一种基于混合数据回归模型的pm2.5影响因素分析方法和系统

By constructing a hybrid data regression model, the problem of fusing functional and component data was solved, enabling the analysis of dynamic influencing factors of PM2.5 concentration and revealing the dynamic impact of industrial structure, economic level, and temperature on air quality.

CN122047706BActive Publication Date: 2026-07-17CAPITAL UNIV OF ECONOMICS & BUSINESS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CAPITAL UNIV OF ECONOMICS & BUSINESS
Filing Date
2026-01-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies struggle to effectively integrate functional and component data, making it impossible to comprehensively analyze the dynamic impacts of economic and natural factors on PM2.5 concentrations.

Method used

A mixed data regression model was established. Through equidistant logarithmic ratio transformation, function basis expansion, and iterative reweighted least squares method, a mixed data regression model was constructed with component data and numerical data as covariates and functional data as dependent variables. The dynamic impact of the proportion of the three industries, per capita GDP, and temperature on PM2.5 in various cities was analyzed.

Benefits of technology

It enables precise analysis of the dynamic influencing factors of PM2.5 concentration, revealing the dynamic impact of industrial structure, economic level, and temperature on air quality, and providing richer data analysis results.

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Abstract

本发明提供一种基于混合数据回归模型的pm2.5影响因素分析方法和系统,包括:建立协变量为成分数据和数值型数据、因变量为函数型数据的混合数据回归模型:,为城市的pm2.5浓度曲线,为函数型数据,为城市的一产、二产、三产占比,简称三产比例,为成分数据,为人均GDP的对数值,为平均温度,和为数值型数据,是一个待估的随时间变化的成分型系数,它在任意时刻分配给成分型协变量一个系数,,为待估的函数型系数,是函数型残差;基于等距对数比变换、函数基展开和迭代重加权最小二乘法,得到,,的稳健M‑估计;根据,,的估计值,分析各个城市的三产比例、人均GDP、平均温度对pm2.5的影响。本发明可以分析pm2.5影响因素。
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