scholarly journals Adaptive unscented transform for uncertainty quantification in EMC large-scale systems

2014 ◽  
Vol 33 (3) ◽  
pp. 914-926 ◽  
Author(s):  
Moises Ferber ◽  
Christian Vollaire ◽  
Laurent Krähenbühl ◽  
João Antônio Vasconcelos
Keyword(s):  
Uncertainty Quantification ◽  
Design Methodology ◽  
Large Scale ◽  
Uncertainty Propagation ◽  
Stochastic Collocation ◽  
Content Type ◽  
Large Scale Systems ◽  
Unscented Transform ◽  
Efficient Alternative ◽  
Input Variables

Purpose – The purpose of this paper is to introduce a novel methodology for uncertainty quantification in large-scale systems. It is a non-intrusive approach based on the unscented transform (UT) but it requires far less simulations from a EM solver for certain models. Design/methodology/approach – The methodology of uncertainty propagation is carried out adaptively instead of considering all input variables. First, a ranking of input variables is determined and after a classical UT is applied successively considering each time one more input variable. The convergence is reached once the most important variables were considered. Findings – The adaptive UT can be an efficient alternative of uncertainty propagation for large dimensional systems. Originality/value – The classical UT is unfeasible for large-scale systems. This paper presents one new possibility to use this stochastic collocation method for systems with large number of input dimensions.

How “The Three Rules” guide strategy and investment decisions at Deloitte Consulting LLP

2015 ◽  
Vol 43 (3) ◽  
pp. 7-14 ◽  
Author(s):  
Jim Moffatt
Keyword(s):  
Design Methodology ◽  
Large Scale ◽  
Investment Decisions ◽  
Decision Makers ◽  
Research Project ◽  
Content Type ◽  
First Case ◽  
Practical Implications ◽  
Thought Leadership

Purpose – This case example looks at how Deloitte Consulting applies the Three Rules synthesized by Michael Raynor and Mumtaz Ahmed based on their large-scale research project that identified patterns in the way exceptional companies think. Design/methodology/approach – The Three Rules concept is a key piece of Deloitte Consulting’s thought leadership program. So how are the three rules helping the organization perform? Now that research has shown how exceptional companies think, CEO Jim Moffatt could address the question, “Does Deloitte think like an exceptional company?” Findings – Deloitte has had success with an approach that promotes a bias towards non-price value over price and revenue over costs. Practical implications – It’s critical that all decision makers in an organization understand how decisions that are consistent with the three rules have contributed to past success as well as how they can apply the rules to difficult challenges they face today. Originality/value – This is the first case study written from a CEO’s perspective that looks at how the Three Rules approach of Michael Raynor and Mumtaz Ahmed can foster a firm’s growth and exceptional performance.

Demystifying performance difference between local and foreign contractors through organisational culture

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Chipozya Kosta Tembo ◽  
Franco Muleya ◽  
Emmanuellie Phiri
Keyword(s):  
Construction Industry ◽  
Construction Projects ◽  
Design Methodology ◽  
Large Scale ◽  
Overall Response Rate ◽  
Organisational Culture ◽  
Management Style ◽  
Content Type ◽  
Public Projects ◽  
Grade One

PurposeThis research aimed to investigate the extent to which organisational culture is practised in local and foreign contractors in grade one and two categories and how it affects their performance.Design/methodology/approachThe approach for this research was positivist in nature adopting a mono-method of data collection through a survey using self-administered questionnaires. A total of 138 questionnaires were distributed among public clients and large-scale contractors registered in the stated grades, and 112 questionnaires were returned for analysis representing an overall response rate of 81% for contractors and clients.FindingsFindings revealed that in organisational culture, significant differences were found for management style and dominant characteristics of the organisation between local and foreign contractors. Differences were not found for leadership styles, measures of success and organisational glue. Results suggest that for local contractors to perform better, significant changes are needed to their management style and dominant characteristics of their organisations.Originality/valueForeign contractors in the Zambian construction industry are reportedly outperforming local contractors making them preferred contractors on larger public projects accounting for 85% of construction projects by value of works. This study presents the differences in organisational culture between foreign and local firms. It further demonstrates that organisational culture plays a key role in determining performance of a contracting firm. The study presents areas that local contractors can improve in organisational culture in order to remain competitive.

