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GEval

GEval is a library (and a stand-alone tool) for evaluating the results of solutions to machine learning challenges as defined in the Gonito platform.

Note that GEval is only about machine learning evaluation. No actual machine learning algorithms are available here.

Installing

You need Haskell Stack, then install with:

git clone https://github.com/filipg/geval
cd geval
stack setup
stack install

By default geval library is installed in $HOME/.local/bin, so to run geval you need to either add $HOME/.local/bin to $PATH or to type:

PATH="$HOME/.local/bin" geval

Directory structure of a Gonito challenge

A definition of a Gonito challenge should be put in a separate directory (preferably as a separate Git repo). Such a directory should have the following structure:

  • config.txt — simple configuration file with options the same as the ones accepted by geval binary (see below), usually just a metric is specified here (e.g. --metric BLEU), also non-default file names could be given here (e.g. --test-name test-B for a non-standard test subdirectory)
  • README.md — description of a challenge in Markdown
  • train/ — subdirectory with training data (if training data are supplied for a given Gonito challenge at all)
  • train/train.tsv — the usual name of training data (this name is not required and could be more than file), the first column is the target (predicted value), the other columns represent features, no header is assumed
  • dev-0/ — subdirectory with a development set (a sample test set, which won't be used for the final evaluation)
  • dev-0/in.tsv — input data (the same format as train/train.tsv, but without the first column)
  • dev-0/expected.tsv — values to be guessed (note that paste dev-0/expected.tsv dev-0/in.tsv should give the same format as train/train.tsv)
  • dev-1/, dev-2, ... — other dev sets (if supplied)
  • test-A/ — subdirectory with the test set
  • test-A/in.tsv — test input (the same format as dev-0/in.tsv)
  • test-A/expected.tsv — values to be guessed (the same format as dev-0/expected.tsv), note that this file should be "hidden" by the organizers of a Gonito challenge, see notes on the structure of commits below
  • test-B, test-C, ... — other alternative test sets (if supplied)