Redacting portions of text transcriptions generated from inverse text normalization

A method, comprising:

• obtaining, by a machine transcription system, text data for redaction;
• applying, by the machine transcription system, a number of inverse text normalization models to the text data to generate normalized text data based, at least in part, on a predicted normalization by a first inverse text normalization model for the text data;
• applying, by the machine transcription system, a machine learning model, trained to recognize text for redaction, to the normalized text data to identify one or more portions of the normalized text data for redaction;
• redacting, by the machine transcription system, the identified one or more portions of the normalized text data;
• and
• providing, by the machine transcription system, the redacted text data to a destination.

One or more non-transitory, computer-readable storage media, storing program instructions that when executed on or across one or more computing devices cause the one or more computing devices to implement:

• receiving text data for redaction;
• causing application of a number of one or more inverse text normalization models to generate normalized text data based, at least in part, on a predicted normalization by a first inverse text normalization model for the text data;
• causing application of a machine learning model, trained to recognize text for redaction, to the normalized text data to identify one or more portions of the normalized text data for redaction;
• redacting the identified one or more portions of the normalized text data;
• and
• providing the redacted text data to a destination.