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| 求粗糙集正域POSc(D)的表上作业法 | |
| 引用本文： | 张诚一,李固新,李玉俊. 求粗糙集正域POSc(D)的表上作业法[J]. 海南师范大学学报(自然科学版), 2005, 18(1): 1-7 |
| 作者姓名： | 张诚一 李固新 李玉俊 |
| 作者单位： | 1. 海南师范学院,数学系,海南,海口,571158 2. 河南驻马店教育学院,计算机系,河南,驻马店,463000 3. 河北省北方学院,数学系,河北,张家口,075000 |
| 基金项目： | 国家自然科学基金资助项目(60364001,70461001);海南省自然科学基金资助项目(80431) |
| 摘 要： | 给出了一种非常简洁的求POSC(D)的表上作业方法,此法不仅无须分别求出U/IND(C)和U/IND(D),而且省略了U/IND(C)和U/IND(D)之间的比较及求交的程序;最后,应用这一方法研究了评价和预测问题中各因素的合理赋权问题,对中国区域生态水平评价问题进行了权重挖掘,按照所得权重给出了新的评价结果. |
| 关 键 词： | 粗糙集 信息表 正域 表上作业法 |
| 文章编号： | 1671-8747(2005)01-0001-07 |
| 修稿时间： | 2004-11-12 |
The method for calculating the positive regions in rough sets by translating the decision tables |
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| ZHANG Cheng-yi,LI Gu-xin,LI Yu-Jun. The method for calculating the positive regions in rough sets by translating the decision tables[J]. Journal of Hainan Normal University:Natural Science, 2005, 18(1): 1-7 | |
| Authors: | ZHANG Cheng-yi LI Gu-xin LI Yu-Jun |
| Affiliation: | ZHANG Cheng-yi~1,LI Gu-xin~2,ZHANG Yu-Jun~3 |
| Abstract: | This paper gives a very compact method for calculating the positive regions POS_C(D) in rough sets by translating the decision tables.This method not only need not calculate U/IND(C) and U/IND(D),but also omits the comparatire and joint calculation between U/IND(C)and U/IND(D).Finally,we investigate the logicality of the evaluation of weighting in our research,giving a method to mine the weighting of judged factors from original statistic data and processing the weighting mining on the judgement of the region zoology level of China. |
| Keywords: | rough set decision table positive regions the method by translating the decision tables |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |