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2022 ◽  
Vol 40 (4) ◽  
pp. 1-31
Author(s):  
Zhiqiang Pan ◽  
Fei Cai ◽  
Wanyu Chen ◽  
Honghui Chen

Session-based recommendation aims to generate recommendations merely based on the ongoing session, which is a challenging task. Previous methods mainly focus on modeling the sequential signals or the transition relations between items in the current session using RNNs or GNNs to identify user’s intent for recommendation. Such models generally ignore the dynamic connections between the local and global item transition patterns, although the global information is taken into consideration by exploiting the global-level pair-wise item transitions. Moreover, existing methods that mainly adopt the cross-entropy loss with softmax generally face a serious over-fitting problem, harming the recommendation accuracy. Thus, in this article, we propose a Graph Co-Attentive Recommendation Machine (GCARM) for session-based recommendation. In detail, we first design a Graph Co-Attention Network (GCAT) to consider the dynamic correlations between the local and global neighbors of each node during the information propagation. Then, the item-level dynamic connections between the output of the local and global graphs are modeled to generate the final item representations. After that, we produce the prediction scores and design a Max Cross-Entropy (MCE) loss to prevent over-fitting. Extensive experiments are conducted on three benchmark datasets, i.e., Diginetica, Gowalla, and Yoochoose. The experimental results show that GCARM can achieve the state-of-the-art performance in terms of Recall and MRR, especially on boosting the ranking of the target item.


AI and Ethics ◽  
2022 ◽  
Author(s):  
Edmund Ofosu Benefo ◽  
Aubrey Tingler ◽  
Madeline White ◽  
Joel Cover ◽  
Liana Torres ◽  
...  

2022 ◽  
Author(s):  
Lucia Morosan-Danila ◽  
◽  
Otilia-Maria Bordeianu ◽  

The year 2020 came with new challenges for individuals,enterprise sand public institutions.The COVID-19 pandemic imposed a change in the way of thinking, management and action at local and global level, in order to overcome obstacles of financial, legislative, procedural ororganizational nature.The economic crisis felt by the business environment only started in 2020, andc ompanies mustunderstand the need to formulate and implement specific strategies related to management,human resources,supply chain,source of financing ,etc.This paper aims to present solutions for efficient management of human resources within companies in order to cope with the problems generated by COVID-19,based on the analysis of the current situation in Romania,presenting an analysis of the human resources management during the crisis. At the end, proposals are made to support the activity of human resources specialists in crisis situations, especially the type generated by COVID-19 context, when the mobility and interaction of human resources is limited.


Author(s):  
Pisut Pongchaikul ◽  
Paninee Mongkolsuk

Antibiotic resistance, particularly beta-lactam resistance, is a major problem worldwide. Imipenemase or IMP-type metallo-beta-lactamase (MBL) has become a more prominent enzyme, especially in Asia, since it was discovered in the 1990s in Japan. There are currently more than 91 variants of IMP-type enzymes. The most commonly identified variant of IMP-type enzymes is IMP-1 variant. IMP-type MBLs have been identified in more than 10 species in Enterobacterales. Pseudomonas aeruginosa is the most frequent carrier of IMP-type enzymes worldwide. In Asia, IMP-type MBLs have been distributed in many countries in the region. This work investigated a variety of currently available IMP-type MBLs in both global level and regional level. Out of 88 variants of IMP-type MBLs reported worldwide, only 32 variants were found to have susceptibility profiles. Most of the IMP-type MBLs were resistant to Carbapenems, especially Imipenem and Meropenem, followed by the 3rd generation cephalosporins, and interestingly, monobactams. Our results comprehensively indicated the distribution of IMP-type MBLs in Asia and raised the awareness of the situation of antimicrobial resistance in the region.


