• Journal of KIISE:Computing Practices and Letters
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• v.15 no.10
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• pp.740-751
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• 2009

Much research on semantic geographic information systems that incorporating the Semantic Web and geographic information has been actively studied. However, the existing geographic information systems have a system dependency problem that users can input and retrieve non-spatial information only in a specific system. It also causes difficulty in providing rich services. Therefore, this paper proposes an implementation model for population of Geo-ontology from non-structured Web resources. The proposed model can populate instances for Web ontology independently of systems, and thus it enables a richer Web service development. Finally, this paper shows the prototype that populates instances including a Geo-ontology building example for a University selected as an application domain.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.345-348
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• 2006

웹 정보의 의미적 검색을 위한 시맨틱 웹의 연구가 활발히 진행되고 있다. 시맨틱 웹에서 핵심이 되는 것은 온톨로지이다. 2004년 2월 W3C는 온톨로지 구축을 위해 RDF(S)와 OWL을 온톨로지 구축 언어의 표준으로 제정하고 총 13개의 기술문서를 공표하여, 온톨로지 언어의 정의와 구축 사례 및 활용의 내용을 제공하고 있다. 이로 인해, 많은 온톨로지들이 여러 목적에 의해 구축되고 있으며, 그 활용도는 점차 증가하고 있다. 하지만 지리정보의 검색을 위한 온톨로지는 구축이 어려우며 이에 대한 연구도 미흡하다. 이에 본 논문에서는 지역과 지역의 위치 정보, 지역 내의 건물 및 도로에 대한 위치정보를 온톨로지로 구축할 수 있는 방법과 이를 지리정보 검색에 활용할 수 있는 방안을 연구하였다. 그 결과, 우리는 위치에 대한 온톨로지 구축을 위한 3가지 어휘를 설계하였고, 이를 이용하여 효율적이고 의미적인 지리정보 검색이 가능하다는 것을 확인할 수 있었다.

• 한국IT서비스학회:학술대회논문집
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• 2009.05a
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• pp.397-400
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• 2009

현재 웹은 단순히 정보를 수집하여 제공하던 웹 1.0을 지나 정보의 사용자가 곧 생산자가 되어 개방된 웹 환경을 기반으로 사용자 스스로 콘텐츠를 제작, 재창조, 공유하는 인터넷 서비스 모델인 웹 2.0으로 발전하였다. 이러한 웹의 발전 과정에서 시맨틱 웹이 등장하게 되었고 시맨틱 웹이 지리 정보와 접목되어 시맨틱 지리 정보 시스템이 등장하게 되었다. 기존 지리 정보 시스템에서는 사용자들이 국한된 정보만을 제공받아 왔지만 웹이 발전하고 수많은 콘텐츠가 생성되면서 웹의 데이터를 지리 정보 시스템과 연결시켜서 사용자에게 풍부한 정보를 제공 할 수 있는 시스템이 연구, 개발되고 있다. 하지만 기존 연구들은 사용자가 시스템에 접속하여 비공간 정보를 입력해야 하는 특정 시스템에 종속적이라는 단점을 가지고 있어 시맨틱 웹에서 지향하는 풍부한 서비스 제공에 어려움을 격고 있다. 따라서 이 논문에서는 웹 자원을 정의된 지리정보 온톨로지(Geo-Ontology)의 인스턴스로 추가하여 지리 정보 시스템의 비공간 정보를 확장함으로써 특정 시스템에 종속적이지 않고 사용자에게 보다 풍부한 서비스를 제공하기 위한 모델을 제안하고 프로토타입을 구현한다.

• Journal of the Korean Association of Geographic Information Studies
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• v.12 no.4
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• pp.146-157
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• 2009

In order to implement ontology data searching system, this paper uses some methods that effectively analyse searching options/key words with event process model and design pattern. I will propose some techniques on object-oriented process model that should improve reusability of system and reusability of ontology data which users can obtain more precise searching results. This paper shows that ontology-based data searching can assure users of the precision of searching results. Therefore, ontology-based data searching system on object-oriented design pattern is expected to show high stability and reliability, enhance reusability and scalability of modules and softwares and provide reliable data searching results to users.

