LightGBM Customized Parser Tutorial

The purpose of this document is to give you a tutorial on how to customize your own parser and integrate it in LightGBM to do training. The basic methodology is to register custom parser to parser factory via reflector.

Follow LightGBM Parser interface and design your parser by implementing constructor, ParseOneLine, NumFeatures functions. Then register the custom parser. See FreeForm2Parser as an example.
Append source file of your parser to library in CMakeLists.txt. You could find that LightGBM and transform library are used as dependencies.
See Installation Guide for dependencies and your parser installation.
See Transform tutorial for how to use LightGBM integrated with your parser version.

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