Bridging Linguistic Complexity: Sentiment Analysis of Tamil Code-Mixed Text Using Meta-Model

Anusha M D Gowda, Deepthi Vikram, Parameshwar R Hegde


Abstract
Sentiment analysis in code-mixed languages poses significant challenges due to the complex nature of mixed-language text. This study explores sentiment analysis on Tamil code-mixed text using deep learning models such as Long Short-Term Memory (LSTM), hybrid models like Convolutional Neural Network (CNN) + Gated Recurrent Unit (GRU) and LSTM + GRU, along with meta-models including Logistic Regression, Random Forest, and Decision Tree. The LSTM+GRU hybrid model achieved an accuracy of 0.31, while the CNN+GRU hybrid model reached 0.28. The Random Forest meta-model demonstrated exceptional performance on the development set with an accuracy of 0.99. However, its performance dropped significantly on the test set, achieving an accuracy of 0.1333. The study results emphasize the potential of meta-model-based classification for improving performance in NLP tasks.
Anthology ID:
2025.dravidianlangtech-1.18
Volume:
Proceedings of the Fifth Workshop on Speech, Vision, and Language Technologies for Dravidian Languages
Month:
May
Year:
2025
Address:
Acoma, The Albuquerque Convention Center, Albuquerque, New Mexico
Editors:
Bharathi Raja Chakravarthi, Ruba Priyadharshini, Anand Kumar Madasamy, Sajeetha Thavareesan, Elizabeth Sherly, Saranya Rajiakodi, Balasubramanian Palani, Malliga Subramanian, Subalalitha Cn, Dhivya Chinnappa
Venues:
DravidianLangTech | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
103–108
Language:
URL:
https://preview.aclanthology.org/fix-sig-urls/2025.dravidianlangtech-1.18/
DOI:
Bibkey:
Cite (ACL):
Anusha M D Gowda, Deepthi Vikram, and Parameshwar R Hegde. 2025. Bridging Linguistic Complexity: Sentiment Analysis of Tamil Code-Mixed Text Using Meta-Model. In Proceedings of the Fifth Workshop on Speech, Vision, and Language Technologies for Dravidian Languages, pages 103–108, Acoma, The Albuquerque Convention Center, Albuquerque, New Mexico. Association for Computational Linguistics.
Cite (Informal):
Bridging Linguistic Complexity: Sentiment Analysis of Tamil Code-Mixed Text Using Meta-Model (Gowda et al., DravidianLangTech 2025)
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PDF:
https://preview.aclanthology.org/fix-sig-urls/2025.dravidianlangtech-1.18.pdf