Named Entity Recognition 25.4
Named Entity Recognition User and Programming Guide

# CaseNormalization

The case conversion to use for all incoming text. To improve performance, use this parameter to convert all text to lowercase or uppercase before attempting to match text.

This parameter takes one of the following values:

- None. No case conversion.
- Lower. All incoming text is converted to lowercase.
- Upper. All incoming text is converted to uppercase.

If your grammar file consists of only lowercase or only uppercase characters but your text is mixed case, you can improve performance by setting `CaseNormalization` to `Lower` or `Upper` respectively. This provides a greater performance improvement than setting MatchCase to `False`.

If you set this parameter to `Lower` or `Upper`, set MatchCase to `True`.

Type: | String
Default: | None
Required: | No
Configuration Section: | Eduction
Example: | `CaseNormalization=lower`
See Also: | CaseNormalizationBehavior CaseSensitiveFieldName MatchCase

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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: CaseNormalization