期刊文献+
共找到6篇文章
< 1 >
每页显示 20 50 100
Research on Ubiquitous Map Information Organization Oriented to Location-Based Aggregation
1
作者 Si Wang Guangxia Wang 《Journal of Geoscience and Environment Protection》 2022年第1期238-249,共12页
<div style="text-align:justify;"> In the era of information and communication technology (ICT) and big data, the map gradually shows a new qualitative feature of “spatiotemporal ubiquitous” due to th... <div style="text-align:justify;"> In the era of information and communication technology (ICT) and big data, the map gradually shows a new qualitative feature of “spatiotemporal ubiquitous” due to the extension of its object space and the geographic information it contains, which brings new challenges to map information organization. This paper analyzes the concept and information characteristics of the ubiquitous map. Based on that, it proposes a ubiquitous map information organization model oriented to location-based aggregation. This new model includes three parts as “ubiquitous map instance”, “location-based aggregation mode” and “map scene”. This paper focuses on the “map scene” part which is the core of the model and contains two mutually mapped aspects as “content scene” and “representation scene”. And both aspects are divided into three levels as “features” ←→ “elements” ←→ “scenes” according to ubiquitous map information characteristics and location-based aggregation mode. With cases of map decomposition, the application of the model is explained to illustrate its effectiveness. The model is expected to provide powerful data organization and management capabilities for ubiquitous map production and use. </div> 展开更多
关键词 Ubiquitous Map information organization Location-Based Aggregation Map Scene
下载PDF
The Dynamic Modeling Algorithm of Information Organization and Allocation Problem on Internet Communications
2
作者 Li Yuan-xiang, Liu Dong-mei State Key Laboratory of Software Engineering, Wuhan University, Wuhan 430072, Hubei, China 《Wuhan University Journal of Natural Sciences》 CAS 2003年第S1期265-268,共4页
With the frequent information accesses from users to the Internet, it is important to organize and allocate information resources properly on different web servers. This paper considers the following problem; Due to t... With the frequent information accesses from users to the Internet, it is important to organize and allocate information resources properly on different web servers. This paper considers the following problem; Due to the capacity limitation of each single web server, it is impossible to put all information resources on one web server. Hence it is an important problem to put them on several different servers such as: (1) the amount of information resources assigned on any server is less than its capacity; (2) the access bottleneck can be avoided. In order to solve the problem in which the access frequency is variable, this paper proposes a dynamic optimal modeling. Based on the computational complexity results, the paper further focuses on the genetic algorithm for solving the dynamic problem. Finally we give the simulation results and conclusions. 展开更多
关键词 organization and allocation of information dynamic modeling genetic algorithm
下载PDF
Information Organization and Visualization Mechanism of Electronic Map 被引量:2
3
作者 CAI Zhongliang WANG Qiao WENG Min JIANG Shanshan DU Qingyun 《Geo-Spatial Information Science》 2008年第4期262-268,共7页
Based on research on information organization and visualization mechanism of multimedia electronic map, this paper proposes an organization method about spatial information and multimedia information of multimedia ele... Based on research on information organization and visualization mechanism of multimedia electronic map, this paper proposes an organization method about spatial information and multimedia information of multimedia electronic map: seamless spatial data were organized and managed by stratified expansion R-tree and Quad-tree hierarchy; and multimedia information data were organized and managed by hypermedia model based on an electronic map. Considering electronic map features, the paper also proposes a method for spatial date organization, which integrates Digital Landscape Model and Digital Cartographic Model, and a hybrid model between vector and raster spatial data. Then, the paper studies information visualization mechanism of multimedia electronic map. Finally, the paper certifies the results via a case of multimedia electronic map authoring tools software—Atlas2005. 展开更多
关键词 electronic map information organization hypermedia model VISUALIZATION
原文传递
Research on Model of Virtual Organization and Its Practice
4
作者 Shengfu Liu Guoxin Liu Yurong Zeng 《Chinese Business Review》 2004年第1期24-28,共5页
This paper discusses an organizational model to be used for both conventional and virtual organizations. The model deals with variable relationships within an organization and provides a framework for overall organiza... This paper discusses an organizational model to be used for both conventional and virtual organizations. The model deals with variable relationships within an organization and provides a framework for overall organizational design that may include relationship among different design variables and external relationship with environment. Based on the researches of virtual organization, this paper also illustrates the new model of organization in the real world such as Beijing 2008 Olympic games and Dongfeng Automobile group. 展开更多
关键词 business process information technology organizational model value chain virtual organization
下载PDF
Study of Construction of Personalized Service Oriented Government Virtual Information Service Center
5
作者 LIU Xilin LI Dong School of Management, Northwestern Polytechnical University, Xi’an 710072, P. R. China 《Chinese Forestry Science and Technology》 2009年第3期19-31,共13页
In this paper, we proposed the idea of personalized information service for enterprises and customers through government visual information service center (GVISC). It discusses an extensible, reusable, reconstructive ... In this paper, we proposed the idea of personalized information service for enterprises and customers through government visual information service center (GVISC). It discusses an extensible, reusable, reconstructive and integrated framework of GVISC with new techniques, such as XML, agent, data mining and information portal. They include the design and analysis of the logical structure, the design of the data layer, and the description of the function application. We show an example of personalized information service for forest fire prevention in the government virtual information service center. 展开更多
关键词 personalized information service E-GOVERNMENT forest information service forest information organization government virtual information service center
原文传递
The Way to Open Access-French Strategies to Move Forward 被引量:2
6
作者 Herbert Gruttemeier 《图书情报工作》 CSSCI 北大核心 2006年第1期28-33,27,共7页
In France, the movement in favour of open access to scientific research output is getting increasingly coordinated and supported at the political level. The CNRS, a leading research organization in Europe and signator... In France, the movement in favour of open access to scientific research output is getting increasingly coordinated and supported at the political level. The CNRS, a leading research organization in Europe and signatory of the Berlin Declaration, has an evident strategic role to play in this development. Various initiatives that have emerged in the French academic world in recent years have led, for example, in early 2005 to the joint announcement, by four major research institutions, of a common policy to promote open access to published material and other types of digital resources, and to set up institutional archives. The article highlights some key issues of this policy, gives an overview of the current and past CNRS involvement in open access and describes the principal functions, as well as the related challenges, of the future institutional repositories. 展开更多
关键词 open access scientific information institutional archive research organization France
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部