2022 ◽  
Vol 119 (3) ◽  
pp. e2109690119
Author(s):  
Ingvild Almås ◽  
Alexander W. Cappelen ◽  
Erik Ø. Sørensen ◽  
Bertil Tungodden

We report on a study of whether people believe that the rich are richer than the poor because they have been more selfish in life, using data from more than 26,000 individuals in 60 countries. The findings show a strong belief in the selfish rich inequality hypothesis at the global level; in the majority of countries, the mode is to strongly agree with it. However, we also identify important between- and within-country variation. We find that the belief in selfish rich inequality is much stronger in countries with extensive corruption and weak institutions and less strong among people who are higher in the income distribution in their society. Finally, we show that the belief in selfish rich inequality is predictive of people’s policy views on inequality and redistribution: It is significantly positively associated with agreeing that inequality in their country is unfair, and it is significantly positively associated with agreeing that the government should aim to reduce inequality. These relationships are highly significant both across and within countries and robust to including country-level or individual-level controls and using Lasso-selected regressors. Thus, the data provide compelling evidence of people believing that the rich are richer because they have been more selfish in life and perceiving selfish behavior as creating unfair inequality and justifying equalizing policies.


Author(s):  
Christoph Helbig ◽  
Yasushi Kondo ◽  
Shinichiro Nakamura
Keyword(s):  

2022 ◽  
pp. 0734242X2110697
Author(s):  
Harsha Wakudkar ◽  
Sudhir Jain

Corn cob is one of the agricultural waste materials subjected to improper burning, which creates pollution. It can be used for the production of green technologies for further applications. Carbonisation or slow pyrolysis could be promising alternative to burning. It has many applications, such as soil ameliorant, waste water treatment, carbon sequestration, composting, supercapacitor, fuel cell and biocomposites material. It motivated to investigate the suitability of corn cob as a potential material for biochar production and its application. The advanced form of analysis, such as thermogravimetric, scanning electron microscopy, surface area, Fourier transform infrared spectroscopy, nuclear magnetic resonance spectroscopy and Raman spectroscopy, is elaborated for in-depth knowledge of characteristics. The hypothesis is that if the available corn cob is used for biochar production, it will reduce the carbon dioxide (CO2) emission. On a global level, conversion of available corn cob into biochar is expected to reduce CO2 emission by 0.13 Gt per year. The reduction in CO2 emission also favours economy. If 1 tonne of biomass per year is converted into biochar, 0.82 tonnes of CO2 can be reduced per year and by considering the emission cost of Rs 1800 per tonne, the cost saving would be Rs 1476 per year. The presented mini-review article provides an outline of the state-of-art information on corn cob biochar and its novel application. It will be helpful to scientific domain to find new opportunities in biochar research and also the humanity will be benefitted due to reduction in greenhouse gases.


2022 ◽  
pp. 26-42
Author(s):  
G. Ramadhas ◽  
A.S. Suman Sankar ◽  
N.V. Sugathan

The present chapter evaluates the growth of literature of Toxicology in Homoeopathy. The Scopus database is used as source for the study. Data pertaining to toxicology in homoeopathy for the period 1963 to 2017 is retrieved and analyzed. The study reveals that toxicology literature grows rapidly in the later stages than in the earlier period. The United States of America is the leading contributors at the global level and India is in second position. Among the contributors, E.J. Calabrese, Professor of Toxicology, University of Massachusetts is the most prolific author for Toxicology in Homoeopathy literature. University of Kalyani and University of Massachusetts are the leading institutions, majority of the records are published in the journal ‘Homoeopathy', which is published from the USA and major contributions are in the subject domain ‘medicine' (65.4 per cent). Most frequently repeated keywords in toxicology of homoeopathy literature are: homoeopathy, humans, non-human, unclassified drug and animals.


2022 ◽  
Vol 12 (1) ◽  
Author(s):  
Zakaryaa Zarhri ◽  
William Rosado Martinez ◽  
Jose Antonio Dominguez Lepe ◽  
Ricardo Enrique Vega Azamar ◽  
Maritza Chan Juarez ◽  
...  

This work presents a bibliometric study of the literature on the use of caucho in the construction to promote the interest of using rubber as a prime material to reduce pollution at a global level. Published papers in the period 1999-2020 in both databases, Scopus and Web of Science (WoS), are taken into account using the Methodi Ordinatio and the VOSviewer software. A total of 967 documents on the use of rubber in structural and non-structural concrete have been published in this period and 1182 authors have contributed on the subject. Since 2010, the interest of researchers in introducing rubber in construction has increased. China, USA and Australia are the countries with the greatest interest in investigating about rubber-concrete.


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