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A method of mining an air pollution propagation path

A propagation path, residual squared technology, applied in data mining, special data processing applications, instruments, etc., can solve problems such as no work

Inactive Publication Date: 2019-01-08
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, there is no related work to directly use data mining to analyze the causes of air pollution.

Method used

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  • A method of mining an air pollution propagation path
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  • A method of mining an air pollution propagation path

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0032] The used hardware equipment of the present invention has 1 PC machine;

[0033] Such as figure 1 As shown, the present invention provides a method of digging air pollution transmission paths.

[0034] Specifically include the following steps:

[0035] Step 1. Obtain the air pollution data set, and preprocess the data in the air pollution data set to obtain the preprocessed air pollution data set, and operate the air pollution data set in the following steps.

[0036] Step 1 specifically includes the following steps:

[0037] Step 1.1 uses the nearest distance to determine the filling method to fill in missing values, because the data in the air pollution dataset is time series data, and the influence of time factors on data changes is not obvious. Therefore, using the shortest distance to determine the fil...

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Abstract

The invention discloses a method for mining an air pollution propagation path. The method is oriented to atmospheric pollution multi-dimensional time series data, and provides a method for mining an air pollution propagation path through the air pollution multi-dimensional time series data. Granger causality test is used to mine the data with Granger causality, and then the causality among air pollution pollutants is mined to find the propagation path of air pollution. Compared with other methods, Granger causality test can reveal the intrinsic relationship between different pollutants in airpollution through the complexity of pollutant concentration changes and their interactions, and the pollutants with causality are extracted from the data.

Description

technical field [0001] This technology belongs to the field of air pollution, and mainly uses the method of data analysis to analyze the causes of pollution in the field of air pollution. Background technique [0002] In terms of pollution cause analysis, existing methods mainly use source apportionment based on physical and chemical analysis, such as the Environmental Protection Bureau and the Institute of Atmospheric Research, Chinese Academy of Sciences. Generally speaking, the main causes of air pollution are the total emission of pollutants (source intensity) and meteorological conditions such as atmospheric diffusion. However, in order to analyze the air quality of a specific day and the reasons for its changes, in addition to mastering the emissions of various pollution sources, it is necessary to understand the meteorological diffusion conditions (including the influence of local meteorology, mesoscale meteorology and even large-scale meteorological conditions), and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/2458G06Q50/26
CPCG06F2216/03G06Q50/26
Inventor 刘博苏鹏方
Owner BEIJING UNIV OF TECH
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