• Proceedings of the Korea Information Processing Society Conference
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• 2011.04a
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• pp.307-310
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• 2011

본 논문에서는 센서 데이터의 불확실성을 고려한 효과적인 점유 격자 지도 작성 방법을 제안하고, Lego Mindstorm NXT Kit과 leJos NXT를 이용하여 개발된 환경 지도 작성을 위한 자율 이동 로봇시스템의 설계와 구현에 대해 소개한다. 그리고 제안된 점유 격자 지도 작성 방법의 효과와 성능을 확인하기 위한 실험 결과도 소개한다.

• Journal of KIISE:Computing Practices and Letters
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• v.12 no.1
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• pp.9-20
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• 2006

Web Map Service on mobile environment, provided with cost effective mobile GIS contents and user preferred POIs(Points of interests), is strongly required at this moment when mobile and portable Internet is rapidly spreaded on mobile user community as information technology and mobile HW are evolved in its speed, bandwidth and features. As the mobile and portable Internet becomes popular in mobile services, LBS(Location Based Service) is positioned on a mobile client as one of the best information infra services. Recently mobile GIS (Geographic Information System) comes in service to support LBS, but it is constrained and limited on its system configuration and its presentation methodology of a map, and also it depends on its run time environment. In this paper, we made an effort to design and implement a GIS computing platform with server based thin client for mobile WMS(Web Map Service). For its cost effective Platform which could be easily building up POIs and GIS contents, we're not using commercial GIS solution but NGII's (National Geographic Information Institute's) DXF numerical map, and representing the maps, GIS contents and POIs by SVG(Scalable Vector Graphics) recommended by OGC(OpenGis Consortium). We're also adapting de facto standard of XML web service technology such as WSDL, SOAP to provide real time mobile GIS service on PDA as well as mobile terminal by applying a GPS receiver for a user's location information on mobile environment.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.27 no.1
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• pp.735-742
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• 2009

National Geographic Institute recently has produced a national paper map by means of a computer aided editing system using a national digital map 2.0. However, the map generalization should be made due to the portrayal difference between the digital map and the paper one and the criterion of the map generalization should be determined by the visual image. The tolerance limit of the map generalization has to be decided based on human vision. For this purpose, this study attempts to measure the size of the building on various scale map and then analyze its result. As a consequence, this study shows us that the building size eligible for human vision should be over 0.4mm in the short side of building on the map. The tolerance limit of an isolated building, a reduced building and a densely built-up area for the map generalization is based on the criterion mentioned above.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.16 no.1
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• pp.139-147
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• 1998

The national topographic basedata should meet a variety of user requirements. To generate, maintain and handle the national topographic basedata in economic and effective way, the nationally supported research works on data model, structure and feature classification system should be intensively undertaken by government agency, research institute and university. This paper presents the technical definitions of conceptual and logical model for proposed data model representing digital map data. The key aspects of the proposed data model are flexibility for accommodating user requirements as well as step-by-step approach for modification as necessary m recent future. Conclusively, the proposed data model is a transitional data model between simple graphical model and object oriented data model.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.29 no.3
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• pp.111-137
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• 2018

The purpose of this study is to analyze tasks of the librarians manning reading guidance at public library in order to enhance the professionalism of reading instruction required by librarians. For this purpose, we used the study method such as literature study and FGI analysis. As a result, The duty and task for Special Librarians in Reading Guidance was organized with 15 duties and 55 tasks.

• Proceedings of the Korean Society for the Gifted Conference
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• 2003.11a
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• pp.199-208
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• 2003

현대사회를 지식 정보사회라고 한다. 정보 매체인 컴퓨터의 등장은 모든 분야에 획기적인 변화를 가져왔고 그 변화는 계속되고 있다. 교육의 분야도 예외가 아니다. 업무처리와 학생지도에 컴퓨터가 도입되면서 능률적인 일처리와 다양한 방법의 학습지도가 가능하게 되었다. 초등 컴퓨터 교과가 재량활동의 교과로 선정되면서 컴퓨터 교과에 대한 교육과정 개발과 평가방법의 연구가 활발하게 전개되고 있다. 모든 교육활동에 있어 평가라는 부분을 그 교육활동의 성패를 좌우하는 중요한 요소이기에 아주 중요한 부분이다. 초등 컴퓨터 교과에 대한 전반적인 내용과 평가 방법을 살펴보고, 각 단계별 영역별 내용에 따른 평가 예시를 하였다.

• Digital Contents
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• no.6 s.85
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• pp.18-21
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• 2000

웹상에서 콘텐츠는 원래 다른 사람의 콘텐츠에 새로운 정보를 추가할 수가 없다 물론 방법상으로 가능하다고 해도 그것은 소유권의 문제때문에 쉽사리 할 수 없는 일이다. 하나 열린 콘텐츠를 이용해 기존의 콘텐츠에 새로운 정보를 추가하는 방법들이 사용되어야만 하고 정보검색과 정보추가 등 사용자 입장에서 다양하고 효율적인 검색이 이뤄져야 한다. 이에 지도 정보를 이용한 정보의 시각화와 새로운 검색의 방법을 알아보자. 더불어 지도정보는 다양한 컨텐츠와의 연계를 통해서 정보이용의 새로운 길을 열어 줄 것으로 기대되고 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2013.05a
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• pp.371-373
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• 2013

입체영상을 생성하기 위한 방법 중 깊이지도(depth-map)을 이용하는 방법이 있다. 깊이지도를 생성하기 위해서는 스테레오 시스템(stereo system)을 통한 두 대의 카메라 정보를 통하여 접근하는 것이 일반적인 방법으로, 시스템 구현, 연산량, 계산 오차 등의 이유로 상당히 제약사항이 많다. 본 논문에서는 모바일 시스템에서의 단일 카메라를 사용하여 영상 인식 및 부가정보를 통한 거리정보 생성에 대한 시스템을 제안한다.

• School Mathematics
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• v.16 no.3
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• pp.471-489
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• 2014

In this study, we carried out mathematics teacher-training course. The topic of this training course is the understanding of content area reading in school mathematics. The teacher-training course is planned to guide mathematics teachers can perform effectively the teaching of content area reading. In particular, we illustrated the pre-service mathematics teacher education practice. Mathematics teachers investigated various teaching strategies that can lead their students read reading materials related to mathematics effectively. In this training courses, teachers reflects on their own experience and they have an opportunity to learn the new strategies that improve their teaching methods. Teacher educator and in-service teachers share and discuss their practices, they have a meaningful learning experiences. In this study, we presented the processes of the teacher-training course and the results of practice. Furthermore, on the basis of the limitations of this study, we suggested recommendations for the future teacher training program.

• The KIPS Transactions:PartD
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• v.10D no.3
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• pp.359-366
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• 2003

Although the reuse of the cached data for scrolling the map reduces the amount of passed data between client and server, it needs the conversions of data coordinates, selective deletion of objects, cache compaction and object structuring step in the clients. The conversion is a time- intensive operation due to limited resources of mobile phones such as low computing power, small memory. Therefore, in order to control the map efficiently in the vector map service based mobile phones, it is necessary to study the methods which reuse cached objects for reducing wireless network bandwidth and overwhelming the limited resources of mobile phones as well. This paper proposes the methods of reusing pre-received spatial objects for map control in the mobile vector map service system based on client-server architecture. The experiments conducted on the Web GIS systems with real data show that the proposed method is appropriate to map services for mobile phone. We also analyze the advantages and drawbacks between the reuse of cached data and transmission of raw data respectively.