• 제목/요약/키워드: Preserving environment

검색결과 267건 처리시간 0.029초

On relationship among h value, membership function, and spread in fuzzy linear regression using shape-preserving operations

  • Hong, Dug-Hun
    • 한국지능시스템학회:학술대회논문집
    • /
    • 한국지능시스템학회 2008년도 춘계학술대회 학술발표회 논문집
    • /
    • pp.306-310
    • /
    • 2008
  • Fuzzy regression, a nonparametric method, can be quite useful in estimating the relationships among variables where the available data are very limited and imprecise. It can also serve as a sound methodology that can be applied to a variety of management and engineering problems where variables are interacting in an uncertain, qualitative, and fuzzy way. A close examination of the fuzzy regression algorithm reveals that the resulting possibility distribution of fuzzy parameters, which makes this technique attractive in a fuzzy environment, is dependent upon an h parameter value. The h value, which is between 0 and 1, is referred to as the degree of fit of the estimated fuzzy linear model to the given data, and is subjectively selected by a decision maker (DM) as an input to the model. The selection of a proper value of h is important in fuzzy regression, because it determines the range of the posibility ditributions of the fuzzy parameters. In this paper, we discuss the interdependent relationship among the h value, membership function shape, and the spreads of fuzzy parameters in fuzzy linear regression with fuzzy input-output using shape-preserving operations.

  • PDF

《황제내경(黄帝内经)》 유관시간이론급시간양생적고찰(有关时间理论及时间养生的考察) (Investigation of Chronomedicine and Health Preserving in Huang Di Nei Jing(黄帝内经 ))

  • 국보조;김효철
    • 대한한의학원전학회지
    • /
    • 제28권2호
    • /
    • pp.61-66
    • /
    • 2015
  • Objectives : Through the analyze of formative factor of time sense and the vital movement temporal rhythm in Huang Di Nei Jing(黃帝內經). Methods : We find out the principle and methods of Chronomedicine and Health Preserving in Huang Di Nei Jing(黃帝內經), and this finding will direct the life nurturing for later generations. We find that time sense had been established in Huang Di Nei Jing(黃帝內經), which had yin-yang and five elements characteristic. Results : There have temporal rhythm of functions of zang-fu viscera, meridian and collateral, qi and blood. Based on the theory of correspondence between human body and natural environment, established principle of health maintenance about based on yin and yang, temporal rhythm of visceral qi. Conclusions : Established health maintenance methods based on time such as adjusting-spirit according to time, regular daily life, dietary regimen according to time, needling and moxibustion according to time. These methods will guide syndrome differentiation and therapeutic method and Medication which based on suitable time.

Relationship Among h Value, Membership Function, and Spread in Fuzzy Linear Regression using Shape-preserving Operations

  • Hong, Dug-Hun
    • International Journal of Fuzzy Logic and Intelligent Systems
    • /
    • 제8권4호
    • /
    • pp.306-311
    • /
    • 2008
  • Fuzzy regression, a nonparametric method, can be quite useful in estimating the relationships among variables where the available data are very limited and imprecise. It can also serve as a sound methodology that can be applied to a variety of management and engineering problems where variables are interacting in an uncertain, qualitative, and fuzzy way. A close examination of the fuzzy regression algorithm reveals that the resulting possibility distribution of fuzzy parameters, which makes this technique attractive in a fuzzy environment, is dependent upon an h parameter value. The h value, which is between 0 and 1, is referred to as the degree of fit of the estimated fuzzy linear model to the given data, and is subjectively selected by a decision maker (DM) as an input to the model. The selection of a proper value of h is important in fuzzy regression, because it determines the range of the posibility ditributions of the fuzzy parameters. In this paper, we discuss the interdependent relationship among the h value, membership function shape, and the spreads of fuzzy parameters in fuzzy linear regression with fuzzy input-output using shape-preserving operations.

경관정체성 향상을 위한 전주팔경의 해석에 관한 연구 (A Study on the Reinterpretation of ChonJu Palkyong for Improvement of Landscape Identity)

  • 신상섭;노재현
    • 한국조경학회지
    • /
    • 제26권4호
    • /
    • pp.25-35
    • /
    • 1999
  • This thesis is to newly understand the value and the meaning of Chonju Palkyong(全州八景) by the specific gravity in making a counter-proposal in other to improve the landscape identity of modern city and at the same time. I intended to group the grafting device for the preservation and regeneration of modern history cultural environment through the interpretation of landscape construction. The meaning system of Chonju Palkyong showed the symbolic system which a landscape construction, four directions and two places has and exhibited the landscape shape possessing a luxuriant local feature peculiar to Chonju, preserving visual bound language of a classical Palkyong. Especially, it implies the use of the substantial landscape experienced factor, the expressions about natural phenomena and the matter which has melted human living circumstances. The landscape construction and it's form show the system which forms the different time field, a far landscape and a mid distance landscape and a near landscape, etc., under the visual, psychological, scenic influenced area, preserving the feature of the similar and typical type of Sosang Palkyoung(瀟湘八景) which intended to seek the local reappearance of the famous site experienced type and natural matter which famous place and local conduct were combined. The object space of Chonju Palkyong area representing the nature of historical landscape cultural assets, pushed by the greater part of the development based theory, shows injured aspects, but needs to play a part to seek such a up-to-date successive plan as the reconstruction of the destroyed historical landscape area which motivated Palkyong, the establishment of useful area, the embodiment of the cultural identity of Palkyong area and the becoming of the educational cultural life space. The analysis of the landscape construction of Chonju Palkyong and the grouping of the modern successive plan which I considered in this thesis, will be able to become a fundamental data to carry out the preservation of historical landscape and the landscape plan in the city.

