| 基于相似粗糙集的气象范例库的生成方法 |
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| 引用本文： | 季赛,袁慎芳,周淑琴,王水平. 基于相似粗糙集的气象范例库的生成方法[J]. 计算机工程与设计, 2007, 28(15): 3749-3751 |
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| 作者姓名： | 季赛 袁慎芳 周淑琴 王水平 |
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| 作者单位： | 南京信息工程大学,计算机科学与技术系,江苏,南京,210044;南京航空航天大学,智能材料与结构航空科技重点实验室,江苏,南京,210016;南京航空航天大学,智能材料与结构航空科技重点实验室,江苏,南京,210016;南京信息工程大学,计算机科学与技术系,江苏,南京,210044 |
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| 基金项目： | 教育部优秀人才支持计划 , 南京信息工程大学校科研和教改项目 |
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| 摘 要： | 基于范例推理的气象灾害预测领域,从气象数据库中提取出典型的源范例是首要的步骤,而获取高质量且无噪声干扰的气象范例,减少范例存储的时间和空间复杂度是其主要目标.提出了利用相似粗糙集进行气象范例提取的算法,通过简化相似天气的无向图,自动从原始天气数据中提取典型范例.该算法能较好的处理噪声的干扰,并能直接处理连续数值型属性,避免了复杂的属性离散化的计算.实验结果验证了算法的可行性和有效性.
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| 关 键 词： | 相似粗糙集 相似关系 范例推理 知识表达系统 无向图 |
| 文章编号： | 1000-7024（2007）15-3749-03 |
| 修稿时间： | 2006-08-30 |
Method of weather cases generation based on similarity rough set |
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| JI Sai,YUAN Shen-fang,ZHOU Shu-qin,WANG Shui-ping. Method of weather cases generation based on similarity rough set[J]. Computer Engineering and Design, 2007, 28(15): 3749-3751 |
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| Authors: | JI Sai YUAN Shen-fang ZHOU Shu-qin WANG Shui-ping |
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| Affiliation: | 1. Department of Computer Science and Technology, Nanjing University of Information Science and Technology, Nanjing 210044, China; 2. Aeronautic Science Key Laboratory for Smart Materials and Structures, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | Case selection from weather database is a key step in disaster weather forecasts based on CBR.The selection of representative weather cases without noise and reduces time and space complexity are its essential target.The SRS algorithm based on similarity-based rough set theory is proposed.By reducing undirected graph,it can selects a reasonable number of the typical cases from a large data set for future case-based reasoning tasks.It also can handle noise and inconsistent data.Experimental result has confirmed the algorithm feasibility and the validity. |
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| Keywords: | similarity-rough set similarity relation case-based reasoning information systems undirected graph |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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