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# 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`.

Note: When using the Eduction Linguistic Sentiment Analysis grammar, HPE recommends that you set this parameter to `Lower` and the `MatchCase` parameter to `True` to ensure optimal performance.

Note: If you set both the `CaseNormalization` configuration parameter and the `CaseNormalization` action, the action settings take precedence.

Type: | String
Default: | None
Required: | No
Configuration Section: | Any section that you have defined for Eduction settings.
Example: | `CaseNormalization=lower`
See Also: | MatchCase

Related Topics

- CaseNormalization (action parameter)

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