• Proceedings of the KSRS Conference
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• 2006.03a
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• pp.45-48
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• 2006

지리정보 분야에서 다양한 지리정보를 공유 및 교환, 전송하기 위해서는 데이터 스트리밍 관점에서의 일관성과 무결성을 유지 할 수 있는 지리정보 모델이 필요하다. OpenGIS Consortium, Inc.(OGC)에서 제안한 국내외 지리정보 엔코딩 표준 방식인 Geography Markup Language(GML)은 상호운영을 전제로 이러한 목적에 부합되는 모델이다. 본 연구에서는 한국정보통신기술협회(TTA)에서 공표한 우리나라 표준 교통데이터 모델인 TTA 교통모델을 기반으로 하여 이 데이터 모델을 수용하는 GML 응용 시스템을 설계 및 구현하였다. 또한 OGC 그리드 커버리지의 관점에서 영상 정보의 활용이 증가함에 따라 영상 정보의 엔코딩 과정을 부가하여 시스템의 확장 가능성을 검토하고자 하였다.

• Journal of Korea Spatial Information System Society
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• v.7 no.1 s.13
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• pp.39-52
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• 2005

GML (Geography Markup Language) has become the widely adopted standard for transport and storage of geographic information. So, various researches such as modeling, storage, query, and etc have been studied to provide the interoperability of geographic information in web environments. Especially, there are increased needs to store semi-structured data such as GML documents efficiently. Therefore, in this paper, we design and implement a GML repository to store GML documents on the basis of GML schema using spatial database system. GML Schema is converted into directed GML schema graph and the schema mapping technique from directed schema graph to spatial schema is presented. Also, we define the conversion rules on spatial schema to preserve the constraints of GML schema. GML repository using spatial database system is useful to provide the interoperability of geographic information and to store and manage enormous GML documents.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2018.05a
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• pp.106-107
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• 2018

WEBGL 등 실시간 3차원 웹 서비스를 S-10X 데이터 서비스 구현에 활용함으로써 보다 폭넓은 항해정보의 공유방안을 생각하고 실제 플랫폼에 데이터를 시각화함으로써 S-10X 데이터에 활용서비스 모델을 구축하고자 한다. 이를 위하여 CESUIM 같은 오픈소스 프로젝트를 이용함으로써 데이터 시각화 및 구축 이용에 도움을 주고자 한다.

• The KIPS Transactions:PartD
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• v.11D no.6
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• pp.1239-1246
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• 2004

The integration and union of regional digital map and vehicle location data in e-Logistics which means virtual service architecture based on the Internet among the logistics companies is indispensable clause in order to satisfy the visibility characteristics. Most conventional vehicle monitoring and controlling systems were constructed with individual and mutual exclusive architecture so that there are required lots of cost for sharing and integrating the information among them. In this paper, we design and implement an component-based open system which represent moving object location information as well as digital map using the GML(Geography Markup Language - international standard encoding based on XML). We also test proposed system on the delivery vehicle scenario in e-Logistics environment, and validate its superior in terms of extensibility and interoperability.

• Journal of the Korean Association of Geographic Information Studies
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• v.7 no.2
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• pp.29-36
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• 2004

The purpose of this study is to analyze DMB(digital multimedia broadcasting) technologies of transmitting GIS-based traffic information for developing DMB systems compared with FM DARC(FM data radio channel). R&D and standardizations for transmitting GIS-based traffic information have been rapidly changed, as radical developments in ITS(intelligent transportation systems), telemaics, and communication methods such as ubiquitous and convergences of broadcasting and communications. Each communication method employs different GIS format, protocol, and standardizations, i.e., GML(geography markup language) and TPEG(transport protocol experts group). This paper presents technical methods and trends of transmitting traffic information using broadcasting along with FM DARC, in general, and DMB, in particular.

• Journal of Korea Spatial Information System Society
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• v.5 no.1 s.9
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• pp.27-38
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• 2003

Recently, because of the extensive use of geographic information in the various fields, the requirement for the easy circulation and utilization of the various geographic information among the individuals, organizations, societies and countries is raised. In order to support the interoperability of the heterogeneous geographic information in the various fields, OGC(Open GIS Consortium) proposed the GML(Geography Markup Language) specification that defines the XML encoding rule about the heterogeneous geographic information. In addition, ISO/TC 211 adopted the GML specification to make it as the international standard. Therefore, in this paper we first analyzed the GML 3.0 specification in detail that can support the interoperability of the heterogeneous geographic information. And then we suggested and applied the mapping rule that define the encoding method to improve the encoding process easily and efficiently. Finally we designed and implemented the GML 3.0 encoding system using the mapping rule to encode the geographic information that was constructed in spatial databases into the GML 3.0 document. Especially, we used ZEUS as a spatial database system to test our encoding system in this paper.

