#acl All:read

= Plagiarism Detection =

Currently the most widely used code plagiarism detection software is serviced by [[http://theory.stanford.edu/~aiken/moss/|Moss]]

 . ~+`~give/stable/bin/`+~ contains scripts to make the process easier:
 * '''moss''' - sends submissions to moss for processing.
 . example:
 . ~+`% moss -l python -m 4 -b template.py -d "*/*.py"`+~
 * '''moss_setup''' - retrieve submissions and put them into directories suitable for moss-ing.
 . example:
 . ~+`% ~give/stable/bin/moss_setup ` ''`21T2 `'' ''`ass1`''+~
   * a plague directory will be created under ~/21T2.work/ass1
   * remove any files not to be included in moss plagiarism detection
   * copy template files to plague/Samples to ignore similarity from these files
 * '''moss_run''' - wrapper script for moss script.
 . example:
 . ~+`% ~give/stable/bin/moss_run ` ''`en1811 `'' ''`21T2 `'' ''`ass1 `'' ''`python `'' ''`"*/*.py"`''+~
 . ~+`% ~give/stable/bin/moss_run ` ''`-d /home/en1811/21T2.work/ass1/plague `'' ''`python `'' ''"`*/*.py"`''+~
   * last two arguments specify the programming language (python) and which files to process (all .py files for each student).
 * '''plague.pl'''
   * Paste everything on moss summary page into ~+''`moss_report_file `''+~
   * Look at similarities in code on moss pages and select plagiarised pairs:
   . ~+`% plague.pl -s ` ''`assignment `'' ''`moss_report_file `'' ''`selected_plague_file`''+~
   * Report assignment mark, submission history
   . ~+`% plague.pl -r ` ''`assignment `'' ''`selected_plague_file`''+~

[[https://www.gs.unsw.edu.au/policy/plagiarismprocedure.html|Plagiarism Procedures]]