• The Journal of the Korea Contents Association
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• v.12 no.1
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• pp.17-29
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• 2012

In recent years, Linked Data that is published under an open license shows increased growth rate and comes into the spotlight due to its interoperability and openness especially in government of developed countries. However there are relatively few out-links compared with its entire number of links and most of links refer a few hub dataset. These occur because of absence of technology that identifies entities in Linked data. In this paper, we present an improved author entity resolution method that using representative properties. To solve problems of previous methods that utilizes relation with other entities(owl:sameAs, owl:differentFrom and so on) or depends on Curation, we design and evaluate an automated realtime resolution process based on multi-ontologies that respects entity's type and its logical characteristics so as to verify entities consistency. The evaluation of author entity resolution shows positive results (The average of K measuring result is 0.8533.) with 29 author information that has obtained confirmation.

• Journal of the Korean Society for information Management
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• v.31 no.4
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• pp.249-266
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• 2014

In South Korea, systems related to the provision of public data were recently implemented. As a result, policy changes have been made that are headed in the direction of actively providing open access to data held by public institutions, such as government agencies and local municipalities. The purpose of the open I will be divided into two broad. To ensure the transparency of government operations, and is intended to satisfy the right to know the people. The other one is to create national interest by utilizing the public data as one country endowment assets. In this study, we analyze the open situation of public data, were presented the improvement measures. Range of research, the public data that local government owns, to determine to have a central information and other limitations and characteristics, Seoul the beginning to the seventeen regional support municipality 228 that you have held for city districts were census. According to the research results, local governments, themselves produced, is a relatively reluctant to disclosure and understanding of the list of public data that are holdings. According to the research results, local governments, themselves produced, is a relatively reluctant to disclosure and understanding of the list of public data that are holdings, also emphasizes the conservative value than take advantage of value have had. Therefore, it was determined that there is a need to resolve several issues through disclosure via a linked data format as a strategy to increase the openness and utilization of local public data.

• Journal of Korean Library and Information Science Society
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• v.45 no.4
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• pp.429-455
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• 2014

The information of figures in science which could induce interest in science and have educational importance is the value-added content through information sharing and connectivity. In this study, we analyzed domestic and overseas cases of Linked Open Data(LOD) that are being increased recently in order to provide a better service through information sharing and utilization of scientific figures. We suggested an efficient scientific figures ontology and the method for LOD construction reflecting the results of the analysis. We also presented plans for the interlinking among various external resources and for promoting LOD information use.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.11a
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• pp.975-977
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• 2017

본 논문은 링크드 오픈 데이터(Linked Open Data)의 일종인 DBpedia 개체를 위치기반으로 검색하여 지도상에 표시해주고, 표시된 개체중 하나를 선택하게 되면 개체에 관한 RDF 형태의 데이터를 파싱하여 개체에 관한 기본적인 정보와 사진과 외부로의 링크 등을 제공한다. 또한 개체가 가지는 특성을 지정하여 지도에 선택적으로 표시하는 필터링 기능을 제공한다. 이러한 웹 애플리케이션을 개발하기 위해 오픈소스 웹 프레임워크인 루비 온 레일즈(Ruby on Rails)를 사용하였고, HTML5와 Google Map API를 활용한 반응형 웹 애플리케이션으로 구현하였다.

• Journal of the Korean Society for information Management
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• v.34 no.1
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• pp.341-371
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• 2017

Recently, the web service environment has changed from document-centered to data-oriented focus, and the Linked Open Data (LOD) exists at the core of the new environment. Specific procedures and methods were examined to build the LOD of records information in accordance with this trend. With the service sustainability of small-scale archive in consideration, an exemplification on LOD building process by utilizing open source software was developed in this paper. To this end, a 5-step service framework for LOD construction was proposed and applied to a collection of diary records from 'Human and Memory Archive'. Proof of Concept (POC) utilizing open source softwares, Protege and Apache Jena Fuseki, was conducted according to the proposed 5 step framework. After establishing the LOD of record information by utilizing the open source software, the connection with external LOD through interlinking and SPARQL search has been successfully performed. In addition, archives' considerations for LOD construction, including improvement on the quality of content information, the role of the archivist, were suggested based on the understanding obtained through the LOD construction process of records information.

• Journal of the Korean Society for Library and Information Science
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• v.51 no.3
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• pp.163-188
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• 2017

This study aims to propose disaster safety information service model based on LOD for effective management and dissemination of the information. To achieve the aim of this study, current state of disaster safety information was analyzed through online search and face-to-face interviews, and then the information was divided into 6 types. Finally, this study proposed specific process of building disaster safety information LOD service with considerations reflecting the information characteristics. The process for building LOD was based on Guidelines for Building Linked Data written by National Information Society Agency. Especially, ontology concept model was defined by using standard lexical resources and modeling tools based on 6 types of disaster safety information, and classes and properties were proposed. The results of this study will make disaster safety information more useful for common people.

