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【免费代码分享】基于CNN-BiLSTM-Attention 的时间序列预测

  • 2026-02-07 03:36:14
【免费代码分享】基于CNN-BiLSTM-Attention 的时间序列预测

本项目旨基于CNN-BiLSTM-Attention混合模型进行时间序列预测,并在Python的Jupyter Notebook平台上实现。具体而言,研究构建了一个深度融合卷积神经网络(CNN)、双向长短期记忆网络(BiLSTM)与注意力机制(Attention)的预测模型,系统对比了LSTM、BiLSTM、CNN-BiLSTM以及CNN-BiLSTM-Attention四种模型在时序预测任务中的表现。该工作通过多层次模型对比,着重分析不同结构对预测精度的影响,为复杂时间序列预测问题提供了兼具局部特征提取、长程依赖建模与关键信息聚焦的集成解决方案。

从模型结构来看,CNN-BiLSTM-Attention通过分层协同机制深入挖掘时序内在模式:首先,CNN层凭借卷积核的局部感知能力,在滑动窗口中自动提取序列中的短期关键特征,如局部趋势、周期片段与突变点,有效过滤噪声并增强特征表示;其次,BiLSTM层通过前向与后向LSTM同步捕捉当前时刻的历史与未来上下文信息,突破传统单向循环神经网络的局限,从而更全面地建模季节性、趋势性等长程依赖关系;最后,注意力机制动态计算各时间步特征的权重,使模型能够自主聚焦于对预测目标贡献显著的关键时刻,如峰值、异常事件或趋势转折点,并通过加权聚合进一步优化特征表征,提升重要信息的利用率。

该组合模型在预测性能与适用性上体现出显著优势:其一,CNN与BiLSTM在功能上互补,前者擅长局部模式提取,后者强于长程依赖建模,二者结合能同时捕捉时间序列的短期波动与长期演变;其二,注意力机制的引入增强了模型对长序列的处理能力,通过动态权重分配抑制噪声干扰,聚焦关键信息,从而提升预测的鲁棒性与解释性;其三,模型对电力负荷、金融波动、气象数据等非平稳、多尺度时序数据具有良好的适应性,在多个实际场景中均表现出更高的预测精度与稳定性。相关方法已在风电功率预测、结构健康监测、交通流量预测等领域的文献中得到广泛验证与应用,显示出其较强的实用价值与拓展潜力。

代码获取方式:此文章点赞+留言(自己的研究方向)+留言被点赞30次后台回复:免费代码分享直接免费获取!或扫描下方二维码直接购买

Training LSTM model... 
LSTM Mean Squared Error: 1.839458703994751 
Training BiLSTM model... 
BiLSTM Mean Squared Error: 1.724195122718811 
Training CNN-BiLSTM model... 
CNN-BiLSTM Mean Squared Error: 1.612446904182434 
Training CNN-BiLSTM-Attention model... 
CNN-BiLSTM-Attention Mean Squared Error: 1.5371288061141968

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  1. CONNECT:[ UseTime:0.000599s ] mysql:host=127.0.0.1;port=3306;dbname=f_mffb;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000827s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.100725s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.100765s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000859s ]
  6. SELECT * FROM `set` [ RunTime:0.100698s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000847s ]
  8. SELECT * FROM `article` WHERE `id` = 470157 LIMIT 1 [ RunTime:0.100799s ]
  9. UPDATE `article` SET `lasttime` = 1770442526 WHERE `id` = 470157 [ RunTime:0.390620s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.011494s ]
  11. SELECT * FROM `article` WHERE `id` < 470157 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.023382s ]
  12. SELECT * FROM `article` WHERE `id` > 470157 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.009699s ]
  13. SELECT * FROM `article` WHERE `id` < 470157 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.029445s ]
  14. SELECT * FROM `article` WHERE `id` < 470157 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.022284s ]
  15. SELECT * FROM `article` WHERE `id` < 470157 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.006648s ]
0.966918s