Method of Time Series Similarity Measurement Based on Dynamic Time Warping

• 作者: Huiling Jia Lianggui Liu Wei Li
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 工学
• 关键词: TIME SERIES PCA dimensionality reduction dynamic TIME WARPING HIERARCHICAL CLUSTERING cophenetic CORRELATION
• 年，卷（期）: 2018,（10）
• 页码范围: 97-106
• 页数: 10页
• 分类号: TP3

摘要

With the rapid development of mobile communication all over the world,the similarity of mobile phone communication data has received widely attention due to its advantage for the construction of smart cities.Mobile phone communication data can be regarded as a type of time series and dynamic time warping(DTW)and derivative dynamic time warping(DDTW)are usually used to analyze the similarity of these data.However,many traditional methods only calculate the distance between time series while neglecting the shape characteristics of time series.In this paper,a novel hybrid method based on the combination of dynamic time warping and derivative dynamic time warping is proposed.The new method considers not only the distance between time series,but also the shape characteristics of time series.We demonstrated that our method can outperform DTW and DDTW through extensive experiments with respect to cophenetic correlation.