• Journal of the Korean Association of Geographic Information Studies
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• v.17 no.2
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• pp.95-106
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• 2014

In this study, the applicability of a standard vector model was evaluated using RIMGIS vector data and a portal based river-geospatial information web service system was developed using XML and JSON based data linkage between the server and the client. The RIMGIS vector data including points, lines, and polygons were converted to the Geospatial Data Model(GDM) developed in this study and were validated by layers. After the conversion, it was identified that the attribute data of a shape file remained without loss. The GeoServer GDB(GeoDataBase) that manages a DB in the portal was developed as a management module. The XML-based Geography Markup Language(GML) standards of OGC was used for accessing to and managing vector layers and encoding spatial data. The separation of data content and expression in the GML allowed the different expressions of the same data, convenient data revision and update, and enhancing the expandability. In the future, it is necessary to improve the access, exchange, and storage of river-geospatial information through the user's customized services and Internet accessibility.

• Proceedings of the KSRS Conference
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• 2005.10a
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• pp.663-666
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• 2005

The Geography Markup Language (GML) is an XML encoding for the transport and storage of geographic information, including both the geometry and properties of geographic features. This paper uses the GML to provide extendibility and interoperability of spatial data in moving objects management system. Since the purpose of the system is to provide locations of the moving objects in the web and mobile environments, we used the GML both for presenting map data and trajectories of the moving objects. The proposed system is composed of Location Data Interface, Moving Objects Engine, and Web/Mobile Presentation Interface. We utilized the concept of Web Map Server, that is web mapping technology of OGC (Open Geospatial Consortium), to integrate map data and the location information of the moving objects. In the process of the integration, we used the standard data model and interfaces while defining new application schema. Since our suggested system uses open spatial data encoding and interfaces, both extendibility and interoperability are guaranteed.

• Proceedings of the Korea Information Processing Society Conference
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• 2005.11a
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• pp.1157-1160
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• 2005

일반적으로 지리정보 서비스의 목적은 사용자에게 어떻게 하면 좀 더 쉽고 정확하며 빠르게 정보를 전달하는가에 있다. 지리정보 서비스가 발달하고 정보통신이 발달함에 따라 많은 사용자 요구가 증가하고 있는데 그 중 전자 지도 서비스에 대한 요구가 증가하고 있는 추세이다. 기존의 지리정보 시스템(GIS)은 많은 웹과 연동하여 웹 사이트에서 지도 정보 및 주변위치정보(POI : Point Of Interest) 서비스를 제공하고 있다. 또한 지리정보 데이터는 그 특수성에 의해 정보의 현재성, 다양성, 위치정확도, 등급분류, 기타 주요 속성정보로 구성 요소를 정의 하여 제공하고 있다. 이에 OGC(Open GIS Consortium) 에서 제안한 지리 데이터 공유 및 저장의 표준인 GML(Geography Markup Language) 명세에 기반하여 POI 정보를 가시화하는 시스템인 GVP(GML Viewer POI) 설계한다. 특히 데이터 전송 트래픽을 최소화하기 위한 특정한 핵심 POI 위치 정보를 제공한다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.38 no.5
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• pp.467-476
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• 2020

Indoor space has been one of the focal points for geospatial research as various factors such as increasing demands for application and demand for adaptive response in emergencies have arisen. IndoorGML (Indoor Geography Markup Language) has provided a standardized method of representing the topological aspect of micro-scale environments, with its extensive specifications and flexible applicability. However, as more real-world problems and needs demand attention, suggestions to improve this standard, such as representing IndoorPOI (Indoor Points of Interest), have arisen. Hence, existing algorithms and functionalities that we use on perceiving these indoor spaces must also adapt to accommodate said improvements. In this study, we explore how to define spatial neighborhoods in indoor spaces represented by an integrated IndoorGML and IndoorPOI data. We revisit existing approaches to combine the aforementioned datasets and refine previous approaches to perform neighborhood spatial queries in 3D. We implement the proposed algorithm in three use cases using sample datasets representing a real-world structure to demonstrate its effectiveness for performing indoor spatial analysis.