Resource misallocation of SMEs in Vietnamese manufacturing sector

2019 ◽  
Vol 26 (3) ◽  
pp. 290-303
Author(s):  
Phuong Thi Nguyen ◽  
Minh Khac Nguyen
Keyword(s):  
Developing Countries ◽  
Total Factor Productivity ◽  
Design Methodology ◽  
Large Scale ◽  
Manufacturing Sector ◽  
Factor Productivity ◽  
Content Type ◽  
Resource Misallocation ◽  
Productivity Decomposition ◽  
Enterprise Survey

Purpose The purpose of this paper is to examine resource misallocation among Vietnam’s small- and medium-sized enterprises (SMEs) in the manufacturing sector. The paper also aims to consider selective factors on reducing the level of resource misallocation in SMEs. Design/methodology/approach Resource misallocation and efficiency gains in total factor productivity (TFP) are assessed using Vietnam’s annual enterprise survey data for the period 2000–2015 and an appropriate productivity decomposition framework. Findings Resource misallocation is found to be higher among SMEs than large scale enterprises. TFP is found to 116.3 per cent greater if there is no resource misallocation among SMEs. Smaller scale, lower market concentration, trade liberalisation and corruption control are found to be associated with lower level of resource misallocation in SMEs. Research limitations/implications The major limitation of this study is that it has only decomposed misallocation of resources arising from output and capital distortions and that it focusses on selective factors contribution to reducing misallocation level in SMEs. Originality/value Resource misallocation is attracting attention in both developed and developing countries. However, knowledge about resource misallocation among SMEs is limited, particularly in the context of developing countries. This paper assesses the level of resource misallocation among SMEs in Vietnamese manufacturing sector.

scholarly journals Narratives of everyday resilience: lessons from an urban kampung community in Surabaya, Indonesia

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Shirleyana ◽  
Scott Hawken ◽  
Riza Yosia Sunindijo ◽  
David Sanderson
Keyword(s):  
Inner City ◽  
Design Methodology ◽  
Large Scale ◽  
Small Scale ◽  
Content Type ◽  
Disadvantaged Communities ◽  
Political Network ◽  
Starting Point ◽  
Resilience Factors ◽  
Depth Interviews

Purpose This paper aims to discuss what people perceive as risks and resilience factors, and how they build everyday resilience. Design/methodology/approach The study focuses on Kampung (literally “village”) Plampitan, a neighbourhood in the inner-city part of Surabaya. The research used field observation, in-depth interviews and workshops during community meetings to collect data. Findings The results show how people respond to daily risks and find the support necessary to survive. The problems and risks revealed in the study include crime and economic difficulties, such as unemployment and insufficient income. Coping strategies identified are classified into place-based adaption, people-based network and political network. These strategies can serve as a starting point for local communities to assess their resilience and assist them in enhancing “everyday” resilience. Originality/value The paper argues that the concept of resilience must go beyond top-down approaches to disaster risk management and integrate bottom-up understanding from the perspective of local people, especially among marginal and disadvantaged communities. The paper develops the emerging and overlooked concept of “everyday resilience” and suggests that it is essential in surviving both “everyday” or small-scale chronic risks and large-scale disasters.

scholarly journals Out to explore the cybersecurity planet

2020 ◽  
Vol 21 (2) ◽  
pp. 291-307
Author(s):  
Giampaolo Bella
Keyword(s):  
Design Methodology ◽  
Large Scale ◽  
Human Factor ◽  
Human Behaviour ◽  
Current Understanding ◽  
Content Type ◽  
Technical Systems ◽  
Security Ceremonies ◽  
Beautiful City

