Supervised Learning Algorithm on Unstructured Documents for the Classification of Job Offers: Case of Cameroun

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.

China’s New Journey Offers New Hope for Asia-Pacific

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

Moving back offers no way out

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

Analysis of Vague Language in Enquiry and Offers——from English business correspondence

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.

CAS Offers Suggestions on Science Education

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

School Offers Family Care to Orphans

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.＂

The osteoclastic activity in apical distal region of molar mesial roots affects orthodontic tooth movement and root resorption in rats

The utilization of optimal orthodontic force is crucial to prevent undesirable side effects and ensure efficient tooth movement during orthodontic treatment.However,the sensitivity of existing detection techniques is not sufficient,and the criteria for evaluating optimal force have not been yet established.Here,by employing 3D finite element analysis methodology,we found that the apical distal region(A-D region)of mesial roots is particularly sensitive to orthodontic force in rats.Tartrate-resistant acidic phosphatase(TRAP)-positive osteoclasts began accumulating in the A-D region under the force of 40 grams(g),leading to alveolar bone resorption and tooth movement.When the force reached 80 g,TRAP-positive osteoclasts started appearing on the root surface in the A-D region.Additionally,micro-computed tomography revealed a significant root resorption at 80 g.Notably,the A-D region was identified as a major contributor to whole root resorption.It was determined that 40 g is the minimum effective force for tooth movement with minimal side effects according to the analysis of tooth movement,inclination,and hyalinization.These findings suggest that the A-D region with its changes on the root surface is an important consideration and sensitive indicator when evaluating orthodontic forces for a rat model.Collectively,our investigations into this region would aid in offering valuable implications for preventing and minimizing root resorption during patients’orthodontic treatment.

Promoting public health through the 2024 Compendium of Physical Activities:Strategies for adults,older adults,and wheelchair users

Physical activity(PA)is fundamentally linked to public health,^(1)providing benefits including chronic disease prevention and treatment,^(2)mental health,^(3)musculoskeletal health,^(4)and healthy aging,^(5)along with socioeconomic advantages.^(6)These benefits highlight the importance of promoting PA for all populations.The recent publication of the Compendium of Physical Activities(Compendium)serves as a valuable resource,^(7)offering an updated and expanded guide for adults(ages 19-59)with tailored energy cost values for diverse populations.

Safety for all temperature zinc-ion batteries

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.

Single cell analysis unveils B cell-dominated immune subtypes in HNSCC for enhanced prognostic and therapeutic stratification

Head and neck squamous cell carcinoma(HNSCC)is characterized by high recurrence or distant metastases rate and the prognosis is challenging.There is mounting evidence that tumor-infiltrating B cells(TIL-Bs)have a crucial,synergistic role in tumor control.However,little is known about the role TIL-Bs play in immune microenvironment and the way TIL-Bs affect the outcome of immune checkpoint blockade.Using single-cell RNA sequencing(scRNA-seq)data from the Gene Expression Omnibus(GEO)database,the study identified distinct gene expression patterns in TIL-Bs.HNSCC samples were categorized into TIL-Bs inhibition and TIL-Bs activation groups using unsupervised clustering.This classification was further validated with TCGA HNSCC data,correlating with patient prognosis,immune cell infiltration,and response to immunotherapy.We found that the B cells activation group exhibited a better prognosis,higher immune cell infiltration,and distinct immune checkpoint levels,including elevated PD-L1.A prognostic model was also developed and validated,highlighting four genes as potential biomarkers for predicting survival outcomes in HNSCC patients.Overall,this study provides a foundational approach for B cells-based tumor classification in HNSCC,offering insights into targeted treatment and immunotherapy strategies.

Introduction to the Special Issue on Computational Intelligent Systems for Solving Complex Engineering Problems: Principles and Applications

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.

职场观察类综艺节目《令人心动的offer》第四季研究

当前,就业形势日益严峻,真实的职场生态引起了人们的关注,职场观察类综艺节目也因此得到高度关注。文章以职场观察类综艺节目《令人心动的offer》第四季为出发点,分析了该节目的热播原因,并梳理了节目中存在的问题,并为以后的发展提供了一些建议,希望为之后的职场观察类综艺节目提供借鉴。

Navigating the future of malaria control:Insights from India's pioneering malaria slide bank

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.

Foreword

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.

Yinxu Museum Unveils Grandeur of the Shang Dynasty

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.