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Application for Detection of Plagiarism
Šalplachta, Pavel ; Techet, Jiří (referee) ; Lukáš, Roman (advisor)
Bachelor's thesis is focused on programming in language C and a method of detecting plagiarism in programs written in this language. The result of thesis is application in language C too, which according similarity source codes decides if it is a plagiarism or not. Application is first of all indicated for control plagiarism in homework in subject Algorithms at Fakulty of information technogy at Brno university of technology.
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Application for Detection of Plagiarism
Kačic, Matej ; Přikryl, Zdeněk (referee) ; Lukáš, Roman (advisor)
Main goal of this thesis is to create application, which can detect plagiarism in program code of projects without skeleton. It describes constructions of C/C++ language and their usage for detection of plagiarism. Projetcs are analysed by preprocesor, lexical analyse and phase of making structure of compare. After that they are compared one to each another by statistical test and Body test depends on Longest common subsequence.
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Application for Detection of Plagiarism
Šalplachta, Pavel ; Květoňová, Šárka (referee) ; Lukáš, Roman (advisor)
This thesis is dealing with programming languages C and C++, various methods writing their constructions and development of application which detects very similar programs written in these languages. The application is intended to control plagiarism in school projects in which students have to create a program in C or C++. The application can check short programs as well as large programs divided into several modules.
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Plagiarism Recognizer in PHP Source Code
Krpec, Ondřej ; Burget, Radek (referee) ; Křivka, Zbyněk (advisor)
The main goal of this thesis is to develop a system for detecting plagiarism in sets of student assignments written in PHP language. Plagiarism is viewed as a form of code obfuscation where students deliberately perform semantics preserving transformations of an original working version to pass it o as their own. In order to detect such obfuscations we develop a tool in which we attempt to nd transformations that have been applied, using several techniques and algorithms.
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Sophisticated methods for electronic text checking
Flégl, Jan ; Malý, Jan (referee) ; Pfeifer, Václav (advisor)
The work is about plagiarism of source codes and text documents. We’d like to describe common known methods, learn something about commercial programs and make our own plagiarism detection software. At the beginning of introduction to the theoretical part we will define the plagiarism. We will also learn something about the history of plagiarsm and its situation in the Czech Republic. We will find out something about syntactic analysis, tools we can use to detect plagiarisms and how to discover it. We will see the function of the metrics on easy exercises. We will clear up the function of graphic method with line comparing. We will define advantages and disadvantages of all methods. At the end of the theoretical part we will find out something about commercial programs. In practical part we will make our own program which compares two source codes by using statistical access methods. We will check its function and ability to detect plagiarism by corpus of source codes which we will create.
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Plagiarism detection of program codes
Nečadová, Anežka ; Smital, Lukáš (referee) ; Vítek, Martin (advisor)
This semestral thesis presents definition of plagiarism and focuses primarily on solving this problem in academic world. The main topic is the detection of plagiarism. It is discussed the various steps of the detection process and special attention is given to plagiarism detection of program codes. The work mentions question of the reliability of detection tools and divides the plagiarism detection methods into basic groups. One chapter is devoted metrics for comparing files. Mentioned are two tools available to detect plagiarism. In the last chapter is analyzed own draft program for plagiarism detection of program codes. The detector was applied to a database of student’s works, and the results were plotted.
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Plagiarism detection of text documents
Lízal, Radek ; Vítek, Martin (referee) ; Smital, Lukáš (advisor)
This diploma thesis introduces the definition of plagiarism, distinguishes the types of plagiaries which often take place in praxis and the ways of determining the suspected texts. The means of detection are essential; therefore a whole chapter is dedicated to those. For the detection purposes, it is vital to pre-process the data to reduce the demand factor of the program. There is a preview of some programs which are already being used for the detection of plagiarism. The following chapter introduces some selected indications which have been implemented in the Matlab environment to create a detector of plagiaries in text documents. The created program is described in chapter eight. The applied indications and the detector response are described in a chapter called Indications testing. The testing proved the quality of these indications. The results together with pros and cons of the particular methods are discussed in the conclusion.
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Systems for checing electronic texts
Zouhar, Petr ; Malý, Jan (referee) ; Pfeifer, Václav (advisor)
The work deals with the possibility of control of electronic texts. Whether it is a source codes or standard text documents. The first chapter is devoted to a brief explanation of the term plagiarism and its characters. Sequentially we describe the methods and metrics used to detect plagiarist. Then we pay attention to detect plagiarism in the free text and source codes. We describe the way of preprocessing of a file and choice of basic units, which represent the document in the comparing. Source codes have a exact syntax. Therefore we attend to the syntax and semantic analysis in the chapter, which describes the check of source codes. The second half of the work is focused on the practical part, particularly on programs intended to control the source codes. The programs are divided to the freely available and the commercial. This is followed by their brief description and if it is a free trial possible we mention the results from this comparing. So we created a corpus of source codes. At the end of the work we focus on design of a program, which compares two source codes on the basis of statistical similarities.
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Current possibilities of detecting plagiarism in texts
Misák, Tomáš ; Přibil, Jiří (advisor) ; Krejčová, Iva (referee)
Bachelor thesis on theme "Current possibilities of detecting plagiarism in texts" is focused on plagiarism in the theses of students. Explains the concept of plagiarism, what it actually is and explains other concepts that are associated with it. Describes different types and reasons why exactly students are plagiaring. It also deals with citations and a smaller part is devoted to Copyright Act that is associated with it. The theoretical part focuses on methods for the detection of plagiarism where some texts are provided to several students in order to create plagiarism. After that it is tested through program named Theses which is designed for detection of plagiarism. The result of this is testing of functionality and its overall behavior in detection process.
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Plagiarism in Text Documents: Applications Revealing Elements of Plagiarism
Trachtová, Monika ; Přibil, Jiří (advisor) ; Váchová, Lucie (referee)
This bachelor's thesis focuses on issue of plagiarism in text documents. It explains the basic concept of plagiarism, its legislation and the law from which it is based. It defines the typology of plagiarism and the reasons of their origin. Furthermore, the bachelor's thesis focuses on existing applications of plagiarism detection in text documents and their detailed description. In the practical part will deal with analysis of selected applications. Their uses and as-sessment the quality of the results.
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