Technique for plagiarism detection in program source code files based on design pattern

1. A method for source code plagiarism evaluation in an object orientated program based on design patterns, the method comprising:

receiving, by a plagiarism evaluation computing device, a plurality of program source code files of the object orientated program;

determining, by a plagiarism evaluation computing device, if one or more classes at least partially specified by the plurality of program source code files specify at least a portion of one or more design patterns comprising predefined modular code;

determining, by a plagiarism evaluation computing device, a plagiarism value for each of the plurality of program source code files by comparing one or more classes at least partially specified by a program source code file of the plurality of program source code files with one or more classes at least partially specified by an original program source code file;

categorizing, by a plagiarism evaluation computing device, each of the plurality of program source code files that specifies at least part of a design pattern by at least one design pattern at least partially specified by the program source code file; and

determining, by a plagiarism evaluation computing device, a total plagiarism value for a category based on the plagiarism values for each of the program source code files in the category.

2. The method of claim 1 , the method further comprising:

receiving, by a plagiarism evaluation computing device, the design patterns; and

determining, by a plagiarism evaluation computing device, a minimum number of classes required to implement each design pattern.

3. The method of claim 2 , further comprising:

determining a number of classes specified by the plurality of program source code files; and

comparing the number of classes specified by the plurality of program source code files with the minimum number of classes required to implement a design pattern.

4. The method of claim 1 , the method further comprising:

comparing the total plagiarism value with a threshold value.

5. The method of claim 1 , the method further comprising:

extracting, by a plagiarism evaluation computing device, the program source code files from binary files of the object oriented program.

6. The method of claim 1 , wherein the one or more design patterns are stored in a database.

7. A plagiarism evaluation computing device for source code plagiarism evaluation in an object orientated program based on a design pattern, the device comprising:

a processor; and

memory operatively coupled to the processor, the memory storing computer executable instructions which, when executed by the processor, cause the processor to carry out a method comprising:

receiving, by a plagiarism evaluation computing device, a plurality of program source code files of the object orientated program;

determining, by a plagiarism evaluation computing device, if one or more classes at least partially specified by the plurality of program source code files specify at least a portion of one or more design patterns, wherein a design pattern specifies predefined elements of modular code;

determining, by a plagiarism evaluation computing device, a plagiarism value for each of the plurality of program source code files by comparing one or more classes at least partially specified by a program source code file of the plurality of program source code files with one or more classes at least partially specified by an original program source code file;

categorizing, by a plagiarism evaluation computing device, each of the plurality of program source code files that specifies at least part of a design pattern by at least one design pattern at least partially specified by the program source code file; and

determining, by a plagiarism evaluation computing device, a total plagiarism value for a category based on the plagiarism values for each of the program source code files in the category.

8. The plagiarism evaluation computing device of claim 7 , wherein the method further comprises:

receiving, by a plagiarism evaluation computing device, the design patterns; and

determining, by a plagiarism evaluation computing device, a minimum number of classes required to implement each design pattern.

9. The plagiarism evaluation computing device of claim 8 , wherein the method further comprises:

determining a number of classes specified by the plurality of program source code files; and

comparing the number of classes specified by the plurality of program source code files with the minimum number of classes required to implement a design pattern.

10. The plagiarism evaluation computing device of claim 7 , wherein the method further comprises:

comparing the total plagiarism value with a threshold value.

11. The plagiarism evaluation computing device of claim 7 , wherein the method further comprises:

extracting, by a plagiarism evaluation computing device, the program source code files from binary files of the object oriented program.

12. The plagiarism evaluation computing device of claim 7 , wherein the one or more design patterns are stored in a database.

13. A non-transitory computer-readable medium having stored thereon computer-readable code that, when executed by a computing device, performs a method for source code plagiarism evaluation in an object orientated program based on design patterns, the method comprising:

storing one or more software design patterns, the one or more software design patterns representing pre-defined ways of designing a solution to a programming problem and being specified by one or more classes;

receiving a plurality of program source code files of the object orientated program;

determining whether the plurality of program source code files specify one or more of the stored software design patterns;

determining if one or more classes at least partially specified by the plurality of program source code files specify at least a portion of one or more of the stored software design patterns;

determining a plagiarism value for each of the plurality of program source code files by comparing one or more classes at least partially specified by a program source code file of the plurality of program source code files with one or more classes at least partially specified by an original program source code file;

assigning a software design pattern category to two or more of the plurality of program source code files that specify at least a portion of the same software design pattern; and

determining a total plagiarism value for a category based on the plagiarism values for each of the program source code files in the category.

14. The non-transitory computer-readable medium of claim 13 , the method further comprising:

receiving, by a plagiarism evaluation computing device, the software design patterns; and

determining, by a plagiarism evaluation computing device, a minimum number of classes required to implement each software design pattern.

15. The non-transitory computer-readable medium of claim 14 , further comprising:

determining a number of classes specified by the plurality of program source code files; and

comparing the number of classes specified by the plurality of program source code files with the minimum number of classes required to implement a stored software design pattern.

16. The non-transitory computer-readable medium of claim 13 , the method further comprising:

comparing the total plagiarism value with a threshold value.

17. The non-transitory computer-readable medium of claim 13 , the method further comprising:

extracting, by a plagiarism evaluation computing device, the program source code files from binary files of the object oriented program.

18. The non-transitory computer-readable medium of claim 13 , wherein the one or more software design patterns are stored in a database.