关键词: 特殊投影, 拟合数据, 聚类算法, 滑动窗口

Abstract:

The trend of data stream is analyzed based on monitoring data using a special projection clustering and fitting algorithm,which combines the pre-processing algorithms and sliding window technique.The bridge health monitoring simulation experiments are performed with fitting data of higher accuracy (segment R2 at distance close to 1,m=0.890 4＜0.5),thus solving the dimensionality reduction of high dimensional data stream,and reducing the data processing time with an increase in efficiency by 39.1% and a space occupation of only 6.7%.

Key words: special projection;fit the data;clustering algorithm;sliding window