Mano Swerts created FLINK-9664:
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Summary: FlinkML Quickstart Loading Data section example doesn't
work as described
Key: FLINK-9664
URL: https://issues.apache.org/jira/browse/FLINK-9664
Project: Flink
Issue Type: Bug
Components: Documentation, Machine Learning Library
Affects Versions: 1.5.0
Reporter: Mano Swerts
The ML documentation example isn't complete:
[https://ci.apache.org/projects/flink/flink-docs-release-1.5/dev/libs/ml/quickstart.html#loading-data]
The referred section loads data from an astroparticle binary classification
dataset to showcase SVM. The dataset uses 0 and 1 as labels, which doesn't
produce correct results. The SVM predictor expects -1 and 1 labels to correctly
predict the label. The documentation, however, doesn't mention that. The
example therefore doesn't work without a clue why.
The documentation should be updated with an explicit mention to -1 and 1 labels
and a mapping function that shows the conversion of the labels.
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