• 제목/요약/키워드: geographic knowledge

검색결과 146건 처리시간 0.03초

The Establishment Plan of Knowledge-Based Community through the 3-D National Underground Information DB Design and Utilization Review (3차원 국토지하정보 DB설계 및 활용성 검토를 통한 지식기반 커뮤니티 구축 방안)

  • Song, Seok-Jin;Jang, Yong-Gu;Kang, In-Joon
    • Journal of Korean Society for Geospatial Information Science
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    • 제19권1호
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    • pp.63-70
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    • 2011
  • The national spatial information systems project which is promoted by our country has been extended from existing 2-D geographic information to 3-D spatial information as the basic geo-spatial Information. Most of the construction of the ground geo-spatial information are completed or underway, on the other hand, the construction of the subsurface geo-spatial information has difficulty caused by the lack of the drilling data characterizing the subsurface. In terms of the construction of the geo-spatial information of the subsurface, the subsurface information is constructed and managed by the domestic institutions, but the subsurface information which is possessed by the institutions was not shared mutually so it is managed inefficiently. This study presented the 3-D national underground information DB design by dividing with the ground DB item which configures the state of the ground and the soil DB item which configures the state of the soil in order to increase the efficiency of the construction of the subsurface spatial information. The implementation & utilization of the national underground information application technology was reviewed by applying the constructed DB to the actual model area, and the national underground information knowledge-based community establishment plan was presented.

Analysis of Microsatellite DNA Polymorphisms in Five China Native Cattle Breeds and Application to Population Genetics Studies

  • Jin, Hai-Guo;Zhao, Yu-Min;Zhou, Guo-li
    • Asian-Australasian Journal of Animal Sciences
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    • 제18권12호
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    • pp.1696-1700
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    • 2005
  • Five China native cattle breeds have been characterized by using 10 microsatellite DNA markers. The studied populations can be divided into five groups: Luxi cattle, Nanyang cattle, Jinnan cattle, Qinchuan cattle and Yanbian cattle. Allele frequencies were calculated and used for the characterization of the breeds and the study of their genetic relationships. Heterozygosity, polymorphism information content, the effective number of alleles was calculated. Nei' standard genetic distance (1978) was calculated and used for a neighbor-joining tree construction. NJ tree showed that Luxi cattle, Nanyang cattle, Jinnan cattle and Qinchuan cattle are closely related, whereas Yanbian cattle are clearly distinct from other four populations. The genetic relationship of five breeds corresponds to their history and geographic origins. This work analyzes the recent origin of these populations and contributes to the knowledge and genetic characterization of China native breeds.

A Design of Semantics Filter for GIS

  • Nerome, Moeko;Yabiku, Tomohide;Onaga, Yoshitaka;Kang, Dongshik;Miyagi, Hayao;Onaga, Kenji
    • Proceedings of the IEEK Conference
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    • 대한전자공학회 2002년도 ITC-CSCC -1
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    • pp.587-590
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    • 2002
  • We propose a semantics filter aimed at filtering unnecessary data for a user. In the Geographic Information Systems (GIS), transfer of spatial data for each user is one of the important problems. We design a system that filters spatial data by using user's information adaptively. Our system derives the degree of geographical knowledge and the priority of buildings by using fuzzy reasoning. Furthermore, this system computes the priority of roads by deriving the contiguity relation between a building and a road. This paper describes a method for filtering of spatial data.

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An Efficient Algorithm for Mining Frequent Sequences In Spatiotemporal Data

  • Vhan Vu Thi Hong;Chi Cheong-Hee;Ryu Keun-Ho
    • 한국공간정보시스템학회:학술대회논문집
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    • 한국공간정보시스템학회 2005년도 추계학술대회
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    • pp.61-66
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    • 2005
  • Spatiotemporal data mining represents the confluence of several fields including spatiotemporal databases, machine loaming, statistics, geographic visualization, and information theory. Exploration of spatial data mining and temporal data mining has received much attention independently in knowledge discovery in databases and data mining research community. In this paper, we introduce an algorithm Max_MOP for discovering moving sequences in mobile environment. Max_MOP mines only maximal frequent moving patterns. We exploit the characteristic of the problem domain, which is the spatiotemporal proximity between activities, to partition the spatiotemporal space. The task of finding moving sequences is to consider all temporally ordered combination of associations, which requires an intensive computation. However, exploiting the spatiotemporal proximity characteristic makes this task more cornputationally feasible. Our proposed technique is applicable to location-based services such as traffic service, tourist service, and location-aware advertising service.

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Diagnostic approach to the fever of unknown origin in children - Emphasis on the infectious diseases - (소아에서 원인불명열의 진단적 접근 - 감염성 질환을 위주로 하여-)

  • Choi, Eun Hwa
    • Clinical and Experimental Pediatrics
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    • 제50권2호
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    • pp.127-131
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    • 2007
  • Fever of unknown origin (FUO) has been a convenient term used to classify patients who warrant a particular systemic approach to diagnostic evaluation and management. The greatest clinical concern in evaluating FUO is identifying patients whose fever has a serious or life-threatening cause when a delay in diagnosis could jeopardize successful intervention. Thorough history and complete physical examination are critical to uncover the etiologic diagnosis. Most cases of FUO in children are caused by atypical presentations of common diseases rather than by typical manifestations of rare disorders. Selection of diagnostic tests and speed of investigation should be guided by a knowledge of the disease severity, patient age, epidemiologic and geographic information, and any positive findings from a detailed history and physical examination. The three most common causes of FUO in children are infectious diseases, connective tissue diseases, and malignancy. In general, the prognosis of FUO in children is better than that of adults. Although the outcome is dependent on the primary disease process, fever abates spontaneously in most cases in whom the cause of fever remains unclear.