PurposeSecurity ceremonies still fail despite decades of efforts by researchers and practitioners. Attacks are often a cunning amalgam of exploits for technical systems and of forms of human behaviour. For example, this is the case with the recent news headline of a large-scale attack against Electrum Bitcoin wallets, which manages to spread a malicious update of the wallet app. The author therefore sets out to look at things through a different lens.Design/methodology/approachThe author makes the (metaphorical) hypothesis that humans arrived on Earth along with security ceremonies from a very far planet, the Cybersecurity planet. The author’s hypothesis continues, in that studying (by huge telescopes) the surface of Cybersecurity in combination with the logical projection on that surface of what happens on Earth is beneficial for us earthlings.FindingsThe author has spotted four cities so far on the remote planet. Democratic City features security ceremonies that allow humans to follow personal paths of practice and, for example, make errors or be driven by emotions. By contrast, security ceremonies in Dictatorial City compel to comply, hence humans here behave like programmed automata. Security ceremonies in Beautiful City are so beautiful that humans just love to follow them precisely. Invisible City has security ceremonies that are not perceivable, hence humans feel like they never encounter any. Incidentally, the words “democratic” and “dictatorial” are used without any political connotation.Originality/valueA key argument the author shall develop is that all cities but Democratic City address the human factor, albeit in different ways. In the light of these findings, the author will also discuss security ceremonies of our planet, such as WhatsApp Web login and flight boarding, and explore room for improving them based upon the current understanding of Cybersecurity.

A co-citation study of information security patents in the USPTO database

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Elmira Janavi ◽  
Maryam Emami
Keyword(s):  
Information Security ◽  
Citation Analysis ◽  
Design Methodology ◽  
Large Scale ◽  
The United States ◽  
Washington State ◽  
Upward Trend ◽  
Statistical Population ◽  
Content Type ◽  
States Patent

PurposeThe goal of this study was to investigate the co-citation of information security patents in the United States Patent and Trademark Office (USPTO) database.Design/methodology/approachThis research is a scientometrics study that has been conducted using the co-citation analysis. The statistical population of the present study includes all patents of information security filed in the USPTO database from 1971 to 2015. As a result of this search, 30,736 patents were retrieved. In this investigation, UCINET software and its complementary package (NetDraw) were employed to plot scientific maps.FindingsThe findings of this study indicated an upward trend of patents in the field of information security between 1971 and 2015. The “California State” has the top world rank in information security inventions, followed by “Japan” and the “Washington State.” “VAN WIE, DAVID M” is the most cited inventor in the field of information security. The analysis of inventors' co-citation data indicated that “ADAMS, NEIL- LITTLE” and “HERBERT ANTHONY” had the highest co-citation rates with each other and were ranked first. The survey of high-citation inventors based on centrality indices indicated that “LEACH, PAUL J” graded first in degree centrality, “BENALOH, JOSH D” in betweenness centrality and “BENALOH, JOSH D” in closeness centrality.Originality/valueThe co-citation analysis of patents can show the most important patents and the relationships between them. Such analyses can be useful for large-scale policymaking or identification of existing gaps and attempting to address them.

scholarly journals What do faculty and students really think about e‐books?

2007 ◽  
Vol 59 (6) ◽  
pp. 489-511 ◽  
Author(s):  
Ian Rowlands ◽  
David Nicholas ◽  
Hamid R. Jamali ◽  
Paul Huntington
Keyword(s):  
Design Methodology ◽  
Large Scale ◽  
Action Research Project ◽  
Effective Response ◽  
Content Type ◽  
Levels Of Use ◽  
Large Scale Survey ◽  
Electronic Environments ◽  
Library Marketing ◽  
E Mail

PurposeThe purpose of this article is to report on a large‐scale survey that was carried out to assess academic users' awareness, perceptions and existing levels of use of e‐books. The survey also seeks to find out about the purposes to which electronic books were put, and to obtain an understanding of the most effective library marketing and communication channels.Design/methodology/approachAn e‐mail invitation to participate in the survey was distributed to all UCL staff and students (approximately 27,000) in November 2006, and 1,818 completions were received, an effective response rate of at least 6.7 per cent. Statistical analyses were carried out on the data using Software Package for Social Sciences (SPSS).FindingsThe survey findings point to various ways in which user uptake and acceptance of e‐books may be encouraged. Book discovery behaviour, a key issue for publishers and librarians in both print and electronic environments, emerges as a critical focus for service delivery and enhancement.Originality/valueThe survey is part of an action research project, CIBER's SuperBook, that will further investigate the issues raised in this initial benchmarking survey using deep log analysis and qualitative methods. The paper partly fills the gap in the literature on e‐books which has mainly focused on usage and not the users.

