Measuring Whitespace Pattern Sequences as an Indication of Plagiarism

• 作者: Nikolaus Baer Robert Zeidman
• 来源期刊: 软件工程与应用(英文)
• 学科: 医学
• 关键词: PLAGIARISM SOURCE CODE SOURCE CODE Similarity Whitespace OBFUSCATION Indentation Maintainability Copyright INFRINGEMENT Intellectual Property LITIGATION Open SOURCE
• 年，卷（期）: 2012,（4）
• 页码范围: 249-254
• 页数: 6页
• 分类号: R73

摘要

There are several methods and technologies for comparing the statements, comments, strings, identifiers, and other visible elements of source code in order to efficiently identify similarity. In a prior paper we found that comparing the whitespace patterns was not precise enough to identify copying by itself. However, several possible methods for improving the precision of a whitespace pattern comparison were presented, the most promising of which was an examination of the sequences of lines with matching whitespace patterns. This paper demonstrates a method of evaluating the sequences of matching whitespace patterns and a detailed study of the method’s reliability.