• Proceedings of the Korea Information Processing Society Conference
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• 2002.11a
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• pp.467-470
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• 2002

3D 게임 산업이 발전하고 여러 사용자가 온라인 상에서 즐길 수 있도록 대형화되면서 그 규모 또한 대형화되고 있다. 본 논문은 대규모 실외용 지형을 생성하기에 적합하도록 계층화된 지형 구조를 소개하고 있으며, 기존의 지형 CLOD 알고리즘을 개선하여 넓고 구조화된 지형의 렌더링 속도 문제를 해결하였다. 이를 통하여 대규모 온라인 게임의 지명 구성 시 발생하는 지형 최적화 문제를 해결하고 실시간으로 게임을 진행할 수 있다.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07a
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• pp.664-666
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• 2005

시맨틱 웹은 네트워크에 존재하는 자원에 의미를 부여하고 이를 컴퓨터가 자동으로 처리 할 수 있도록 설계된 차세대 지능형 웹이라 할 수 있다. 그러나 수많은 양의 문서를 대상으로 각각의 의미를 정의하기 어려울 뿐만 아니라 이미 정의된 의미를 바꾸는 데에도 문제가 있다. 또한 여러 종류의 의미를 중첩적으로 갖는 것이 힘들며, 문서 검색을 하는데 있어 전체 네트워크를 대상으로 검색해야 한다는 정에서 소모적인 면을 가지고 있다. 본 논문에서는 문서의 의미 정의에 있어 내재된 문제점과 다의성 문제를 해결하기 위해, 문서와 대응할 수 있는 의미를 구조화된 형식에 따라 분리하여 이를 통합적으로 관리 할 수 있는 SR(Semantic Repository)을 설계 하고자 한다. 여기서 SR은 각 문서에 대응되는 의미와 각 문서들 사이의 독립된 의미관계만을 나타내므로 검색에 따른 부하 감소를 기대할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.11a
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• pp.1699-1701
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• 2013

최근 프로그래밍 교육이 새로운 방식의 사고력을 길러준다는 점에서 컴퓨터 공학 전공자뿐 아니라 일반인에게도 그 중요성이 강조되고 있다. 이러한 추세에 따라 프로그래밍 교육을 통해 길러지는 새로운 사고 과정인 computational thinking 관련 연구가 다양하게 시도되고 있다. 그러나 대부분의 연구가 특정 프로그래밍 언어에 의존적인 평가도구를 개발하여 측정하고 있으며 프로그래밍 경험 자체가 일상생활에서 일어나는 현상의 문제 해결을 위한 computational thinking에 영향을 주었는지를 연구한 결과는 아직 명확히 알려진 바가 없다. 따라서 본 연구는 프로그래밍 경험 유무에 따라 computational thinking에 차이가 있는가를 알아보았으며 그 결과 프로그래밍 경험이 있는 학생이 일상에서 일어나는 복잡한 문제를 더 논리적이고 상세하게 추상화하고, 구조화를 통해 더 명확한 모델링을 하였음을 알 수 있었다. 결론적으로 프로그래밍 경험 유무에 따라 computational thinking의 차이가 있음을 알 수 있었으며, computational thinking의 함양을 위해 프로그래밍 교육이 도움이 될 것으로 기대할 수 있다.

• 대한공업교육학회지
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• v.32 no.1
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• pp.1-32
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• 2007

The purpose of this study was to verify that the practical skill instruction of the heat treatment and the tensile strength test using the problem-based learning is more effective than the traditional skill instruction in improving the key competencies. For the study, various literature researches were reviewed intensively about problem solving process, problem -based learning, and learning principals. The process of the practical skill instruction using the problem-based learning was composed with planning, executing, testing and evaluating. Based upon the conclusion of this study, the practical skill instruction using the problem-based learning was more effective than the traditional practical skill instruction of the heat treatment and the tensile strength test in improving the key competencies.

• Journal of Korean Society of Forest Science
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• v.110 no.2
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• pp.179-188
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• 2021

Biodiversity informatics applies information technology methods in organizing, accessing, visualizing, and analyzing primary biodiversity data and quantitative data management through the scientific names of accepted names and synonyms. We reviewed the GBIF data published by China, Japan, Taiwan, and internal institutes, such as NIBR, NIE, and KNA of the Republic of Korea, and assessed data in diverse aspects of data quality using BRAHMS software. Most data from four Asian countries have quality problems with the lack of data consistency and missing information on georeferenced data, collectors, collection date, and place names (gazetteers) or other invalid data forms. The major problem is that biodiversity management institutions in East Asia are using unstructured databases and simple spreadsheet-type data. Owing to the nature of the biodiversity information, if data relationships are not structured, it would be impossible to secure the data integrity of scientific names, human names, geographical names, literature, and ecological information. For data quality, it is essential to build data integrity for database management and training systems for taxonomists who are continuous data managers to correct errors. Thus, publishers in East Asia play an essential role not only in using specialized software to manage biodiversity data but also in developing structured databases and ensuring their integration and value within biodiversity publishing platforms.