Conceptualization-oriented Spatial Decision Support System for III-structured Problems (비단순문제 해결을 위한 GIS 향상방안)

  • 김은형
    • Spatial Information Research
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    • 제1권1호
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    • pp.63-72
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    • 1993
  • The purpose of this research is to determine how the present use of Geographic Information Systems (GISs) can be improved for ill-structured problems in planning and design, While information-oriented GIS technology has proven useful for routine and administrative problems, it is not yet capable of providing information and knowledge interactively within a problem solving process that can be characterized as "ill-structured." This suggests that GIS technology must be embedded wi thin a large problem solving process for ill-structured problems. The hypothesis of this research is that implementation of conceptualization-oriented Spatial Decision Support Systems(SDSSs) will significantly improve the use of GIS technology for ill-structured problems.

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Gyeonggi21 Search 2.0 : Regional Knowledge Retrieval System using Numerical Map and the Web (경기21서치 2.0 : 수치지도와 웹 공간을 융합한 지역지식 검색시스템)

  • Yun, Seoug-Kwan;Lee, Ryong;Kwon, Yong-Jin
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 한국GIS학회 2008년도 공동춘계학술대회
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    • pp.45-50
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    • 2008
  • 웹의 폭발적인 성장으로 다양한 형태의 지역관련 정보가 웹 공간에 포함되어 있으며, 기존의 지리정보시스템에서 제공하지 못한 실생활의 다양한 지역 정보를 얻을 수 있게 되었다. 하지만, 사용자가 지역 정보를 얻기 위해서는 현재의 키워드 기반의 웹 검색 엔진을 사용하여 얻은 다수의 검색 결과와 이를 맵과 관련시켜 정리해야 하는 불편함이 있다. 이러한 문제를 해결하기 위하여, 본 논문에서는 특정지역에 대한 정확한 지리정보를 갖고 있는 수치지도와 방대한 지역정보를 갖고 있는 웹 공간을 융합하여 특정지역과 관련된 지역정보를 효율적으로 제공할 수 있는 시스템인 "경기21서치 2.0"을 제안한다. 본 시스템에서는 웹을 통해 분석한 지역의 특징 및 지역 간의 의미적 관련성을 키워드를 통해 지역지식 네비게이터로 구성하고, 이를 수치지도에 기반한 맵 인터페이스와 연동하여 보다 효율적인 지역 웹 정보검색을 지원한다.

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Development of Emergency Response Plan System Using Quantitative Risk Assessment in Chemical Plants (화학공장에서의 정량적 위험성 평가를 이용한 비상 대응 계획 시스템 개발)

  • 임차순;서재민;엄성인;백종배;고재욱
    • Journal of the Korean Society of Safety
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    • 제16권2호
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    • pp.69-74
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    • 2001
  • In this study, we analyzed the accident scenarios of chemical plants through the analysis of lots of chemical accidents and using experts knowledge, and looked into the method of prevention and response. Moreover, we developed a systemic and actual Emergency Response Plan Software(ERPS) that could prevent, prepare and respond totally for the chemical industry facilities using the data from the accident effect estimation from the local society and the geographic information of a chemical plant. The ERPS consists of the information for the plant and process, the consequence analysis and the ERPTA(Emergency Response Plan Tree Analysis). In conclusion, the program developed in this study could help effectively all the chemical industry facilities to prevent and respond to possible accidents.

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The Review the Mathematical model: Aspect of Geographic Agglomeration and Innovation (집적지의 성장에 대한 수리모형의 재 조명: Tomas Breuner와 Metcalf 논문 중심으로)

  • Han, Junghee
    • Journal of Industrial Convergence
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    • 제14권1호
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    • pp.39-45
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    • 2016
  • This paper deals with the consideration of mathematical models with regards to growth of cluster and firms by reviewing the Metcalf and Breuner's articles. prior studies have been argued the phenomenon of local industrial clusters and districts. Several concepts have been adopted to support the success of and changes to these clusters and firm growth. Through the review of two papers, evolution of both cluster and firm growth may be achieved in terms of utilizations of the different local aspects and mechanisms. This paper supports the theoretical back bone with regards to the regional cluster policy implementing in Korea for the purpose of regional developments. In particular, a mathematical model that, on a more abstract level, captures the fundamental dynamic structure of all the observed mechanisms. On the basis of this model, the emergence and evolution of local clusters can be described. Also this model has given that the knowledge sharing between firms has an important role to firms and cluster' growth.

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A Tool for Mapping and Measuring Sustainable Capacity Development: Concepts, Methods and Contexts (균형적 능력개발의 매핑 및 측정을 위한 도구 - 개념, 방법론 및 배경 -)

  • Liou, Jae-Ik
    • Journal of the Korean Association of Geographic Information Studies
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    • 제9권4호
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    • pp.165-175
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    • 2006
  • The discussion about capacity development (CD) has been spotlighted as significant drivers for sustainable development in recent years. Multi-dimensional natures of capacities would lead to various definitions of CD in international institutes and organizations. CD is perceived as an endogeneous process to improve actionable learning and knowledge, but most of core capacities still remain abstract notion and might be unreliable in sustainable development (SD). The paper first explicates international perspectives of CD in association with SD. An agent-based model is especially proposed to portray more details of CD. It illuminates the role of assets (or capitals, resources) in agents to impact on ingredients of CDs that are drivers or enablers for improvement of SD. A definition of sustainable capacity development is firstly articulated in international society and its conceptual framework is also creatively designed to assist concerned international organizations. The paper concludes by proposing practical spatial asset mapping linking to agent-based organizational capacity as a tool for measuring sustainable capacity development.

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