User guide
Chapter 12: Improving recognition accuracy
About the Accuracy Assistant
The Accuracy Assistant is a screen that helps you determine which tool to use to improve
the recognition accuracy on your system. The Accuracy Assistant does this by asking a
series of questions and, depending on the answers, provides links to the proper tool.
To run the Accuracy Assistant
1. Click Help> Improve My Accuracy on the DragonBar.
2. In the Accuracy Center, click or say "Which tool should I use?"
3. In the Accuracy Assistant window, click or say the link that best matches the accuracy
problem you are trying to solve and follow the directions on the screen.
Running the Acoustic and Language Model
Optimizer
Use this procedure to increase Dragon's accuracy with the Acoustic and Language Model
Optimizer.
As you make and train corrections, train new words, use commands, and perform additional
training, Dragon stores the acoustic and language data in an archive and uses it to enhance
recognition accuracy. The Acoustic and Language Model Optimizer accumulates this data
from session to session.
Acoustic Optimization
Perform Acoustic Optimization to update your User Profiles with accumulated acoustic
data from any corrections and additional training you do.
Language Model Optimization
Perform Language Model Optimization to update your language model. The language model
contains statistical information that predicts which words are most likely to occur in the
context of the user’s speech. Language Model Optimization uses text extracted from a
user's .DRA files to add commonly used word sequences to the language model. Based on
the speech data collected, Language Model Optimization may change the language model
you selected when you created your User Profile. For example, Dragon may change Best-
Match III to Inland Northern US (Great Lakes area) - BestMatch III.
Before you begin
n Because it can take up to an hour to incorporate the analyzed data into your User Pro-
file, you may want to schedule the optimization when you are not using your com-
puter. You can schedule optimization using the Acoustic and Language Model
Optimizer Scheduler. If you are part of an organization or company and you do not
have Dragon administrator rights, you can request that your Dragon administrator
schedule optimization.
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