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规则获取

规则获取的相关文献在1991年到2022年内共计162篇,主要集中在自动化技术、计算机技术、经济计划与管理、机械、仪表工业 等领域,其中期刊论文104篇、会议论文7篇、专利文献62108篇;相关期刊63种,包括系统工程学报、中国工程科学、集成技术等; 相关会议7种,包括2016年全国设备监测诊断与维护学术会议、第十五届全国设备故障诊断学术会议、第十七届全国设备监测与诊断学术会议、2016年全国设备诊断工程会议、第八届全国设备与维修工程学术会议暨第十三届全国设备监测与诊断学术会议、2005全国博士生学术论坛——机械工程等;规则获取的相关文献由314位作者贡献,包括安利平、单军、尹纪龙等。

规则获取—发文量

期刊论文>

论文:104 占比:0.17%

会议论文>

论文:7 占比:0.01%

专利文献>

论文:62108 占比:99.82%

总计:62219篇

规则获取—发文趋势图

规则获取

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    • 梁艳玲; 唐孝; 古睿
    • 摘要: 在现实应用中,区间值数据会因为测量、干扰或信息传输等噪声影响导致数据出现缺失值,而且这些数据随着时间推移呈现动态递增趋势,忽略或删除这些数据很有可能导致有用信息的丢失而出现决策误判。为此,针对这一问题,提出面向不完备区间值决策系统的三支决策模型和增量式规则获取算法。首先定义不完备区间值数据的量化相似容差关系,构造出基于不完备区间值决策系统的三支决策模型;其次从两个层级分析对象集动态规则获取策略,提出增量式规则获取算法;最后,通过一组UCI数据集对该算法进行验证。实验结果表明,该算法不仅能减少误划分损失获得更高的划分精度,而且在运行时间上也具有较大优越性。
    • 邓大勇; 吴越; 刘月铮
    • 摘要: 概念漂移是数据流挖掘的一个研究热点与难点,判断认知收敛是研究盲区.粗糙集已被应用于概念漂移探测,但存在适应性问题,缺少增量式概念漂移的相关研究.针对上述问题,运用粗糙集理论,从单条决策规则和整体决策系统的角度出发,引入决策优势函数与漂移度,对增量式概念漂移的适应与认知收敛问题作了较为深入的研究,提出一种基于决策支持度阈值的增量式规则更新算法.理论分析与仿真实验表明:新算法在适应概念漂移和学习新知识时较其他算法更为敏感且高效,对概念飘移的研究策略有效可行.
    • 任睿思; 魏玲; 祁建军
    • 摘要: 规则提取是三支概念分析中的一个重要问题.首先,基于属性导出三支概念,定义了两种三支类背景,即三支条件类背景和三支决策类背景,给出了类背景上的类概念并且研究了类概念的结构.其次,讨论了三支决策类背景上的类概念与三支弱协调决策形式背景上的属性导出三支概念之间的关系.然后,提出了三支决策类背景上的规则获取方法,并且通过比较证明了基于三支类背景获取的规则优于基于三支弱协调决策形式背景获取的规则.最后,利用三支条件类背景给出了反向规则与双向规则的获取方法.
    • 赵凡; 魏玲
    • 摘要: Based on uncertainty decision problems,D-type probabilistic decision formal context was proposed.On this probabilistic decision formal context,a new operator "△" was defined,the probabilistic concepts were obtained and the corresponding concept lattice was constructed.Then we defined the consistence of D-type probability decision formal context and studied the rule acquisition on the consistent D-type probability decision formal context.Furthermore,by eliminating the redundant rules,the rules were simplified.Finally,the algorithms for generating the probability concept lattice and acquiring the decision rules were presented.%基于不确定性决策问题,提出一种D型概率决策形式背景,并针对D型概率决策形式背景定义“△”算子,获得概率形式概念,构造相应的概念格.又定义了D型概率决策形式背景的协调性,在协调的背景上进行规则获取.进一步,剔除冗余规则,简化规则集.最后,给出概率概念格生成及规则获取算法,以便于计算机的实现.
    • 陈静雯; 马福民; 张腾飞; 曾永钢
    • 摘要: Granular computing based rule acquisition algorithms remedy the defects of rule acquisition algorithms to some extent. However, most of these algorithms can merely deal with categorical data. To further process the numerical or mixed data from the perspective of multi-granularity and multi-level, the neighborhood multi-granularity rough set model is adopted. Through calculating neighborhood multi-granularity condition granules and decision granules, the redundancy relation of condition granules in the process of rule acquisition is analyzed, and thus the redundant condition granules are further pruned. A rule acquisition algorithm for neighborhood multi-granularity rough set based on maximal granule is developed. The validity and superiority of the proposed algorithm are demonstrated by theoretical analysis and comparable experiments.%基于粒计算的规则获取在一定程度上弥补规则获取算法的缺陷,然而大多数算法仅适用于处理名词型数据.为了从多粒度、多层次的角度处理数值型或混合型数据,基于邻域多粒度粗糙集模型,通过计算邻域多粒度条件粒与决策粒,分析条件粒在规则获取过程中的冗余关系,进而通过剪枝规则获取过程中的冗余条件粒.在此基础上,设计较高效的基于最大粒的悲观邻域多粒度粗糙集规则获取算法.通过理论分析与实例对比验证算法的有效性和优越性.
