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With the possibility of identifying emotions in text, the content has been computationally analyzed using a keyword or corpus-based approach and a learning-based approach [23,24].
The learning-based approach uses a predictive model to determine the relationship between an input and output word. Word embedding is a common learning-based technique that transforms the words of a document into dimensional vectors for word representation and determines word similarity.
JMIR Ment Health 2021;8(8):e19824
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Researching Mental Health Disorders in the Era of Social Media: Systematic Review
In text mining, sentiment analysis is a popular tool for understanding emotion expression. It is employed to classify the polarity of a given text into categories such as positive, negative, and neutral [77].
J Med Internet Res 2017;19(6):e228
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