搜索结果: 1-7 共查到“Rough Sets”相关记录7条 . 查询时间(0.043 秒)
2017年数据动态模型粗糙集:模型与应用专题会议(Special Session on Rough Sets in Dynamics of Data: Models and Application)
2017年 数据动态模型粗糙集 模型 应用 专题会议
2017/6/23
Rough set theory (RST) has been applied successfully to data analysis and data mining. For example, it has been applied to bioinformatics, economics and finance, medicine, multimedia, web and text min...
Uncertainties in Remote Sensing Information Appraise Based on Theory of Rough Sets
Uncertainty Rough Sets Remote Sensing ImageCclassification Measure
2015/12/3
In the remote sensing data not only have radiation error and geometry error, need geometry correction and radiometric correction, but most of them also have “same object different spectrum”and”same sp...
A new fuzzy rough sets based on fuzzy coverings
Rough set Fuzzy covering Fuzzy covering information system Homomorphism Attribute reduction
2012/4/17
This paper provides further study on fuzzy coverings based rough sets. We first present the notions of the lower and upper approximation operators based on fuzzy coverings and derive their basic prope...
A rough sets partitioning model for incremental mining of sequential patterns in large databases
data mining incremental mining Sequential patterns
2010/9/26
Frequent sequential patterns mining finds intresting event sequences from various real world databases under study. However, most of real world databases are subject to updations with advancement of t...
商集统计Rough sets及其医学辅助诊断模式
粗糙排斥 容假度 诊断模式
2009/7/10
在医学上没有正确的诊断,就没有正确的治疗。针对收集的确诊病例多,因假阳性或假阴性等造成误诊和漏诊的情况,以及根据诊断匹配时的要求不同,提出一种基于商集统计Rough sets 的医学辅助诊断模式。通过对数据测试表明,该模式是可行有效的,是一种能根据临床需要进行辅助诊断的方案。
基于Rough Sets的中医指症挖掘研究与应用
属性约简 中医指症 数据挖掘
2009/6/24
针对中医病历数据库中指症样本维数较大、数据特征和属性冗余量较多等特征,在对Rough Sets基本理论和属性约简算法研究的基础上,提出了将属性频度和属性重要性相结合的GENRED_GROWTH中医指症挖掘算法,并进行了基于GENRED_GROWTH的中医指症挖掘原型系统设计与实现。通过分析和实验结果表明:该算法能较好地进行中医指症属性约简,分类精度较高,并且能抽取中医指症相关诊断规则以辅助医生的诊...
基于粗糙集与支持向量机的禽蛋蛋壳无损检测(Nondestructive Testing of Eggshell Based on Rough Sets and Support Vector Machine基于粗糙集与支持向量机的禽蛋蛋壳无损检测 Nondestructive Testing of Eggshell Based on Rough Sets and Support Vector Machine)
蛋壳 无损检测 支持向量机
2009/5/22
针对当前禽蛋蛋壳无损检测系统存在检测精度不高的问题,提出粗糙集和支持向量机相结合的方法进行分类器的设计。首先,基于粗糙集理论对特征参数集进行属性约简,在约简过程中,利用模糊C均值聚类算法对特征参数进行量化,并基于属性重要性的启发式搜索对条件属性进行约简;然后,在属性约简的基础上完成支持向量机分类器的训练,在训练过程中,通过交叉验证法对分类器模型参数进行了优化。实验结果表明该方法的分类准确率能够达到...