• Journal of the Korean Chemical Society
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• v.52 no.2
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• pp.179-185
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• 2008

purpose of this study is to investigate the relationship between high school students' Problem Finding Ability (PFA) and chemistry problem solving ability. To achieve this purpose, the interrelationship between the results of PFA in ill-structured scientific problem situation and the scores of sham examination in chemistry I of College Scholastic Ability Test (CSAT) was analyzed. The results of this study turned out to be as follows: There was correlation (r=.346) between the score of PFA test and that of sham examination in chemistry I of the CSAT. And a little correlation (r=.390) between PFA and students application ability which is one of the sub factors in sham examination of the CSAT. Especially, in the high achievers group there was high correlation (r=.446) between students fluency which is one of the sub factors in PFA, and application ability. This implies that the application ability of high achievers has something to do with their PFA for a variety of problems. As for the PFA between high achievers and low achievers, there was no significant difference (t=.830, p=.411).

• The Journal of the Korea Contents Association
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• v.15 no.12
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• pp.304-313
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• 2015

The purpose of this study was to identify the significant predictors of drinking problem among college students attending health and welfare department. A total of 538 college students attending health and welfare department were selected through convenient sampling. Data were collected using self-reporting questionnaires, which were constructed to include depression, anxiety, abstinence self-efficacy, and drinking behavior. SPSS 18.0 was used for data analysis and descriptive statistics, t-test, ANOVA, Scheffe's test, Pearson Correlation coefficients, and multiple regression were done. Drinking problem was positively correlated to the depression and anger while negatively correlated to the abstinence self-efficacy. The significant predictors of drinking behavior were sex, grade, anxiety, and abstinence self-efficacy. The result of this study suggest that drinking problem prevention program should consider improving self management skills by effective management of negative emotions along with enhancing self-efficacy as a cognitive strategy.

• Convergence Security Journal
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• v.13 no.2
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• pp.175-183
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• 2013

This study determined the correlation between College Life in Freshmen critical thinking disposition; problem solving process. It also examined the impact of critical thinking disposition on problem solving process. The data was collected from 215 Freshmen members. Descriptive statistics, t-test, ANOVA, scheffe test, pearson correlation analysis and multiple regression analysis were performed. Results: In critical thinking disposition, there were significants differences in age, interpersonal relationships. In multiple regression analysis, critical thinking disposition and major satisfaction were significants factors of problem process ability explaining 38% Conclusion: To enhance problem process ability for freshmen, it is necessary to develop teaching program and curriculum.

• The Journal of the Korea Contents Association
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• v.12 no.6
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• pp.328-337
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• 2012

This study was conducted to investigate academic self-efficacy, learning motivation, and self-directed learning which influence problem-solving ability in nursing students. A total of 217 third year students were recruited from two nursing colleges in Gwangju. Structured questionnaire was self-administered from March 2 to 31, 2012. In academic self-efficacy, there were significant differences in gender, high school type, character. Problem-solving ability showed statistically significant differences in curriculum usability after graduation. In multiple regression analysis, self-efficacy, learning motivation and self-directed learning were significant factors of problem-solving ability explaining 37.3% of the variables. In conclusion, self-efficacy, learning motivation, and self-directed learning had a positive effect on problem-solving ability in nursing students. To enhance problem-solving ability for nursing students, it is necessary to develop teaching program and curriculum for increasing academic self-efficacy, learning motivation, and self-directed learning.

• Journal of The Korean Association For Science Education
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• v.34 no.5
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• pp.479-490
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• 2014

The purpose of this study is to develop an argument-based modeling strategy, utilizing writing and argumentation for communication in science education. We need to support students and teachers who have difficulty in modeling in science education, this strategy focuses on development of four kinds of factors as follows: First, awareness of problems, recognizing in association with problems by observing several problematic situations. Second is science concept structuralization suggesting enough science concepts by organization for scientific explanation. The third is claim-evidence appropriateness that suggests appropriate representation as evidence for assertions. Last, the use of various representations and multimodal representations that converts and integrates these representations in evidence suggestion. For the development of these four factors, this study organized three stages. 'Recognition process' for understanding of multimodal representations, and 'Interpretation process' for understanding of activity according to multimodal representations, 'Application process' for understanding of modeling through argumentation. This application process has been done with eight stages of 'Asking questions or problems - Planning experiment - Investigation through observation on experiment - Analyzing and interpreting data - Constructing pre-model - Presenting model - Expressing model using multimodal representations - Evaluating model - Revising model'. After this application process, students could have opportunity to form scientific knowledge by making their own model as scientific explanation system for the phenomenon of the natural world they observed during a series of courses of modeling.