We use slide window to approximate the data stream and propose two skyline query algorithms on data stream called CCS and PCS.

采用滑动窗口技术对数据流进行近似，提出了两种数据流上的轮廓查询方法：CCS算法和PCS算法。

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In order to improve the efficiency of filtering algorithms for time series data stream, this paper proposes a new more efficient streaming time series query filtering algorithm for DTW.

目的设计基于DTW的高效过滤算法，提高时间序列数据流的过滤查询的效率。

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