时序数据的时均插值与规则提取研究

Time Equalized Interpolation and Rule Discovery in Time-Series Data

该文做了如下工作:提出了一种把RTTIS转化为TIS的时均插值方法,该方法是对犤4,5犦的推广与细化。它可根据客户的不同要求,采取不同的时间长度来进行转化,具有一定的灵活性和可操作性;对于如何将TIS转化为IS,在文献犤5犦的基础上,提出了一种“相对趋势增量法”,使得生成规则更能表达属性值的变化趋势;(3)运用Rough集理论对信息系统进行处理,生成相应的规则,并指出在规则集较庞大的情况下,可采用规则约简的方法加以解决。

This paper introduces the following contents:transforming real-time temporal information system to temporal information system,and according to requests of clients,adopting different time length to transform;transforming temporal information system to information system,presenting a relative increase method to draw the trend of attribute values;generating rules from information systems by Rough set theory,and pointing out some problems to be solved.