• The Journal of Korean Institute of Communications and Information Sciences
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• v.26 no.7A
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• pp.1200-1211
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• 2001

최근 각광을 받고 있는 데이터 마이닝 분야에서 데이터 마이닝 툴과 시스템의 등장으로 상호적이고 사용하기 쉬운 GUI 환경의 강력한 데이터 마이닝 질의 언어가 필요하게 되었다. 공간 데이터 마이닝은 공간 데이터에서 유용한 지식을 발견하기 위한 데이터 마이닝의 한 부문이며 공간 데이터는 점, 선, 사각형, 다각형 등으로 이루어져 있다. 공간 데이터 마이닝은 지리정보시스템(GIS)과 더불어 최근에 많은 관심과 연구가 활발히 진행되고 있다. 한편, 공간 데이터 마이닝을 위한 질의 언어와 그 언어에 기반한 공간 데이터 마이닝 질의 처리 및 최적화에 대한 연구가 중요하게 대두되고 있다. 공간 데이터에 대한 마이닝은 일반 관계형 데이터베이스에서의 질의 언어로는 표현이 불가능하다. 본 연구에서는 먼저 공간 데이터 마이닝 질의언어를 정의, 설계하고 질의 언어에 결과 표현 방식과 결과 데이터 집합의 저장을 명시하여 질의 표현의 효율을 높이는 방식을 제시하였다. 또한 공간 데이터 마이닝을 위한 질의 처리 및 최적화 과정을 질의에 기반한 공간 실체화 뷰의 생성과 유지, 인덱스 활용을 통한 질의 재사용, sampling 마이닝 질의 option 등의 방법론을 이용하여 제시하였다.

• Journal of Korean Society for Geospatial Information Science
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• v.18 no.4
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• pp.61-69
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• 2010

The collapse of a slope or cut embankment brings much damage to life and property. Accordingly, it is very important to analyze the spatial distribution by calculating the landslide susceptibility in the estimation of the risk of landslide occurrence. The heuristic, statistic, deterministic, and probabilistic methods have been introduced to make landslide susceptibility maps. In many cases, however, the reliability is low due to insufficient field data, and the qualitative experience and knowledge of experts could not be combined with the quantitative mechanical?analysis model in the existing methods. In this paper, new modeling method for a probabilistic landslide susceptibility analysis combined Bayesian Network with ontology model about experts' knowledge and spatial data was proposed. The ontology model, which was made using the reasoning engine, was automatically converted into the Bayesian Network structure. Through conditional probabilistic reasoning using the created Bayesian Network, landslide susceptibility with uncertainty was analyzed, and the results were described in maps, using GIS. The developed Bayesian Network was then applied to the test-site to verify its effect, and the result corresponded to the landslide traces boundary at 86.5% accuracy. We expect that general users will be able to make a landslide susceptibility analysis over a wide area without experts' help.

• Journal of the Korean association of regional geographers
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• v.8 no.3
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• pp.396-411
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• 2002

This paper aims to explore organisational change and learning involving spatial processes and outcomes. In particular, it focuses on the context specific nature of corporate learning and organisational change that can be found in the case of a large Korean firm facing radical economic change. Drawing on the case study of a large Korean firm, the Samsung Electronics Company, three main claims can be followed. First, territorial sources of learning influence the way in which the firm makes use of space/place. Second, corporate learning practices, however, are not based merely on specific localised sources or geographical proximity but on bringing together the local and the global sources by harnessing the properties of relational proximities. It reveals that firms are concerned less on specialising specific local knowledge than promoting organisational knowledge and competences by integrating a variety of knowledge distributed in and out of the boundaries of the firm. Finally, to learn and innovate in a continual basis, firms would attempt to combine codified knowledge with tacit knowledge.

• 한국HCI학회:학술대회논문집
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• 2007.02a
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• pp.537-540
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• 2007

본 논문의 목적은 인간과 시스템의 상호작용에 의한 컨텐츠 생성을 가능하게 함으로써 회의공간에서의 지식창조 프로세스를 지원하는데 있다. 회의에 있어서 발표자료는 기존의 조직이 보유 하고 있는 유형 지식인 컨텐츠 리소스들에 발표자의 지식이 더해진 산물로서 기존의 조직의 지식과 회의에서 창조되는 새로운 지식 사이의 가교역할을 담당한다. 본 논문에서는 R&D 회의를 대상으로 이러한 회의에서의 새로운 지식 창조의 기반이 되는 발표자료의 작성을 지원하는 적응형 컨텐츠 생성 시스템 (Adaptive Contents Generation System)을 제안하였다. 제안 시스템을 구현하기 위하여 먼저 기존의 조직이 가지고 있는 자원인 구성원 정보, 프로젝트 및 미팅 정보, 컨텐츠 리소스들을 체계적으로 관리하기 위한 Ontology를 구축하였다. 이렇게 구축된 Ontology를 기반으로 제안 시스템은 회의, 발표자, 참가자들의 상황과 생성되는 컨텐츠의 종류에 적합한 Fragment 들을 추출하고 이들을 하나의 컨텐츠로 구조화하여 사용자에게 제공한다. 또한 사용자가 시스템으로부터 생성된 컨텐츠를 수정하고 시스템은 이를 반영할 수 있는 환경을 제공함으로써 시스템이 가지고 있는 지식에 사용자 자신의 지식을 더하여 표현할 수 있도록 하였다. 본 논문은 시스템과 인간의 협업 작업에 의한 인간 기능의 확장뿐만 아니라 조직의 지식경영 및 효율적인 컨텐츠 관리를 지원하는 데에 그 의의를 둘 수 있다.

