Plagiarism Detection, Types & Tools – Turnitin YouTube Lecture Handouts

Dr. Manishika Jain- Join online Paper 1 intensive course. Includes tests and expected questions.

Get video tutorial on: Examrace YouTube Channel

Plagiarism Detection, Types & Tools - Turnitin

What is Included?

  • Steal idea
  • Use production without crediting
  • Commit literary theft
  • Present new idea derived from existing source
  • Failing to quote

It can be deliberate (intentional) or accidental (unintentional)

Detection Technique

Text based – tools

  • PlagAware – online search engine
  • PlagScan – online software with unique signature,
  • CheckforPlagiarism. net – fingerprint based approach,
  • iThenticate -1st online plagiarism checker in 30 languages,
  • PlagiarismDetection. org – own database

Source code based tools – computer codes (lexical similarities, parse tree, program dependent and metrics) .

  • MOSS – measure of software similarity
  • JPlag – compare programs in pairs
  • Code Match
Plagiarism Detection Methods
Plagiarism Types
  • Fingerprint: The sets represent the fingerprints and their elements are called minutiae.
  • A suspicious document is checked for plagiarism by computing its fingerprint and querying minutiae with a precomputed index of fingerprints for all documents of a reference collection.
Degree of Obfuscation and Difficulty of Detection


Monolingual Plagiarism Detection: This type of detection deals with homogeneous language settings e. g. , English-English

  • Intrinsic Plagiarism Detection: This detection approach analyses the writing style or uniqueness of the author
  • Extrinsic Plagiarism Detection: Unlike the intrinsic approach, this approach compares a submitted research article against many other available relevant digital resources in repositories

Cross-Lingual Plagiarism Detection (CLPD) : This detection approach is able to perform in heterogeneous language settings e. g. , English-Chinese.

Turnitin Software

  • To be used for PhD thesis plagiarism detection
  • Commercial service launched in 1997
  • Turnitin՚s parent company, iParadigms LLC, runs the informational website Plagiarism. org and also offers a similar plagiarism-detection service for newspaper editors and book and magazine publishers called iThenticate.
  • Other tools included with the Turnitin suite are GradeMark (online grading and feedback) and Peer Mark (peer-review services) .

Developed by: