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A New Hybrid Machine Learning Model for Short-Term Climate Prediction by Performing Classification Prediction and Regression Prediction Simultaneously

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Journal of Meteorological Research 2022年第6期36卷 853-865页

作者： Deqian LI Shujuan HU Jinyuan GUO Kai WANG Chenbin GAO Siyi WANG wenping he Key Laboratory for Semi-Arid Climate Change of the Ministry of Education College of Atmospheric SciencesLanzhouUniversityLanzhou 730000 School of Atmospheric Sciences Sun Yat-sen UniversityZhuhai 519082

Machine learning methods are effective tools for improving short-term climate ***,commonly used methods often carry out classification and regression prediction modeling separately and *** a single modeling approach may obtain inconsistent prediction results in classification and regression and thus may not meet the needs of practical applications *** address this issue,this study proposes a selective Naive Bayes ensemble model(SENB-EM)by introducing causal effect and voting strategy on Naive *** new model can not only screen effective predictors but also perform classification and regression prediction *** being applied to the area prediction of summer western North Pacific subtropical high(WNPSH)from 2008 to 2021,it is found that the accuracy classification score(a metric to assess the overall classification prediction accuracy)and the time correlation coefficient(TCC)of SENB-EM can reach 1.0 and 0.81,*** integrating the results of different models[including multiple linear regression ensemble model(MLR-EM),SENB-EM,and Chinese Multimodel Ensemble Prediction System(CMME)used by National Climate Center(NCC)]for 2017-2021,the TCC of the ensemble results of SENB-EM and CMME can reach 0.92(the highest result among them).This indicates that the prediction results of the summer WNPSH area provided by SENB-EM have a high reference value for the real-time *** is worth noting that,except for the numerical prediction results,the SENB-EM model can also give the range of numerical prediction intervals and predictions for anomalous degrees of the WNPSH area,thus providing more reference information for meteorological ***,as a new hybrid machine learning model,the SENB-EM has a good prediction ability;the approach of performing classification prediction and regression prediction simultaneously through integration is informative to short-term climate prediction.

关键词： selective Naive Bayes ensemble model machine learning short-term climate prediction classification prediction regression prediction western North Pacific subtropical high

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China's Aid to Africa:Characteristics,Its Role and Challenges ahead

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国际展望 2010年第5期2卷 30-48页

作者： he wenping

Started from 1956,China's aid to Africa has been playing a very significant role for strengthening Sino-African ties as a *** speaking,take "the reform and opening-up" policy started from late 1970s as a line of demarcation,China's aid policy to Africa can be divided into two periods in the half *** driving force of China's aid policy before the line was to strengthen the diplomatic and political ties with African *** focus of China's aid policy after the line is to seek mutual economic cooperation and common *** with the Western approaches,the major characteristics of China's aid policy to Africa are mainly three:the aid is provided with no strings attached,and emphasizing on bilateral aid projects rather than multilateral system,strong focus on "hardware projects" such as physical infrastructure construction rather than "software projects" like research and capacity *** general,China's aid to Africa has generated effective results and helped a lot for China's involvement in ***,it is also facing new challenges at the moment and future.

关键词： China’s Aid to Africa

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The Darfur Issue:A New Test for China's African Policy

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国际展望 2010年第2期 156-172+107-108页

作者： he wenping

With the approaching of Sudan’s very first election in nearly two decades in April 2010,Sudan,the biggest country in Africa and also the country that faced most complicated development environment both domestically and internationally,is once again becoming the focus of the *** the ongoing conflict in the Darfur region of Sudan,about one fifth of the total area and with more than 17%of total population,plus the controversy policy taken by the Sudan government as well as China’s growing economic engagement in the country,particularly in the energy field,has put China’s Africa policy in the spot *** China and Sudan have had a long tradition of friendship and close political and economic ties,there has been an unreasonable high expectation from the international community that China alone can influence the position of the Sudanese government on this sensitive *** international controversy over Darfur has brought a fundamental challenge to China’s long-held foreign policy of ’non-interference’.The author argued in the paper,the principle of"non-interference"should not be interpreted as non willingness to take the"responsibility to protect".As a matter of fact,in recent years,China’s Darfur policy has shown more and more flexibility and the"non-interference"policy itself is also undergoing *** the complexity of the Darfur issue and the volatile North/South relation in Sudan,the"engagement approach"endorsed and pushed by China is more constructive than"sanction initiative"for maintaining the stability and peace in Sudan.

