Building Personal Recognisers


Building Personal Recognisers

To build a personal recogniser for a user with a speech disorder,

1. Find an initial operating point:

Identify a task vocabulary which is small enough to enable reasonable recognition performance but useful enough to retain the user’s interest

Record as much data for this vocabulary as is practical

2. Build an initial recogniser, perhaps by adapting from existing models

3. Install this recogniser and collect data as it is used

Provide software which allows the user to practice. Make the practice interesting.

The software should provide the user with feedback about the quality of her/his production

The feedback should relate to the user’s best attempt so far, not to an ideal production

4. When there is sufficient new data, retrain the recogniser and consider increasing the vocabulary

5. Repeat 3 and 4 several times. Therapists call this the Virtuous Circle