共查询到20条相似文献,搜索用时 62 毫秒
1.
基于规则知识的空间推理研究 总被引:5,自引:0,他引:5
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。 相似文献
2.
3.
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。 相似文献
4.
基于面向对象知识表达的空间推理决策及应用 总被引:7,自引:0,他引:7
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 相似文献
5.
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. 相似文献
6.
7.
吴探诗 《测绘与空间地理信息》2020,(2):132-134
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。 相似文献
8.
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。 相似文献
9.
10.
黄梦龙 《测绘与空间地理信息》2015,(12):165-167
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。 相似文献
11.
12.
防汛会商决策支持系统实现方法 总被引:1,自引:1,他引:0
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。 相似文献
13.
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 相似文献
14.
15.
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. 相似文献
16.
LIChaokui ZHUQing ZHANGYeting HUANGDuo ZHAOJie CHENSonglin 《地球空间信息科学学报》2004,7(2):135-143
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. 相似文献
17.
Dewayany Sutrisno Suzan Novtalia Gill Suseno Suseno 《International Journal of Digital Earth》2018,11(9):863-879
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. 相似文献
18.
IntroductionAgriculturallandusepatternsandtheirchangesaretightlyrelatedwithagriculturepolicyandfoodsecurityissuesundergrowingfooddemand,assess mentofglobalclimatechangeimpactsonagricul ture,environmentalissuesduetotheintensificationofagriculturallandusessuchaswaterpollution,soildegradation,andrecentlywaterscarcityissues.Soasustainableandholisticplanningandmanage mentoflandresourcesshouldcombineallthesere latedinformationwithefficienttoolsforassessmentandevaluationinordertopermitbroad ,interact… 相似文献
19.
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. 相似文献