• Journal of the Korean Geographical Society
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• v.42 no.5
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• pp.788-807
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• 2007

To better publish geographical information on the Web, it is important to capture how Web technologies are changing. For a recent decade, Semantic Web has been developed by incorporating ontologies into the current Web, with an aim to make computers understand rather than simply display. Ontology, an explicit specification of a conceptualization, and the Semantic Web grounded on the ontology, have the potential for effective sharing and appropriate retrieval of geographical information. This paper describes a Semantic Web Service over the mobile Web that can offer pertinent tourism information according to user contexts. To do this, a tourism ontology was formalized in the PARA(Place-Attraction-Resource-Activity) ontology model by organizing tourist places, tourist attractions, tourism resources, and activities. Locational relationships between tourist places were also included in the PARA ontology model to take into account the movements of tourists on a railway network. The XML(Extensible Markup Language) Web Service in the middle tier manages the client-side request for information retrieval and the corresponding server-side response from the data provider. The PARA ontology was integrated into the XML Web Service for the concept-based discovery of tourism information. The applicability of the proposed system was tested through a simulation experiment for Tokyo tourism.

• Journal of the Korean Geographical Society
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• v.48 no.1
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• pp.112-127
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• 2013

It is unsuitable for Korean coastal information to work specific tasks because the coastal information of the current provides simple information, and thus the coastal information is required to reprocess. Therefore, this paper intends to present the ontology model for managing the coastal information using Geo-Ontology and seek application of ontology. The contents of this paper follow as; First of all, I considered the base theories for ontology and related researches. Second, I built Geo-Ontology which defines taxonomy of geographical features and their relationships. Third, I designed and implemented the coastal information ontology about basin of coast, Masan, using Geo-Ontology. Fourth, I carried out semantic queries and reasoning, assessment of the coastal information ontology. This paper will be a base study for many projects which are currently being conducted to integrate spatial information for more effective administrative works and easier maintenance and management of data. Also, this paper is significant in the sense that it is the study preparing for linked data.

• Journal of Korea Spatial Information System Society
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• v.2 no.2 s.4
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• pp.117-126
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• 2000

As the geographical information changes continuously, it has been difficult to manage it in consistent manner. Especially different terminologies are often used for describing the same object. These characteristics of geographical information make the information search be very unproductive. Recently, it is widely recognized that capturing more knowledge is the next step to overcome the current difficulties on sharing geographical information. In this paper, we utilize the ontology concept in order to facilitate information search for geographical data in the internet environment. A prototype of search system implemented using the ontology for river-related data is presented.

• Journal of the Korean Geographical Society
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• v.41 no.5 s.116
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• pp.582-599
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• 2006

Due to the growing popularity of mobile information technology, more people, especially in the general public, have access to computerized geospatial information systems for wayfinding tasks or urban navigation. One of the problems with the current services is that, whether the users are exploring or navigating, whether they are travelers who are totally new to a region or long-term residents who have a fair amount of regional knowledge, the same method is applied and the direction are given in the same way. However, spatial knowledge for a given urban region expands in proportion to residency. Urban navigation is highly dependent on cognitive mental images, which is developed through spatial experience and social communication. Thus, the wayfinding service for a regional community can be highly supported, using well-known regional places. This research is to develop the framework for urban navigation within a regional community. The concept of communal ontology is proposed to aid in urban regional navigation. The experimental work was implemented with case study to collect regional landmarks, develop the ontological model and represent it with formal structure. The final product of this study will provide the geographical information of a region to the other agent and be the fundamental information structure for cognitive urban regional navigation.

• Journal of the Korean Association of Geographic Information Studies
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• v.11 no.3
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• pp.43-51
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• 2008

In this paper, we present WebGIS techniques that can acquire more information from users who offered information and location of region's crops. So that it can be search the information based on Ontology defining Metadata for understand and control more accurately. And this paper shows how to implement about prototype of crops information system for obtaining information of location. Our object is to offer results Service form search, to analyze question of user and to show the exact geographic information about question of user. So this paper can be provide convenience to users that can be show Semantic WebGIS system.

• Journal of the Korean Association of Geographic Information Studies
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• v.13 no.4
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• pp.170-180
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• 2010

With development of the earth's subsurface space, the need for a reliable subsurface spatial model such as a cross-section, boring log is increasing. However, the ground mass was essentially uncertain. To generate model was uncertain because of the shortage of data and the absence of geotechnical interpretation standard(non-statistical uncertainty) as well as field environment variables(statistical uncertainty). Therefore, the current interpretation of the data and the generation of the model were accomplished by a highly trained experts. In this study, a geotechnical ontology model was developed using the current expert experience and knowledge, and the information content was calculated in the ontology hierarchy. After the relative distance between the information contents in the ontology model was combined with the distance between cluster centers, a cluster analysis that considered the geotechnical semantics was performed. In a comparative test of the proposed method, k-means method, and expert's interpretation, the proposed method is most similar to expert's interpretation, and can be 3D-GIS visualization through easily handling massive data. We expect that the proposed method is able to generate the more reasonable subsurface spatial information model without geotechnical experts' help.