• Journal of KIISE:Software and Applications
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• v.31 no.1
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• pp.82-88
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• 2004

Comparing many programs like programming assignments one by one requires many costs. Moreover, if the checker would evaluate or grade assignments, much more time will be required. Even through the checker invest much time, fairness is not always guaranteed. These problems can be solved easily by grouping similar programs. So, programs after grouping can be easily evaluated and graded. In this paper, we propose and implement algerian performing grouping by similarity on many programs. The grouping algorithm evaluates similarity using algorithm proposed in (9), and performs a grouping following high similarity order. By using this grouping algorithm, the number of comparison among N programs can be reduced from N-1 times to N(N-1)/2 times. In the part of experiment and evaluation of this paper, we actually showed evaluation result by similarity using randomly 10 programming assignments at the university.

• Journal of Internet Computing and Services
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• v.6 no.1
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• pp.51-64
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• 2005

In this paper, we introduce a system for evaluating similarity of C program source code using method which compares syntax-trees each others. This method supposes two characteristic features as against other systems. It is not sensitive for program style such as indentation, white space, and comments, and changing order of control structure like sentences, code block, procedures, and so on. Another is that it can detect a syntax-error cause of using paring technique, We introduce algorithms for similarity evaluation method and grouping method that reduces the number of comparison, In the examination section, we show a test result of program similarity evaluation and its reduced iteration by grouping algorithm.

• The KIPS Transactions:PartA
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• v.12A no.2 s.92
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• pp.109-116
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• 2005

In this paper, we introduce the method that a user analyses the similarity of the two programs by using keyword from the syntactic tree, created after the syntax analysis, and its implementation. The main advantage of the method is the performance improvement through using only keyword of syntax tree. In the paper, we propose the similarity evaluation model and how we extract keyword from syntax tree. In addition, we also show the improvement in the performance in analysis and in the system's structure. We expect that our system will be utilized in the similarity evaluation in text and XML documents.

• Korean Journal of Child Education & Care
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• v.17 no.4
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• pp.233-258
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• 2017

Although listening to music is the most basic musical experience that is ahead of all the other musical activities, it tends to be neglected due to lack of awareness and difficult teaching methods. This study is to compose integrative music appreciation by reflecting thoughts of children, draw children's attention to listening to music, and let them to discover and create musical concept and structures by themselves, accompanied by related activities through which children can express their thoughts and feelings with children's poem. Considering the peculiarities of three-four year-olds, it may be difficult for them to create poems individually, so we let them to write poems through small group discussion in which they can share their opinions and observe their peers' reaction. We provided a teaching method to teachers who find activities of listening to music and writing poems difficult, then we analyzed the effect. When children finished writing poems in small groups through integrative music appreciation reflecting their thoughts, they placed greater weight on preparing to listen to music at first, but going through the program, they discovered musical concepts and became active in music appreciation. In the related activity, writing poems inspired them to think creatively, listening to their peer's stories. Even children who were not interested in children's poem showed higher participation. Teachers found children's creative words to be interesting, discovering the joy of creation.