南京大学学报(自然科学版) ›› 2021, Vol. 57 ›› Issue (1): 130140.doi: 10.13232/j.cnki.jnju.2021.01.014
• • 上一篇
Jiawen Zheng1, Weizhi Wu1,2(), Han Bao1, Anhui Tan1,2
摘要:
粒计算模拟人类思考问题的自然模式是当今人工智能领域非常活跃的研究方向,在大数据挖掘和知识发现方面有独特的优势.针对多尺度决策系统的知识表示与知识获取问题,提出用信息熵角度研究多尺度信息系统的最优尺度选择问题.首先,定义多尺度信息系统的熵最优尺度与多尺度决策系统的广义决策熵最优尺度的概念;其次,讨论新提出的最优尺度概念与传统最优尺度概念之间的关系,证明在多尺度信息系统中传统的最优尺度与熵最优尺度是等价的;在协调多尺度决策系统中,证明传统的最优尺度与熵最优尺度也是等价的.而在不协调多尺度决策系统中,传统的最优尺度与熵最优尺度不等价,进而引入广义决策熵最优尺度,并证明广义决策最优尺度与广义决策熵最优尺度是等价的.
中图分类号:
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