Project details for ROC algorithms

Logo ROC algorithms 1.0

by tfawcett - January 9, 2010, 19:52:00 CET [ BibTeX BibTeX for corresponding Paper Download ]

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Description:

This package contains a set of Perl programs for generating and manipulating ROC curves. They are based on the algorithms in "ROC Graphs: Notes and Practical Considerations for Researchers". There are several versions of this article. This is the original (and longest) version, which mentions the software:

Tom Fawcett (2003). "ROC Graphs: Notes and Practical Considerations for Researchers", HP Labs Tech Report HPL-2003-4. Available from: http://www.purl.org/net/tfawcett/papers/ROC101.pdf

Please cite this paper if you use these programs in a published work.

A shorter, more polished version was published as:

Tom Fawcett (2006). "An Introduction to ROC Analysis", Pattern Recognition Letters, Volume 27, Issue 8, Pages 861-874. Available from: http://dx.doi.org/10.1016/j.patrec.2005.10.010

Very little is needed to run these programs, other than a working Perl interpreter. See the file INSTALL for details.

ALGORITHMS:

The program ROC.pl generates ROC curves (algorithm 2) and calculates the area under the ROC curve (algorithm 3). Since these are so similar, one program does both. The program vertical_average.pl implements algorithm 4, and threshold_average.pl implements algorithm 5. Note that threshold_average.pl can actually select threshold partitions in one of two ways: by frequency and by range. Algorithm 5 in the paper does it by frequency, whereas by range makes slightly more sense, so that is the default of threshold_average.pl. It shouldn't make much difference except in degenerate cases.

ROC CONVEX HULL

If you're interested in computing the ROC convex hull, see a related publicly available perl script, ROCCH, available from:

http://home.comcast.net/~TOM.FAWCETT/public_html/software/

Changes to previous version:

Initial Announcement on mloss.org.

BibTeX Entry: Download
Corresponding Paper BibTeX Entry: Download
Supported Operating Systems: Platform Independent
Data Formats: Ascii
Tags: Evaluation, Roc
Archive: download here

Comments

Tom Fawcett (on January 9, 2010, 19:52:55)

Initial announcement on mloss.org

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