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# Post-Processing with the Eduction API

To perform post-processing in an application built on the Eduction API, add post-processing tasks to the Eduction engine. You can add the tasks:

- At the time the engine is created, if you construct the engine by supplying a configuration. When you create an Eduction engine from a configuration, by calling `EdkEngineCreateFromConfigFile` in the C API, or using the `EdkEngine` constructor in the Java API, any post-processing tasks in the configuration are added to the engine automatically.

- After the engine is created, by calling the appropriate function:

  - `EdkEngineAddPostProcessingTask` in the C API.
  - `addPostProcessingTask` in the Java API.

To specify the minimum score that is required for a match to be returned, after all post-processing tasks have completed, you can use the following functions:

- `EdkEngineSetPostProcessingThreshold` in the C API.
- `setPostProcessingThreshold` in the Java API.

The matches returned by the `EdkGetNextMatch` function in the C API, or by iterating over the matches in the Java API, reflect any modifications made by post-processing. If a post-processing task discards a match or its score does not meet the threshold you have specified, it is not returned at all.

If you configure a post-processing task that processes matches en masse, the API does not return matches until all input has been received. This is necessary because an en masse post-processing task requires all of the matches at the same time.

The Eduction SDK includes reference documentation for the API. For more information about the SDK, see Eduction SDK.

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