Enterprise-Level Controlled Experiments at Scale: Challenges and Solutions

Author(s):  
Sophia Liu ◽  
Aleksander Fabijan ◽  
Michael Furchtgott ◽  
Somit Gupta ◽  
Pawel Janowski ◽  
...  
Author(s):  
Kenneth E. Parku ◽  
Yvonne Ayerki Lamptey

The practice of trade union pluralism at an enterprise level is seen as problematic for both the management of enterprises and the trade union movement. The problems arise from inter-union rivalries, competition and disputes over demarcations of privileges and rights. This article explores the practice of trade union pluralism at the enterprise level in Ghana with the aim of creating awareness of the effect of the practice on the general trade union movement. This qualitative study employed a cross-sectional design and used purposive and snowball sampling methods in selecting the participants. The data was analysed thematically. The findings from the study show that union pluralism is stimulating the decline in general union membership, the breakaway of local unions from the federations, and employers’ classification of workers based on their qualifications once they are employed by organisations, and their assignment to specific unions (automatic membership at enterprise level). It is suggested that employment laws encourage union breakaways, which weakens the unions especially at the enterprise level. It is recommended that the state, labour officials and policy-makers should enforce labour laws, especially regarding freedom of association, and consider revisiting or amending some labour laws to curb their abuse. The government and labour institutions need to work together to operationalise the implementation of legal provisions on freedom of association or consider amending the provisions to curb the existing abuse.


2019 ◽  
pp. 116-118
Author(s):  
V.D. Roik

Review of the book indicated in the review’s title. According to the summary of the reviewer's reflections on the monograph, its author: a) highly characterizes the whole complex set of existing problems in the field under consideration; b) gives practical recommendations for their resolution — to improve the mechanism of wage regulation in Russia at various management levels (from the macro level to the enterprise level).


Computing ◽  
2021 ◽  
Author(s):  
Antonio Brogi ◽  
Jose Carrasco ◽  
Francisco Durán ◽  
Ernesto Pimentel ◽  
Jacopo Soldani

AbstractTrans-cloud applications consist of multiple interacting components deployed across different cloud providers and at different service layers (IaaS and PaaS). In such complex deployment scenarios, fault handling and recovery need to deal with heterogeneous cloud offerings and to take into account inter-component dependencies. We propose a methodology for self-healing trans-cloud applications from failures occurring in application components or in the cloud services hosting them, both during deployment and while they are being operated. The proposed methodology enables reducing the time application components rely on faulted services, hence residing in “unstable” states where they can suddenly fail in cascade or exhibit erroneous behaviour. We also present an open-source prototype illustrating the feasibility of our proposal, which we have exploited to carry out an extensive evaluation based on controlled experiments and monkey testing.


2008 ◽  
Vol 56 (3) ◽  
pp. 272 ◽  
Author(s):  
Zhi Y. Yuan ◽  
Han Y. H. Chen ◽  
Ling H. Li

Nitrogen use efficiency (NUE) can be divided into two components, i.e. N productivity (A) and the mean residence time (MRT). Controlled experiments indicate that there is not a trade-off between A and MRT within species, but this theory has not been well tested in field conditions. Here, we studied the A, MRT and NUE of Stipa krylovii Roshev. in a grassland over 4 years of N fertilisation experimentation. The three parameters (A, MRT and NUE) were significantly related to soil N supply and there was a negative relationship between A and MRT within this species (r = –0.775, P < 0.05), i.e. plants with higher A had lower MRT. Our results showed a trade-off between A and MRT within this Stipa species and this observed trade-off was attributed to different responses of A and MRT to soil fertility.


1991 ◽  
Vol 21 (1) ◽  
pp. 46-55 ◽  
Author(s):  
Steve Meyer

2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Changyong Li ◽  
Yongxian Fan ◽  
Xiaodong Cai

Abstract Background With the development of deep learning (DL), more and more methods based on deep learning are proposed and achieve state-of-the-art performance in biomedical image segmentation. However, these methods are usually complex and require the support of powerful computing resources. According to the actual situation, it is impractical that we use huge computing resources in clinical situations. Thus, it is significant to develop accurate DL based biomedical image segmentation methods which depend on resources-constraint computing. Results A lightweight and multiscale network called PyConvU-Net is proposed to potentially work with low-resources computing. Through strictly controlled experiments, PyConvU-Net predictions have a good performance on three biomedical image segmentation tasks with the fewest parameters. Conclusions Our experimental results preliminarily demonstrate the potential of proposed PyConvU-Net in biomedical image segmentation with resources-constraint computing.


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