• Proceedings of the Korea Society of Mathematical Education Conference
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• 2006.10a
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• pp.79-90
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• 2006

새로운 것을 학습할 때 학생들은 자신이 어떤 지식 상태를 갖고 있는지에 따라 상당히 다른 이해의 정도를 나타낸다. 유의미한 이해를 이끌어 내기 위해서 교사들은 학생들의 사전 지식상태를 파악하고 그것에 근거하여 학습과제를 제시할 필요가 있으며, 어떤 단원을 학습한 후에 학생들의 지식상태를 파악해 보는 방법도 모색되어야 할 것이다. 본 연구는 충청북도 C도시 4개 초등학교 5학년 학생 285명에게 수학 5-가 6단원을 학습한 후 넓이 측정과 관련된 지식상태 검사를 실시하고 그 결과를 Doignon & Falmagne(1999)의 지식공간론을 활용하여 분석하였다. 학생들의 답안에서 평면도형의 넓이 측정과 관련된 지식의 상태를 파악하고 세 가지 범주-측정의 의미 파악, 공식 활용, 전략의 사용-에서 지식 상태의 위계도를 작성하였다. 첫 번째 범주인 측정의 의미 파악과 관련하여 학생들은 둘레나 넓이의 속성 파악에서 혼동을 보이거나 직관적으로 넓이를 비교해야 하는 과제에서도 계산을 시도하는 지식 상태가 반 이상인 것으로 드러났다. 두 번째 범주인 공식 활용과 관련해서는 학생들의 상당수가 부적합한 수치를 넣어 무조건 넓이 계산을 시도하고 있었다. 또한 세 번째 범주인 전략 사용에 관해서는 분할이나 등적변형 등의 전략을 알고 있는 학생 중에도 40% 가량은 문제를 표상하는데 어려움이 있어 해결하지 못하는 것으로 드러났다.

• Journal of the Economic Geographical Society of Korea
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• v.13 no.3
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• pp.335-353
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• 2010

Following the emergence of a knowledge-based economy, the triple helix model has been recognized as a new - regional and national - innovation model. This model seeks to understand the innovation process that is centered upon the university-industry-government interactions. The governance of the triple helix innovation system can be divided into three models according to the structure and depth of university-industry-government interactions. In the context of evolution, the triple helix can be established through the following three processes of development; i) internal transformation of each helix, ii) impacts of one helix on another helix, and iii) horizontal interactions among three helices. In theory, the triple helix model can be covered as part of the innovation system perspective. Compared to the innovation system perspective, the triple helix model tends to pay, however, more attention to the incompleteness of innovation system and the role of university in the process of knowledge creation. In view of regional innovation, the triple helix can be sustained when the triple helix spaces, including knowledge space, consensus space and innovation space, are created and the three triple helix spaces interact with one another. The existing literature on the triple helix model tends to make selectively use of only a single method between the qualitative method and the quantitative method, although both have shortcomings to reveal the dynamic characteristics of university-industry-government relations. Therefore, research on the triple helix is required to reconcile with two research methods, which are distinct but complementary in nature.

• Journal of the Korean Society for information Management
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• v.31 no.2
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• pp.173-188
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• 2014

This research aims to analyze empirically the effects of learners' knowledge sourcing behavior on the knowledge utilization outcomes in a social learning community. This kind of virtual community is of service to users who not only produce but also share a variety of valuable knowledge which is created based on relationships and interactions among learners. In order to conduct the study, a group of learners was made of 55 undergraduate students who were majoring in social science. The data was collected by online survey at the end of the term and multiple regression methods have been used for empirical analysis. The study shows that dyadic knowledge sourcing and published knowledge sourcing both have significant effects on knowledge reuse and knowledge adaptation. In addition, knowledge adaptation and knowledge innovation were affected by group knowledge sourcing. The research results help to select appropriate knowledge sourcing behavior depending on one's purpose of knowledge use.

• Journal of the Korea Convergence Society
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• v.7 no.2
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• pp.19-24
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• 2016

On a huge space of information called the Internet, users can use a smart mobile web to get information on various intellectual fields and can access to various Medias such as personal blogs and social networking sites (SNS). This is why a vast amount of information on the web has been effectively managed and researched nowadays through a technology named Semantic Web. However, it still needs for an improvement for studies on searching for intellectual information, though it is enhanced to integrate variously spread information and search for intellectual information user-oriented. Thus, this study aims to research on searching information and knowledge spread around a knowledge-filled information space, which can improve credibility according to user-oriented logic.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.18 no.6
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• pp.1381-1387
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• 2014

According to continuous development of information technology, it is needed to make convergence of other disciplines such as humanities and area studies. Among convergence fields related to information technology and humanities/area studies, electronic cultural atlas represents various digitalized cultural information on electronic map using spatial data such as points, lines, and polygons through time, spatial, and subject axises. Knowledge map is to represent special academic information based on electronic cultural atlas. In details, knowledge map can provide integrated information sharing and spread because academic information associated with electronic cultural atlas and data related to per subjects, regions, and period become organically connected. Therefore, knowledge map may be utilized to promote scholastic research and diffuse research result. In this paper, we describe basic concept and composition of knowledge map and propose design method to construct knowledge map.

• Journal of Gifted/Talented Education
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• v.15 no.1
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• pp.37-48
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• 2005

Comparing to the other subject, the relationship among physics contents is strong from the perspective of knowledge order as grades go up. That is, The things already that students learned, are learning and will learn are closed related from grade to grade. We expect students to be proactive and creative in studying physics, which is the goal of 21th century, analyzing their knowledge structure based on the knowledge order through assessment. Especially, using computer system, we provide students with substantial feedback for the assessment as well as objective validity is increased along with speedy and exact process in a bid to help students' mathematical understanding grow. This paper seeks to analyze the data from assessment applying knowledge spaces of the scientifical gifted in selective examination and to applicate on development of evaluation method.