AI Support & Agents

Sentiment Analysis

Definition

Sentiment analysis is the automated classification of the emotional tone of a message — typically positive, negative, or neutral — so teams can gauge how a customer feels and respond appropriately.

Also known as: opinion miningemotion detectiontone analysis

How it works

A model reads the text and assigns it a sentiment label or score. Rule-based systems keyword-match on emotive words; modern approaches use language models that weigh context, so they can tell that "great, another broken order" is sarcastic and negative rather than positive.

In support, sentiment is often computed per ticket or per message and can trigger actions — escalating angry conversations, flagging at-risk accounts, or prioritizing a queue.

Why it matters for support

Sentiment analysis turns tone into something you can route and measure. It helps teams catch frustration early, prioritize the tickets most likely to churn, and track emotional trends across thousands of conversations that no one could read manually.

Auto-escalate or reprioritize negative tickets
Surface at-risk customers for proactive outreach
Feed voice-of-customer and QA reporting

Frequently asked

How accurate is sentiment analysis?

It's improved a lot with language models, but sarcasm, mixed emotions, and domain-specific phrasing still cause errors. Treat it as a helpful signal for routing and reporting rather than an infallible judgment.

What is sentiment analysis used for in support?

Escalating frustrated customers, prioritizing queues, flagging churn risk, and tracking emotional trends in voice-of-customer reporting at a scale humans can't read manually.

Related terms

Text Classification

Text classification is the task of automatically assigning a category or label to a piece of text — such as tagging a support ticket by topic, language, or priority..

Natural Language Processing (NLP)

Natural language processing (NLP) is the field of AI focused on enabling computers to understand, interpret, and generate human language — the foundation for tasks like intent recognition, sentiment analysis, and text classification..

Voice of the Customer (VoC)

Voice of the Customer (VoC) is the practice of systematically capturing and analyzing customer feedback — across surveys, support tickets, reviews, and conversations — to understand what customers need, expect, and experience..

Escalation

Escalation is the process of moving a support ticket to a higher tier, a specialist, or a manager when the current agent can't resolve it or when it risks breaching an SLA..

Customer Churn Rate

Customer churn rate is the percentage of customers who stop doing business with a company over a given period — canceling, not renewing, or lapsing — relative to the total at the start of that period..

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