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面向智能空间信息服务的网格GIS节点构建 总被引:3,自引:0,他引:3
针对网格空间信息智能服务系统的特点,将空间信息服务节点分为门户节点、管理节点、空间信息服务节点和功能服务节点四类,并对每类节点的构建进行了阐述,结合系统应用设计了一个试验环境,并进行了试验和总结。 相似文献
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基于地理事件时变序列的时空数据模型研究与实现 总被引:14,自引:1,他引:14
首先分析比较了已有的时空数据模型的特点,针对其存在的不足,提出并讨论了一种基于地理事件时变序列的时空数据模型,阐述了该模型的时空语义概念和时空拓扑关系,并针对具体的实际应用,在现有成熟的GIS平台上进行扩展,验证了该数据模型的有效性。 相似文献
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作为GIS空间信息的重要组成元素之一,多媒体信息由于存储信息量大,表现直观,在信息表达上发挥着重要作用。在GIS系统中如何有效存储和管理多媒体信息,成为众多GIS平台软件要解决的关键问题之一。文章探讨了几种常见的多媒体信息存储管理方法的机制与特点,并对其进行了对比研究,分析了不同存储管理方法的优缺点,为GIS工程实施过... 相似文献
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杜清运 《武汉大学学报(信息科学版)》1998,(4)
在分析传统地理信息系统理论主要缺陷的基础上,将语言学引入地理信息系统,提出了数字环境下空间信息结构与表达的认识模型——空间信息的语言学模型,探讨了空间信息的语言学特征,主要是语言单位、语法及语义机制,并就其对地理信息系统各环节特别是空间信息的智能化数据处理所产生的影响进行了讨论。 相似文献
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GIS网格体系结构探讨 总被引:21,自引:3,他引:18
于雷易 《武汉大学学报(信息科学版)》2004,29(2):153-156
就当前WebGIS发展中的空间资源共享问题,结合新兴的网格技术,从网格的角度提出了包括基础网格、空间数据网格、空间信息网格(狭义)、空间知识网格和空间服务网格在内的GIS网格体系,以期改善Internet上空间资源共享的环境。 相似文献
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Falguni Mukherjee 《制图学和地理信息科学》2018,45(6):556-569
Government organizations in the developing world have been at the forefront of ongoing reforms that have prompted their use of GIS and other information and communication technologies for urban governance. However, there have been very few examinations of GIS spatial knowledge construction in a non-Western context. Particularly, very little is known about the growing and varying use of GIS and spatial information by urban local bodies in India in the midst of India’s changing urban governance culture. This article presents an in-depth examination of Surat Municipal Corporation (SMC), one of India’s leading urban local bodies as the corporation implements e-governance strategies including the use of GIS and spatial information. Drawing from Critical GIS literature and GIS implementation and diffusion literature, this article uses an integrated approach to examine SMC’s GIS spatial knowledge construction. The article demonstrates that in the case of SMC, GIS knowledge construction is not only shaped by SMC’s proactive role in positioning itself with the national government’s priorities and agendas, but also by the presence of powerful actors who play an instrumental role in introducing change and innovation. This article is part of a larger project that aims to investigate the process of GIS spatial knowledge construction situated in contemporary India. 相似文献
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Steffen Vogt 《地球空间信息科学学报》2001,4(2):40-46
1 IntroductionKingGeorgeIsland (SouthShetlandIslands,Antarctica)isoneofthemostdenselypopulatedar easinAntarctica .Permanentstationsofninediffer entnationsandanairstripsuitableforhugeair craftsarelocatedonitsicefreeareas.Theseareascompriselessthan 5%oftheisl… 相似文献
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Seamless integration of spatial statistics and GIS: The S-PLUS for ArcView and the S+Grassland Links
Shuming Bao Luc Anselin Doug Martin Diana Stralberg 《Journal of Geographical Systems》2000,2(3):287-306
The extension of the functional capacity of geographic information systems (GIS) with tools for statistical analysis in general
and exploratory spatial data analysis (ESDA) in particular has been an increasingly active area of research in recent years.
In this paper, two operational implementations that combine the functionality of spatial data analysis software with a GIS
are considered more closely. They consist of linkages between the S-PLUS software for data analysis and two different GIS implementations, the ArcView desktop system, which is mostly vector-oriented, and the primarily raster-based Grassland open GIS environment. We emphasize conceptual and technical issues related to the software implementation of these approaches
and suggest future directions for linking spatial statistics and GIS.
