• Proceedings of the Korean Information Science Society Conference
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• 2004.10b
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• pp.76-78
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• 2004

최근 원격 탐사 시스템 등이 발전함에 따라 축적된 공간 데이터의 양이 증가했고 이를 공간 데이터 웨어하우스 분야에서 의사 결정에 활용하는 방안이 중요한 이슈가 되고 있다. 기존의 활용 방법은 주어진 영역을 기준으로 공간 범위-집계를 검색하는 형태였지만, 최근 특정 성향 분석을 위해 분포 질의를 요청하고 그 결과 지역에 대한 공간 분석을 통한 의사결정의 필요성이 대두되었다. 하지만 기존의 처리 방법으로 비공간 질의를 처리하기 위해서는 모든 데이터를 검색해야 하므로 분포 질의를 처리하기 위한 비용이 증가하게 된다. 본 논문에서는 분포 지역 질의 처리를 위한 확장된 큐브 트리 기법을 제안한다. 제안하는 기법은 분석하고자 하는 사실 테이블의 비공간 속성을 큐브 트리의 키로 사용하고, 이 속성과 관련된 공간 데이터의 포인터 집합을 관리한다. 본 논문의 제안 기법을 공간 데이터 웨어하우스에 적용함으로써 비공간 속성 질의를 통해 공간 객체를 결과로 요청하는 형태의 질의를 지원할 수 있게 되며 사실 컬럼을 계층화시킴으로서 사용자에게 좀 더 다각적인 분석을 지원할 수 있다.

• Spatial Information Research
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• v.17 no.3
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• pp.251-259
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• 2009

As a result of the current trend towards promoting conservation of the ecosystem, there have been various studies conducted to determine ways to establish an ecological network. The development of analytical methods and an environmental database of GIS has made the creation of this network more efficient. This study focuses on the development of an urban spatial decision support system based on 'Landscape Ecology Theory'. The spatial decision support system suggested in this study consists of four stages. First, landscape patch for the core areas, which are major structures of the ecological network, was determined using the GIS overlay method. Second, a forest habitat was investigated to determine connectivity assessment. Using the gravity model, connectivity assessment at the habitat forest was conducted to select the needed connecting area. Third, the most suitable corridor routes for the eco-network were presented using the least-cost path analysis. Finally, a brief investigation was conducted to determine the conflict areas between the study result and landuse. The results of this study can be applied to urban green network planning. Moreover, the method developed in this study can be utilized to control urban sprawl, promote biodiversity.

• Proceedings of the Korea Water Resources Association Conference
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• 2018.05a
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• pp.393-393
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• 2018

본 연구에서는 자연재해 발생 시 신속하고 효율적인 재난 대응 의사결정을 지원하기 위하여 재난 재해 정보와 시설물 정보, 공간정보 등이 융합된 통합 인벤토리를 구축하고자 한다. 재난대응 의사결정 지원을 위하여 시설물의 중요도, 위험도, 피해액 산정에 필요한 원천 데이터를 공공데이터포털(data.go.kr)에서 제공하는 공공데이터를 활용하였다. 공공데이터포털의 데이터셋은 파일데이터와 오픈 API, 표준데이터와 국가중점데이터를 제공하고 있다. 파일데이터는 22,306건, 오픈 API는 2,505건, 표준데이터는 58건의 정보를 제공하고 있으며, 국민, 기업 등 수요 중심으로 개방의 효과성과 시급성 등이 높은 41개 분야의 국가중점데이터를 제공하고 있다. 또한 공공데이터를 활용하여 개발된 국내외 다양한 사례와 가공데이터를 공공데이터 활용사례를 통하여 공유하고 있다. 인벤토리 구축을 위하여 국가중점데이터와 데이터카테고리의 국토관리, 재난안전, 산업고용, 공공행정 등 다양한 공공데이터를 검토하여, SOC 시설물과 건축물의 정보를 수집하여 시설물의 중요도와 위험도, 피해액 평가 등 필요 목적에 맞게 최적화 하여 구축하였다. 또한 구축된 다양한 정보와 시설물 평가 모듈간의 원활한 데이터 수급을 위한 연계 모듈과 관리 모듈을 개발하여 구축된 데이터 정보를 표준화하여 유지 관리 할 수 있도록 인벤토리를 구축하였다. 이러한 재난대응 의사결정 지원 통합 인벤토리는 재난대응 의사결정을 신속하고도 효율적으로 가능하게 함으로써 방재업무 지원 및 대국민 서비스를 가능하게 할 것으로 판단된다.

• Journal of Korean Society for Geospatial Information Science
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• v.13 no.2 s.32
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• pp.3-12
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• 2005

Change detections are widely used for its usefulness. During the process two factors are important; one is which method is to be adopted and the other is what should be the appropriate critical value. Until far, these factors are mostly decided by users based upon their knowledge from past experiences. In this paper we propose a set of methodologies that allow users maintaining optimal decisions on which change detection method is the desirable one, what might be the suitable critical value, and what does the introducing SDSSs(Spatial Decision Support Systems) to change detections means.

