Tools for External Plagiarism Detection in DOCODE

In this paper we describe the algorithms and tools offered by DOCODE, a system for plagiarism detection in educational institutions, with a special focus on the task of external plagiarism detection using the Web as a source of information. In that context, although DOCODE is a full-featured system based on several algorithms, our main contribution is an algorithm that given a document is capable of retrieving similar or related documents from the Web, tackling the problem of external plagiarism detection. However, all our algorithms work together to provide high-level plagiarism detection functionalities to our users. Therefore, here we also give details about how these functionalities are bundled and presented in ad-hoc Web-based user interfaces for different kinds of clients, supporting the decision-making process regarding possible plagiarism cases.