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Updated: Jan 15, 2026

Predicting the Effectiveness of Population Replacement Strategy Using Mathematical Modeling
Published on: July 4, 2007
Optimizing education resource allocation using grey model forecasting of school age populations.
Fei Pang1, Yingxu Li2, Guo Miao3
1School of Education Science, Hanshan Normal University, Chaozhou, 52041, China.
This study improves school-aged population forecasting using an enhanced Grey Model (GM) (1,1) with buffering and local regression. The new model offers superior accuracy for educational resource planning.
Area of Science:
- Demography
- Educational Planning
- Data Science
Background:
- Accurate forecasting of school-aged populations is crucial for effective educational resource allocation.
- Traditional forecasting models struggle with data volatility influenced by policy and environmental factors.
- Grey system theory provides a framework for modeling uncertain systems, but requires enhancement for complex population dynamics.
Purpose of the Study:
- To enhance the Grey Model (GM) (1,1) for more accurate school-aged population forecasting.
- To develop an integrated predictive framework capturing population dynamics amidst socioeconomic shifts.
- To inform data-driven strategies for optimizing educational resource allocation.
Main Methods:
- Optimized school-aged population data using a buffering operator to minimize policy and environmental interference.
- Integrated Locally Weighted Linear Regression to refine grey number calculations, improving fit for volatile data.
- Developed an enhanced GM(1,1) framework combining grey system theory with local regression techniques.
Main Results:
- The enhanced GM(1,1) model demonstrated significantly improved predictive accuracy compared to the traditional GM(1,1) model.
- Residuals were substantially reduced, e.g., from -14.462 to 0.399 in 2018, indicating superior trend-fitting.
- The model effectively captured evolving school-aged population trends during China's socioeconomic shifts (2013-2020).
Conclusions:
- The enhanced GM(1,1) model offers a more precise tool for school-aged population prediction.
- Findings support the development of scientifically grounded strategies for educational resource allocation.
- The study presents a novel methodological approach with theoretical and practical relevance for population forecasting and educational planning.
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