Abirami Murugappan


2024

pdf
Findings of the Shared Task on Multimodal Social Media Data Analysis in Dravidian Languages (MSMDA-DL)@DravidianLangTech 2024
Premjith B | Jyothish G | Sowmya V | Bharathi Raja Chakravarthi | K Nandhini | Rajeswari Natarajan | Abirami Murugappan | Bharathi B | Saranya Rajiakodi | Rahul Ponnusamy | Jayanth Mohan | Mekapati Reddy
Proceedings of the Fourth Workshop on Speech, Vision, and Language Technologies for Dravidian Languages

This paper presents the findings of the shared task on multimodal sentiment analysis, abusive language detection and hate speech detection in Dravidian languages. Through this shared task, researchers worldwide can submit models for three crucial social media data analysis challenges in Dravidian languages: sentiment analysis, abusive language detection, and hate speech detection. The aim is to build models for deriving fine-grained sentiment analysis from multimodal data in Tamil and Malayalam, identifying abusive and hate content from multimodal data in Tamil. Three modalities make up the multimodal data: text, audio, and video. YouTube videos were gathered to create the datasets for the tasks. Thirty-nine teams took part in the competition. However, only two teams, though, turned in their findings. The macro F1-score was used to assess the submissions

2023

pdf
Findings of the Shared Task on Multimodal Abusive Language Detection and Sentiment Analysis in Tamil and Malayalam
Premjith B | Jyothish Lal G | Sowmya V | Bharathi Raja Chakravarthi | Rajeswari Natarajan | Nandhini K | Abirami Murugappan | Bharathi B | Kaushik M | Prasanth Sn | Aswin Raj R | Vijai Simmon S
Proceedings of the Third Workshop on Speech and Language Technologies for Dravidian Languages

This paper summarizes the shared task on multimodal abusive language detection and sentiment analysis in Dravidian languages as part of the third Workshop on Speech and Language Technologies for Dravidian Languages at RANLP 2023. This shared task provides a platform for researchers worldwide to submit their models on two crucial social media data analysis problems in Dravidian languages - abusive language detection and sentiment analysis. Abusive language detection identifies social media content with abusive information, whereas sentiment analysis refers to the problem of determining the sentiments expressed in a text. This task aims to build models for detecting abusive content and analyzing fine-grained sentiment from multimodal data in Tamil and Malayalam. The multimodal data consists of three modalities - video, audio and text. The datasets for both tasks were prepared by collecting videos from YouTube. Sixty teams participated in both tasks. However, only two teams submitted their results. The submissions were evaluated using macro F1-score.

pdf
Overview of Shared-task on Abusive Comment Detection in Tamil and Telugu
Ruba Priyadharshini | Bharathi Raja Chakravarthi | Malliga S | Subalalitha Cn | Kogilavani S V | Premjith B | Abirami Murugappan | Prasanna Kumar Kumaresan
Proceedings of the Third Workshop on Speech and Language Technologies for Dravidian Languages

This paper discusses the submissions to the shared task on abusive comment detection in Tamil and Telugu codemixed social media text conducted as part of the third Workshop on Speech and Language Technologies for Dravidian Languages at RANLP 20239. The task encourages researchers to develop models to detect the contents containing abusive information in Tamil and Telugu codemixed social media text. The task has three subtasks - abusive comment detection in Tamil, Tamil-English and Telugu-English. The dataset for all the tasks was developed by collecting comments from YouTube. The submitted models were evaluated using macro F1-score, and prepared the rank list accordingly.

pdf
HARMONY@DravidianLangTech: Transformer-based Ensemble Learning for Abusive Comment Detection
Amrish Raaj P | Abirami Murugappan | Lysa Packiam R S | Deivamani M
Proceedings of the Third Workshop on Speech and Language Technologies for Dravidian Languages

Millions of posts and comments are created every minute as a result of the widespread use of social media and easy access to the internet.It is essential to create an inclusive environment and forbid the use of abusive language against any individual or group of individuals.This paper describes the approach of team HARMONY for the “Abusive Comment Detection” shared task at the Third Workshop on Speech and Language Technologies for Dravidian Languages.A Transformer-based ensemble learning approach is proposed for detecting abusive comments in code-mixed (Tamil-English) language and Tamil language. The proposed architecture achieved rank 2 in Tamil text classification sub task and rank 3 in code mixed text classification sub task with macro-F1 score of 0.41 for Tamil and 0.50 for code-mixed data.

pdf
RANGANAYAKI@LT-EDI: Hope Speech Detection using Capsule Networks
Ranganayaki Em | Abirami Murugappan | Lysa Packiam R S | Deivamani M
Proceedings of the Third Workshop on Language Technology for Equality, Diversity and Inclusion

HOPE speeches convey uplifting and motivating messages that help enhance mental health and general well-being. Hope speech detection has gained popularity in the field of natural language processing as it gives people the motivation they need to face challenges in life. The momentum behind this technology has been fueled by the demand for encouraging reinforcement online. In this paper, a deep learning approach is proposed in which four different word embedding techniques are used in combination with capsule networks, and a comparative analysis is performed to obtain results. Oversampling is used to address class imbalance problem. The dataset used in this paper is a part of the LT-EDI RANLP 2023 Hope Speech Detection shared task. The approach proposed in this paper achieved a Macro Average F1 score of 0.49 and 0.62 in English and Hindi-English code mix test data, which secured 2nd and 3rd rank respectively in the above mentioned share task.

2022

pdf bib
Proceedings of the First Workshop on Multimodal Machine Learning in Low-resource Languages
Bharathi Raja Chakravarthi | Abirami Murugappan | Dhivya Chinnappa | Adeep Hane | Prasanna Kumar Kumeresan | Rahul Ponnusamy
Proceedings of the First Workshop on Multimodal Machine Learning in Low-resource Languages

pdf bib
Proceedings of the 19th International Conference on Natural Language Processing (ICON): Shared Task on Word Level Language Identification in Code-mixed Kannada-English Texts
Bharathi Raja Chakravarthi | Abirami Murugappan | Dhivya Chinnappa | Adeep Hane | Prasanna Kumar Kumeresan | Rahul Ponnusamy
Proceedings of the 19th International Conference on Natural Language Processing (ICON): Shared Task on Word Level Language Identification in Code-mixed Kannada-English Texts