The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
기존의 웹 지리정보시스템(GIS)에서는 모든 공간 데이터가 완전히 전송될 때까지 후속 질의를 기다려야 하기 때문에 대기 시간이 길고 접근성이 낮다는 심각한 단점이 있다. 이러한 문제를 해결하기 위해 본 논문에서는 대기 시간을 줄이고 접근성을 높일 수 있는 프로그레시브 전송 방식을 제안한다. 제안된 방법은 다음과 같은 단계를 갖는다. 먼저, POE(Priority_Order_Estimation) 알고리즘을 기반으로 지리적 객체의 중요한 정점을 선택합니다. 둘째, 선택된 꼭짓점은 POQ(Priority_Order_Queue) 데이터 구조에 삽입됩니다. 이를 통해 클라이언트는 전체 지도가 도착할 때까지 기다리지 않고 공간 데이터를 보고, 요청하고, 때때로 거부할 수 있습니다. 셋째, 전송 단계는 POQ의 중요한 정점이 서버에서 클라이언트로 하나씩 전송되는 점진적으로 처리됩니다. 마지막 단계에서는 필요하다면 전송 구조인 SENDOBJSP의 공간 데이터 세트 전체를 전송하여 원본 지도가 정확하게 표시되도록 한다. 여기서 제안하는 시스템의 성능은 시스템 응답 시간, 클라이언트 저장 공간 등의 요소에 따라 평가되었습니다. 비교를 위해 전체 전송 방식, 레이어 전송 방식, 제안하는 4단계 전송 방식을 사용하였다. 기존 웹 기반 GIS에 비해 시스템 응답 시간은 22% 단축되고 클라이언트 저장 공간은 약 21% 감소합니다. 결과적으로 성능이 향상되고 응답 시간이 빨라지며 클라이언트 스토리지 사용량이 줄어듭니다. 따라서 제안된 방법은 환경 관리, Map On Demand 서비스, 평가 및 계획 시스템과 같은 웹 기반 벡터 GIS 애플리케이션을 지원하는 데 크게 기여할 수 있습니다.
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부
Young-Hwan OH, Hae-Young BAE, "Minimizing Up-Front Data Transmission on Web Based Vector GIS" in IEICE TRANSACTIONS on Information,
vol. E85-D, no. 10, pp. 1628-1635, October 2002, doi: .
Abstract: In conventional Web Geographic Information System (GIS), there are serious drawbacks of high waiting time and low accessibility because the subsequent query has to wait until all the spatial data has been completely transmitted. In addressing these problems, this paper proposes a progressive transmission method which can reduce waiting time and increase accessibility. The proposed method has the following steps. First, significant vertices of geographic objects are selected into based on an algorithm, Priority_Order_Estimation (POE). Second, the selected vertices are inserted the data structure, Priority_Order_Queue (POQ). This allows a client to view, to request and occasionally to reject spatial data, rather than waiting for the whole map to arrive. Third, the transmission steps are processed progressively, where significant vertices of POQ are sent from server to client one by one. In the final step, if necessary, the entire spatial data set of SENDOBJSP, which is a transmission structure, is transmitted so that the original map is accurately displayed. The performance of the system proposed here has been evaluated according to the factors such as system response time and client storage space. For the comparisons, the total transmission method, layer transmission method and the proposed four-step transmission method were used. Compared with the conventional Web-based GIS, the system response time is twenty-two percent shorter and client storage space is reduced by about twenty-one percent. As a result, performance improvement, fast response time and less client storage usage, is achieved. Therefore, the proposed method can make a significant contribution in support of Web-based Vector GIS applications such as Environmental Management, Map On Demand Service and Assessment and Planning System.
URL: https://global.ieice.org/en_transactions/information/10.1587/e85-d_10_1628/_p
부
@ARTICLE{e85-d_10_1628,
author={Young-Hwan OH, Hae-Young BAE, },
journal={IEICE TRANSACTIONS on Information},
title={Minimizing Up-Front Data Transmission on Web Based Vector GIS},
year={2002},
volume={E85-D},
number={10},
pages={1628-1635},
abstract={In conventional Web Geographic Information System (GIS), there are serious drawbacks of high waiting time and low accessibility because the subsequent query has to wait until all the spatial data has been completely transmitted. In addressing these problems, this paper proposes a progressive transmission method which can reduce waiting time and increase accessibility. The proposed method has the following steps. First, significant vertices of geographic objects are selected into based on an algorithm, Priority_Order_Estimation (POE). Second, the selected vertices are inserted the data structure, Priority_Order_Queue (POQ). This allows a client to view, to request and occasionally to reject spatial data, rather than waiting for the whole map to arrive. Third, the transmission steps are processed progressively, where significant vertices of POQ are sent from server to client one by one. In the final step, if necessary, the entire spatial data set of SENDOBJSP, which is a transmission structure, is transmitted so that the original map is accurately displayed. The performance of the system proposed here has been evaluated according to the factors such as system response time and client storage space. For the comparisons, the total transmission method, layer transmission method and the proposed four-step transmission method were used. Compared with the conventional Web-based GIS, the system response time is twenty-two percent shorter and client storage space is reduced by about twenty-one percent. As a result, performance improvement, fast response time and less client storage usage, is achieved. Therefore, the proposed method can make a significant contribution in support of Web-based Vector GIS applications such as Environmental Management, Map On Demand Service and Assessment and Planning System.},
keywords={},
doi={},
ISSN={},
month={October},}
부
TY - JOUR
TI - Minimizing Up-Front Data Transmission on Web Based Vector GIS
T2 - IEICE TRANSACTIONS on Information
SP - 1628
EP - 1635
AU - Young-Hwan OH
AU - Hae-Young BAE
PY - 2002
DO -
JO - IEICE TRANSACTIONS on Information
SN -
VL - E85-D
IS - 10
JA - IEICE TRANSACTIONS on Information
Y1 - October 2002
AB - In conventional Web Geographic Information System (GIS), there are serious drawbacks of high waiting time and low accessibility because the subsequent query has to wait until all the spatial data has been completely transmitted. In addressing these problems, this paper proposes a progressive transmission method which can reduce waiting time and increase accessibility. The proposed method has the following steps. First, significant vertices of geographic objects are selected into based on an algorithm, Priority_Order_Estimation (POE). Second, the selected vertices are inserted the data structure, Priority_Order_Queue (POQ). This allows a client to view, to request and occasionally to reject spatial data, rather than waiting for the whole map to arrive. Third, the transmission steps are processed progressively, where significant vertices of POQ are sent from server to client one by one. In the final step, if necessary, the entire spatial data set of SENDOBJSP, which is a transmission structure, is transmitted so that the original map is accurately displayed. The performance of the system proposed here has been evaluated according to the factors such as system response time and client storage space. For the comparisons, the total transmission method, layer transmission method and the proposed four-step transmission method were used. Compared with the conventional Web-based GIS, the system response time is twenty-two percent shorter and client storage space is reduced by about twenty-one percent. As a result, performance improvement, fast response time and less client storage usage, is achieved. Therefore, the proposed method can make a significant contribution in support of Web-based Vector GIS applications such as Environmental Management, Map On Demand Service and Assessment and Planning System.
ER -