Similarity Measurement Method for Sub-Time Series with Different Length
Zhou Guang-qun · Computer Era · 2011
In order to effectively compute the similarity of the sub-time series with different length from one time series,we deeply research the content about similarity computation in time series,and propose a similarity measurement method for sub-time series with different length.Based on computing the piecewise slope of each relatively independent sub-time series,the method can get their variation tendency,and then complete similarity computing without the influence of time series length.The method achieves good result in the experiments on different data sets,and its characteristics of speediness,accuracy and not influenced by time series length are proved.