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Mrs. Sajeetha Thavareesan

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Mrs. Sajeetha Thavareesan
B.Sc (Hons) (EUSL)
Senior Lecturer (Gr. II) in Computer Science
Department of Mathematics
Faculty of Science

Telephone: +94 652240753
Email: sajeethas@esn.ac.lk

Biography

I, Sajeetha Thavareesan, am working as a Lecturer at the Department of Mathematics, Faculty of Science, Eastern University, Sri Lanka since March 2014. I completed my honors degree at Eastern University, Sri Lanka. I developed an Android based Patient’s Health care Management System as my final year research project and obtained an award for this research: "Kanapathipillai Karunairajah memorial award for the Best Research conducted by the Final Year students of 2006/ 2007."

I obtained M.Phil in Computer Science at the University of Jaffna. My M.Phil thesis is titled "Sentiment Analysis on Tamil Articles using Machine Learning Approaches". In this research, my aim was to propose a model to perform sentiment analysis on Tamil Articles and create corpora for Tamil.

I believe that my knowledge, skills, and experience mean that I am well-positioned to meet the current challenges of learning, teaching, assessment, and research in the current higher education landscape. I have the expertise to teach a broad range of undergraduate modules in Computing. I have created lab material and learning resources for undergraduate courses for more than 9 years. I have participated in programme review and curriculum development activities during my time at Eastern University, Sri Lanka.

I have published multiple International conference papers and journals. I have an h-index of 13 and citations of 636 from Google Scholar. I have more than 5 years of experience in working with Artificial Intelligence and Natural Language Processing(NLP). I am a reviewer and programme committee member for multiple international workshops and CodaLab competitions. I am a guest editor of "Speech and Language Technologies for Dravidian Languages" published by ELSEVIER Ltd. I am planning to continue my research in Natural Language Processing which I gained expertise in during my time at the University of Jaffna, Sri Lanka. My work will extend to offensive language detection and sentiment analysis.

Links to Publications

Publications

2022

  • Sampath, Anbukkarasi, Thenmozhi Durairaj, Bharathi Raja Chakravarthi, Ruba Priyadharshini, Subalalitha Cn, Kogilavani Shanmugavadivel, Sajeetha Thavareesan et al. "Findings of the shared task on Emotion Analysis in Tamil." In Proceedings of the Second Workshop on Speech and Language Technologies for Dravidian Languages, pp. 279-285. 2022.
  • Ravikiran, Manikandan, Bharathi Raja Chakravarthi, Anand Kumar Madasamy, Sangeetha Sivanesan, Ratnavel Rajalakshmi, Sajeetha Thavareesan, Rahul Ponnusamy, and Shankar Mahadevan. "Findings of the Shared Task on Offensive Span Identification from Code-Mixed Tamil-English Comments." arXiv preprint arXiv:2205.06118 (2022).

