• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.145-148
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• 2013

음악 표절 분석은 특정 수치로 정형화된 사례가 없다. 음악과 관련된 표절 시비는 모두 전문가의 감성에 의존할 것이 사실이다. 따라서 전문가 사이에 감정이 개입될 여지가 있기 때문에 표절 시비가 끊이지 않는다. 따라서 본 논문에서는 지금까지 사람의 감성에만 의존하였던 음원의 표절 분석을 시스템적으로 분석하기 위해 필요한 음원 요소에 대해서 연구하고자 한다. 따라서 음악 표절 분석을 위해 필요한 음원 요소에 대해서 분석하고, 분석 시스템 구현에 필요한 MusicString 문법에 대해 기술한다. 또한 구현에 필요한 AST 구성과 유사도 알고리즘에 대해서 기술한다. 본 논문은 향후 음악표절 분석 시스템을 자동화하기 위한 초석을 마련할 수 있으며, 검수자의 감성에 의존하는 표절 관련 시비를 조금이나마 개선하고자 한다.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.10a
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• pp.279-282
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• 2013

In this paper, we propose a novel implementation method to detect musical plagiarism which can provide human experts evidences to decide plagiarism using cutting-edge information technologies and thereby can solve exhaustive disputes on cases of musical plagiarism when the cases are decided by human experts' emotional preferences.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.17 no.12
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• pp.3016-3022
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• 2013

In this paper, we propose a novel design and implementation method to detect musical plagiarism which can provide human experts evidences to decide plagiarism using cutting-edge information technologies and thereby can solve exhaustive disputes on cases of musical plagiarism when the cases are decided by human experts' emotional preferences. We first search digital music elements to analyze music source and examine how to use these in plagiarism analysis using IT techniques. Therefore we designed music plagiarism analysis system by using MusicString which is supported in JFugue and construct AST to manipulate music plagiarism analysis efficiently.

• Proceedings of the Korean Information Science Society Conference
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• 2008.06c
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• pp.248-251
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• 2008

문서 표절이 사회적으로 이슈가 됨에 따라 표절 문서를 판별할 수 있는 시스템의 필요성이 대두되었다. 문서 표절 검사 시스템에서 가장 중요한 이슈는 성능과 속도인데 이 두 가지를 모두 만족시키기 위해서는 표절을 상세하게 검사하기 전에 표절 의심 문서에 대한 비교 문서군이 크기를 최적화하여 표절 검사 범위를 최대한 작게 만들어야 한다. 비교 문서군의 크기를 최적화하기 위해서는 표절 의심 문서와 상관이 없는 문서를 필터링 하는 작업이 필요하다. 이 논문에서는 문서를 빠르게 필터링 하기 위해서 웹 문서 검색에 사용되는 Inverted Index을 이용하여 적당한 시간 안에 비교 문서군의 크기를 최적화 하는 방법들을 알아보고 각각의 방법들의 성능을 비교 분석하는 방법을 제시하며 그 방법들을 바탕으로 성능을 분석하여 최적화된 문서 필터링 방법을 알아본다.

• Journal of the Korea Society of Computer and Information
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• v.18 no.8
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• pp.43-52
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• 2013

The purpose of this paper is researching musical elements to analyze plagiarism between two sources. We first search digital music elements to analyze music source and examine how to use these in plagiarism analysis using compiler techniques. In addition we are used open source Java API JFugue to process complex MIDI music data simply. Therefore we designed music plagiarism analysis system by using MusicString which is supported in JFugue and construct AST after investigate MusicString's syntax processing elements to manipulate music plagiarism analysis efficiently. So far music plagiarism analysis is evaluated emotionally and subjectively. But this paper suggests first step to build plagiarism analysis systemically. If this research is well utilized, this is very meaningful to standardize systemically which music is plagiarized or not.

