| 一种新的时间序列线性拟合方法 |
| |
| 引用本文： | 谢福鼎,王赫楠,张永.一种新的时间序列线性拟合方法[J].计算机工程,2011,37(22):250-251. |
| |
| 作者姓名： | 谢福鼎 王赫楠 张永 |
| |
| 作者单位： | 1. 辽宁师范大学城市与环境学院,辽宁大连,116029
2. 辽宁师范大学计算机与信息技术学院,辽宁大连,116081 |
| |
| 基金项目： | 国家自然科学基金资助项目，辽宁省博士启动基金资助项目 |
| |
| 摘 要： | 提出一种新的时间序列线性拟合方法.通过判断连接相邻点所成线段的斜率变化,选择时间序列中的转折点,将这些点与时间序列的极值点合并作为关键点,利用这些关键点组成的序列拟合原时间序列.该线性拟合方法在剔除噪声的同时,能更精确地定位时间序列中的关键点.实验结果表明,与已有方法相比,该方法能近似表示原时问序列,且拟合后的时间序列...
|
| 关 键 词： | 时问序列 线性拟合 拟合误差 斜率 关键点 |
| 收稿时间： | 2011-05-19 |
New Linear Fitting Method for Time Series |
| |
| XIE Fu-ding,WANG He-nan,ZHANG Yong.New Linear Fitting Method for Time Series[J].Computer Engineering,2011,37(22):250-251. |
| |
| Authors: | XIE Fu-ding WANG He-nan ZHANG Yong |
| |
| Affiliation: | 1.School of Urban and Environmental Sciences,Liaoning Normal University,Dalian 116029,China;2.School of Computer and Information Technology,Liaoning Normal University,Dalian 116081,China) |
| |
| Abstract: | This paper proposes a new linear fitting method for time series.The turning points are picked up in terms of the slope changes of the adjacent point connections,and the set of key points of the time series is obtained by merging these points with extreme points.The method can not only eliminate the noise points,but also more precisely locate the key points of the series.Test results show the method can much better reflect the original time series.Comparing this method with the existed ones,the smaller fitting errors are achieved. |
| |
| Keywords: | time series linear fitting fitting error slope key point |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程》浏览原始摘要信息 |
|
点击此处可从《计算机工程》下载全文 |
|
