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Deletions are marked like this. Additions are marked like this.
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Currently the most widely used plagiarism detection software is serviced by [[http://theory.stanford.edu/~aiken/moss/|Moss]] Currently the most widely used code plagiarism detection software is serviced by [[http://theory.stanford.edu/~aiken/moss/|Moss]]
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 . ~+`~give/stable/bin/`+~ contains a couple of scripts to make the process easier:
 * '''moss_setup''' - retrieve submissions and put them into directories suitable for moss-ing. Run this script from the class account. 		 . ~+`~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.
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   . a ~+`plague`+~ directory will be created under ~+`~/12s2.work/assign1`+~
   . Remove any files not to be included in moss plagiarism detection
 * '''moss_run''' - wrapper script for moss, sends submissions to moss for processing.		    * 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.
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 . ~+`% ~give/stable/bin/moss_run ` ''`-d /home/en1811/21T2.work/ass1/plague `'' ''`python `'' ''"`*/*.c\py"`''+~
 . the last two arguments specify the programming language (python code) and which files to process (all .py files for each student).
 . put template files under plague/Samples to ignore similarity from these files
 * '''moss'''
 . example:
 . ~+`% cd $WORK/ass1/plague; moss -l python -m 4 -b template.py -d "*/*.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`''+~

Plagiarism Detection

Currently the most widely used code plagiarism detection software is serviced by 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

Plagiarism Procedures

Plague (last edited 2021-09-10 08:24:32 by MeichengWhale)