  • PDF

크리스토퍼 알렉산더의 패턴언어 생성규칙에 관한 연구 (A Study on the Rule for Creation of the Pattern Language of Christopher Alexander)

  • 정성욱;김문덕
    • 한국실내디자인학회논문집
    • /
    • 제26권1호
    • /
    • pp.75-82
    • /
    • 2017
  • This study reviews the process of creating the patterns through the Christopher Alexander's books to discover the fundamental rules for creation of the pattern language. The essential ideas of 11 rules describing the characteristics of the pattern language are organized by keyword depending on the characteristics of each rule. Then, this study analyzes which keyword was applied importantly and how it had been developed chronologically in the Alexander's books. As a result, 5 keywords - reflection of cultural difference, reflection of human desires, solving the repeated problem, function suitable for principal purpose, and network structure - are applied to his early books in which the pattern language was theoretically developed, the pattern of traditional society was discovered and the network structure was developed. Another 5 keywords - user participation method, new problem solving, structure preserving transformation, post-mechanization method, and central invariant structure - are applied to the books in his mid-term after completion of the pattern theory which discover new pattern for contemporary society and apply the pattern language to time and space. In his later books which organize the theory of pattern language and suggest the direction for using the pattern language, 5 keywords - wholeness, post-mechanization method, user participation method, new problem solving, and structure preserving transformation - are applied. Users may use the pattern language more precisely if he/she considers the keywords of the early period in searching the patterns of existing environment, the keywords of the intermediate period in searching the patterns of new environment or in regard to time and space, and the keywords of the later period in considering direction of the application of the pattern language.

UN 우주활동 장기 지속가능성(LTS) 가이드라인 채택의 의미 (The Significance of a U.N. Guideline for Long-Term Sustainability of Outer Space Activities)

  • 신상우
    • 항공우주시스템공학회지
    • /
    • 제13권5호
    • /
    • pp.49-56
    • /
    • 2019
  • 최근 우주활동의 국제규범 형성에 있어서 가장 주목받은 것은 '우주활동 장기지속가능성(LTS) 가이드라인'이다. 2010년 UN COPUOS(유엔 외기권평화적이용위원회)에서 논의를 시작하여 2019년 6월 마침내 21개 지침이 채택되었다. 채택된 지침은 우주환경의 무기한 보전을 목적으로 우주잔해물을 포함한 궤도상 우주물체의 상황 관측능력을 증진 및 지원하기 위한 국제협력, 우주기상에 관한 유효한 데이터 및 예보 공유, 국제법에 합치한 각국의 우주정책 공표, 국내 제도를 개선해 정부가 우주활동을 적절히 감독하는 것 등을 포함하고 있다. 일부 지침은 우주잔해물 제거가 우주무기 실험과 분리가 곤란한 경우가 많아, 유효한 구별기준을 찾아내지 못하여 각국이 합의에 도달하지 못하였다. 향후 (초)소형위성군과 랑데부및 근접운용 계획 등이 가시화되고 있어 우주환경 보전에 대한 국가간 입장은 더욱 첨예해질 전망이다.

운동하는 몸에 대한 생태윤리학적 접근(1): 퇴계의 경을 중심으로 (Eco-ethical Approach to Sporting body: Focusing on Toegye's Gyeong)

  • 이정란
    • 한국체육학회지인문사회과학편
    • /
    • 제55권3호
    • /
    • pp.15-25
    • /
    • 2016
  • 이 연구는 퇴계의 경(敬)을 중심으로 운동하는 몸에 대한 생태윤리학적 접근을 시도하였다. 인간과 자연의 갈등원인은 인간의 욕망에서 비롯된 잘못된 자연관을 들 수 있다. 퇴계는 욕망의 문제를 경을 통해 극복할 수 있다고 보았다. 퇴계 경사상의 생태윤리학적 접근 가능성은 다음과 같다. 첫째, 퇴계의 경은 자연 속에서 완성된 것이기에 가능하다. 둘째, 퇴계의 경은 자연에 대한 인간의 책임(배려)을 강조한다. 셋째, 경은 도덕 실천능력과 연관되기 때문이다. 한편, 퇴계는 '몸을 잘 보존하는 것'이 자기보존인 동시에 자연의 순리를 따르는 천리의 의미로 이해하였다. 이러한 관점에서 운동하는 몸은 신체건강과 마음건강의 의미가 존재하며 동시에 인간과 자연을 하나의 관계망으로 이해하여 자연 질서를 따르는 생태적 가치의 측면도 존재한다. 운동하는 몸을 통한 경의 획득은 '경신(敬身)'과 '활경(活敬)'의 실천을 제안한다. 자연과 함께하는 신체운동을 할 때 몸을 공경하는 '경신'의 단계에 머무르는 것뿐만 아니라 생태환경을 보전(活敬)하면서 자연을 통해 요산요수(樂山樂水)의 덕을 함양하는 단계로 나아가는 것이다.

