| 地图内容质量特征和数量特征概括的数学模型 |
| |
| 引用本文： | 钟业勋,郑红波.地图内容质量特征和数量特征概括的数学模型[J].测绘科学,2006,31(6):52-53. |
| |
| 作者姓名： | 钟业勋 郑红波 |
| |
| 作者单位： | 广西测绘局,南宁,530023;广西师范学院资源与环境科学学院,南宁,530001;浙江工业大学信息工程学院,杭州,310032 |
| |
| 摘 要： | 在分类的定义下,根据概念外延的包含关系,给出了质量特征概括的数学模型。在定义数量的基础上,推导出级距概念,并根据两个不同级距的偏序集中大级距子集包含多个小级距子集的关系,给出了数量特征概括的数学模型。本文给出的地物质量特征和数量特征概括的数学模型,可对地图编制过程中诸如随地图比例尺缩小而缩减分类,扩大级差等经验事实,作出定量的描述和理论阐释。
|
| 关 键 词： | 概念外延 质量特征概括 数量 偏序集 数量特征概括 |
| 文章编号： | 1009-2307(2006)06-0052-02 |
| 收稿时间： | 2006-02-07 |
| 修稿时间： | 2006年2月7日 |
The mathematical model on map content generalization of qualitative and quantitative character |
| |
| ZHONG Ye-xun,ZHENG Hong-bo.The mathematical model on map content generalization of qualitative and quantitative character[J].Science of Surveying and Mapping,2006,31(6):52-53. |
| |
| Authors: | ZHONG Ye-xun ZHENG Hong-bo |
| |
| Abstract: | Based on classification and included relation of concept extension,the authors give the mathematical model of quality character generalization.On the basis of quantity definition they induce the grade distance concept.Then according to the included relation that the big grade distance includes the small grade distances in two partial-ordering sets, they give the map content generalization mathematical model of quantitative character. |
| |
| Keywords: | concept extension quality character generalization quantity partial-ordering set quantity character generalization |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
