Scaling-up the Resources for a Freely Available Swedish VADER (svVADER)

Dimitrios Kokkinakis, Ricardo Muñoz Sánchez, Mia-Marie Hammarlin

Keywords: sentiment analysis, VADER, sentiment analysis resources, lexicon-based sentiment analysis

TL;DR: The paper describes, scales-up and evaluates a lexicon-based approach to Swedish sentiment analysis.

Abstract: With widespread commercial applications in various domains, sentiment analysis has become a success story for Natural Language Processing (NLP). Still, although sentiment analysis has rapidly progressed during the last years, mainly due to the application of modern AI technologies, many approaches apply knowledge-based strategies, such as lexicon-based, to the task. This is particularly true for analyzing short social media content, e.g., tweets. Moreover, lexicon-based sentiment analysis approaches are usually preferred over learning-based methods when training data is unavailable or insufficient. Therefore, our main goal is to scale-up and apply a lexicon-based approach which can be used as a baseline to Swedish sentiment analysis. All scaled-up resources are made available, while the performance of this enhanced tool is evaluated on two short datasets, achieving adequate results.