• Title/Summary/Keyword: 내비게이션 자료

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Slope Navigation based on the Cut Slope Data Management System (내비게이션 기반 절토사면 데이터 관리시스템)

  • Bae, Sang-Woo;Kim, Seung-Hyun;Lee, Jong-Hyun;Koo, Ho-Bon;Lee, Yun-Rae
    • Journal of Korean Society for Geospatial Information Science
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    • v.18 no.4
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    • pp.71-77
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    • 2010
  • Cut Slope Management System(CSMS) is a systematic maintenance and management system designed to prevent the collapse of cut slopes located along national roads. In order to implement safe road operation system, KICT has started the inventory of cut slopes and developed a cut slope database since 2006. Cut slope database management system using GIS technology and navigation system was developed as a Information Technology application. Through the Cut Slope Navigation System(SLOPE-Navi.), the previously developed database was checked and verified. The converted cut slope inventory data and field investigation data of 28,707 cut slopes were loaded on the navigation map. We consider that the Cut Slope Navigation Management System can be useful as in-situ system, which can be systematic and effective DB management and operation to prevent cut slope collapses and establish a remedial countermeasure as mitigation concerning disasters.

A Study on Faceted Navigation of the Public Libraries (공공도서관의 패싯 내비게이션에 관한 연구)

  • Yoo, Yeong-Jun
    • Journal of Korean Library and Information Science Society
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    • v.45 no.1
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    • pp.339-358
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    • 2014
  • This study aims to construct faceted navigation useful for domestic users through analyzing English and North American public libraries' faceted navigations. The 19 domestic libraries and the 12 foreign libraries has been chosen for analyzing their unique facets. Although the domestic libraries' facets had no differences to the domestic universities' facets, the North American libraries have their unique facets. Those facets are target audience, genre, library list, user tags, and availability related facets and the facets are mainly to improve user's usability in using library catalog. Adopting the facets in domestic public libraries by using Fixed-Length data elements of KORMARC, domestic public libraries will enhance usability of library users in retrieving library materials.

The Study for Estimating Traffic Volumes on Urban Roads Using Spatial Statistic and Navigation Data (공간통계기법과 내비게이션 자료를 활용한 도시부 도로 교통량 추정연구)

  • HONG, Dahee;KIM, Jinho;JANG, Doogik;LEE, Taewoo
    • Journal of Korean Society of Transportation
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    • v.35 no.3
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    • pp.220-233
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    • 2017
  • Traffic volumes are fundamental data widely used in various traffic analysis, such as origin-and-destination establishment, total traveled kilometer distance calculation, congestion evaluation, and so on. The low number of links collecting the traffic-volume data in a large urban highway network has weakened the quality of the analyses in practice. This study proposes a method to estimate the traffic volume data on a highway link where no collection device is available by introducing a spatial statistic technique with (1) the traffic-volume data from TOPIS, and National Transport Information Center in the Ministry of Land, Infrastructure, and (2) the navigation data from private navigation. Two different component models were prepared for the interrupted and the uninterrupted flows respectively, due to their different traffic-flow characteristics: the piecewise constant function and the regression kriging. The comparison of the traffic volumes estimated by the proposed method against the ones counted in the field showed that the level of error includes 6.26% in MAPE and 5,410 in RMSE, and thus the prediction error is 20.3% in MAPE.

A Study on Satisfaction with and Use Behavior of Mobile Navigation Service (모바일 내비게이션 서비스의 만족도와 이용행태에 관한 연구)

  • Lee, Je-Sung;Kim, Hae-In;Moon, Ji-Hye;Lee, June-Young
    • Journal of Digital Convergence
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    • v.18 no.3
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    • pp.111-121
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    • 2020
  • The purpose of this study is to examine the satisfaction of consumers using the mobile navigation service which is continuously growing. This study examined variables that affect the service use behaviors and satisfaction of 1200 consumers using service. According to the results of the study, consumers used the service 1-2 or 3-4 times per week, more frequently used in the lunch time(weekends) and in the morning(weekdays). The core functional dimension was shown to have the largest effect on satisfaction with the service. Among consumption emotions, positive emotions had effects in the positive direction while negative emotions had effects in the negative direction, and the effect of innovativeness was not significant. Through the foregoing, the use behavior and the formation of satisfaction could be analyzed and the results of this study can be used in establishing service strategies later and can be also used as basic data of the navigation industry.

Methodology on e-Navigation-Assisted Ocean Monitoring and Big Data Analysis (이내비게이션을 활용한 해양환경관측 및 빅데이터 분석방안)

  • LEE, GUAN-HONG;PARK, JAE-HUN;HA, HO KYUNG;KIM, DO WAN;LEE, WOOJOO;KIM, HONGTAE;SHIN, HYUN-JUNG
    • The Sea:JOURNAL OF THE KOREAN SOCIETY OF OCEANOGRAPHY
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    • v.23 no.4
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    • pp.204-217
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    • 2018
  • This study proposes a cost-effective method to monitor coastal environments using e-Navigation-implemented domestic and international ferries, and to analyze big data of records such as wind, temperature, salinity, waves, and currents that are gathered through e-Navigation system. First, we present the concept and architecture of e-Navigation operation system based on the General Information Center on Maritime Safety and Security. Then, the marine observation system that can be applied to ferries operating in our nation's territory is discussed. Analytical methods, such as spatio-temporal mixed effects model, ensemble method, and meshfree method, in handling real-time big data obtained by the e-Navigation observing system are then explained in detail. This study will support the implementation of the Korean e-Navigation project that focuses on the safety of small vessels such as coasters and fishing vessels.

