scholarly journals Evolving Differential evolution method with random forest for prediction of Air Pollution

2018 ◽  
Vol 132 ◽  
pp. 824-833 ◽  
Author(s):  
Rubal ◽  
Dinesh Kumar
Keyword(s):  
Air Pollution ◽  
Random Forest ◽  
Differential Evolution

scholarly journals A multi-step machine learning approach to assess the impact of COVID-19 lockdown on NO2 attributable deaths in Milan and Rome, Italy

2022 ◽  
Vol 21 (1) ◽  
Author(s):  
Luca Boniardi ◽  
Federica Nobile ◽  
Massimo Stafoggia ◽  
Paola Michelozzi ◽  
Carla Ancona
Keyword(s):  
Machine Learning ◽  
Land Use ◽  
Air Pollution ◽  
Random Forest ◽  
Citizen Science ◽  
Learning Approach ◽  
Machine Learning Approach ◽  
Forest Models ◽  
Random Forest Models ◽  
The Impact

Abstract Background Air pollution is one of the main concerns for the health of European citizens, and cities are currently striving to accomplish EU air pollution regulation. The 2020 COVID-19 lockdown measures can be seen as an unintended but effective experiment to assess the impact of traffic restriction policies on air pollution. Our objective was to estimate the impact of the lockdown measures on NO2 concentrations and health in the two largest Italian cities. Methods NO2 concentration datasets were built using data deriving from a 1-month citizen science monitoring campaign that took place in Milan and Rome just before the Italian lockdown period. Annual mean NO2 concentrations were estimated for a lockdown scenario (Scenario 1) and a scenario without lockdown (Scenario 2), by applying city-specific annual adjustment factors to the 1-month data. The latter were estimated deriving data from Air Quality Network stations and by applying a machine learning approach. NO2 spatial distribution was estimated at a neighbourhood scale by applying Land Use Random Forest models for the two scenarios. Finally, the impact of lockdown on health was estimated by subtracting attributable deaths for Scenario 1 and those for Scenario 2, both estimated by applying literature-based dose–response function on the counterfactual concentrations of 10 μg/m3. Results The Land Use Random Forest models were able to capture 41–42% of the total NO2 variability. Passing from Scenario 2 (annual NO2 without lockdown) to Scenario 1 (annual NO2 with lockdown), the population-weighted exposure to NO2 for Milan and Rome decreased by 15.1% and 15.3% on an annual basis. Considering the 10 μg/m3 counterfactual, prevented deaths were respectively 213 and 604. Conclusions Our results show that the lockdown had a beneficial impact on air quality and human health. However, compliance with the current EU legal limit is not enough to avoid a high number of NO2 attributable deaths. This contribution reaffirms the potentiality of the citizen science approach and calls for more ambitious traffic calming policies and a re-evaluation of the legal annual limit value for NO2 for the protection of human health.

scholarly journals TEHRAN AIR POLLUTANTS PREDICTION BASED ON RANDOM FOREST FEATURE SELECTION METHOD

2017 ◽  
Vol XLII-4/W4 ◽  
pp. 483-488 ◽  
Author(s):  
A. Shamsoddini ◽  
M. R. Aboodi ◽  
J. Karami
Keyword(s):  
Neural Networks ◽  
Air Pollution ◽  
Feature Selection ◽  
Artificial Neural Networks ◽  
Random Forest ◽  
Sulfur Dioxide ◽  
Nitrogen Dioxide ◽  
Feature Selection Method ◽  
Selection Method ◽  
The Other

Air pollution as one of the most serious forms of environmental pollutions poses huge threat to human life. Air pollution leads to environmental instability, and has harmful and undesirable effects on the environment. Modern prediction methods of the pollutant concentration are able to improve decision making and provide appropriate solutions. This study examines the performance of the Random Forest feature selection in combination with multiple-linear regression and Multilayer Perceptron Artificial Neural Networks methods, in order to achieve an efficient model to estimate carbon monoxide and nitrogen dioxide, sulfur dioxide and PM2.5 contents in the air. The results indicated that Artificial Neural Networks fed by the attributes selected by Random Forest feature selection method performed more accurate than other models for the modeling of all pollutants. The estimation accuracy of sulfur dioxide emissions was lower than the other air contaminants whereas the nitrogen dioxide was predicted more accurate than the other pollutants.

Multi-objective differential evolution based random forest for e-health applications

2019 ◽  
Vol 33 (05) ◽  
pp. 1950022 ◽  
Author(s):  
Manjit Kaur ◽  
Hemant Kumar Gianey ◽  
Dilbag Singh ◽  
Munish Sabharwal
Keyword(s):  
Machine Learning ◽  
Random Forest ◽  
Differential Evolution ◽  
Parameter Tuning ◽  
Machine Learning Techniques ◽  
Medical Applications ◽  
Efficient Manner ◽  
Multi Objective ◽  
Learning Techniques ◽  
Health Applications

Many machine learning techniques have been used in past few decades for various medical applications. However, these techniques suffer from parameter tuning issue. Therefore, an efficient tuning of these parameters has an ability to improve the performance of existing machine learning techniques. Therefore, in this work, a novel multi-objective differential evolution based random forest technique is proposed. The proposed technique is able to tune the parameters of random forest in an efficient manner. Extensive experiments are carried out by considering the proposed and the existing competitive machine learning techniques on various medical applications. It is observed that the proposed technique outperforms existing techniques in terms of accuracy, f-measure, sensitivity and specificity.

scholarly journals Assessing the potential of random forest method for estimating solar radiation using air pollution index

2016 ◽  
Vol 119 ◽  
pp. 121-129 ◽  
Author(s):  
Huaiwei Sun ◽  
Dongwei Gui ◽  
Baowei Yan ◽  
Yi Liu ◽  
Weihong Liao ◽  
...  
Keyword(s):  
Air Pollution ◽  
Random Forest ◽  
Solar Radiation ◽  
Pollution Index ◽  
Air Pollution Index ◽  
Random Forest Method

scholarly journals Air Quality Estimation Using Dendritic Neural Regression with Scale-Free Network-Based Differential Evolution

Atmosphere ◽  
2021 ◽  
Vol 12 (12) ◽  
pp. 1647
Author(s):  
Zhenyu Song ◽  
Cheng Tang ◽  
Jin Qian ◽  
Bin Zhang ◽  
Yuki Todo
Keyword(s):  
Machine Learning ◽  
Air Pollution ◽  
Air Quality ◽  
Differential Evolution ◽  
Machine Learning Algorithms ◽  
Support Vector ◽  
Scale Free Network ◽  
Quality Estimation ◽  
Scale Free ◽  
Free Network

With the rapid development of the global economy, air pollution, which restricts sustainable development and threatens human health, has become an important focus of environmental governance worldwide. The modeling and reliable prediction of air quality remain substantial challenges because uncertainties residing in emissions data are unknown and the dynamic processes are not well understood. A number of machine learning approaches have been used to predict air quality to help alleviate air pollution, since accurate air quality estimation may result in significant social-economic development. From this perspective, a novel air quality estimation approach is proposed, which consists of two components: newly-designed dendritic neural regression (DNR) and customized scale-free network-based differential evolution (SFDE). The DNR can adaptively utilize spatio-temporal information to capture the nonlinear correlation between observations and air pollutant concentrations. Since the landscape of the weight space in DNR is vast and multimodal, SFDE is used as the optimization algorithm due to its powerful search ability. Extensive experimental results demonstrate that the proposed approach can provide stable and reliable performances in the estimation of both PM2.5 and PM10 concentrations, being significantly better than several commonly-used machine learning algorithms, such as support vector regression and long short-term memory.

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