• Proceedings of the Korea Information Processing Society Conference
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• 2020.11a
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• pp.634-636
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• 2020

대형 및 복합 화재에 효과적으로 대응하기 위해서 화재 현장에 대한 다양한 컨텍스트를 고려하여 표준작전절차 및 매뉴얼을 기반으로 최적의 대응 방안을 도출해야 한다. 이러한 의사결정을 긴급한 상황에서 신속하고 정확하게 수행하기 위하여 화재 상황 및 관련 대응규칙을 자동으로 분석하고 대응절차를 선제적으로 제시하는 방법이 필요하다. 이를 위해 이 논문에서는 공간정보 및 화재안전정보를 이용하여 규칙 기반으로 화재 대응 의사결정을 지원하는 방법을 제안한다. 제안하는 방법에서는 소방대상물의 실내외 공간정보 및 다양한 화재안전정보를 기반으로 화재 상황의 가변성을 모델링하고 이를 참조하여 화재 대응규칙 명세를 개발한다. 그리고 의사결정 시 주어진 상황에 맞게 가변성을 선택하고 룰 엔진을 통해 대응규칙을 실행하여 대응절차를 도출한다. 제안하는 방법을 재난현장 표준작전절차의 대상물별 표준작전절차를 대상으로 적용하여 실현 가능성을 검증하였다.

• Spatial Information Research
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• v.9 no.1
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• pp.91-105
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• 2001

This study aimed to develop an effective decision support system for the locational decision of urban parks through integrating decision analysis techniques with spatial analysis functions of GIS, and by doing so, to improve the efficiency and quality of the decision-making process. The system provides an efficient management process by integrating analysis, alternative generation and evaluation procedures into a coherent system environment. Evaluation criteria used in the system includes Equity, Efficiency, Service population, Land cost, Park ratio buildings, and Connectivity of greenery. The system also improves the efficiency and rationality of the decision-making process by incorporating various decision analysis techniques such as MAUT, AHP, and ELECTRE into a decision-making process. The analysis and decision support methods used in the system can be utilized for the locational decisions of other urban public facilities, and the system can also be expanded to a comprehensive park management system by incorporating general management functions for urban parks.

• Journal of Korean Society for Geospatial Information Science
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• v.3 no.2 s.6
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• pp.101-113
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• 1995

In pipeline planning, the systematic and reasonal management of topographical and spatial data are needed in order to omprove the availibilities for data analysis and the effective combinations of spatial informations. According to that fact, DBMS (Database Management System) and DSS(Decision making Support System) have to be developed for the planning of water supply system Also, the economic selection for harmonious delivery of water to target area, since the alternatives of pre-designed pipeline are influenced by hydraulic stability and geographic characteristics. In this study, GIS technique for water supply planning and management which stores graphic features and attributes as digital data sets is considered and engineering application programs are integrated for effective planning of water supply system. Decision making support system based on analyzing technical, Social and economical aspects is developed for the extension of water supply facilities and pipeline configurations. Especially, Hydraulic, land-use and economic influences are considered as important factors for the purpose of developing the system. Hydraulic analysis program(SAPID) for pipeline flow which is already developed in Water Resources Research Institute and economic analysis program(ECOVEL) are integrated with GIS for resonable decision making. Every possible aspects in pipeline planning for water supply is reviewed and the applicabilities of developed system into the field are evaluated.

• Journal of the Korea Society of Computer and Information
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• v.3 no.4
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• pp.126-131
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• 1998

Spatial data warehouse, whose importance is being increased, is composed of huge amounts of historical spatial data for organizational decision making and it also allows users to obtain useful geospatial information through analyzing and summmarizing spatial data. In this paper, we survey effective spatial multidimensional model which is based on virtual scenario for spatial data warehouse modelling. Therefore, we describe spatial multidimensional analytical query which provide multiple analytical functions according tom user's requests.

• Journal of KIISE:Databases
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• v.33 no.5
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• pp.463-475
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• 2006

In applications such as a traffic management system, analysis using a spatial hierarchy of a spatial data warehouse and a simple aggregation is required. Over the past few years, several studies have been made on solution using a spatial index. Many studies have focused on using extended R-tree. But, because it just provides either the current aggregation or the total aggregation, decision support of traffic policy required historical analysis can not be provided. This paper proposes hybrid index based on extended aR-tree for the spatio-temporal aggregation. The proposed method supports a spatial hierarchy and the current aggregation by the R-tree. The sorted hash table using the time structure of the extended aR-tree provides a temporal hierarchy and a historical aggregation. Therefore, the proposed method supports an efficient decision support with spatio-temporal analysis and is Possible currently traffic analysis and determination of a traffic policy with historical analysis.

• Journal of Korean Society for Geospatial Information Science
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• v.5 no.2 s.10
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• pp.179-192
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• 1997

The purpose of this paper is to implement a GIS and expert system based integrated computing environment for urban facility management, especially with an emphasis on transportation facilities. GIS has been utilized for constructing and managing the database of various transportation facilities, while expert system for executing human expert's role of making priorities, budgeting, and other functions associated with facility management Focusing on roadway sign system, the integrated system proposes new concept of managing sign facilities which leads to the birth of effective decision support system that may be used in local government like Seoul. The proposed concept and system, if supplemented with more functions required by local governments, can be a low cost solution for such facility management tasks. Son discussion and future research agenda have also been addressed.