VADER, which stands for Valence Aware Dictionary and sEntiment Reasoner, is a lexicon and rule-based sentiment analysis tool designed to determine the sentiment polarity of text. It is particularly effective for analyzing social media texts and short sentences, providing a score that indicates whether the sentiment is positive, negative, or neutral. Its design is tailored for ease of use and efficiency in processing large volumes of text data, making it a popular choice in text and web mining applications.
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