AI Terminology Course
AI Terminology
/
Intermediate

Named Entity Recognition (NER)

Definition

An NLP subtask that seeks to locate and classify named entities mentioned in unstructured text into pre-defined categories such as person names, organizations, locations, and time expressions.

Explain Like I'm New

A digital highlighter. You feed it a news article. It highlights all the People in blue, all the Companies in green, and all the Cities in yellow.

Real World Example

Customer Support routing. An email arrives: 'My iPhone screen broke in New York'. NER detects 'iPhone' (Product) and 'New York' (Location), and automatically routes the email to the Apple Hardware Team in the US East Coast division.

Common Use Cases

  • •Information extraction
  • •Automated customer support
  • •Legal document analysis

Interview Questions

basic

  • What does NER stand for?

intermediate

  • How does NER help in data anonymization (GDPR compliance)?

Flash Cards

Question

What does it stand for?

Click to reveal answer
Answer

Named Entity Recognition.

Question

How does it help anonymization?

Click to reveal answer
Answer

A hospital can run NER on all doctor's notes to detect Names, Phone Numbers, and Addresses. The system then automatically blacks out those specific entities before sharing the data with researchers.