Cache dataset features and qualities as pickle #979
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PGijsbers
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Oct 29, 2020
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PGijsbers
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Some minor changes, but also the unit tests fail so need to be fixed.
PGijsbers
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Oct 29, 2020
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Can merge if CI passes (at least some of them, to make sure the merge conflict was resolved correctly 😓 ) |
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Reference Issue
#908
What does this PR implement/fix? Explain your changes.
This PR changes the loading behavior of loading dataset qualities and dataset features. They are now loaded inside the
OpenMLDatasetclass. Furthermore, when loaded first, the parsed XML is saved as a pickle, which is loaded upon future invocations.How should this PR be tested?
New unittests in test/test_datasets/test_dataset.py
Any other comments?
This PR improves the loading speed of datasets. Obviously, the files which are cached as pickle are only large if the datasets have a lot of features. The most drastic improvement I could observe was for the dataset dorothea, where the loading time reduced from ~13s to ~0.2s.