Nowadays, in data science, supervised learning algorithms are frequently used to perform text classification. However, African textual data, in general, have been studied very little using these methods. This article ...Nowadays, in data science, supervised learning algorithms are frequently used to perform text classification. However, African textual data, in general, have been studied very little using these methods. This article notes the particularity of the data and measures the level of precision of predictions of naive Bayes algorithms, decision tree, and SVM (Support Vector Machine) on a corpus of computer jobs taken on the internet. This is due to the data imbalance problem in machine learning. However, this problem essentially focuses on the distribution of the number of documents in each class or subclass. Here, we delve deeper into the problem to the word count distribution in a set of documents. The results are compared with those obtained on a set of French IT offers. It appears that the precision of the classification varies between 88% and 90% for French offers against 67%, at most, for Cameroonian offers. The contribution of this study is twofold. Indeed, it clearly shows that, in a similar job category, job offers on the internet in Cameroon are more unstructured compared to those available in France, for example. Moreover, it makes it possible to emit a strong hypothesis according to which sets of texts having a symmetrical distribution of the number of words obtain better results with supervised learning algorithms.展开更多
CHINESE President Xi Jinping’s attendance at the 25th APEC Economic Leaders’Meeting and his state visits to Vietnam and Laos from November 10 to14 marked his first overseas trip after the 19th CPC National Congress,...CHINESE President Xi Jinping’s attendance at the 25th APEC Economic Leaders’Meeting and his state visits to Vietnam and Laos from November 10 to14 marked his first overseas trip after the 19th CPC National Congress,charting a new course for China’s diplomacy with its own characteristics in the new era.According to Chinese Foreign Minister Wang Yi,Xi’s talks during the trip are significant in展开更多
Should the government or the market determine resource allocation? China Economist (CE):The financial crisis that originated in the U.S.continues to brew around the world and has severely
English business correspondence plays an important role in business activities. People take it for granted that it should be cautious and accurate,but neglect the necessity and importance of vague language. Therefore,...English business correspondence plays an important role in business activities. People take it for granted that it should be cautious and accurate,but neglect the necessity and importance of vague language. Therefore, it is very important to apply vague language to English business correspondence.展开更多
If it is to continue its rapid development and achieve its strategic development goals, China must foster the innovative talents of a new generation. It should do this through the reform of science education, and ther...If it is to continue its rapid development and achieve its strategic development goals, China must foster the innovative talents of a new generation. It should do this through the reform of science education, and thereby promote the development of science and technology, and the country’s economy and society. To this end, Academic Divisions of the Chinese Academy of Sciences (CAS) have organized CAS members to undertake a study of science education in China, and set up a research group to conduct a full investigation. They have also organized symposiums, which展开更多
On October 12, 2008, a train- ing school for orphans was inaugurated at Nanshanggang Village, Fangshan District,Beijing Municipality. ＂Ours is not an ordinary orphanage,＂ said school official Zhang Mei. ＂It aims to...On October 12, 2008, a train- ing school for orphans was inaugurated at Nanshanggang Village, Fangshan District,Beijing Municipality. ＂Ours is not an ordinary orphanage,＂ said school official Zhang Mei. ＂It aims to produce members of the social elite by letting orphans grow in love and warmth characteristic of wholesome families.＂展开更多
Zinc-ion batteries(ZIBs)have emerged as a promising candidate in the grid scale energy storage,offering an alternative to conventional lithium-ion batteries.However,as research and development efforts in this field pr...Zinc-ion batteries(ZIBs)have emerged as a promising candidate in the grid scale energy storage,offering an alternative to conventional lithium-ion batteries.However,as research and development efforts in this field progress,it becomes increasingly important to address potential hazards associated with flammable gases and electrolyte components.This future paper aims to raise awareness of safety issues that may be overlooked and underscore two primary temperature-induced hazards:long-term cycling H_(2) gas accu-mulation and flammable organic solvents.We evaluate various electrolytes aimed at minimizing gas pro-duction and improving high-temperature adaptability.Particularly,we emphasize the effectiveness of electrolyte modifications,especially co-solvent approach in addressing the above safety concerns and suggest pathways for formulating practical safe electrolytes.Notably,apart from examining the inherent electrochemical stability window(EsW)of the electrolyte,we urge consideration of side reaction prod-ucts on electrode interfaces and high temperatures as factors influencing a battery's EsW.展开更多
