• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2004.03a
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• pp.63-69
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• 2004

본 연구에서는 시설물분야 기본지리정보 데이터모델 표준 개발을 위해 시설물분야 기본지리정보와 관련된 국내ㆍ외 사례분석과 사용자요구사항 및 시설물분야 전문가의 의견수렴을 통해 시설물분야 기본지리정보의 항목 선정을 수행하였으며, 선정된 범위에 대해 개념설계와 정보구조설계를 통한 데이터모델 설계를 수행하고, 최종적으로 설계된 데이터모델의 표준안을 제시하였다. 시설물분야 기본지리정보의 데이터모델 설계는 주제 및 부 주제를 정의하고 항목리스트를 작성하는 개념설계와 지형지물 Class 및 Type정의, 속성 및 도메인리스트정의, 관계정의 및 Class 다이어그램을 작성하는 정보구조 데이터모델 설계를 수행하고 설계된 내용은 데이터모델 통합설계서로 작성하였다.

• Feed Journal
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• v.5 no.11 s.51
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• pp.104-109
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• 2007

다볼바이오 류은호 대표는 수년간 연구된 사료 가공기술을 바탕으로 국내사료공장은 물론 해외시장을 대상으로 '가공사료 생산의 효율적 운영' 세미나를 개최 하고 PELLET 컨설팅을 통해 제품의 효율적 운용 방안 및 가공 기술 향상 방향을 제시해왔다. 앞으로 본지를 통해 <펠렛 가공사료에 대한 새로운 고찰> 이라는 주제로 3회(격월간)에 걸쳐 연재할 예정이다.

• Proceedings of the Korea Information Processing Society Conference
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• 2004.11a
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• pp.677-680
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• 2004

시맨틱 웹의 개발에 대한 연구가 많이 진행됨에 따라 많은 도메인 온톨로지들이 구축되고 있다. 많은 개발자들이 연구 겉과를 바탕으로 온톨로지를 제작하고 있으나, 개발자들의 개인 관점의 차이, 명확한 온톨로지 구축 방법론의 부재, 온톨로지 구축 도구의 다양성 등의 문제에 따라 동일한 주제의 온톨로지 일지라도 내용에서 많은 차이점이 발생하고 있다. 이러한 온톨로지 언어적 수준, 온톨로지적 수준의 차이 때문에 각각 온톨로지의 상호운용성이 떨어진다. 또한 현재 온톨로지 구축 도구들의 기능들은 온톨로지 생성, 편집, 추론 등이 주를 이루고 있고, 동일한 주제에 대한 이질의 도메인 온톨로지를 병합하는 기능은 부족한 실정이다. 이에 본 논문에서는 각각의 개발자에 의해 개발된 동일한 도메인의 온톨로지들을 병합하여 더욱 완전한 온톨로지 구축을 위한 병합 방법을 연구하였다. 병합 방법은 대형의 온톨로지인 워드넷(WordNet)을 기반으로 하여, 이러한 이질의 도메인 온톨로지들을 공통된 주제를 중심으로 세부적인 단계를 거쳐 병합을 꾀하였다.

• The KIPS Transactions:PartD
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• v.14D no.2
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• pp.203-210
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• 2007

Ontology can be used as a formal and demonstrative knowledgebase that can express the thinking process of human. Software Development Process is a collection of ideal practices and procedural system that is performed by mature organization with high capability. Due to complexity of process, however, Software development Process often results in obstruction of introducing and improving simple process activity. While introducing and improving software development process, application of ontology to complex software development process is more approachable by showing deductive results of relationship between ISO/IEC 15504 and CMMI. In this paper, we demonstrate a methodology that utilizes the improved process database conceptually mapping between ISO/IEC 15504 and CMMI using ontology.

• Communications of Mathematical Education
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• v.31 no.1
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• pp.71-84
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• 2017

Taylor series has a complicated structure comprising of various concepts in college major mathematics. This subject is a strong tool which has usefulness and applications not only in calculus, analysis, and complex analysis but also in physics, engineering etc., and other study. However, students have difficulties in understanding mathematical structure of Taylor series convergence correctly. In this study, after classifying students' mathematical characteristic into three categories, we use structural image of Taylor series convergence which associated with mathematical structure and operation acted on that structure. Thus, we try to analyze the understanding of Taylor series convergence and present the results of this study.

