模式识别与人工智能
模式識彆與人工智能
모식식별여인공지능
Moshi Shibie yu Rengong Zhineng
2015年
6期
507-512
,共6页
谭安辉%李进金%陈锦坤%林国平
譚安輝%李進金%陳錦坤%林國平
담안휘%리진금%진금곤%림국평
粗糙集%信息系统%属性约简%图%支配集%信息熵
粗糙集%信息繫統%屬性約簡%圖%支配集%信息熵
조조집%신식계통%속성약간%도%지배집%신식적
Rough Set%Information System%Attribute Reduction%Graph%Dominating Set%Information Entropy
探讨粗糙集的属性约简和图的支配集问题之间的联系。通过构造信息系统,将粗糙集的属性约简问题与图的支配集问题相联系,从而把图的支配集问题转化为粗糙集的属性约简问题。首先证明图的极小支配集恰是其构造的信息系统的属性约简,然后提出一种基于信息熵的最小支配集算法,最后通过实例验证该算法的可行性和有效性。
探討粗糙集的屬性約簡和圖的支配集問題之間的聯繫。通過構造信息繫統,將粗糙集的屬性約簡問題與圖的支配集問題相聯繫,從而把圖的支配集問題轉化為粗糙集的屬性約簡問題。首先證明圖的極小支配集恰是其構造的信息繫統的屬性約簡,然後提齣一種基于信息熵的最小支配集算法,最後通過實例驗證該算法的可行性和有效性。
탐토조조집적속성약간화도적지배집문제지간적련계。통과구조신식계통,장조조집적속성약간문제여도적지배집문제상련계,종이파도적지배집문제전화위조조집적속성약간문제。수선증명도적겁소지배집흡시기구조적신식계통적속성약간,연후제출일충기우신식적적최소지배집산법,최후통과실례험증해산법적가행성화유효성。
The relationship between attribute reduction problem in rough sets and dominating set problem in graph is discussed. By constructing an information system, the attribute reduction problem in rough sets is associated with the dominating set problem in graph, so as to transformed the dominating set problem into the attribute reduction problem. Firstly, it is proved that the minimal dominating set of a graph is exactly the attribute reduction of the constructed information system. Then, a minimum dominating set algorithm based on information entropy is proposed. Finally, A practical example illustrates the feasibility and efficiency of the proposed algorithm.