Study on fast data stream indexing based on wavelet approximations
基于小波变换的数据流快速索引的研究

A new solution was proposed to summarize and index distributed data streams. The synopsis was abstracted by Discrete Wavelet Transform (DWT) on line and inserted to high-dimension indexing structure in order to reduce the overhead of network maintenance. Simulation shows that the method improves the query precision greatly and saves response time in pattern analysis and relation detection.