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2006 | OriginalPaper | Chapter

Intrinsic Plagiarism Detection

Authors : Sven Meyer zu Eissen, Benno Stein

Published in: Advances in Information Retrieval

Publisher: Springer Berlin Heidelberg

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Current research in the field of automatic plagiarism detection for text documents focuses on algorithms that compare plagiarized documents against potential original documents. Though these approaches perform well in identifying copied or even modified passages, they assume a closed world: a reference collection must be given against which a plagiarized document can be compared.

This raises the question whether plagiarized passages within a document can be detected automatically if no reference is given, e. g. if the plagiarized passages stem from a book that is not available in digital form. We call this problem class

intrinsic plagiarism detection

. The paper is devoted to this problem class; it shows that it is possible to identify potentially plagiarized passages by analyzing a single document with respect to variations in writing style.

Our contributions are fourfold: (

i

) a taxonomy of plagiarism delicts along with detection methods, (

ii

) new features for the quantification of style aspects, (

iii

) a publicly available plagiarism corpus for benchmark comparisons, and (

iv

) promising results in non-trivial plagiarism detection settings: in our experiments we achieved recall values of 85% with a precision of 75% and better.

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Metadata
Title
Intrinsic Plagiarism Detection
Authors
Sven Meyer zu Eissen
Benno Stein
Copyright Year
2006
Publisher
Springer Berlin Heidelberg
DOI
https://doi.org/10.1007/11735106_66