• Journal of Digital Convergence
• /
• v.10 no.9
• /
• pp.383-390
• /
• 2012

In this paper, we suggest an information retrieval visualization tool using the knowledge representation method. Information retrieval visualization tool suggested in this paper is designed to automatically extract retrieval intention using user's search history data and visualize extracted retrieval intention in the knowledge representation method structure. A psychological knowledge representation methodology was adopted for schema for retrieval intention representation and its effectiveness has been proved through the behavioral experiments. Result of experiment revealed that information retrieval visualization tool has been improved approximately 39% in user satisfaction compared to existing retrieval method, suggesting a measure to solve re-retrieval problem in the process of information retrieval.

• Journal of The Korean Association For Science Education
• /
• v.25 no.7
• /
• pp.746-753
• /
• 2005

In order to be efficient teachers should understand the current level of leaners through diagnostic evaluation. However, it is arduous to administer a diagnostic examination in every class because of various limitations. This study examined, the major issues arising from the development of a new science diagnostic evaluation system by incorporating the using knowledge state analysis method. The proposed evaluation system was based on the knowledge state analysis method. Knowledge state analysis is a method where by a distinguished collection of knowledge uses the theory of knowledge space. The theory of knowledge space is very advantageous when analyzing knowledge in strong hierarchies like mathematics and science. It helps teaching plan through methodically analyzing a hierarchy viewpoint for students' knowledge structure. The theory can also enhance objective validity as well as support a considerable amount of data fast by using the computer. In addition, student understanding is improved through individualistic feedback. In this study, an evaluation instrument was developed that measured student learning outcome, which is unattainable from the existing method. The instrument was administered to pre-service physics teachers, and the results of student evaluation was analyzed using the theory of knowledge space. Following this, a revised diagnostic evaluation system for facilitating student individualized learning was constructed.

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

• The Journal of Society for e-Business Studies
• /
• v.16 no.4
• /
• pp.301-319
• /
• 2011

Blog plays an important role as new type of knowledge base distinguishing from traditional web resource. While information resources in their existing website dealt with a wide range of topics, information resources of the blog are concentrated in specific units of information depending on the user's interests and have the criteria of classification forresources published by tagging. In this research, we build a tag hierarchy utilizing title keywords and tags of the blog, and propose apost clustering methodology applying the tag hierarchy. We then generate the tag hierarchy reflected the relationship between tags and develop the tag clustering methodology according to tag similarity. In this paper, we analyze the possibility of applying the proposed methodology with real-world examples and evaluate its performances through developed prototype system.

• Journal of Science and Technology Studies
• /
• v.2 no.1 s.3
• /
• pp.157-189
• /
• 2002

Science and technology policy a lot of implicit usjustified assumptions. These assumption without being reflected may cause various social problems. In this paper, lit is shown that philosophy of science could make contribution to resolving these problems. In epistemological viewpoints, theory of science and technology policy has been analyzed. I argue that social kinds, social entities appeared in social science should be interpreted realisticaly. Realizing this realistic interpretation of social kinds, as one field of social sciences, theory of science and technology policy can deal with the causal relation among social entities and the causal influence of science and technology policy more objectively- scientific knowledge has two components. One belongs to coded knowledge and the other belong to tacit knowledge which cannot be coded. I analyze the content and characters of tacit knowledge appeling to Michael Polany. One of the important function of science and technology policy is to make tacit knowledge more fruitful. I argue that philosophy of science fit well this function. Finally I claim that philosophy of science can help science and technology policy to reduce the ethical problems caused by science and technology.

• Journal of the military operations research society of Korea
• /
• v.36 no.1
• /
• pp.39-49
• /
• 2010

This paper tries to identify emerging defense technology using S&T Text Mining. As a national agenda, there has been much effort to build S&T information systems including NTIS and DTiMS that enable researchers, policy makers, or field users to analyze technological changes and promote the best policy practices for efficient workflow, knowledge sharing, strategy development, or institutional competitiveness. In this paper, the S&T Text Mining application to unmanned combat technology using INSPEC DB is empirically illustrated and shows that it is a feasible approach to identify emerging defense technology as well as the structure of knowledge network of the future technology candidates.

