Vague相似度量与Vague熵

德国数学家G.Contor于19世纪创建了经典集合论,集合中的元素只能在{0,1}中取值,无法处理具有模糊性和不确定性的信息和数据。Zadeh于1965年提出了模糊集合论,将集合中的元素定义在[0,1]区间中取值,为我们描述世界提供了一个更符合实际的方法和工具。1993年Gau和Buehrer提出了Vague集的概念(与Atanassov提出的直觉模糊集的概念相同)将集合中元素的取值定义为[0,1]中的一个子区间,进一步加强了对客观世界描述的真实程度。Vague集是一个有着广泛应用前景的理论,目前国外已有些学者将此技术

Similarity Measures and Entropy for Vague Sets

The paper draws comparison and analysis among present similarity measure methods in the case of similari-ty measures between Vague values, provides a new similarity measure method, of which discusses on the normalcharacteristics, gives some relative character theorems. At the same time, it analyzes the application of fuzzy similari-ty measures in vague similarity measures and gives its normal forms such as similarity measures between Vague sets,between elements and their weighted similarity measures. Finally, vague entropy rule respectively aiming at twokinds of cases is approached and its corresponding vague entropy expressions is provided. The content of this paper isof practical significance in such fields as fuzzy decision-making, vague clustering, pattern recognition, data miningetc.