• KSII Transactions on Internet and Information Systems (TIIS)
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• 제17권7호
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• pp.1858-1872
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• 2023

With the advance of radar technologies, the availability of synthetic aperture radar (SAR) images increases. To improve application of SAR images, a management system for SAR images is proposed in this paper. The system provides trainable land cover classification module and display of SAR images on the map. Users of the system can create their own classifier with their data, and obtain the classified results of newly captured SAR images by applying the classifier to the images. The classifier is based on convolutional neural network structure. Since there are differences among SAR images depending on capturing method and devices, a fixed classifier cannot cover all types of SAR land cover classification problems. Thus, it is adopted to create each user's classifier. In our experiments, it is shown that the module works well with two different SAR datasets. With this system, SAR data and land cover classification results are managed and easily displayed.

• 한국환경복원기술학회지
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• 제23권5호
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• pp.99-112
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• 2020

This study aims to propose biotope field datasheet and biotope type classification based on habitat-based by analyzing the German biotope system. The German system began in 1976 and has established a habitat-based national biotope classification system. On the other hand, Korea institutionalized in 2018 to build a classification system based on land use and land cover, which is a classification system that does not fully reflect ecosystem in Korea. Germany operates 44 biotope classification systems and 40 biotope field datasheet. Korea uses a single biotope field datasheet regardless of the biotope type. This classification system may not reflect the characteristics of Korea's biotope ecological habitat. The biotope classification system of Korea was proposed by dividing it into five categories: mountain ecology, freshwater ecology, land ecology, coastal ecology, and development area to reflect ecosystem habitat. The biotope type was designed as a system of large-classification-middle-small classification and subdivided into medium-classification and subdivided in each biotope system. The major classifications were classified into 44 categories according to the mountainous biotope(11), freshwater biotope(8), terrestrial biotope (12), coastal biotope(6), and development biotope(7). Unlike Germany, Korea's biotope field datasheet was proposed in five ways according to the classification of major ecosystem types. The results of this study are expected to contribute to the policy suggestion and the utilization of ecosystem conservation because the biotope classification system is classified to reflect the characteristics of ecosystem habitats.

• International Journal of Knowledge Content Development & Technology
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• 제7권2호
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• pp.85-105
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• 2017

Given the variety of approaches to mapping the universe of knowledge that have been presented and discussed in the literature, the purpose of this paper is to systematize their main principles and their applications in the major general modern library classification schemes. We conducted an analysis of the literature on classification and the main classification systems, namely Dewey/Universal Decimal Classification, Cutter's Expansive Classification, Subject Classification of J.D. Brown, Colon Classification, Library of Congress Classification, Bibliographic Classification, Rider's International Classification, Bibliothecal Bibliographic Klassification (BBK), and Broad System of Ordering (BSO). We conclude that the arrangement of the main classes can be done following four principles that are not mutually exclusive: ideological principle, social purpose principle, scientific order, and division by discipline. The paper provides examples and analysis of each system. We also conclude that as knowledge is ever-changing, classifications also change and present a different structure of knowledge depending upon the society and time of their design.

• Journal of Information Science Theory and Practice
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• 제3권4호
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• pp.62-77
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• 2015

This paper describes qualities of a library classification system that are commonly discussed in the LIS tradition and literature, and explains such a system’s three main functions, namely knowledge mapping, information retrieval, and shelf arrangement. In this vein, the paper states the functional requirements of bibliographic classifications, which broadly are subject collocation and facilitation of browsing the collection. It explains with details the components of a library classification system and their functions. The major components are schedules, notations, and index. It also states their distinguished features, such as generalia class, form divisions, book numbers, and devices for number synthesis which are not required in a knowledge classification. It illustrates with examples from the WebDewey good examples of added features of an online library classification system. It emphasizes that institutional backup and a revision machinery are essential for a classification to survive and remain relevant in the print and e-environment.

• 대한안전경영과학회지
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• 제24권4호
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• pp.61-70
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• 2022

In spite of lab safety act for over 10 years, over 100 safety accidents in the laboratory have been constantly occurring. The ideal safety management system is to prevent accidents by differential classifying and managing laboratory regulatory materials according to the risk level. In order to approach this system, in-depth interviews with safety managers were first conducted to identify the current status of safety management in domestic university laboratories. And then through comparative analysis of safety management systems in domestic and foreign laboratories, a new regulatory substance classification standard based on the analysis of the hazards and the classification of risk grades, and a safety management system are proposed. From this study, it will contribute to the creation of a safe laboratory environment by differential classification and management laboratory regulatory materials based on the risk level.

• 방사선산업학회지
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• 제8권3호
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• pp.155-159
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• 2014

RI-Biomics is a new concept that combines radioisotopes (RI) and Biomics. For efficient collection of information, establishment of database for technical information system and its application to the system, there is an increasing need for constructing the standard classification system of technical information by its systematical classification. In this paper, we have summarized the development process of the standard classification system of technical information in the field of RI-Biomics and its application to the system. Constructing the draft version for the standard classification system of technical information was based on that standard classification one in national science and technology in Korea. The final classification system was then derived through the reconstruction and the feedback process based on the consultation from the 7 experts. These results were applied to the database of technical information system after transforming as standard code. Thus, the standard classification system were composed of 5 large classifications and 20 small classifications, and those classification are expected to establish the foundation of information system by achieving the circular structure of collection-analysis-application of information.