Proposing Construction of Pedestrian Path Network from the Existing Geospatial Data Sets (기 구축된 공간정보를 활용한 보행자 네트워크 생성에 관한 연구)

  • Kim, Ji-Young;Yu, Ki-Yun;Kim, Jung-Ok
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2009.04a
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    • pp.7-9
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    • 2009
  • Because unlike cars, pedestrians are not moving along the middle axis of street lanes, PNS needs more sophisticated information. So we defined the specific needs of pedestrians, analyzed already existing geodata sets and selected the reasonable layers.

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Proposal for Safer Routing Services in Car Navigation Systems based on an Inundation Hazard Index of Road Links (침수위험지수를 활용한 안전한 경로탐색서비스 제안)

  • Kim, Ji-Young;Kim, Ki-Rack;Bae, Young-Eun;Yu, Ki-Yun
    • 한국방재학회:학술대회논문집
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    • 2010.02a
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    • pp.46.1-46.1
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    • 2010
  • 본 연구에서 우리는 폭우로 인하여 도로의 일부 또는 전체가 침수되는 경우 침수정보를 바탕으로 생성된 안전한 경로탐색을 차량 내비게이션 사용자에게 제공하는 서비스를 제안한다. 이를 위하여 수치고도모델(DEM)을 활용한 공간분석과 폭우로 도로침수가 발생된 일자의 이력강수량을 기반으로 도로링크별 침수위험지수를 생성하였다. 이렇게 생성된 침수위험지수를 이용하여 실제 내비게이션 환경에 시나리오별로 적용해 봄으로써 그 활용가능성을 살펴보았다. 그 결과 기존의 최단경로를 서비스하는 것과 비교시 보다 안전한 경로를 탐색하는 것으로 분석되었다. 그러나 보다 정교하고 정확한 서비스를 위하여서는 도로침수와 관련된 자료 구축이 요구되며, 해상도가 높은 DEM을 활용하여 침수가 가능한 지역을 분석할 필요가 있으며, 무엇보다도 신뢰할 수 있는 강수량 예보가 요구된다.

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Improving Faceted Navigation Using the KDC Tables for the Korean Bibliography (KDC 조기표를 이용한 국내서의 패싯 내비게이션 기능 개선 방안)

  • Park, Zi-Young
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.23 no.1
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    • pp.47-63
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    • 2012
  • The purpose of this study is to improve the faceted navigation function of next-generation library catalogs(NGC) using the tables in a classification scheme. Because the tables provide forms or contents of materials systematically, faceted navigation based on the tables can be as effective as faceted navigation based on language, publishing date, or class-level subject facet. Therefore, class numbers based on the Korean Decimal Classification (KDC) were examined and the characteristics of schedules and tables were analyzed. As a result, suggestions to improve faceted navigation was provided. Moreover, the method using the tables does not need additional resources to derive facets because the facet analysis process is always carried out in the classification process.

Implementing the Faceted Navigation Interface for Searching Performing Arts Contents (공연예술 콘텐츠 검색을 위한 패싯 내비게이션 인터페이스 구현)

  • Lee, Won-Kyung;Seo, Eun-Gyoung
    • Journal of the Korean Society for information Management
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    • v.33 no.2
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    • pp.77-102
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    • 2016
  • The effective searching for performing arts contents can be achieved by providing various access points and searching methods based on specialized metadata. The purpose of this study is to develop a faceted navigation interface which user could effectively and efficiently retrieve performing arts contents even if the users do not know accurate descriptive information about them. Therefore, the study, first, investigated search access points and navigation items providing by other the performing arts retrieval systems and to analyze information seeking behaviors of university students who major in music, dance and theater. And then, the study proposed the 36 facets with the 9 main facet categories suitable for performing arts and also proposed 27 descriptive elements suitable for performing arts contents. Finally, the study developed the performing arts contents retrieval system based faceted navigation interface with 3,360 experimental data and conducted an in-depth interview in terms of usability, serendipity, and efficiency. The applying the faceted navigations for searching performing arts contents will help users access and utilize them in the retrieval system and moreover satisfy user demands.

Method for the evaluation of Unit Load of Road­-Section CO2 Emission Based on Individual Speed Data (개별 속도자료기반 도로구간 CO2 배출량 원단위 산정 방안)

  • Park, Chahgwha;Yoon, Byoungjo;Chang, Hyunho
    • Journal of the Society of Disaster Information
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    • v.13 no.1
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    • pp.96-105
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    • 2017
  • Global warming, mainly caused by CO2, is one of the on­going cataclysms of the human race. The nation­wide policy to reduce greenhouse gases (GHG) has been enforced, for which it is crucial to estimate reliable GHG emissions. The unit load of road­section CO2 emission (URSCE) is a prerequisite for the evaluation of GHG emissions from road mobile source, and it is mainly computed using vehicular velocity source. Unfortunately, there is real­world limitations to collect and analyse representative speed data for nation­wide road network. To tackle this problem, a method for the evaluation of URSCE, proposed in this study, is based on a disaggregated way using big GPS vehicle data. The method yields more accurate URSCE than an current aggregated data based approach and can be directly employed for nation­wide road systems.