基于规则知识的空间推理研究

在一般空间推理的基础上,提出了空间推理扩展,即基于规则知识的空间推理。该方法结合了人工智能的基本原理,继承并发展了空间推理的方法学,其推理过程建立在空间知识与模型集成的基础上,以规则知识为推理控制,因而更符合实际,具有更大的灵活性。实例验证了本方法的正确性。     

退耕精确监测及其在辅助决策中的应用研究

退耕还林是党和政府为改善我国西部地区脆弱的生态环境而实施的一项重大工程,投入大,周期长,各级政府党政领导人都很关注退耕后的实际成效。本文结合林业部门的具体退耕工作流程,介绍了对退耕还林工作进行精确监测的方法,提出了与具体退耕业务相结合的辅助决策应用、系统维护和数据更新模式,讨论了实现退耕精确监测的方法以及在政府辅助决策实际应用过程中的问题。     

基于Skyline的森林防火辅助决策系统的研建

森林防火是森林资源保护中的重要工作,利用三维GIS技术辅助决策是提高森林防火工作效率的一个有效手段。本文整合莆田市多年积累的森林防火专题数据,集成各种高分辨率航拍影像、数字高程模型、林班数据、基础数据等,基于Skyline三维软件平台,实现了森林防火资源管理、快速查询定位、作战指挥部署、火情态势模拟、灾后损失评估等功能,为莆田市林业部门建立了一个直观、可视化的三维森林防火辅助决策平台。     

基于面向对象知识表达的空间推理决策及应用

提出了一种基于面向对象知识表达的空间推理决策方法 ,该方法扩展了常规的GIS空间分析功能 ,使其建立在GIS空间分析与领域知识基础上。认为GIS空间分析与领域知识利用的结合需要建立统一的知识表达概念模型 ,通过将常规决策知识设计为决策知识类 ,将决策事实作为事实知识类处理 ,并由知识类的消息机制进行内部通讯 ,实现空间推理决策的智能化。在进行领域知识分析与知识分类的基础上 ,给出了领域知识类的层次结构组织图和知识类定义以及决策知识及事实知识的面向对象表达 ,最后给出了空间知识类的形成及空间推理决策过程。方法的实用性在实践中得到验证     

规划三维仿真辅助决策系统建设与研究

如何利用三维虚拟场景为规划管理服务一直是城市管理的热点问题,本文介绍了镇江规划决策系统建设的总体思路和实现的具体途径,为拓展测绘产品的应用领域和规划管理服务提供了新的思路.     

划界辅助决策系统

本文介绍了国家海洋局开发的划界辅助决策系统的功能、特点及关键技术,给出划界,介绍了实现方法。     

三维城市规划辅助决策系统建设方法研究

探讨了三维城市规划辅助决策系统建设的必要性,根据规划业务的实际需求和现有数据及软硬件资源,确定了系统的总体设计方案和具体功能模块,并进一步对主要功能的建设思路进行了详细阐述,旨在为系统开发人员提供重要参考依据。     

基于地理空间大数据的应急指挥辅助决策平台研究

现代社会已经进入了产生和使用地理空间大数据的时代。大数据作为当前已经在许多领域得到成熟应用并强劲发展的方法和技术,为指挥员充分利用海量战场地理空间环境信息进行高效决策提供了有益参考。本文在对应急指挥决策与空间大数据主要特征进行梳理的基础上,结合应急指挥辅助决策的空间信息需求,分析了建设地理空间大数据支撑下的智能应急指挥辅助决策平台需要考虑的关键问题,设计了辅助决策平台的技术架构,为建立新的基于地理空间大数据应急辅助指挥平台提供了思路。     

城市应急保障辅助决策系统的实现

城市应急保障决策系统为提升救援部门对紧急事件反应能力、信息处理能力提供强大保障和决策评估支持。在实际应急行动中,基于GIS的应急系统不但可以为指挥人员提供城市基本地理信息、专题信息,还可以针对不同任务提供空间分析、决策分析模块,并很好实现信息图表、三维等多种形式的表达。文中就构建此系统的关键技术和分析模型的实现进行了论述,并开发了应用系统对此进行了验证。     

基于三维GIS的城市规划辅助决策技术研究

三维GIS由于其直观逼真,表达能力强等特点,可有效辅助城市规划。本文研究了三维GIS应用于城市土地利用规划、城区建筑规划、道路规划等方面辅助决策的相关技术。基于相关技术研究成果,利用数字城市地理空间框架建设的数据成果,设计并实现了三维城市规划辅助决策支持系统,为城市规划工作提供辅助决策支持。     

基于人工神经元网络的空间知识表达与推理方法研究

分析了智能决策支持系统的结构,通过比较指出了基于符号的知识表达与推理方法的不足,阐述了基于神经网络的知识表达与推理的方法,并认为神经网络方法可作为智能空间决策支持系统中符号方法的替代或补充,并通过实例验证了基于神经网络的不确定空间知识表达与推理的有效性.     

