침입탐지에서 지지율 기반 클러스터링을 이용한 정상행위 패턴 생성

오상현,장중혁 대구대학교 정보통신연구소 2010 情報通信硏究 Vol.7 No.1

For effectively detecting the intrusion through computers, many algorithms have been actively proposed so far, and recently the works related to anomaly detection, which is extended from misuse detection techniques by reducing their drawbacks, have attracted considerable attention since the anomaly detection technique can identify unknown intrusion methods. In this paper, a new clustering algorithm is proposed in order to extract patterns from the normal user activities. For the purpose, the anomalous user behaviors should be analyzed in various angles, and be classified by many different types of measures. 컴퓨터를 통한 침입을 효과적으로 탐지하기 위해서 많은 기법들이 제안되어 왔으며, 근래에는 오용 탐지 기법을 개선하기 위해서 비정상행위 탐지 기법에 관련된 연구들이 활발히 진행중이다. 본 논문에서는 침입탐지에서 정상행위 패턴을 생성하기 위해 지지율에 기반한 새로운 클러스터링 알고리즘을 제시한다. 이를 위해서 정상적인 사용에 대한 행위를 다양한 각도에서 분석될 수 있도록 여러 판정요소로 분류하고 각 판정요소에 대해서 제시된 알고리즘을 이용하여 정상행위 패턴을 생성한다.

全體論的 環境設計 言語에 대한 試論

玄重英 서울대학교 환경대학원 부설 환경계획연구소 1995 터전 Vol.3 No.-

환경 선호에 준거한 도시설계 방법론에 관한 연구

현 중영 嶺南大學校 環境問題硏究所 1987 環境硏究 Vol.7 No.2

Ⅰ. 서론 (Introduction) Ⅱ. 도시환경의 질과 삶의 질 (Quality of urban Environment and Quality of Life) Ⅲ. 환경선호인자 (Factors of Environmental Preference) Ⅳ. 환경선호에 준거한 설계 기준 (Design Criteria with Reference to Environmental Preference) Ⅴ. 결론 (Conclusion) This study addresses urban design criteria with reference to environmental preference from the perspective of information processing model. Prevalent human environmental needs are making-sense and involvement, which are two important components of environmental preference. Attributes of preferred environment and factors of environmental preference are examined. Coherence, complexity, legibility and mystery are the factors of environmental preference from which some important urban design criteria are drawn.

아파트 주거 만족도의 선형 회귀 모형 : 대구광역시의 사례 연구 A Case Study of Taegu Metropolitan Area

현중영 영남대학교 지역발전연구소 1999 새마을지역개발연구 Vol.25 No.-

A prevailing settlement type in Korea is apartment housing, which is problematic in enhancing residents quality of life. It implies that betterment of apartment housing environment could heighten quality of life of a society as a whole. In this context, this research aims at identifying significant relationship between overall satisfaction with apartment interior and satisfaction with living room, entrance space, kitchen, veranda, and master bed room. A linear regression model is applied to the data gathered from a sample of respondents who live at apartments of Taegu metropolitan area. Results of the regression analysis indicate that living room, veranda and entrance space are important variables for enhancing residents overall satisfaction with apartment interior.

住居環境設計 方法論에 관한 硏究 : 行動分析的 接近方法을 중심으로

玄重英 嶺南大學校 環境問題硏究所 1983 環境硏究 Vol.3 No.1

This article aims at providing underlying rationale of design methodology for living envitronment with special reference to the potentials and limitations of behavioral analysis approach. It is meaningful in that it is widely accepted that design process should be externalized so that any errors in design process can eliminated in advance to the formulation of final design.

持續可能한 開發의 生態經濟學的 觀點

현중영 영남대학교 지역발전연구소 1997 새마을지역개발연구 Vol.21 No.-

This study aims at exploring the concept of sustainable development from the perspective of ecological economics. Modern environmental management faces a crisis due to unprecedented human development of environment, of which approach is inadequate in terms of proper functions and carrying capacity of the ecosystem. To reverse this trend revolutionary changes in human attitude and values toward natural environment are necessary. Sustainable development is a requisite to achieve this purpose. In this context this research identifies major paradigmatic differences between between new classic economiee and ecological economics and thereby suggesting a desirable approach to sustainable development.

지리정보체계에 준거한 환경계획의 컴퓨터 응용에 관한 연구

현중영 영남대학교 지역발전연구소 1995 새마을지역개발연구 Vol.17 No.-

This study aims a t exploring a relevant application model of geographic information systems( GIS) to effective and efficient environmental planning. Properties of GIS are examined in terms of hardware, software and database. A model of integration of remote sensing to GIS is suggested to provide a powerful tool to environmental planning. Issues related to such integration are discussed.

