External Plagiarism Detection using Information Retrieval and Sequence Alignment - Notebook for PAN at CLEF 2011

Abstract This paper describes the University of Sheffield entry for the 3rd International Competition on Plagiarism Detection which attempted the monolingual external plagiarism detection task. A three stage framework was used: preprocessing and indexing, candidate document selection (using an Information Retrieval based approach) and detailed analysis (using the Running Karp-Rabin Greedy String Tiling algorithm). The submitted system obtained an overall performance of 0.0804, precision of 0.2780, recall of 0.0885 and granularity of 2.18 in the formal evaluation.

• Type: Journal
• Year: 2011
• Where: CLEF
• Authors: Rao Muhammad Adeel Nawab, Mark Stevenson, Paul D. Clough
• Keywords: CLEF 2011, Document Selection, Formal Evaluation, Information Technology, Plagiarism Detection