In this paper, we describe our system submitted for SemEval 2020 Task 9, Sentiment Analysis for Code-Mixed Social Media Text alongside other experiments. Our best performing system is a Transfer Learning-based model that fine-tunes "XLM-RoBERTa", a transformer-based multilingual masked language model, on monolingual English and Spanish data and Spanish-English code-mixed data. Our system outperforms the official task baseline by achieving a 70.1% average F1-Score on the official leaderboard using the test set. For later submissions, our system manages to achieve a 75.9% average F1-Score on the test set using CodaLab username "ahmed0sultan".
@article{arxiv.2009.09879,
title = {WESSA at SemEval-2020 Task 9: Code-Mixed Sentiment Analysis using Transformers},
author = {Ahmed Sultan and Mahmoud Salim and Amina Gaber and Islam El Hosary},
journal= {arXiv preprint arXiv:2009.09879},
year = {2020}
}