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Effective Amazon Machine Learning by Alexis Perrier

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Reading the results file

The output results file is compressed with gzip, originates from the UNIX world, and offers better compression than the more common zip compression. A simple click should be sufficient to open and decompress the gzipped results file into a readable CSV file. Alternatively, a call to the gunzip command from the command line should work. Take a look at http://www.gzip.org/ for installation on different systems.

For binary classification, the decompressed results file contains two or three columns, depending on whether the initial input file contained the target or not. In our case of binary classification, the result file has the following columns: trueLabel, bestAnswer, and score, where trueLabel is the initial survived ...

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