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Application of uncertainty reasoning based on cloud model in time series prediction
1Institute of Command Automation, PLA University of Science and Technology, Nanjing 210007, China. jinchunzhang@sina.com.cn
Journal of Zhejiang University. Science
|September 6, 2003
Summary
This study introduces an uncertainty reasoning method for time series prediction, enhancing simple exponential smoothing by dynamically adjusting coefficients to capture trend changes. Experiments confirm its effectiveness across diverse datasets.
Area of Science:
- Computer Science
- Artificial Intelligence
- Data Science
Background:
- Time series prediction is crucial for forecasting in areas like meteorology and finance.
- Traditional methods like exponential smoothing often fail to adapt to changing trends due to fixed weights.
Purpose of the Study:
- To develop an adaptive time series prediction method.
- To improve the accuracy of simple exponential smoothing by incorporating dynamic trend adjustments.
Main Methods:
- Utilized an uncertainty reasoning approach based on the cloud model.
- Implemented a cloud logic controller to dynamically adjust the smoothing coefficient in simple exponential smoothing.
- Applied the method to various time series datasets for validation.
Main Results:
- The proposed cloud model-based method successfully adapted to current time series trends.
- Experimental results demonstrated the validity and improved performance over traditional methods.
- The dynamic adjustment of the smoothing coefficient significantly enhanced prediction accuracy.
Conclusions:
- The cloud model-based uncertainty reasoning offers a robust enhancement for time series prediction.
- This adaptive approach effectively addresses the limitations of fixed-weight methods.
- The technique shows promise for improving forecasting accuracy in diverse applications.