Tommaso Teofili created HAMA-809:
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Summary: Underflow in LogisticRegressionModel
Key: HAMA-809
URL: https://issues.apache.org/jira/browse/HAMA-809
Project: Hama
Issue Type: Bug
Components: machine learning
Reporter: Tommaso Teofili
Assignee: Tommaso Teofili
There's an underflow bug in _LogisticRegressionModel_ when calculating the
hypothesis output due to _double_ limitations.
Therefore we should leverage _BigDecimal_s for such operations as they allow
for more precise calculation.
Also the log algorithm in LRM is wrong and needs to be fixed.
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