• Journal of KIISE:Software and Applications
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• v.35 no.7
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• pp.442-451
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• 2008

Most plagiarism detection systems evaluate the similarity of source codes and detect plagiarized program pairs. If we use the source codes in plagiarism detection, the source code security can be a significant problem. Plagiarism detection based on target code can be used for protecting the security of source codes. In this paper, we propose a new plagiarism detection technique for Java programs using bytecodes without referring their source codes. The plagiarism detection procedure using bytecode consists of two major steps. First, we generate the token sequences from the Java class file by analyzing the code area of methods. Then, we evaluate the similarity between token sequences using the adaptive local alignment. According to the experimental results, we can find the distributions of similarities of the source codes and that of bytecodes are very similar. Also, the correlation between the similarities of source code pairs and those of bytecode pairs is high enough for typical test data. The plagiarism detection system using bytecode can be used as a preliminary verifying tool before detecting the plagiarism by source code comparison.

• Journal of The Korean Association of Information Education
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• v.12 no.2
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• pp.183-194
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• 2008

This research was conducted from the perspective of student management focusing on such central topic as realization of research ethics on the basis of research ethics case study model. In this study, improvement method for research ethics education through means of application of DEVAC System, which is a paper plagiarism detection system, and survey on current status of research ethics in college education and degree of consciousness thereof were explored. Through these investigations, a topic relating to establishment of the foundation in order to foster consciousness of research ethics in the college education was established as the primary purpose of this study. To accomplish the purpose of this study, firstly, actual situation of paper plagiarism committed by the college students and their consciousness were surveyed. Secondly, the research ethics education was examined through means of applying DEVAC paper plagiarism detection system. The results from investigations revealed the followings: First, 424 students (65.43%) who participated in this research and survey on the fact of paper plagiarism had experience of report plagiarism, and the result of investigation showed that 49.3% of students among those who had experience of paper plagiarism committed report plagiarism more than three times in a semester. And, 34.1% of participants showed a positive response to the use of a paper plagiarism detection system in the college, and results from the investigation displayed that the creative education (39.0%) marked the highest scores as in the educational method to reinforce the research ethics. Second, the results from examination of paper plagiarism having applied DEVAC system indicated that use of this system can be an alternative to prevent paper plagiarism from students. It is realized through this study that there is a necessity in various respects to build up the foundation which will enable individual students to improve their consciousness to such a degree so as to make them clearly recognize the fact that plagiarism is criminal act.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.147-150
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• 2006

본 논문에서는 각종 언어로 구현된 프로그램의 소스 코드를 표절 하였을 경우 이를 효과적으로 탐지하는 방법과 이론을 제시하고자 한다. 기존에 사용되고 있는 프로그램 표절(plagiarism) 검사 소프트웨어의 장단점을 분석하고, 특히 단점을 극복하기 위한 방법으로 Pattern Matching을 이용한 표절 검출방법을 소개한다. 그리고 기존의 Pattern Matching을 이용한 방법에서 나타나는 문제점을 극복하여 좀 더 발전된 방식의 자동 표절 검출 시스템을 소개하고자 한다.

• KIPS Transactions on Software and Data Engineering
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• v.8 no.3
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• pp.109-114
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• 2019

The similarity detecting method that is basically used in most plagiarism detecting systems is to use the frequency of shared words based on morphological analysis. However, this method has limitations on detecting accurate degree of similarity, especially when similar words concerning the same topics are used, sentences are partially separately excerpted, or postpositions and endings of words are similar. In order to overcome this problem, we have designed and implemented a plagiarism detecting system that provides more reliable similarity information by measuring sentence similarity and syntactic word similarity in addition to the conventional word similarity. We have carried out a comparison of on our system with a conventional system using only word similarity. The comparative experiment has shown that our system can detect plagiarized document that the conventional system can detect or cannot.

• Proceedings of the Korea Contents Association Conference
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• 2003.11a
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• pp.53-59
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• 2003

Recently, social interest are increasing to e-learning system. for realizing efficient e-teaming system, reports plagiarism inspection is the most important topic. This paper describes the methods of reports plagiarism inspection and analyzing the S/W tools to implement e-learning system.