Computational Intelligent(CI)systems represent a pivotal intersection of cutting-edge technologies and complex engineering challenges aimed at solving real-world problems.This comprehensive body of work delves into th...Computational Intelligent(CI)systems represent a pivotal intersection of cutting-edge technologies and complex engineering challenges aimed at solving real-world problems.This comprehensive body of work delves into the realm of CI,which is designed to tackle intricate and multifaceted engineering problems through advanced computational techniques.The history of CI systems is a fascinating journey that spans several decades and has its roots in the development of artificial intelligence and machine learning techniques.Through a wide array of practical examples and case studies,this special issue bridges the gap between theoretical concepts and practical implementation,shedding light on how CI systems can optimize processes,design solutions,and inform decisions in complex engineering landscapes.This compilation stands as an essential resource for both novice learners and seasoned practitioners,offering a holistic perspective on the potential of CI in reshaping the future of engineering problem-solving.展开更多
We applaud the authors for their illuminating perspective on India's malaria slide bank(MSB),featured in the recent publication in your esteemed journal[1].The article provides a comprehensive overview of the esta...We applaud the authors for their illuminating perspective on India's malaria slide bank(MSB),featured in the recent publication in your esteemed journal[1].The article provides a comprehensive overview of the establishment,challenges,and future potential of MSBs,offering valuable insights into the complexities and opportunities inherent in this critical asset for India's malaria elimination program.展开更多
Motivated by the spirit ignited during the I Provincial Scientific Congress on Antarctica in the city of Ushuaia,in Tierra del Fuego,Antártida e Islas del Atlántico Sur Province,Argentina,convened in October...Motivated by the spirit ignited during the I Provincial Scientific Congress on Antarctica in the city of Ushuaia,in Tierra del Fuego,Antártida e Islas del Atlántico Sur Province,Argentina,convened in October 2022,we proudly introduce this special volume entitled“Past and present climatic change in Antarctica:geological proxies and biological processes”.What began as a collaborative effort emerging from that landmark event has blossomed into a collection of diverse works,each offering unique perspectives and analytical scales on climate change and the Antarctic environment.展开更多
ON the banks of the An-yang River and on the Yinxu archeological site in Anyang City,central China’s Henan Province,the grand new building of the Yinxu Museum stands imposingly.This magnificent building,designed in t...ON the banks of the An-yang River and on the Yinxu archeological site in Anyang City,central China’s Henan Province,the grand new building of the Yinxu Museum stands imposingly.This magnificent building,designed in the shape of an ancient Chinese cooking vessel with two loop handles and four legs called ding,is the first national museum offering panoramic views of the civilization of the Shang Dynasty(around 1600-1046 B.C.).The museum,boasting numerous oracle bone inscriptions,has also become one of the new cultural landmarks in China.展开更多
On the banks of the Anyang River and on the Yinxu archeological site in Anyang City,central China’s Henan Province,the grand new building of the Yinxu Museum stands imposingly.This magnificent building,designed in th...On the banks of the Anyang River and on the Yinxu archeological site in Anyang City,central China’s Henan Province,the grand new building of the Yinxu Museum stands imposingly.This magnificent building,designed in the shape of an ancient Chinese cooking vessel with two loop handles and four legs called ding,is the first national museum offering panoramic views of the civilization of the Shang Dynasty(around 1600-1046 B.C.).The museum,boasting numerous oracle bone inscriptions,has also become one of the new cultural landmarks in China.展开更多
While navigating the brave new world of online shopping,China should strike a balance between embracing the future and preserving the traditions that enrich its cultural fabric.IN the bustling streets of China,a quiet...While navigating the brave new world of online shopping,China should strike a balance between embracing the future and preserving the traditions that enrich its cultural fabric.IN the bustling streets of China,a quiet revolution has taken place,reshaping the way people shop and interact with the market.E-commerce has emerged as a dominant force,offering a plethora of products and services at the fingertips of tens of millions.From the tiny needle to the grandest household appliances,from branded shoes to fresh fruits and vegetables,everything is just a click away.展开更多
