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Create custom pipelines to extract more information than is available through the Default Clinical Pipeline. Special Analysis Engines are in various cTAKES modules. Analysis Engines can be removed or added to pipelines to obtain desired results.

There are four methods available to create custom pipelines.

  1. XML Descriptor files are the original method used to create pipelines in Apache UIMA™.  Though self-descriptive, they are verbose and error prone.
  2. uimaFIT™ enables creation of pipelines through Java code.  This greatly simplifies unit testing and experimentation.

  3. The PipelineBuilder class in ctakes-core is a facade for uimaFIT™ factories and objects.

  4. Piper files are a modern equivalent of the XML descriptor files.  Piper files list basic commands and parameters in a flat format.

Step-by-step guide

  1. Create an empty text file.  The standard file extension for piper files is .piper .
  2. If applicable, start with a load of an available piper file.

 

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