关键词： The Darfur Issue ICC Test

Rethinking China's Soft Power Building in Africa

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International Understanding 2017年第2期 1-10页

作者： he wenping Institute of West Asian & African Studies (IWAAS) Chinese Academy of Social Sciences (CASS)

Sino-African relations have progressed significantly on the economic front over the past one and half decade ever since the establishment of the Forum on China-Africa Cooperation(FOCAC) in October *** example。

关键词： in or on is Rethinking China’s Soft Power Building in Africa of been form that

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A Year of Great Strides

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Beijing Review 2023年第2期66卷 24-26页

作者： he wenping Chinese Academy of China-Africa Institute Chinese Academy of Social Sciences Institute of West-Asian and African Studies

2022 was the first year of implementing the outcomes of the Eighth Ministerial Conference of the Forum on ChinaAfrica Cooperation(FOCAC), held in November 2021 in Dakar, Senegal. The conference adopted four outcome do... 详细信息

关键词： Africa Minister Forum

Unchangeable Commitment

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ChinAfrica 2020年第2期12卷 10-11页

作者： he wenping the Charhar Institute Chinese Academy of Social Sciences the Institute of West-Asian and African Studies Chinese Academy of Social Sciences

On January 7-13,C hinese State Councilor and Foreign M inister Wang Yi paid official visits to five African countries,the first overseas trip of the minister in 2020,marking the 30th consecutive year since 1991 that a... 详细信息

关键词： Africa minister visit

Ever Closer Partnership

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ChinAfrica 2021年第1期13卷 10-11页

作者： he wenping Charhar Institute Institute of West Asian and African Studies Chinese Academy of Social Sciences

Solidarity in fighting COVID-19 has further highlighted the value of China-Africa cooperation The year 2020 is of special significance in world history and the history of China-Africa *** global outbreak of the COVID-... 详细信息

关键词： fighting Africa cooperation

A Year of Great Strides

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China Today 2023年第2期72卷 36-39页

作者： he wenping Institute of West-Asian and African Studies of the Chinese Academy of Social Sciences and researcher of China-Africa Institute

Review of China-Africa relations in 2022 and prospects for *** year 2022 was the first year of implementing the outcomes of the Eighth Ministerial Conference of the Forum on China-Africa Cooperation(FOCAC)held in November 2021 in Dakar,Senegal,which adopted four outcome documents,namely the Dakar Declaration,the China-Africa Cooperation Vision 2035,the Declaration on China-Africa Cooperation on Combating Climate Change,and the Dakar Action Plan(2022-2024).

关键词： Africa Combat Minister

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Broad Prospect

ChinAfrica 2020年第1期12卷 16-19页

作者： he wenping the Charhar Institute Chinese Academy of Social Sciences the Institute of West-Asian and African Studies Chinese Academy of Social Sciences

Looking back at 2019,it was a fruitful year for Sino-African relations,but the highlight was the implementation of the Eight Major Initiatives announced at the 2018 Beijing Summit of the Forum on China-Africa Cooperation(FOCAC).In the year,the Second Belt and Road Forum for International Cooperation was held in Bering in April and China celebrated the 70th anniversary of the founding of the People's Republic of China in Octobe匚African countries sent warm congratulations to *** year also witnessed further progress in promoting China-Africa cooperation and new features in people-to-people exchanges.

关键词： auger founding Africa