项目名称: 两类广义粗糙集的基本数学结构及其应用
项目编号: No.11461005
项目类型: 地区科学基金项目
立项/批准年度: 2015
项目学科: 数理科学和化学
项目作者: 李招文
作者单位: 广西民族大学
项目金额: 36万元
中文摘要: 模糊集和soft集描述了不同类型的不确定性,它们和粗糙集分别融合而得到的模糊粗糙集和soft粗糙集, 将知识粒度由等价类扩充为模糊化的集合类和参数化的集合类, 形成更强大的不确定性描述的数学工具, 使应用范围进一步扩大, 更有利于实际问题的解决。因此, 研究两类广义粗糙集(模糊粗糙集和soft粗糙集)对处理不确定性问题尤为重要。本项目拟利用粗糙集理论和soft集理论的最新研究成果, 使用一些数学方法, 力图探讨这两类广义粗糙集的拓扑结构、格结构、拟阵结构和信任结构等基本数学结构, 给出它们的刻划, 并探索将获得的成果应用到不确定决策、信息糸统、图论等实际问题中。
中文关键词: 模糊粗糙集;soft粗糙集;拓扑结构;格结构;拟阵结构
英文摘要: Fuzzy sets and soft sets describe the different types of uncertainty. Fuzzy rough sets and soft rough sets, the fusions of them and rough sets, expand knowledge granularity from equivalence classes to fuzzifying collections and parameterized collections, form a more powerful mathematical tool for uncertainty description and further enlarge the scope of applications. This is more advantageous to solve practical problems. So researching two types of generalized rough set (fuzzy rough sets and soft rough sets) for dealing with uncertainty problems is particularly important. This project intends to explore their basic mathematical structures such as topological structures, lattice structures, matroidal structures and belief structures so on, to give their depictions and to investigate that the research results are applied to uncertain decision, information systems, graph theory and other practical problems.
英文关键词: Fuzzy rough set;Soft rough set;Topological structure;Lattice structure;Matroidal structure