Adjust how choose_classifier handles seed parameters #222
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This closes #221.
It also closes #224, a CI/CD bug.
Previously, we were manually setting the seeds for Spark's built-in ML models but not for XGBoost and LightGBM. This inconsistency is an oversight I made while adding XGBoost and LightGBM. Since we weren't setting the seed for XGBoost or LightGBM, the models trained by these libraries were slightly different on each run of hlink. This caused some inconsistent results from matching.
Also, the manual setting of the seeds for the Spark models did not allow users to pass in their own seeds, so they were stuck with the single seed we had chosen.
Now all of these models are handled uniformly. We accept the seed set by the user if there is one. If there is no seed in the
params
dictionary, then we add a"seed": 2133
entry before passing the parameters to the classifier. This fixes both issues.