• Journal of The Korean Association For Science Education
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• v.30 no.4
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• pp.498-518
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• 2010

This study analyzed the characteristics of organization scheme and the levels of core concepts in science textbooks used in Korea, Singapore, and Taiwan, which have shown superior achievement according to the TIMSS 2007. Science textbooks in Korea clearly divide the fields of Energy, Matter, Biology, and Earth, presenting the fields in nearly equal proportion in each grade. In the case of Singapore, science textbooks take an integrated content approach, combining concepts from several fields under a single theme. Science textbooks in Taiwan present a single content field in each unit. Also, because each grade engages in a specific field intensively, there are many cases in which concepts related to a single field are studied in a single grade. In view of levels of core concepts, Singapore or Taiwan showed higher achievement than Korea in themes of 'Cell and their Functions', 'Ecosystems', and 'Human Health' under the TIMSS 2007 biology field. Singapore introduces core concepts for these themes in lower grades compared to Korea and presents them repeatedly in several grades. In Taiwan, there are many cases in which these core concepts are taught only once during the course of $3^{rd}$ to $8^{th}$ grade, but the explanations are presented at a level that is suitable to TIMSS 2007 assessment objectives. Considering the results of this analysis, there is a need to reconsider the division of content fields and methods of presenting core concepts in the science textbooks of Korea.

• Journal of the Korean Society for information Management
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• v.27 no.1
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• pp.103-118
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• 2010

Recently, the valuation of patented technology has been greatly emphasized, and patent citation has been accepted as a very useful index of this technology. In this study, we performed correlation analyses between the patent citation counts and 17 explanatory variables of morphological, technological, and conceptual factors with a test dataset of U.S. patents in five subject fields. Seven variables having 5% or more standardized variances($r^2$) with patent citation counts were identified; number of pages, number of claims, reference-average-citation rate, patent increase/decrease rate, strength of bibliographic coupling, co-citation counts and document similarity. The result of the ANOVA test shows that the mean values of these variables vary among most subject fields.

• Proceedings of the Korean Information Science Society Conference
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• 2010.06c
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• pp.1-4
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• 2010

다양한 분야에 소속된 사람들이 사용하고 있는 개념들을 기존의 워드넷과 같은 지식베이스가 모두 포함하지 못한다는 한계점이 지적되었다. 본 연구에서는 이를 해결하기 위해 위키피디아 문서집합의 분석을 통하여 해결하고자 한다. 위키피디아는 현재 320만개 이상의 유/무형의 개체에 대한 상세한 설명을 포함하고 있으며, 현재도 해당 분야의 전문가들에 의해 지속적으로 제목(주제) 생성 및 내용 작성이 수행되고 있다. 이에, 위키피디아 문서는 지식베이스의 개념 확장을 위해 아주 유용한 자원이 될 수 있으며, 본 논문에서는 이러한 위키피디아 문서 제목의 개념화를 통해 기존의 지식베이스와 연결하는 의미적인 방법을 기술한다. 이를 이용한 간단한 실험을 통하여 본 연구가 우월한 가능성이 있음을 파악하였다.

• Korean Journal of Child Education & Care
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• v.17 no.4
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• pp.51-69
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• 2017

The purpose of this study is to derive educational meaning by analyzing 5-year-olds' activities process in soil-themed activities about 'soil' theme which was investigated by examination and teachers' reflective journals. For this, data of 20 children in 5-year-old class were collected and analyzed. As a result, firstly the value of children's pre-concept evaluation on soil theme was identified. Secondly, 'soil' theme was found to have a positive influence on children's feeling of wonder about nature and their ecological perspective taking ability. Thirdly, children could comprehensively investigate science education fields such as biology, ecology, and earth science in the process of investigating soil theme. Fourth, children came into interest in the process of understanding the relationship between soil and human through media. Lastly, children were found to compose scientific knowledge while investigating soil, through naturally using the method of inference.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2004.05b
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• pp.354-357
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• 2004

Data warehouse is subject-oriented, integrated, non-volatiled data, and it used for OLAP(On-Line Analytical Processing) the extraction of information from making decision processing. In the present, lots of study have been devoted to multidimensional modeling between OLAP operator and star schema. In this paper, the design of using the snowflake schema for object-oriented conceptual relation is more extended than using drill-across operator. The object-oriented relation schema which was not applicable has been improved through the design.