    • 徐久成; 董婉; 王煜尧
    • 摘要: In order to improve the precision and retrieval speed of image retrieval in the image database,an image semantic retrieval method based on multi-granularity division is proposed in this paper.Firstly,an image information table is built according to the image database and annotation words.Secondly,an improved rule acquisition algorithm based on multi-granularity is proposed to extract the rule sets of the image information table,the database is divided into different image sets according to the object sets divided by rule sets,and image semantic feature index is established.And then,the image retrieval algorithm based on knowledge granule and the similarity measurement based on connotation importance are proposed.Finally,simulation experiments are carried out with images of the testing image database which are chosen from the Corel image database,the results show that the proposed method can improve efficiency of image retrieval effectively.%为了提高在图像数据库中图像检索的准确性和检索速度,提出一种基于多粒度划分的图像语义检索方法.首先,根据图像数据库和语义标注词构建图像信息表;其次,使用改进的多粒度规则提取方法提取图像信息表的规则集,根据规则集对应的对象集将图像数据库划分为不同的图像粒集,建立图像语义特征索引;然后,提出了基于内涵重要度的图像相似性度量公式和基于知识粒的图像语义检索算法;最后,用Corel图像库中的图像作为测试图像库进行仿真实验,结果表明该方法有效地提高了图像的检索效率.
    • 尚晓慧; 闫继雄; 陈泽华
    • 摘要: 传统的决策表规则提取需先进行属性约简再进行值约简,过程中存在大量冗余计算,并且当数据包含一定不确定性时效果不佳.为此,提出一种最简规则获取方法,将属性约简与值约简过程合二为一,使用变精度粗糙集模型,从属性多粒度的角度分析,按粒度的大小将决策表转换成不同的知识空间,并利用矩阵简单直观的特点,在不同的知识空间内定义粒矩阵、粒关系矩阵等概念,通过充分挖掘隐含在β粒关系矩阵中的启发式信息Sω,确定属性约简顺序,实现对不同粒度知识空间下最简规则的快速获取;设置覆盖率α为终止条件,以概率方法加快算法收敛速度.最后,从实例分析以及与现有算法进行UCI测试对比两方面对算法进行了验证,实验结果证明了所提算法的正确性与有效性.%Traditional algorithm extraction rules by attribute reduction and attribute values re-duction.There is a lot of redundant computation in the process and the result is not good when the data contains noise.Thus,the variable precision rough set model is used to acquire the rules of decision and attribute reduction and value reduction process are combined in this paper.The decision table is granulated into different granular spaces from fine to coarse in the perspective of attribute multi-granulation.By defining granular matrix,βgranular relation matrix,as well as mining the heuristic information Sωhidden in theβmatrices to determine the order of attribute re-duction,the rules in different granular space are acquired.By defining the concept of coverageα, the convergence speed of the algorithm is accelerated by the method of probability.Finally,the proposed algorithm is illustrated by an example and verified by UCI test set,proving the validity and effectiveness of the proposed algorithm.
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