为提高不确定时间序列的查询效率,在对不确定时间序列数据集进行建模的基础上,提出由不确定时问序列向确定时间序列的3种规约方法,分别为频率最大法、混合规约法和均值法,并给出具体的规约过程。实验结果表明,上述3种规约方法能减少时间序列的不确定性.为其相似性匹配。搜索查询操作提供依据。
In order to improve the uncertainty of time sequence query efficiency, on the base of uncertainty time series data set modeling, this paper presents three kinds of specification method from uncertain time series to certain time series, including probability maximum method, mixed specification method and mean value method, and gives specification process. Experimental result shows that three kinds of specification method can reduce the uncertainty of the time series, provide basis for its similarity matching, search and query operation.