Lexicon-based Approaches

Lexicon-based approaches are methods used in sentiment analysis that rely on a predefined list of words, called a lexicon, each associated with a sentiment score indicating positive, negative, or neutral feelings. When analyzing a piece of text, these methods identify words from the lexicon within the text and aggregate their scores to determine the overall sentiment. This approach is straightforward and interpretable, making it useful for tasks like understanding public opinion or customer feedback without needing complex machine learning models. However, its accuracy depends on the quality and coverage of the lexicon used.