JCT at SemEval-2023 Tasks 12 A and 12B: Sentiment Analysis for Tweets Written in Low-resource African Languages using Various Machine Learning and Deep Learning Methods, Resampling, and HyperParameter Tuning

Ron Keinan, Yaakov Hacohen-Kerner


Abstract
In this paper, we describe our submissions to the SemEval-2023 contest. We tackled subtask 12 - “AfriSenti-SemEval: Sentiment Analysis for Low-resource African Languages using Twitter Dataset”. We developed different models for 12 African languages and a 13th model for a multilingual dataset built from these 12 languages. We applied a wide variety of word and char n-grams based on their tf-idf values, 4 classical machine learning methods, 2 deep learning methods, and 3 oversampling methods. We used 12 sentiment lexicons and applied extensive hyperparameter tuning.
Anthology ID:
2023.semeval-1.49
Volume:
Proceedings of the 17th International Workshop on Semantic Evaluation (SemEval-2023)
Month:
July
Year:
2023
Address:
Toronto, Canada
Editors:
Atul Kr. Ojha, A. Seza Doğruöz, Giovanni Da San Martino, Harish Tayyar Madabushi, Ritesh Kumar, Elisa Sartori
Venue:
SemEval
SIG:
SIGLEX
Publisher:
Association for Computational Linguistics
Note:
Pages:
365–378
Language:
URL:
https://aclanthology.org/2023.semeval-1.49
DOI:
10.18653/v1/2023.semeval-1.49
Bibkey:
Cite (ACL):
Ron Keinan and Yaakov Hacohen-Kerner. 2023. JCT at SemEval-2023 Tasks 12 A and 12B: Sentiment Analysis for Tweets Written in Low-resource African Languages using Various Machine Learning and Deep Learning Methods, Resampling, and HyperParameter Tuning. In Proceedings of the 17th International Workshop on Semantic Evaluation (SemEval-2023), pages 365–378, Toronto, Canada. Association for Computational Linguistics.
Cite (Informal):
JCT at SemEval-2023 Tasks 12 A and 12B: Sentiment Analysis for Tweets Written in Low-resource African Languages using Various Machine Learning and Deep Learning Methods, Resampling, and HyperParameter Tuning (Keinan & Hacohen-Kerner, SemEval 2023)
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PDF:
https://aclanthology.org/2023.semeval-1.49.pdf