Comparison of Data Models For Unsupervised Twitter Sentiment Analysis

  • S. Limboi Department of Computer Science, Babes-Bolyai University, 1, M. Kogalniceanu Street, 400084, Cluj-Napoca, Romania

Abstract

Identifying the sentiment of collected tweets has become a challenging and interesting task. In addition, mining and defining relevant features that can improve the quality of a classification system is crucial. The data modeling phase is fundamental for the whole process since it can reveal hidden information from the textual inputs. Two models are defined in the presented paper, considering Twitter-specific concepts: a hashtag-based representation and a text-based one. These models will be compared and integrated into an unsupervised system that determines groups of tweets based on sentiment labels (positive and negative). Moreover, word-embedding techniques (TF-IDF and frequency vectors) are used to convert the representations into a numeric input needed for the clustering methods. 


The experimental results show good values for Silhouette and Davies-Bouldin measures in the unsupervised environment. A detailed investigation is presented considering several items (dataset, clustering method, data representation, or word embeddings) for checking the best setup for increasing the quality of detecting the sentiment from Twitter’s messages. The analysis and conclusions show that the first results can be considered for more complex experiments

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Published
2023-05-16
How to Cite
LIMBOI, S.. Comparison of Data Models For Unsupervised Twitter Sentiment Analysis. Studia Universitatis Babeș-Bolyai Informatica, [S.l.], v. 67, n. 2, p. 65-80, may 2023. ISSN 2065-9601. Available at: <https://www.cs.ubbcluj.ro/~studia-i/journal/journal/article/view/84>. Date accessed: 14 dec. 2024. doi: https://doi.org/10.24193/subbi.2022.2.05.
Section
Articles