2021

  • Hande, Adeep, Karthik Puranik, Konthala Yasaswini, Ruba Priyadharshini, Sajeetha Thavareesan, Anbukkarasi Sampath, Kogilavani Shanmugavadivel, Durairaj Thenmozhi, and Bharathi Raja Chakravarthi. "Offensive Language Identification in Low-resourced Code-mixed Dravidian languages using Pseudo-labeling." arXiv preprint arXiv:2108.12177 (2021).
  • Thavareesan, Sajeetha, and Sinnathamby Mahesan. "Sentiment Analysis in Tamil Texts using k-means and k-nearest neighbour." In 2021 10th International Conference on Information and Automation for Sustainability (ICIAfS), pp. 48-53. IEEE, 2021.
  • Hande, Adeep, Siddhanth U. Hegde, Ruba Priyadharshini, Rahul Ponnusamy, Prasanna Kumar Kumaresan, Sajeetha Thavareesan, and Bharathi Raja Chakravarthi. "Benchmarking multi-task learning for sentiment analysis and offensive language identification in under-resourced dravidian languages." arXiv preprint arXiv:2108.03867 (2021).
  • Hegde, Siddhanth U., Adeep Hande, Ruba Priyadharshini, Sajeetha Thavareesan, Ratnasingam Sakuntharaj, Sathiyaraj Thangasamy, B. Bharathi, and Bharathi Raja Chakravarthi. "Do Images really do the Talking? Analysing the significance of Images in Tamil Troll meme classification." arXiv preprint arXiv:2108.03886 (2021).
  • Kumaresan, Prasanna Kumar, Ratnasingam Sakuntharaj, Sajeetha Thavareesan, Subalalitha Navaneethakrishnan, Anand Kumar Madasamy, Bharathi Raja Chakravarthi, and John P. McCrae. "Findings of Shared Task on Offensive Language Identification in Tamil and Malayalam." In Forum for Information Retrieval Evaluation, pp. 16-18. 2021.
  • Chakravarthi, Bharathi Raja, Ruba Priyadharshini, Sajeetha Thavareesan, Dhivya Chinnappa, Durairaj Thenmozhi, Elizabeth Sherly, John P. McCrae et al. "Findings of the Sentiment Analysis of Dravidian Languages in Code-Mixed Text." arXiv preprint arXiv:2111.09811 (2021).
  • Chakravarthi, Bharathi Raja, Dhivya Chinnappa, Ruba Priyadharshini, Anand Kumar Madasamy, Sangeetha Sivanesan, Subalalitha Chinnaudayar Navaneethakrishnan, Sajeetha Thavareesan, Dhanalakshmi Vadivel, Rahul Ponnusamy, and Prasanna Kumar Kumaresan. "Developing Successful Shared Tasks on Offensive Language Identification for Dravidian Languages." arXiv preprint arXiv:2111.03375 (2021).
  • Chakravarthi, Bharathi Raja, Ruba Priyadharshini, Sajeetha Thavareesan, Dhivya Chinnappa, Durairaj Thenmozhi, Elizabeth Sherly, John P. McCrae et al. "Findings of the Sentiment Analysis of Dravidian Languages in Code-Mixed Text." arXiv preprint arXiv:2111.09811 (2021).
  • Priyadharshini, Ruba, Bharathi Raja Chakravarthi, Sajeetha Thavareesan, Dhivya Chinnappa, Durairaj Thenmozhi, and Rahul Ponnusamy. "Overview of the DravidianCodeMix 2021 Shared Task on Sentiment Detection in Tamil, Malayalam, and Kannada." In Forum for Information Retrieval Evaluation, pp. 4-6. 2021.
  • Ghanghor, Nikhil, Rahul Ponnusamy, Prasanna Kumar Kumaresan, Ruba Priyadharshini, Sajeetha Thavareesan, and Bharathi Raja Chakravarthi. “IIITK@ LT-EDI-EACL2021: Hope Speech Detection for Equality, Diversity, and Inclusion in Tamil, Malayalam and English.” In Proceedings of the First Workshop on Language Technology for Equality, Diversity and Inclusion, pp. 197-203. 2021.
  • Karthik Puranik, Adeep Hande,Ruba Priyadharshini, Sajeetha Thavareesan, and Bharathi RajaChakravarthi. “IIITT@LT-EDI-EACL2021-Hope Speech Detection: There is always hope inTransformers.” In Proceedings of the First Workshop on Language Technology for Equality, Diversity and Inclusion, Online. Association for Computational Linguistics. 2021.
  • Ghanghor, Nikhil, Parameswari Krishnamurthy, Sajeetha Thavareesan, Ruba Priyadharshini, and Bharathi Raja Chakravarthi. “IIITK@ DravidianLangTech-EACL2021: Offensive Language Identification and Meme Classification in Tamil, Malayalam and Kannada.” In Proceedings of the First Workshop on Speech and Language Technologies for Dravidian Languages, pp. 222-229. 2021.
  • Hegde, Siddhanth U., Adeep Hande, Ruba Priyadharshini, Sajeetha Thavareesan, and Bharathi Raja Chakravarthi. “UVCE-IIITT@ DravidianLangTech-EACL2021: Tamil Troll Meme Classification: You need to Pay more Attention.” arXiv preprint arXiv:2104.09081 (2021).
  • Yasaswini, Konthala, Karthik Puranik, Adeep Hande, Ruba Priyadharshini, Sajeetha Thavareesan, and Bharathi Raja Chakravarthi. “IIITT@ DravidianLangTech-EACL2021: Transfer Learning for Offensive Language Detection in Dravidian Languages.” In Proceedings of the First Workshop on Speech and Language Technologies for Dravidian Languages, pp. 187-194. 2021.
  • Sivalingam, Disne, and Sajeetha Thavareesan. “OffTamil@ DravideanLangTech-EASL2021: Offensive Language Identification in Tamil Text.” In Proceedings of the First Workshop on Speech and Language Technologies for Dravidian Languages, pp. 346-351. 2021.
  • Adeep Hande, Karthik Puranik, Ruba Priyadharshini, Sajeetha Thavareesan, Bharathi Raja Chakravarthi: “Evaluating Pretrained Transformer-based Models for COVID-19 Fake News Detection”. In Proceedings of 5th International Conference on Computing Methodologies and Communication Computing Methodologies 2021 (ICCMC 2021).