Helicobacter pylori 와 대장의 신생물과의 연관성

안중욱,류재현,김광호,박응범 대한대장항문학회 2001 Annals of Coloproctolgy Vol.17 No.3

地域計劃에 있어 生態的 資源의 評價 方法論

현중영 영남대학교 지역발전연구소 1998 새마을지역개발연구 Vol.23 No.-

This research aims at suggesting a proper methodology for evaluating ecological resources in the context of regional planning. Typically a region includes a vast amount of ecological resources which are the base of human well-being and sustainable development. Thus it is an imperative for a regional planning to employ an effective means to evaluate ecological resources. For this purpose two methods are suggested: One is contingent valuation method(CVM), which elicits subjects willingness to pay for a given ecological resource and the other is benefit-cost analysis(BCA) method, which is effective for valuating ecological resources. Further methodological issues concerning two methods are discussed.

NFI-C 결손 생쥐의 상아모세포 분화과정에서 DSPP와 BSP mRNA의 발현

정현구,이창섭,,이상호,이난영,김홍중,박주철 大韓小兒齒科學會 2005 大韓小兒齒科學會誌 Vol.32 No.4

NFI-C는 정상적으로 상아모세포, 골모세포에 존재하며,NFI-C가 결손된 경우 치근상아질을 형성하는 상아모세포의 분화에 이상이 있다고 알려져있다. 본 연구는 NFI-C(-/-) 생쥐에서 치관 및 치근의 상아질을 형성하는 상아모세포의 표현형을 상아모세포에 특이적으로 발현하는 DSPP와 골모세포에 특이적으로 반응하는 BSP 유전자를 이용한 in-situ hybridization을 통하여 연구하여 다음과 같은 결과를 얻었다. 1.NFI-C(-/-) 생쥐의 구치에서 치관 상아질은 정상적으로 형성되었으나, 치근 상아질은 형성되지 않았다. 2.NFI-C(-/-) 생쥐의 하악 절치의 순측 상아질은 비교적 많이 형성되었으나, 설측의 상아질은 형성되지 않았다. 3.NFI-C (-/-) 생쥐의 하악 절치의 상아모세포는 형태가 변화되었으며, 형성된 상아질 내에 세포가 함입되는 양상을 보였다. 4.NFI-C (-/-)생주의 구치에서 치관부위의 상아모세포에서는 DSPP가 강하게 발현되었으나. 치근부위의 상아모세포에서는 발현되지 않았다. 또한 NFI-C(-/-) 생쥐에서 절치의 순측 상아모세포에서는 DSPP가 약하게 발현되었다. 5. 정상 생쥐에서 절치의 상아모세포에서는 BSP가 발현되지 않았으나. NFI-C (-/-) 생쥐에서는 BSP가 강하게 발현되었다. 이상의 결과를 종합하여 볼 때 NFI-C가 결손된 경우 상아모세포가 골모세포로 분화되는 표현형의 변화를 보이는 것으로 사료된다. Nuclear factor I (NFI) exists in the odontoblast and osteoblast.NFI-C null mice demonstrated aberrant odontoblast differentiation, abnormal dentin formation, and molar lacking roots. The purpose of this study was to examine phenotype of the aberrant odontoblast in NFI-C null mice and to evaluate the expression of DSPP and BSP mRNAs in NFI-C null mice with in-situ hybridization. The results were as follows: 1.In the NFI-C (-/-) mice, the crown dentin of molar showed normally formation, but there was no root dentin. 2.In the NFI-C (-/-) mice, the labial dentin of mandibular incisors showed relatively a lot of dentin formation, but the lingual dentin showed defect. 3.In the NFI-C (-/-) mice, the odontoblast of mandibular incisors revealed abnormal shape and trapped in osteodentin-like mineralized tissue. 4.In the NFI-C (-/-) mice, the odontoblast in the crown dentin of molars showed strong expression of DSPP, the odontoblast in the root dentin of molars was not expression of DSPP. In the NFI-C (-/-) mice the odontoblast in the mandibular incisors showed weekly expression of DSPP. 5.In the wild mice, the odontoblasts of mandibular incisors were not expression of BSP, but in the NFI-C (-/-) mice the odontoblast of mandibular incisors showed strong expression of BSP. These results suggest that odontoblst in the NFI-C (-/-) mice changes the phenotype into osteoblast.