Received: 14 January 1999 / Accepted: 11 May 1999 相似文献
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GIS, with their predominantly visual communication of spatial information, may appear to have little to offer people with visual impairments or blindness. However, because GIS store and manage the spatial relations between objects, alternative, non-visual ways to communicate this information can be utilized. As such, modified GIS could provide people with visual impairments access to detailed spatial information that would aid spatial learning, orientation, and spatial choice and decision making. In this paper, we explore the ways that GIS have been, and might be, adapted for use by people with visual impairments or blindness. We review current developments, report upon a small experimental study that compares the ability of GIS-based and various adaptive technologies to communicate spatial information using non-visual media, and provide an agenda for future research. We argue that adapted GIS hold much promise for implicitly improving the quality of life for visually impaired people by increasing mobility and independence. 相似文献
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在收集亚东_格尔木地学断面剖面地质图、地球物理解释图和综合解释图件等的基础上 ,首先针对断面的特点进行总体设计 ;然后进行主题、层和实体的划分及编码 ;最后利用GIS平台进行矢量化 ,完成空间数据库和属性数据库的建立 ,从而建立亚东_格尔木地学断面GIS的初步模型。 相似文献
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采用GIS空间信息可视化技术与科学的项目管理理论相结合的研究方法,并应用地理信息可视化技术、WebGIS技术和三层架构技术,针对大型企业级GIS项目管理信息系统建设进行了研究,开发出了基于GIS的项目管理系统。实现了对企业级地理信息等领域的项目信息化整体管理,这些管理包括市场信息管理、合同管理、财务管理、人力资源管理和设备管理等。论文着重分析了位置查询和可视化表达的实现过程,为企业高效管理、正确决策提供了一定支撑。 相似文献
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This paper integrates genetic algorithm and neural network techniques to build new temporal predicting analysis tools for
geographic information system (GIS). These new GIS tools can be readily applied in a practical and appropriate manner in spatial
and temporal research to patch the gaps in GIS data mining and knowledge discovery functions. The specific achievement here
is the integration of related artificial intelligent technologies into GIS software to establish a conceptual spatial and
temporal analysis framework. And, by using this framework to develop an artificial intelligent spatial and temporal information
analyst (ASIA) system which then is fully utilized in the existing GIS package. This study of air pollutants forecasting provides
a geographical practical case to prove the rationalization and justness of the conceptual temporal analysis framework. 相似文献
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空间统计分析与GIS在区域经济分析中的应用 总被引:71,自引:4,他引:67
首先概述了度量空间自相关、空间关联的一些空间统计分析方法以及识别区域空间关联的标准,然后探讨了将空间统计分析嵌入到一个GIS系统中的可行性,开发了一个分析空间关联的模块,并举例说明其在区域经济分析中的应用。 相似文献
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This paper integrates genetic algorithm and neural network techniques to build new temporal predicting analysis tools for geographic information system (GIS). These new GIS tools can be readily applied in a practical and appropriate manner in spatial and temporal research to patch the gaps in GIS data mining and knowledge discovery functions. The specific achievement here is the integration of related artificial intelligent technologies into GIS software to establish a conceptual spatial and temporal analysis framework. And, by using this framework to develop an artificial intelligent spatial and temporal information analyst (ASIA) system which then is fully utilized in the existing GIS package. This study of air pollutants forecasting provides a geographical practical case to prove the rationalization and justness of the conceptual temporal analysis framework. 相似文献
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Steffen Vogt 《地球空间信息科学学报》2013,16(2):40-46
The concept of the King George Island Expert GIS (KGI-XGIS) is introduced. KGI-XGIS is a combination of a rule-based expert system and a GIS meant to form an intelligent spatial decision support system. The system provides the spatial knowledge necessary for the environmental impact assessment process as dictated by the ‘Madrid Protocol’ for King George Island (South Shetland Islands, Antarctica). It also serves as information system to the scientific user community. Topographic maps, remote sensing data, thematic maps based on field surveys and other digital data form the input data to the GIS. Given the sparseness of the available data these must be combined and used in the most efficient way. Therefore expert knowledge of different domains will be coded into a rule-based expert system which is coupled to the GIS. To handle the expert knowledge and the spatial data of different types and different quality the KGI-XGIS incorporates knowledge-based techniques and fuzzy reasoning. The selection of a camp site on the ice free area of Fildes Peninsula and data quality management are used as two examples to demonstrate the capabilities of the system. 相似文献
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KING GEORGE ISLAND SPATIAL DATA MODEL 总被引:2,自引:0,他引:2
CHEN Nengcheng GONG Jianya 《地球空间信息科学学报》2001,4(2):63-69
1 IntroductionSpatialdistributionisthenaturalfeatureofgeo graphicinformation .Inthepastyears,duetolimi tationoftechnology ,communicationandhardware ,spatialdatacapturedfromdifferentregionhastobesaved ,managedandprocessedinthecentralplace .Asaresult ,spatiald… 相似文献
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This paper integrates genetic algorithm and neural network techniques to build new temporal predicting analysis tools for geographic information system (GIS). These new GIS tools can be readily applied in a practical and appropriate manner in spatial and temporal research to patch the gaps in GIS data mining and knowledge discovery functions. The specific achievement here is the integration of related artificial intelligent technologies into GIS software to establish a conceptual spatial and temporal analysis framework. And, by using this framework to develop an artificial intelligent spatial and temporal information analyst (ASIA) system which then is fully utilized in the existing GIS package. This study of air pollutants forecasting provides a geographical practical case to prove the rationalization and justness of the conceptual temporal analysis framework. 相似文献
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关于空间信息的哲学思考 总被引:9,自引:0,他引:9
地理信息系统的根本任务是分析和人间数据,提取传输空间信息,因此对空间信息的本的认识是至关重要的。本文指出,空间信息可具体地分为九类:空间位置、空间分布、空间形态、空间关系、空间统计、空间关联、空间对比、空间趋势、空间运动、认识空间信息的这内容有助于分析评价地理信息系统的设计和开发。 相似文献