for ‘Arivu-ootru’, Chavakachcheri Hindu College Science Magazine, 1999.
1997
- Mahesan, S.: “(KaNanihaLin thahaval thodarpaadal)”, Article written Tamil for ‘(Sankaetham)’ – Manipay Ladies’ College Science Magazine, 1997.
1992
- Mahesan, S.: “An Expert System for Nomenclature Generation for Organic Compounds”, PhD thesis, 1992.
- Mahesan, S. and Martin, R. R.: “Using PROLOG to Deduce and Draw Two-Dimensional Chemical Structures from IUPAC Names”, In Proceedings of the 12th National Comp. Conference, Sri Lanka, pp.31-58, 1992.
1988
- Contribution to “Software Project for PC-Prolog 3.10 Advanced User’s Guide” (Chapter 6), Prolog Development Centre, Brondby, Denmark, 1988.
Teaching
Undergraduate Teaching
- CSC102GC2: Object Oriented Programming
- CSC104GC2: Practical Computing – I (shared with Dr. A.R and Mr. K.S.)
- CSC201GC2: Data Structures and Algorithms
- CSC202SC3: Concepts of Programming Languages
- CSC222GE2: Programming in Logic
- CSC302MC3: Artificial Intelligence – I
- CSC323GE2: Bioinformatics Computing
- CSC401MC4: Advance Algorithms
- CSC402MC2: Artificial Intelligence – II