Tackling the PAN’09 External Plagiarism Detection Corpus with a Desktop Plaigiarism Detector

J. Malcolm, P.C.R. Lane

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Abstract

Ferret is a fast and effective tool for detecting similarities in a group of files. Applying it to the PAN’09 corpus required modifications to meet the requirements of the competition, mainly to deal with the very large number of files, the large size of some of them, and to automate some of the decisions that would normally be made by a human operator. Ferret was able to detect numerous files in the development corpus that contain substantial similarities not marked as plagiarism, but it also identified quite a lot of pairs where random similarities masked actual plagiarism. An improved metric is therefore indicated if the “plagiarised” or “not plagiarised” decision is to be automated.
Original languageEnglish
Title of host publicationProcs of the SEPLN'09 Workshop on Uncovering Plagiarsim, Authorship and Social Software Misuse
EditorsBenno Stein, Paolo Rosso
Pages29-33
Publication statusPublished - 2009

Keywords

  • plagiarism
  • ferret
  • text analysis
  • trigrams

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