Since ancient times,the Chinese New Year has been the most important festival for the Chinese nation,and"celebrating the Chinese New Year in museums"has gradually become a new trend in recent years.To enrich...Since ancient times,the Chinese New Year has been the most important festival for the Chinese nation,and"celebrating the Chinese New Year in museums"has gradually become a new trend in recent years.To enrich the cultural offerings during the holiday period and let the general audience experience the strong festive atmosphere in museums,on February 22 and 23,2024,on the eve of the Lantern Festival,the China Arts and Crafts Museum(China Intangible Cultural Heritage Museum)successfully held the"Encounter with Intangible Heritage""Capital Colors Shadow Play:Bejing Shadow Puppetry Outreach Activities."展开更多
Longquan celadon is deeply meaningful in history and possesses multiple attributes including aesthetics,practicality,science,and cultural exchange,offering unique advantages in empowering traditional cultural dissemin...Longquan celadon is deeply meaningful in history and possesses multiple attributes including aesthetics,practicality,science,and cultural exchange,offering unique advantages in empowering traditional cultural dissemination and connecting modern beautiful lives.展开更多
文摘Nowadays, in data science, supervised learning algorithms are frequently used to perform text classification. However, African textual data, in general, have been studied very little using these methods. This article notes the particularity of the data and measures the level of precision of predictions of naive Bayes algorithms, decision tree, and SVM (Support Vector Machine) on a corpus of computer jobs taken on the internet. This is due to the data imbalance problem in machine learning. However, this problem essentially focuses on the distribution of the number of documents in each class or subclass. Here, we delve deeper into the problem to the word count distribution in a set of documents. The results are compared with those obtained on a set of French IT offers. It appears that the precision of the classification varies between 88% and 90% for French offers against 67%, at most, for Cameroonian offers. The contribution of this study is twofold. Indeed, it clearly shows that, in a similar job category, job offers on the internet in Cameroon are more unstructured compared to those available in France, for example. Moreover, it makes it possible to emit a strong hypothesis according to which sets of texts having a symmetrical distribution of the number of words obtain better results with supervised learning algorithms.
文摘CHINESE President Xi Jinping’s attendance at the 25th APEC Economic Leaders’Meeting and his state visits to Vietnam and Laos from November 10 to14 marked his first overseas trip after the 19th CPC National Congress,charting a new course for China’s diplomacy with its own characteristics in the new era.According to Chinese Foreign Minister Wang Yi,Xi’s talks during the trip are significant in
文摘Should the government or the market determine resource allocation? China Economist (CE):The financial crisis that originated in the U.S.continues to brew around the world and has severely
文摘English business correspondence plays an important role in business activities. People take it for granted that it should be cautious and accurate,but neglect the necessity and importance of vague language. Therefore, it is very important to apply vague language to English business correspondence.
文摘If it is to continue its rapid development and achieve its strategic development goals, China must foster the innovative talents of a new generation. It should do this through the reform of science education, and thereby promote the development of science and technology, and the country’s economy and society. To this end, Academic Divisions of the Chinese Academy of Sciences (CAS) have organized CAS members to undertake a study of science education in China, and set up a research group to conduct a full investigation. They have also organized symposiums, which
文摘On October 12, 2008, a train- ing school for orphans was inaugurated at Nanshanggang Village, Fangshan District,Beijing Municipality. ＂Ours is not an ordinary orphanage,＂ said school official Zhang Mei. ＂It aims to produce members of the social elite by letting orphans grow in love and warmth characteristic of wholesome families.＂
基金supported by the Australian Research Council(DP200101862,FL210100050,IH200100035)the grant for an Australian Institute of Nuclear Science and Engineering-Early Career Researcher Grant (S.L Liu)
文摘Zinc-ion batteries(ZIBs)have emerged as a promising candidate in the grid scale energy storage,offering an alternative to conventional lithium-ion batteries.However,as research and development efforts in this field progress,it becomes increasingly important to address potential hazards associated with flammable gases and electrolyte components.This future paper aims to raise awareness of safety issues that may be overlooked and underscore two primary temperature-induced hazards:long-term cycling H_(2) gas accu-mulation and flammable organic solvents.We evaluate various electrolytes aimed at minimizing gas pro-duction and improving high-temperature adaptability.Particularly,we emphasize the effectiveness of electrolyte modifications,especially co-solvent approach in addressing the above safety concerns and suggest pathways for formulating practical safe electrolytes.Notably,apart from examining the inherent electrochemical stability window(EsW)of the electrolyte,we urge consideration of side reaction prod-ucts on electrode interfaces and high temperatures as factors influencing a battery's EsW.
