AI Glossary Term

What does “Sentiment Analysis” mean?

Definition

An NLP task that classifies emotional tone or opinion in text.

How Sentiment Analysis works

Diagram for Sentiment Analysis, a branching tree starting from "Review text": Love it, works great: Positive; Broke after two days: Negative.Love it, works greatPositiveBroke after two daysNegativeReview text

Example

A company classifies thousands of product reviews as positive, negative, or neutral to see which features customers like. A few reviews that use sarcasm are misread, so results are treated as a general trend.

Why it matters

It turns large volumes of opinion text into summaries. Sarcasm, mixed feelings, and cultural differences make it imperfect.

Common questions

What does it output?

Usually a label such as positive, negative, or neutral, sometimes with a score or finer emotions.

Where does it fail?

Sarcasm, slang, negation, and mixed opinions can fool it.

Is it the same as intent detection?

No. Sentiment is about feeling; intent is about what the person wants to do.

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See also