2020

  • Shubhanker Banerjee, Arun Jaypal, and Sajeetha Thavareesan: “NUIG-Shubhanker@Dravidian-CodeMix- FIRE2020:Sentiment Analysis of Code-Mixed Dravidian text using XLNet.” In FIRE (Working Notes). CEUR, Hyderabad, India, 2020.
  • Thavareesan Sajeetha, and Sinnathamby Mahesan.: “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.
  • Thavareesan Sajeetha, and Sinnathamby Mahesan.: “Sentiment Lexicon Expansion using Word2vec and fastText for Sentiment Prediction in Tamil texts.” in 2020 Moratuwa Engineering Research Conference (MERCon), Sri Lanka, pp.272-276, IEEE,2020.
  • Thavareesan Sajeetha, and Sinnathamby Mahesan.: An improved kNN algorithm using K-means and fastText to predict sentiments expressed in Tamil texts at RISTCON 2020, University of Ruhuna, p. 63, 22 January 2020.

2019

  • Thavareesan Sajeetha, and Sinnathamby Mahesan.: "Sentiment Analysis in Tamil Texts: A Study on Machine Learning Techniques and Feature Representation." In 2019 14th Conference on Industrial and Information Systems (ICIIS), pp. 320-325. IEEE, 18-20 December 2019.
  • Thavareesan Sajeetha, and Sinnathamby Mahesan.: Unsupervised Sentiment Analysis on Tamil texts, In SL-SWCS’19, University of Jaffna, Sri Lanka, December 2019.
  • Thavareesan Sajeetha, and Sinnathamby Mahesan.: Sentiment Analysis on Tamil texts using K-means and K-Nearest Neighbor, In SL-SWCS’19, University of Jaffna, Sri Lanka, December 2019.
  • Thavareesan Sajeetha, and Sinnathamby Mahesan.: “A Literature Review on Sentiment Analysis in Tamil Texts”, In Proceeding of 26th Annual Sessions of Jaffna Science Association (JSA), Jaffna, Sri Lanka, pp. 30–31, 2019.

2018

  • Thavareesan Sajeetha, and Sinnathamby Mahesan.: “Review on sentiment analysis in Tamil texts”, In Proceeding of Journal of Science (JSc), Eastern University of Sri Lanka (EUSL), Sri Lanka, vol. 9 No. 2, pp. 1–19, 2018.
  • Thavareesan Sajeetha.: “Review on Sentiment Lexicons of Indian Languages”, In Journal of Progress in Non-linear Dynamics and Chaos (PINDAC), vol. 6, no. 6, pp. 65–69, 2018.
  • K. A. N. K. Karunarathna and Sajeetha Thavareesan.: “Readiness for Learning with Mobile Phones: A Case Study”, In Asian Journal of Education and Social Studies, vol. 2, no. 3, pp. 1–11, 2018.

