The ongoing COVID-19 has become a worldwide pandemic with increasing confirmed cases and deaths across the globe. By July 2022, the number of cumulative confirmed cases reported to the World Health Organization (WHO) has risen to 550 million, with more than 6 million deaths in total. The analysis of its epidemic risk remains the focus of attention all over the world for a long time. The Self-organizing feature map (SOM), a vector quantization method, offers a data mapping approach to tracking the response of time series data on a well-trained map. This study aims at a trajectory tracking of COVID-19 epidemic risk in 237 countries measured by the number of new confirmed cases and deaths per day for over one year. A hybrid clustering method uses SOM and K-means to generate a risk map and then displays the trajectory of daily risk on the map. The experimental results demonstrate the promising functionality of SOM for trajectory tracking and give experts insights into the dynamic changes of COVID-19 risk.
{"title":"Trajectory Tracking of COVID-19 Epidemic Risk Using Self-organizing Feature Map","authors":"Ningshan Chen, An Chen, Xiaohui Yao","doi":"10.1051/bcas/2022003","DOIUrl":"https://doi.org/10.1051/bcas/2022003","url":null,"abstract":"The ongoing COVID-19 has become a worldwide pandemic with increasing confirmed cases and deaths across the globe. By July 2022, the number of cumulative confirmed cases reported to the World Health Organization (WHO) has risen to 550 million, with more than 6 million deaths in total. The analysis of its epidemic risk remains the focus of attention all over the world for a long time. The Self-organizing feature map (SOM), a vector quantization method, offers a data mapping approach to tracking the response of time series data on a well-trained map. This study aims at a trajectory tracking of COVID-19 epidemic risk in 237 countries measured by the number of new confirmed cases and deaths per day for over one year. A hybrid clustering method uses SOM and K-means to generate a risk map and then displays the trajectory of daily risk on the map. The experimental results demonstrate the promising functionality of SOM for trajectory tracking and give experts insights into the dynamic changes of COVID-19 risk.","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57872468","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Wen-qiang Guo, Jiaofeng Pan, Liting Liang, J. Kuusisto, Yan-Ran Ma
Since 2017 Finland and China have been developing a future-oriented partnership based on mutual economic and business interests. The starting point for this work is the recognition of significant differences in size, culture, and political as well as economic systems between the two sides. The Sino-Finnish cooperation in energy transition can provide a good example of mutually beneficial partnership where countries complement each other in terms of know-how and resources. This paper brings together the main findings from the policy study on energy transition in Finland and China. It aims to identify potential policy initiatives for expanding Sino-Finnish cooperation towards green growth.
{"title":"A Synthesis of Energy Transition Policies in Finland, China","authors":"Wen-qiang Guo, Jiaofeng Pan, Liting Liang, J. Kuusisto, Yan-Ran Ma","doi":"10.1051/bcas/2022002","DOIUrl":"https://doi.org/10.1051/bcas/2022002","url":null,"abstract":"Since 2017 Finland and China have been developing a future-oriented partnership based on mutual economic and business interests. The starting point for this work is the recognition of significant differences in size, culture, and political as well as economic systems between the two sides. The Sino-Finnish cooperation in energy transition can provide a good example of mutually beneficial partnership where countries complement each other in terms of know-how and resources. This paper brings together the main findings from the policy study on energy transition in Finland and China. It aims to identify potential policy initiatives for expanding Sino-Finnish cooperation towards green growth.","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57872425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cities of the future will need to cope with the triple challenges of urban growth, planetary boundaries leading to reduced energy and other resources, and rapid climate change. In response to the challenges of these complexities, urban growth and innovations in networked infrastructure development need to go hand-in-hand to transform urban systems and sustain the urban health advantage. In order to achieve this, knowledge and policy-making need to undergo processes of accelerated learning. The International Science Council’s global science programme “Urban Health and Wellbeing: A Systems Approach” has formulated goals to meet the urban health challenges of future cities.
{"title":"A New Interdisciplinary Science Plan for Urban Health and Wellbeing in an Age of Increasing Complexity","authors":"F. Gatzweiler, P. Howden-Chapman","doi":"10.1051/bcas/2022001","DOIUrl":"https://doi.org/10.1051/bcas/2022001","url":null,"abstract":"Cities of the future will need to cope with the triple challenges of urban growth, planetary boundaries leading to reduced energy and other resources, and rapid climate change. In response to the challenges of these complexities, urban growth and innovations in networked infrastructure development need to go hand-in-hand to transform urban systems and sustain the urban health advantage. In order to achieve this, knowledge and policy-making need to undergo processes of accelerated learning. The International Science Council’s global science programme “Urban Health and Wellbeing: A Systems Approach” has formulated goals to meet the urban health challenges of future cities.","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"57872416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Unlocking the Structure and Function of Light-harvesting Complexes in Algae","authors":"Fu-Lin Yan","doi":"10.3724/sp.j.7101866518","DOIUrl":"https://doi.org/10.3724/sp.j.7101866518","url":null,"abstract":"","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44815820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Superintense Laser and its Related Devices","authors":"","doi":"10.3724/sp.j.7101866532","DOIUrl":"https://doi.org/10.3724/sp.j.7101866532","url":null,"abstract":"","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45771558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Flying to Mars","authors":"Jianlan Song","doi":"10.3724/sp.j.7103161514","DOIUrl":"https://doi.org/10.3724/sp.j.7103161514","url":null,"abstract":"","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69676161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Advanced Nuclear Energy Sources","authors":"","doi":"10.3724/sp.j.7101866531","DOIUrl":"https://doi.org/10.3724/sp.j.7101866531","url":null,"abstract":"","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49239583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cartilage Cells,Chromosomes and DNA Preserved in 75 Million-Year-Old Baby Duckbilled Dinosaur","authors":"","doi":"10.3724/sp.j.7101866542","DOIUrl":"https://doi.org/10.3724/sp.j.7101866542","url":null,"abstract":"","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45091829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"New Method Speeds Up Identification of Viruses and Bacteria","authors":"®. Bcas","doi":"10.3724/sp.j.7101866538","DOIUrl":"https://doi.org/10.3724/sp.j.7101866538","url":null,"abstract":"","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47300012","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Architecture of African Swine Fever Virus","authors":"Fusheng Yan","doi":"10.3724/sp.j.7101866522","DOIUrl":"https://doi.org/10.3724/sp.j.7101866522","url":null,"abstract":"","PeriodicalId":68605,"journal":{"name":"Bulletin of the Chinese Academy of Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69675724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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