Daniel Russ created OPENNLP-759:
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Summary: Speed up GIS training by saving Executor in the GISTrainer
Key: OPENNLP-759
URL: https://issues.apache.org/jira/browse/OPENNLP-759
Project: OpenNLP
Issue Type: Improvement
Components: Machine Learning
Affects Versions: maxent-3.0.3
Reporter: Daniel Russ
Priority: Minor
In GISTrainer.nextIteration(double) an ExecutorService is created and shutdown.
I don't see a reason to create a ExecutorService for each iteration.
If you create the ExecutorService in the TrainModels(int, dataindexer, Prior,
int, int) method you can save it as a field in GISTrainer or pass it as an
argument to findParameters(int, double).
To test it out, I made a MyGIS and MyGISTrainer classes with the fixes. There
was a 5% speedup with 100 my dataset and 100 iterations of GIS.
I would be happy to share the code with you. (I can not share my data though,
sorry data-use agreements).
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