The system is described in the following papers: 1. Sanchez-Perez, M.A., Gelbukh, A., Sidorov, G.: Adaptive algorithm for plagiarism detection: The best-performing approach at PAN 2014 text alignment competition. Lecture Notes in Computer Science, vol. 9283, Springer, 2015, pp. 402-413. 2. Sanchez-Perez, M.A., Gelbukh, A.F., Sidorov, G.: Dynamically adjustable approach through obfuscation type recognition. Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015. CEUR Workshop Proceedings, vol. 1391, CEUR-WS.org, 2015, http://ceur-ws.org/Vol-1391/92-CR.pdf. License: free for non-commercial academic purposes. Any publication that benefited from these data or software must state the origin of the data and software and cite the abovementioned paper. We will be grateful to you if you let us know of the use of the data or software and of citing our papers. Any derived work should specify the original source and its authors and contain this license, including the publication references mentioned above. If you modify this corpus or software, correct errors in it, or add annotation/functionality to it, we will be grateful if you send us the new version, to be available from this site. See also individual license files or comments in the specific files, if any.