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FCNet: Fully Complex Network for Time Series Forecasting
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AI
DOI：10.1109/JIOT.2024.3449903.png)
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摘要
En 中文
Time series forecasting (TSF) has extensive applications in domains, such as energy, traffic, and weather prediction. Currently, existing literature has designed many architectures that combine deep learning models in the frequency domain, and effective results have been achieved. However, handling complex-valued arithmetic poses a challenge for most frequency domain-based models. Additionally, features extracted solely in either the time or frequency domain are not comprehensive enough. To solve these problems, we propose a fully complex network (FCNet) in this work, where all network layers are adapted to handle complex-valued computations to simultaneously learn the information in the real and imaginary parts. First, we utilize time-frequency conversion to obtain time-frequency domain signals. And then we design the time-frequency filter-enhanced block to effectively capture global features from time-frequency signals. Finally, we design the complex-valued time-frequency Transformers Block, which separately extracts information from the time and frequency domains. Experimental evaluations on eight data sets from five benchmark domains demonstrate that our model significantly outperforms state-of-the-art methods in TSF. Code is available at https://github.com/ZHU-0108/FCNet-main.
Keyword:
Time-frequency analysis
Time series analysis
Feature extraction
Forecasting
Predictive models
Transformers
Deep learning
Complex network
time series forecasting (TSF) time-frequency conversion
time-frequency domain
期刊
IF:
8.9
论文数:
1.4W
被引数:
7.8W
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