2016

  • Thavareesan Sajeetha.: “Android Based Patients Healthcare Management System”, In Journal of Information Systems & Information Technology (JISIT), vol. 1 no. 1, pp. 1–9, 2016.
  • Thavareesan Sajeetha.: “Smartphone-Based Patient Health Care Management System”, In Diabetes Technology Meeting Abstracts, Journal of Diabetes Science and Technology, vol. 10, no. 2, pp. S102, March 2016.

Presentations

  1. Presented a paper titled Sentiment Analysis in Tamil Texts using k-means and k-nearest neighbour in 2021 10th International Conference on Information and Automation for Sustainability (ICIAfS), 10-11 August 2021.
  2. Presented a paper titled 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.
  3. Presented a paper titled Sentiment Lexicon Expansion using Word2vec and fastText for Sentiment Prediction in Tamil texts at MerCon 2020, 28-29 July 2020. (Oral)
  4. Presented an abstract titled An improved kNN algorithm using K-means and fastText to predict sentiments expressed in Tamil texts at RISTCON 2020, University of Ruhuna, 22 January 2020. (Oral)
  5. Presented a paper titled 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. (Oral)
  6. Presented a poster titled Unsupervised Sentiment Analysis on Tamil texts, In SLSWCS’19, University of Jaffna, Sri Lanka, December 2019. (Poster)
  7. Presented a poster titled Sentiment Analysis on Tamil texts using K-means and K-Nearest Neighbor, In SLSWCS’19, University of Jaffna, Sri Lanka, December 2019. (Poster)
  8. Presented an abstract titled A Literature Review on Sentiment Analysis in Tamil Texts in Jaffna Science Association, Jaffna, Sri Lanka, August 2019. (Oral)
  9. Presented the ongoing work at the Symposium on Symposium on National Languages Processing (SNLP) held on 22nd & 23rd March 2019 at the University of Moratuwa. (Oral)

Research Interest

  • Sentiment Analysis
  • Natural Language Processing 
  • Machine Learning
  • Android Software Development

Teaching

  • Computing Mathematics
  • Rapid Application Development
  • Introduction to Computer Graphics
  • Theory of Computation

Awards

  • "Kanapathipillai Karunairajah" memorial award for the Best Research conducted by the Final Year students of 2006/ 2007

Positions Held

  • Faculty Board Member (From June 2016 to May 2018), (March 2022 to present).

  • 2020 – present Senior Lecturer (Gr.II) in Computer Science
  • Department of Mathematics, Faculty of Science, Eastern University. Sri Lanka.
  • Guest Editor of Special Issue on Speech and Language Technologies for Dravidian Languages, ELSEVIER.

  • Organizing committee member of DravidianCodeMix FIRE 2021 competition.
  • ( https://competitions.codalab.org/competitions/30642 )
  • Organizing committee member of Dravidian-CodeMix - HASOC 2021: Offensive Language Identification for Dravidian Languages in Code-Mixed Text. ( https://dravidian-codemix.github.io/hasoc2021/index.html )
  • Technical program committee member, reviewer, and handling workshops' publicity across social media platforms of First Workshop on Language Technology for Equality, Diversity, Inclusion - EACL 2021 and First Workshop on Speech and Language Technologies for Dravidian Languages EACL-2021.( https://dravidianlangtech.github.io/2021/index.html )
  • 2014 – 2020 Lecturer (Prob.) in Computer Science Department of Mathematics, Faculty of Science, Eastern University. Sri Lanka.
  • 2013 – 2014 Visiting Lecturer in Computer Science Faculty of Sciences, Eastern University, Sri Lanka
  • 2013 – 2014 Assistant Librarian Faculty of Health Care Sciences, Eastern University, Sri Lanka
  • 2013 – 2013 Assistant Lecturer (On Contract) Department of Mathematics, Faculty of Science, Eastern University, Sri Lanka
  • 2012 – 2013 Demonstrator (On Contract) Department of Mathematics, Faculty of Science, Eastern University, Sri Lanka
Last Updated
23-May-2022