防汛会商决策支持系统实现方法

防汛会商属于风险决策和群决策,本文基于决策支持理论,结合我国防汛指挥的实际情况,详细分析论证了当今的信息技术特点和应用前景,阐述了信息领域的网络技术、地理信息系统技术、数据仓库技术和人工智能等在防汛会商决策支持系统中的实际应用。概述了防汛会商决策支持系统的总体结构和实现思路。     

Spatial decision support system for home-delivered services

 We present a spatial decision support system for the non-profit sector, designed to assist planning in the area of home-delivered services such as meals on wheels. Using data collected from existing programs, current and forecasted demographic data, and a set of algorithmic tools, we provide a system for evaluating current meals on wheels facilities, and for making incremental facility location decisions that satisfy coverage and equity requirements. Received: 27 September 2000 / Accepted: 22 March 2001     

大气污染扩散模拟评价决策支持系统的研究与开发

大气污染扩散模拟评价决策支持系统将GIS技术与环境模型相结合集成应用于大气污染扩散评价中,不仅发挥了GIS在大气污染扩散评价中强大的空间信息可视化管理和分析功能,还能将环境模型的分析预测功能直观应用于对各类污染源的宏观与微观模拟表达,实现了对大气污染综合决策分析,为工程决策者和管理人员提供了一种强有力的决策支持方案.系...     

Spatial decision support applications based on three-dimensional city models

The basic mathematic models, such as the statistic model, the time-serial model, the spatial dynamic model etc., and some typical analysis methods based on 3DCM are proposed and discussed. A few typical spatial decision making methods integrating the spatial analysis and the basic mathematical models are also introduced, e.g. visual impact assessment, dispersion of noise immissions, base station plan for wireless communication. In addition, a new idea of expectation of further applications and add-in-value service of 3DCM is promoted. As an example, the sunshine analysis is studied and some helpful conclusions are drawn.     

Spatial decision support applications based on three-dimensional city models

The basic mathematic models, such as the statistic model, the time-serial model, the spatial dynamic model etc.,and some typical analysis methods based on 3DCM are proposed and discussed. A few typical spatial decision making methods integrating the spatial analysis and the basic mathematical models are also introduced, e.g. visual impact assessment, dispersion of noise immissions, base station plan for wireless communication. In addition, a new idea of expectation of further applications and add-in-value service of 3DCM is promoted. As an example, the sunshine analysis is studied and some helpful conclusions are drawn.     

The development of spatial decision support system tool for marine spatial planning

A major problem associated with marine spatial planning (MSP) involves the difficult and time-consuming practice of creating a scenario that encompasses complex datasets in near real time via the use of a simple spatial analysis method. Moreover, decision-makers require a reliable, user-friendly system to quickly and accessibly acquire accurate spatial planning information. The development of national spatial data infrastructure (NSDI), which links the spatial data of a nation’s many diverse institutions, may pave the way for the development of a tool that can better utilize spatial datasets, such as a spatial decision support system (SDSS). Thus, this project aimed to develop an SDSS for MSP and to evaluate the feasibility of its integration within the NSDI framework. The seaweed culture was selected as an example due to its economic and technological acceptance by traditional fishers. Additionally, a multi-criteria analysis was used to develop the tool. Furthermore, a feasibility evaluation of its implementation within the NSDI framework was conducted based on the Delphi method. The results of the assessment indicated that the SDSS can be incorporated into the NSDI framework by addressing the policy issue – one map policy, updating custodians’ decree and data, and improve the standard and protocol.     

Development of a GIS-based decision support system for assessing land use status

IntroductionAgriculturallandusepatternsandtheirchangesaretightlyrelatedwithagriculturepolicyandfoodsecurityissuesundergrowingfooddemand,assess mentofglobalclimatechangeimpactsonagricul ture,environmentalissuesduetotheintensificationofagriculturallandusessuchaswaterpollution,soildegradation,andrecentlywaterscarcityissues.Soasustainableandholisticplanningandmanage mentoflandresourcesshouldcombineallthesere latedinformationwithefficienttoolsforassessmentandevaluationinordertopermitbroad ,interact…     

Development of a GIS-based decision support system for assessing land use status

The objectives of this study are to assess land suitability and to predict the spatial and temporal changes in land use types (LUTs) by using GIS-based land use management decision support system. A GIS database with data on climate, topography, soil characteristic, irrigation condition, fertilizer application, and special socioeconomic activities has been developed and used for the evaluation of land productivity for different crops by integrating with a crop growth model—the erosion productivity impact calculator (EPIC). International food policy simulation model (IFPSIM) is also embedded into GIS for the predictions of how crop demands and crop market prices will change under alternative policy scenarios. An inference engine (IE) including land use choice model is developed to illustrate land use choice behavior based on logit models, which allows to analyze how diversified factors ranging from climate changes, crop price changes to land management changes can effect the distribution of agricultural land use. A test for integrated simulation is taken in each 0.1o by 0.1o grid cell to predict the change of agricultural land use types at global level. Global land use changes are simulated from 1992 to 2050.     

高铁大临设施用地复垦利用辅助系统的设计与实现

本文根据复垦利用流程及复垦业务功能需求,结合组件式GIS集成开发技术,基于VS2008与Arc En-gine平台,采用SQL Server 2005数据库设计并开发了高速铁路大临设施用地复垦利用辅助决策系统。该系统实现了复垦方向优化过程的自动分析、复垦利用参数的动态设定、复垦工程量及投资的自动计算,并在京沪高铁江阴制梁场得到应用,取得了良好的效果。