Named Entity Recognition 25.4
Named Entity Recognition User and Programming Guide

# Create and Modify Named Entity Recognition Grammars

Named Entity Recognition uses grammar files to identify and tag entities in documents. They are written in XML in a format specific to Named Entity Recognition. They are then compiled, using the Named Entity Recognition command-line tool, into ECR files that Named Entity Recognition can easily read at runtime.

Named Entity Recognition includes a collection of standard grammar files that make it easy to identify common entities such as names and phone numbers. These are described in Standard Grammars.

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Version 25.4 | Last updated October 2025

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Product: Knowledge Discovery Named Entity Recognition 25.4

Topic Title: Create and Modify Named Entity Recognition Grammars