• Proceedings of the Safety Management and Science Conference
• /
• 2001.05a
• /
• pp.281-286
• /
• 2001

EPM은 전사원을 이익확보 프로세스에 참여하게 하는 데 있다. 이익성과에 대한 기여도에 따라 전사원이 몸으로 체감하는 경영관리를 실시해야 한다. 이익을 확보하고 계속적인 성장을 하여 초일류 기업으로 발전하게 하는 데 EPM은 구체적인 방법론을 제시한다. 기업이 계속적으로 발전하기 위해서는 지식경영시스템을 구축하여 지능형 기업, 진화하는 기업구조 만들어야 한다. 전사적 이익관리(EPM)는 RTCP에 의해 이익 중심의 기업경영으로 기업성장의 틀을 제공한다.

• Journal of Scientific & Technological Knowledge Infrastructure
• /
• s.8
• /
• pp.12-21
• /
• 2002

초기 컴퓨터는 주로 원자핵물리와 관련된 계산에 사용되었으나 곧바로 컴퓨터의 도움을 받아 물리 문제를 해결하고자 하는 방법은 물리 전 분야에서 광범위하게 적용되었다. 물질의 가장 작은 요소를 찾고자하는 소립자물리학에서부터, 물질의 성질을 규명하는 응집물질물리, 나아가서 거대 우주의 구조를 밝히고자 하는 우주론에 이르기까지 컴퓨터의 사용이 확장되고 있다. 이러한 확장은 전산물리^[2]라는 물리의 큰 분야를 형성하였고 현재 미국물리학회의 14개 분과 중 하나로 자리 매김하고 있다.^[3]

• Journal of the Korean Society for Library and Information Science
• /
• v.41 no.4
• /
• pp.229-250
• /
• 2007

This paper suggested a way to solve the problems by using domain experts who are already in the significant level of knowledge in those fields. For the purpose of achieving our goal, a very simple and efficient approach to construct the knowledge-base which can play an important role in providing researchers with essential information in need was proposed. In addition, the Adaptive R&D Information Service Portal with a new schema structure and a construction method of representing expert's knowledge efficiently was developed. With the simplicity and expandability of the proposed system it can be a good model for a similar system to be developed.

• Proceedings of the Korea Information Processing Society Conference
• /
• 2007.05a
• /
• pp.423-426
• /
• 2007

온톨로지는 의미적인 지식을 표현하고, 공유하기 위해서 여러 분야에서 널리 사용되고 있으며, 특히 시멘틱 웹의 상호운용성을 해결할 수 있는 중요한 요소로 자리 잡고 있다. 현재 온톨로지의 구축을 지원하는 다양한 도구들과 방법론들이 제시되고 있지만, 실제 구축되어진 온톨로지가 실용적이고, 도메인의 정보를 정확하게 반영했는지 검증할 수 있는 도구나 방법은 매우 미비하다. 따라서 본 연구에서는 OWL언어로 구축되어진 온톨로지의 소스로부터 온톨로지의 주요 요소들을 추출하여 형식개념분석(Formal Concept Analysis)모델로 변환하고 분석함으로써, 온톨로지에 포함된 구조적인 문제점을 파악할 수 있는 방법과 도구에 대해서 설명한다. 본 연구에서 제시한 온톨로지 분석도구를 사용하면, 구축되어진 온톨로지에 포함된 구조적 오류 및 온톨로지의 구조를 수월하게 파악할 수 있고, 온톨로지 구축작업 및 수정보완에 있어서 더 좋은 개념계층구조를 갖는 온톨로지를 제안할 수 있다.