文摘Computational Intelligent(CI)systems represent a pivotal intersection of cutting-edge technologies and complex engineering challenges aimed at solving real-world problems.This comprehensive body of work delves into the realm of CI,which is designed to tackle intricate and multifaceted engineering problems through advanced computational techniques.The history of CI systems is a fascinating journey that spans several decades and has its roots in the development of artificial intelligence and machine learning techniques.Through a wide array of practical examples and case studies,this special issue bridges the gap between theoretical concepts and practical implementation,shedding light on how CI systems can optimize processes,design solutions,and inform decisions in complex engineering landscapes.This compilation stands as an essential resource for both novice learners and seasoned practitioners,offering a holistic perspective on the potential of CI in reshaping the future of engineering problem-solving.
文摘We applaud the authors for their illuminating perspective on India's malaria slide bank(MSB),featured in the recent publication in your esteemed journal[1].The article provides a comprehensive overview of the establishment,challenges,and future potential of MSBs,offering valuable insights into the complexities and opportunities inherent in this critical asset for India's malaria elimination program.
文摘Motivated by the spirit ignited during the I Provincial Scientific Congress on Antarctica in the city of Ushuaia,in Tierra del Fuego,Antártida e Islas del Atlántico Sur Province,Argentina,convened in October 2022,we proudly introduce this special volume entitled“Past and present climatic change in Antarctica:geological proxies and biological processes”.What began as a collaborative effort emerging from that landmark event has blossomed into a collection of diverse works,each offering unique perspectives and analytical scales on climate change and the Antarctic environment.
文摘ON the banks of the An-yang River and on the Yinxu archeological site in Anyang City,central China’s Henan Province,the grand new building of the Yinxu Museum stands imposingly.This magnificent building,designed in the shape of an ancient Chinese cooking vessel with two loop handles and four legs called ding,is the first national museum offering panoramic views of the civilization of the Shang Dynasty(around 1600-1046 B.C.).The museum,boasting numerous oracle bone inscriptions,has also become one of the new cultural landmarks in China.
文摘On the banks of the Anyang River and on the Yinxu archeological site in Anyang City,central China’s Henan Province,the grand new building of the Yinxu Museum stands imposingly.This magnificent building,designed in the shape of an ancient Chinese cooking vessel with two loop handles and four legs called ding,is the first national museum offering panoramic views of the civilization of the Shang Dynasty(around 1600-1046 B.C.).The museum,boasting numerous oracle bone inscriptions,has also become one of the new cultural landmarks in China.
文摘While navigating the brave new world of online shopping,China should strike a balance between embracing the future and preserving the traditions that enrich its cultural fabric.IN the bustling streets of China,a quiet revolution has taken place,reshaping the way people shop and interact with the market.E-commerce has emerged as a dominant force,offering a plethora of products and services at the fingertips of tens of millions.From the tiny needle to the grandest household appliances,from branded shoes to fresh fruits and vegetables,everything is just a click away.
文摘Since ancient times,the Chinese New Year has been the most important festival for the Chinese nation,and"celebrating the Chinese New Year in museums"has gradually become a new trend in recent years.To enrich the cultural offerings during the holiday period and let the general audience experience the strong festive atmosphere in museums,on February 22 and 23,2024,on the eve of the Lantern Festival,the China Arts and Crafts Museum(China Intangible Cultural Heritage Museum)successfully held the"Encounter with Intangible Heritage""Capital Colors Shadow Play:Bejing Shadow Puppetry Outreach Activities."
文摘Longquan celadon is deeply meaningful in history and possesses multiple attributes including aesthetics,practicality,science,and cultural exchange,offering unique advantages in empowering traditional cultural dissemination and connecting modern beautiful lives.
