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面向地理特征的制图综合指标体系和知识法则的建立与应用研究 被引量:16
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作者 齐清文 姜莉莉 《地理科学进展》 CSCD 北大核心 2001年第S1期1-13,共13页
本文以地球系统科学、地球信息科学和现代地图学的理论、方法和技术为指导,系统地研究和建立了面向地理特征的制图综合的指标体系和知识法则,并进行了实例应用分析。研究方法是采用地学分析和归纳、地图分析、专家咨询、GIS和遥感空... 本文以地球系统科学、地球信息科学和现代地图学的理论、方法和技术为指导,系统地研究和建立了面向地理特征的制图综合的指标体系和知识法则,并进行了实例应用分析。研究方法是采用地学分析和归纳、地图分析、专家咨询、GIS和遥感空间分析等方法来总结、提炼和建立制图综合的指标体系和知识法则。指标类型包括数据指标、文字说明指标、图形指标3种,共分数据库概括(即语义概括)和地图可视化概括(即图形概括)两类。知识法则在横向由几何性知识、结构性知识、过程性知识构成,在纵向按照地物的地理特征描述性知识、操作项选择知识规则、算法选择知识规则、面向专门地理要素和制图综合知识规则、面向区域制图综合的知识规则等过程和方面来组织和分类。在知识库中则按照概括条件、概括行为和概括要求(或概括水平)3个变量来组织,形成三维坐标关系的知识法则内部体系。在实例分析中阐述了珠江三角洲经济区的交通网络图的制图综合过程和结果。 展开更多
关键词 地理特征 制图综合 指标体系 知识法则
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基于知识的物料传送系统的控制模式
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作者 刘复岩 吕韶义 《机器人》 EI CSCD 北大核心 2001年第S1期681-683,687,共4页
本文讨论作者开发的一个基于知识的机器人物料传送仿真系统 ,其中利用知识法则对传送机器人的控制模式进行转换 ,使系统在输入零件速率随机变动的情况下 ,能自动工作于输出零件流为最大的优化工作状态 ,从而实现对物料传送系统的自动寻... 本文讨论作者开发的一个基于知识的机器人物料传送仿真系统 ,其中利用知识法则对传送机器人的控制模式进行转换 ,使系统在输入零件速率随机变动的情况下 ,能自动工作于输出零件流为最大的优化工作状态 ,从而实现对物料传送系统的自动寻优控制 .文章阐述了利用仿真实验获取系统有关知识和建立知识库的方法 ,同时通过对该系统的动画仿真研究 。 展开更多
关键词 知识法则 优化控制 控制模式 仿真 机器人
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Method and Application of Comprehensive Knowledge Discovery
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作者 SHAZongyao BIANFuling 《Geo-Spatial Information Science》 2003年第3期48-55,共8页
This paper proposes the principle of comprehensive knowledge discovery. Unlike most of the current knowledge discovery methods, the comprehensive knowledge discovery considers both the spatial relations and attributes... This paper proposes the principle of comprehensive knowledge discovery. Unlike most of the current knowledge discovery methods, the comprehensive knowledge discovery considers both the spatial relations and attributes of spatial entities or objects. We introduce the theory of spatial knowledge expression system and some concepts including comprehensive knowledge discovery and spatial union information table (SUIT). In theory, SUIT records all information contained in the studied objects, but in reality, because of the complexity and varieties of spatial relations, only those factors of interest to us are selected. In order to find out the comprehensive knowledge from spatial databases, an efficient comprehensive knowledge discovery algorithm called recycled algorithm (RAR) is suggested. 展开更多
关键词 comprehensive knowledge discovery knowledge discovery algorithm spatialassociation rule knowledge expression system data mining
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Challenges and Strategies for Courtroom Interpreter: A Case Study
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作者 GAO Lu-lu YANG Ning 《Sino-US English Teaching》 2015年第12期975-978,共4页
Courtroom interpreting has now attracted more attentions due to the fast growth of interpreting as a profession and the development of globalization. Courtroom interpreting is different from other interpreting modes i... Courtroom interpreting has now attracted more attentions due to the fast growth of interpreting as a profession and the development of globalization. Courtroom interpreting is different from other interpreting modes in that it involves both legal knowledge and interpreting capability. Misinterpreting in courtroom can pose a threat to the human rights and sometimes can be a matter of life and death. This paper discusses some common challenges faced by courtroom interpreters and proposes coping tactics guided by ethical principles 展开更多
关键词 courtroom interpreting CHALLENGES coping tactics
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Study on Implicit and Explicit Learning Theory in English Grammar Teaching
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作者 LIANG Rongxue 《International English Education Research》 2016年第12期47-50,共4页
The teachers use explicit learning in the traditional teaching of English grammar, which pays great attention to the master of grammar knowledge points. Nowadays, some English teachers excessively emphasize the import... The teachers use explicit learning in the traditional teaching of English grammar, which pays great attention to the master of grammar knowledge points. Nowadays, some English teachers excessively emphasize the importance of teaching grammar imperceptibly, but neglect to explain the rules of grammar. The diametrically isolation of implicit and explicit learning doesn't correspond with the English grammar teaching. So the teachers should combine the two learning styles in order to make the best use of them to teach English grammar. 展开更多
关键词 implicit learning explicit learning collaboration of implicit and explicit learning English grammar teaching
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Clustering: from Clusters to Knowledge
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作者 Peter Grabusts 《Computer Technology and Application》 2013年第6期284-290,共7页
Data analysis and automatic processing is often interpreted as knowledge acquisition. In many cases it is necessary to somehow classify data or find regularities in them. Results obtained in the search of regularities... Data analysis and automatic processing is often interpreted as knowledge acquisition. In many cases it is necessary to somehow classify data or find regularities in them. Results obtained in the search of regularities in intelligent data analyzing applications are mostly represented with the help of IF-THEN rules. With the help of these rules the following tasks are solved: prediction, classification, pattern recognition and others. Using different approaches---clustering algorithms, neural network methods, fuzzy rule processing methods--we can extract rules that in an understandable language characterize the data. This allows interpreting the data, finding relationships in the data and extracting new rules that characterize them. Knowledge acquisition in this paper is defined as the process of extracting knowledge from numerical data in the form of rules. Extraction of rules in this context is based on clustering methods K-means and fuzzy C-means. With the assistance of K-means, clustering algorithm rules are derived from trained neural networks. Fuzzy C-means is used in fuzzy rule based design method. Rule extraction methodology is demonstrated in the Fisher's Iris flower data set samples. The effectiveness of the extracted rules is evaluated. Clustering and rule extraction methodology can be widely used in evaluating and analyzing various economic and financial processes. 展开更多
关键词 Data analysis clustering algorithms K-MEANS fuzzy C-means rule extraction.
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地图编制与应用
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《中国地理科学文摘》 1998年第4期83-83,共1页
关键词 制图概括 地理特征 地图编制 知识法则 地理数据库 数据转换 地理学 技术手段 地理图 地理信息系统
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