• 한국수자원학회논문집
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• 제48권11호
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• pp.945-955
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• 2015

The technology of the SWG (Smart Water Grid) as one of most important national projects results in significant assignment that is closely associated with systematic management and effective operation. The individual component technics are required to establish directory and classification for the purpose of effectively managing their information related to research and development (R&D). The national science technology (S&T) standard classification tree which results in the representative example has been established with an intention to manage R&D information, human resource, and budget. It has been also revised every five years and then used in the various fields related to the evaluation, administration, and prediction of the national R&D projects. In addition, the standard classification system for R&D projects has been widely used in the UNESCO (United Nations Educational, Scientific and Cultural Organization) and EU (European Union) since the Frascati Manual was established in the Organization for Economic Cooperation and Development (OECD). Therefore, it is necessary for SWG techniques to develop the standard S&T classification tree for research management and evaluation. For this, it is essential to draw the core techniques for the SWG, which are incorporated with IT (Information Technology), NT (Nano Technology), and BT (Biology Technology).

• 한국비블리아학회지
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• 제32권4호
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• pp.67-88
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• 2021

국가과학기술표준분류는 과학기술 관련 정보, 인력, 연구개발사업 등을 효율적으로 관리하기 위한 목적으로 제정 및 운영되고 있으며 개정주기는 5년이다. 2022년은 차기 개정 절차의 첫 해로 현재의 대, 중, 소분류체계 중 소분류체계를 기술키워드화 하는 것이 주 목적이다. 이는 현재의 경직된 구조로 인해 발생하는 유관 분류체계와의 연계 어려움과 최신 용어에 대한 미반영 문제를 해결하기 위한 것이다. 본 연구에서는 이 문제 해결을 위해 기존의 분류체계 관리를 용어관리체계로 변화시켜 용어의 품질과 활용성을 높일 수 있는 방법을 제안하였다. 이를 위해 표준용어관리체계인 SKOS와 ISO/IEC 11179 표준을 기본 모델로 설정하였다. 또 해외 과학기술용어집에서 활용하고 있는 용어관리 메타데이터 표준을 조사하여 현 국가과학기술표준분류체계와 비교한 후 용어관리관점에서 즉시 활용할 수 있는 메타데이터들을 도출하였다. 그 결과 현 관리체계에서 즉시 변형하여 적용할 수 있는 11개 표준 요소를 발굴 제안하였으며, 차후 분류체계 개정 작업을 거친 후 적용할 수 있는 5개 요소를 발굴하여 제안하였다.

• 한국군사과학기술학회지
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• 제3권1호
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• pp.76-84
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• 2000

As first step of any acoustic defence system, a attacking target warning system needs to be extremely reliable. This means the system must ensure a high probability of target classification together with a very low false alarm rate. In this paper, a algorithms for underwater target automatic classification is available for use in the passive sonar will be presented. In first, we will describe the precise automatic extraction of frequency lines for the detection of acoustic signatures. Also, a neural network and fuzzy based algorithms for target classification will be described. Thus the performances of these algorithms are very good with a high probability of classification.

• 한국산학기술학회논문지
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• 제22권4호
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• pp.457-465
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• 2021

본 연구에서는 국방표준분류체계의 현실태 및 문제점을 분석하고 국내외 표준분류체계 사례 분석을 통해 규격관리 업무를 효율적으로 수행하기 위한 방안을 제안하였다. 국방기술자료의 군수품 품질 문제를 지속적으로 해소하기 위해 민간의 우수 기술을 적시에 반영하고 완성도 높은 국방규격의 관리를 위해 민간의 표준체계를 벤치마킹해야 한다. 먼저, 현실태 분석을 위해 국내 민간 KS 및 국외 ICS코드, 미국 국방표준시스템을 통해 나토 분류체계를 분석하였다. 우리군의 경우는 방위사업청에서 운영 중인 국방표준종합시스템을 통해 국방규격 분류체계의 현실태를 파악하였다. 각 경우를 우리 군의 국방규격 분류체계에 산업표준과 연계해 국방표준분류체계에 적용하였다. 국방부 무기체계/전력지원체계의 분류는 전순기 군수품에 대해 8대 무기체계와 6대 전력지원체계로 분류한 우리 군에 가장 적합한 분류체계이다. 대분류로 국방부 무기체계/전력지원체계의 분류를 채택하였고, 중분류와 소분류로는 나토 분류체계를 채택하였다. 구체적으로 대분류 12개 분야, 중분류 66개 분야, 소분류 352개 분야로 각각 분류하였다. 본 연구에서는 국방표준관리체계 확립으로 민간의 기술반영을 통한 신규 국방규격 분류체계 개선방안으로 활용될 수 있을 것으로 판단된다.