PI: Surangika Ranathunga
The Data Quality Estimation and Improvement project focuses on analysing, measuring, and enhancing the quality of datasets used in natural language processing, particularly for multilingual and low-resource language applications.
PI: Nisansa de Silva
We propose to advance natural language processing for low-resource settings by leveraging data augmentation, transfer learning, and model adaptation techniques to overcome the scarcity of annotated data and linguistic resources.
PI: Nisansa de Silva
This project aims to develop a comprehensive diachronic corpus for the Sinhala language, addressing the scarcity of historical linguistic resources for a language spoken by approximately 16 million people in Sri Lanka.
PI: Nisansa de Silva
We propose to build and analyze Sinhala language resources, datasets, and models to strengthen NLP research for this low-resource language, while connecting it to English and Tamil through bilingual lexicons, embeddings, and cross-lingual methods.
Theses: BSc
Dimuthu Upeksha, Chamila Wijayarathna, Maduranga Siriwardena, and Lahiru Lasandun, "Sinmin - Sinhala Corpus Project", University of Moratuwa, 2015
Journal Papers
Julia Kreutzer, Isaac Caswell, Lisa Wang, Ahsan Wahab, Daan van Esch, Nasanbayar Ulzii-Orshikh, Allahsera Tapo, Nishant Subramani, Artem Sokolov, Claytone Sikasote, and others, "Quality at a Glance: An Audit of Web-Crawled Multilingual Datasets", Transactions of the Association for Computational Linguistics, vol. 10, pp. 50--72, 2022. doi: 10.1162/tacl_a_00447
Conference Papers
Nevidu Jayatilleke, Nisansa de Silva, Uthpala Nimanthi, Gagani Kulathilaka, Azra Safrullah, and Johan Sofalas, "SiDiaC-v. 2.0: Sinhala Diachronic Corpus Version 2.0", in Proceedings of the Fifteenth Language Resources and Evaluation Conference (LREC 2026), Palma, Mallorca, Spain: European Language Resources Association (ELRA), May. 2026, pp. 6740--6763. doi: 10.63317/2ybff4o55vrq
Nevidu Jayatilleke and Nisansa de Silva, "SiDiaC: Sinhala Diachronic Corpus", in Proceedings of the 39th Pacific Asia Conference on Language, Information and Computation, 2025, pp. 511--527.
Dimuthu Upeksha, Chamila Wijayarathna, Maduranga Siriwardena, Lahiru Lasandun, Chinthana Wimalasuriya, N. H. N. D. de Silva, and Gihan Dias, "Comparison Between Performance of Various Database Systems for Implementing a Language Corpus", in International Conference: Beyond Databases, Architectures and Structures, May. 2015, pp. 82--91. doi: 10.1007/978-3-319-18422-7_7
Dimuthu Upeksha, Chamila Wijayarathna, Maduranga Siriwardena, Lahiru Lasandun, Chinthana Wimalasuriya, N. H. N. D. De Silva, and Gihan Dias, "Implementing a Corpus for Sinhala Language", in Symposium on Language Technology for South Asia 2015, 2015. doi: 10.13140/RG.2.2.23035.11047
Workshop Papers
Nisansa de Silva, "Sinhala Diachronic Corpus", in NeurIPS 2025 AI for Science Workshop, 2025.