A Network Packet Analysis Method to Discover Malicious Activities

  • Kwon, Taewoong;Myung, Joonwoo;Lee, Jun;Kim, Kyu-il;Song, Jungsuk
    • Journal of Information Science Theory and Practice
    • /
    • 제10권spc호
    • /
    • pp.143-153
    • /
    • 2022
  • With the development of networks and the increase in the number of network devices, the number of cyber attacks targeting them is also increasing. Since these cyber-attacks aim to steal important information and destroy systems, it is necessary to minimize social and economic damage through early detection and rapid response. Many studies using machine learning (ML) and artificial intelligence (AI) have been conducted, among which payload learning is one of the most intuitive and effective methods to detect malicious behavior. In this study, we propose a preprocessing method to maximize the performance of the model when learning the payload in term units. The proposed method constructs a high-quality learning data set by eliminating unnecessary noise (stopwords) and preserving important features in consideration of the machine language and natural language characteristics of the packet payload. Our method consists of three steps: Preserving significant special characters, Generating a stopword list, and Class label refinement. By processing packets of various and complex structures based on these three processes, it is possible to make high-quality training data that can be helpful to build high-performance ML/AI models for security monitoring. We prove the effectiveness of the proposed method by comparing the performance of the AI model to which the proposed method is applied and not. Forthermore, by evaluating the performance of the AI model applied proposed method in the real-world Security Operating Center (SOC) environment with live network traffic, we demonstrate the applicability of the our method to the real environment.

지구환경보전과 가정에서의 생태적인 생활양식 (A Study on the Ecological Life Style in the Home and Preservation of the Earth Environment)

  • 최남숙
    • 한국환경교육학회지:환경교육
    • /
    • 제7권1호
    • /
    • pp.88-105
    • /
    • 1994
  • Since the Rio Convention of 1992, the international community has displayed a heightened consciousness concerning the Earth environment and domestic attention on the said subject has also rapidly increased. An Ecological life style signifies the conscious efforts to preserve the environment interpreted into quotidien action. For the realization of conservation in action, an understanding of the specific details of environmental preservation must precede. The environmental conservation action in the homes was systematically approached in this study as an input-process-output and feedback cycle. The input phage is the consumer oriented buying stage, the while the process is the actual use of the products and the output stage consists of categorizing and producing wales, the feodbach being recycling of resources. At each stage the attitude which is devoted to environmental consciousness plays a big ride in the actual preservation of the Earth environment. in order to effectively conserve the environment, efforts displayed by the business sector is as important as implementation of environmentally conscious action at home. During the process of producing and distributing products, and attitude and action in preservation efforts are crncial and the responsibility ageat. For the business sector to effectively initiate environmental preservation into action, institutional support from the government and cooperation from the homes is of essence. Consolidated efforts to atter the superfrony life style into ecological life styles and ralues is essential to solve the most important socio-economic issue of the 90's of preserving the earth.

  • PDF

소비자의 저탄소 인증 농산물 구매행태 및 인식에 관한 연구 (A Study on Consumers' Purchasing Behavior and Perception of the Low-carbon Certificated Agricultural Products)

  • 이춘수;양훈민
    • 한국유기농업학회지
    • /
    • 제29권3호
    • /
    • pp.333-358
    • /
    • 2021
  • This study investigates consumers' purchasing behavior and perception of the low-carbon certificated agricultural product. To this end, we surveyed 1,000 consumers and the main findings are as follows. First, Even after six years of national certification, it is important to promote the low-carbon certification system due to insufficient awareness and purchase experience. Second, the certificated area is small at around 5% of the area of environment-friendly agricultural products and GAP certification, and certification is concentrated on fruit trees. Third, an appropriate level of high-priced strategy can be useful considering the cost of low-carbon certification, image management of low-carbon certificated agricultural products, and quality is the most important factor for consumers to consider when purchasing fresh agricultural products. Fourth, consumers recognized that the contribution of low carbon certification in reducing greenhouse gas emissions and preserving the environment was higher than that of environment-friendly agricultural products or GAP certification. Considering that, promotional activities linked to environment-friendly agricultural products and GAP certification may be effective when promoting low-carbon certification. Finally, the Ministry of Agriculture, Food and Rural Affairs is implementing a carbon point system linked to Green Card to revitalize low carbon certification, but 25.7% of consumers are aware of it, and 8.4% have little experience in issuing it.