Title
Evaluating The Effectiveness Of Hashtags As Predictors Of The Sentiment Of Tweets
Abstract
Recently, there has been growing research interest in the sentiment analysis of tweets. However, there is still a need to examine the contribution of Twitter-specific features to this task. One such feature is hashtags, which are user-defined topics. In our study, we compare the performance of sentiment and non-sentiment hashtags in classifying tweets as positive or negative. By combining subjective words from different lexical resources, we achieve accuracy scores of 83.58% and 83.83% in identifying sentiment hashtags and non-sentiment hashtags, respectively. Furthermore, our accuracy scores surpass those scores obtained using models that apply a single lexical resource. We apply derived properties of sentiment and non-sentiment hashtags, including their sentiment polarity to classify tweets. Our best classification models achieve accuracy scores of 81.14% and 86.07% using sentiment hashtags and non-sentiment hashtags, respectively. Additionally, our models perform comparably to supervised machine learning algorithms, and outperform a scoring algorithm developed in a previous study.
Year
DOI
Venue
2015
10.1007/978-3-319-24282-8_21
DISCOVERY SCIENCE, DS 2015
Field
DocType
Volume
Sentiment analysis,Scoring algorithm,Computer science,Artificial intelligence,Machine learning
Conference
9356
ISSN
Citations 
PageRank 
0302-9743
2
0.38
References 
Authors
9
2
Name
Order
Citations
PageRank
Credell Simeon130.73
Robert J. Hilderman227029.86