• The Journal of Bigdata
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• v.4 no.2
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• pp.195-205
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• 2019

Linked Open Data (LOD) is rated as the best of any kind of data disclosure, and allows you to search related data by linking them in a standard format across the Internet. There is an increasing number of cases in which relevant data are constructed in the LOD form in the global environment, but in the domestic healthcare sector, the disclosure of data in the form of LOD is still at the beginning stage. In this paper, we introduce a case of LOD platform construction that provides services by linking domestic and international related data by LOD method, based on the data of Korean medical research paper data and health care big data linkage platform. Linking all data from each DB into an LOD requires a lot of time and effort, and is basically an infrastructure task that government or public institutions should be in charge of rather than the private sector. In this study, ten domestic and foreign LOD sites were linked with only a portion of each DB, enabling users to link data from various domestic and foreign organizations in a convenient manner.

• Spatial Information Research
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• v.23 no.2
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• pp.59-68
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• 2015

According to the NGIS (National Geographic Information System) project conducted since 1995, the central and local government has been accumulating huge amount of geospatial data. Korean Ministry of Land, Infrastructure and Transport started its GeoSpatial open platform (V-World) service in January 2012, also offering a wide range of functions and services. However, the National GeoSpatial open platform is still woefully deficient for the users to find their desired data, lack of data for private business area, insufficient in publicity of local government and public-private partnerships. Through analyzing current research trend after GeoSpatial open platform served for three years, study on overseas expansion, system links, service improvement, utilization and future strategy has been mainly conducted. This study, by analyzing the advanced overseas GeoSpatial platform as well as domestic research trend and combining the concept of new technology, business platform and SMG (Seoul Metropolitan Government)'s GeoSpatial platform, proposes a policy for the construction of future GeoSpatial Open Platform model.

• Annual Conference on Human and Language Technology
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• 2021.10a
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• pp.582-587
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• 2021

한국어 통합 지식베이스를 생성하기 위해 필수적인 분류체계(taxonomy)를 구축하는 방식을 제안한다. 위키데이터를 기반으로 분류 후보군을 추출하고, 상하위 관계를 통해 방향 비순환 그래프(Directed Acyclic Graph)를 구성한 뒤, 국부적 도달 중심성(local reaching centrality) 등의 정보를 활용하여 정제함으로써 246 개의 분류와 314 개의 상하위 관계를 갖는 분류체계를 생성한다. 워드넷(WordNet), 디비피디아(DBpedia) 등 기존 링크드 오픈 데이터의 분류체계 대비 깊이 있는 계층 구조를 나타내며, 다중 상위 분류를 지닐 수 있는 비트리(non-tree) 구조를 지닌다. 또한, 위키데이터 속성에 기반하여 위키데이터 정보가 있는 인스턴스(instance)에 자동으로 분류를 부여할 수 있으며, 해당 방식으로 실험한 결과 99.83%의 분류 할당 커버리지(coverage) 및 99.81%의 분류 예측 정확도(accuracy)를 나타냈다.

• Proceedings of the Korea Information Processing Society Conference
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• 2017.04a
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• pp.1047-1048
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• 2017

본 논문은 위치 기반 DBpedia 모바일 브라우저 개발에 관한 내용으로 사용자의 현재 위치를 중심으로 Google Map과 DBpedia를 매쉬업하여 주변의 DBpedia 개체를 표시하고, 링크를 통해 추가적인 RDF 시맨틱 정보를 탐색할 수 있는 기능을 제공한다. DBpedia는 Wikipedia로부터 구조화된 데이터를 추출하여 RDF 형식으로 저장한 지식베이스로서 오늘날 엄청난 규모의 빅데이터로 발전되고 있는 링크드 오픈 데이터(Linked Open Data)에서 가장 핵심으로 부각되고 있다. DBpedia는 약 73만개의 장소 및 지역에 관한 정보를 포함하여 약 4백 58만 가지의 다양한 개체들에 관한 정보를 가지고 있으며 여러 종류의 위치기반 데이터 세트도 보유하고 있다. 본 연구에서 개발된 브라우저는 이러한 데이터 세트 내용을 스마트폰의 위치정보서비스를 활용하여 주변에 있는 장소나 건물 등을 지도에 표시하고, 해당 개체에 대한 간단한 요약 정보와 추가적인 시맨틱 정보 검색을 위한 링크를 제공한다.