| 时序模式发现算法研究 |
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| 引用本文： | 蔡智,岳丽华,王熙法.时序模式发现算法研究[J].计算机研究与发展,2000,37(9):1107-1113. |
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| 作者姓名： | 蔡智 岳丽华 王熙法 |
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| 作者单位： | 中国科学技术大学计算机科学系,合肥,230027 |
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| 基金项目： | 国家自然科学基金资助!(项目编号 69675 0 16) |
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| 摘 要： | 针对时序数据 ,提出一种新的时序模式的逻辑表示法 ,通过分段线性表示法 ,将时序曲线拟合为线段序列 ,从而以相对应的线段的斜率反正切值序列作为模式的逻辑表示 .在此基础上 ,设计出时序模式发现算法 ,此算法能够自动地发现所有 (子 )模式 .有关实验结果证明算法是行之有效的 .
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| 关 键 词： | 知识发现 时序数据 时序模式 |
RESEARCH ON AN ALGORITHM FOR TIME-SERIES PATTERNS DISCOVERY |
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| CAI Zhi,YUE Li-Hua,WANG Xi-Fa.RESEARCH ON AN ALGORITHM FOR TIME-SERIES PATTERNS DISCOVERY[J].Journal of Computer Research and Development,2000,37(9):1107-1113. |
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| Authors: | CAI Zhi YUE Li-Hua WANG Xi-Fa |
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| Abstract: | In this paper, a new way for logic expression of time series patterns is presented for time\|series data. By a piecewise linear approximation, the data is modeled as sequence of straight lines and the sequence of arctg. (slope) is used as logic expression of time series patterns. In this way, a new algorithm for time series patterns discovery is presented. It can find all of the patterns or sub patterns automatically. The experiment results prove that the algorithm can be put into practice. |
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| Keywords: | knowledge discovery time series data time series patterns |
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