实值属性信息系统的三支决策模型及应用  

Three-way Decision Model and Application of Real-Valued Attribute Information System

作　　者：李德伦 谢宁新[2] 龚荣 LI Delun;XIE Ningxin;GONG Rong(School of Electronic Information,Guangxi Minzu University,Nanning 530006,China;School of Artificial Intelligence,Guangxi Minzu University,Nanning 530006,China)

机构地区：[1]广西民族大学电子信息学院,广西南宁530006 [2]广西民族大学人工智能学院,广西南宁530006

出　　处：《广西民族大学学报（自然科学版）》2022年第3期68-73,共6页Journal of Guangxi Minzu University ：Natural Science Edition

摘　　要：工程应用领域的数据往往可以转换成实值数据,目前的三支决策很少对实值属性信息系统进行研究,因此提出一种不同风险偏好下实值属性信息系统的三支决策模型。首先,利用距离来描述两个对象之间的关系,根据融合距离的数值分布选择合适的θ值来构建条件属性的容差关系,结合条件概率函数建立信息系统的三支决策模型;其次,根据不同的阈值α和β,得到适合不同风险偏好决策者的决策规则;最后,将该模型应用在储层损害类型的决策上,验证了其有效性和可行性。Data in the engineering application field can often be converted into real-valued data. The current three-way decision-making seldom studies the real-valued attribute information system,so a three-way decision model of the real-valued attribute information system under different risk preferences is proposed. First,the distance is used to describe the relationship between two objects,the appropriate value of θ is selected according to the numerical distribution of the fusion distance to construct the tolerance relationship of the conditional attribute,and the conditional probability function is combined to establish the three-branch decision model of the information system;Secondly,according to Different thresholds α and β obtain decision rules suitable for decision-makers with different risk preferences;Finally,the model is applied to the decision-making of reservoir damage types to verify the validity and feasibility of the model.

关 键 词：实值属性信息系统 三支决策 容差关系 风险偏好 

分 类 号：O159[理学—数学]