How does sentiment analysis work?

 To explain sentiment analysis, it’s also helpful to understand how it works. So, sentiment analysis parses a piece of text in search of pre-defined key terms. These are terms that it understands as positive, neutral, or negative.

In other words, sentiment analysis knows that words like ‘great’, ‘happy’, and ‘friendly’ are positive. So, when it finds them, it assigns that text a positive sentiment.

The software also knows that ‘pointless’, ‘awful’, and ‘annoying’ carry a negative connotation. So, these words earn the text a negative sentiment.

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