Assessing residents’ perceptions of urban placemaking prior to hosting a major cultural event

2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Nicholas Wise ◽  
Jelena Đurkin Badurina ◽  
Marko Perić
Keyword(s):  
Quality Of Life ◽  
Design Methodology ◽  
Large Scale ◽  
Age Groups ◽  
Content Type ◽  
Factors Affecting ◽  
Local Quality ◽  
Practical Implications ◽  
Level Of Agreement

PurposeMore research is needed to consider residents’ perceptions prior to hosting large-scale events. This paper contributes new insight on residents’ perceptions of placemaking analysed by considering awareness, enthusiasm and participation prior to hosting a large-scale event. Placemaking is becoming increasingly important and this insight can help planners understand how locals perceive change and event planning preparations.Design/methodology/approach454 residents of Rijeka, Croatia completed a survey (seven-point Likert scale) of 17 placemaking principles, asked in three ways: (1) how you feel; (2) how you believe people near you feel and (3) if you feel that planning/preparing for ECoC 2020 has made a difference. The data analysis considers socio-demographics and the significance of awareness, enthusiasm and participation as factors affecting residents’ perceptions of placemaking.FindingsThe study found respondents originally from Rijeka expressed statistically significant higher level of agreement. Where statistically significant differences exist, female respondents expressed statistically significant higher levels of agreement. For six statements, the distribution of results was not similar for all age groups. Awareness and enthusiasm seems to influence placemaking principles to a greater extent than participation in this study, but all have proven to have statistically significant positive impacts on the placemaking principles assessed.Practical implicationsPlanners need to focus on effective promotional activities aimed at awareness and enhance enthusiasm to help increase perceptions of placemaking and increase local quality of life.Originality/valueexplores perceptions of “self” and “how others feel” by assessing principles of placemaking associated with the case of Rijeka. This allows researchers to explore understandings of how people perceive the attitudes of their fellow residents.

Learning strategies for competence development in enterprises

2017 ◽  
Vol 49 (1) ◽  
pp. 1-5
Author(s):  
Ulrik Brandi ◽  
Rosa Lisa Iannone
Keyword(s):  
Human Resources ◽  
Learning Strategies ◽  
Design Methodology ◽  
Large Scale ◽  
State Of The Art ◽  
Competence Development ◽  
Abductive Reasoning ◽  
Structured Interviews ◽  
Content Type ◽  
Enterprise Level

Purpose The purpose of this paper is to examine learning strategies for competence development at the enterprise level, and how these can be actualised in practice. The authors focus on three influential aspects, namely: the highest valued employee skills, main triggers for learning and investment in learning, as well as the most successful types of learning. Design/methodology/approach The empirical research was designed according to abductive reasoning. The data draw on research we undertook between 2013 and 2015, including semi-structured interviews with management, human resources and union representatives, as well as questionnaire responses from a total of 31 EU and 163 EU-competitors, across 53 industries and 22 countries. Findings Competence development requires flexible, learner-centred strategies for initiatives that respond to immediate business needs. Additionally, despite soft competences being so highly valued and sought after, investment (financial and other) by enterprises in developing them is low, relative to the investments poured into hard competences. Also, there is a clear employee demand gap for learning that develops soft competences. Originality/value Findings and recommendations are based on a large-scale empirical study, providing state-of-the-art knowledge, upon which we can renew our current learning strategies in workplaces.

The curse of the #1 carmaker: Toyota’s crisis

2018 ◽  
Vol 14 (1) ◽  
pp. 66-82
Author(s):  
Nobuyuki Chikudate ◽  
Can M. Alpaslan
Keyword(s):  
Design Methodology ◽  
Large Scale ◽  
New Technologies ◽  
Corporate Citizenship ◽  
Multiple Perspectives ◽  
Critical Approach ◽  
Technical Problems ◽  
Content Type ◽  
Daunting Task ◽  
Practical Implications

Purpose Using as many perspectives as possible to understand large-scale industrial crises can be a daunting task. This paper aims to demonstrate a reasonably complex yet systemic, analytical and critical approach to analyzing what causes crises. Design/methodology/approach The authors use a multi-perspective methodology within which each perspective uses a substantially different ontology and epistemology, offering a deeper understanding of the causes of large-scale crises. The methodology utilizes extant theory and findings, archival data from English and Japanese sources, including narratives of focal people such as Toyota President Akio Toyoda. Findings The analysis suggests that what caused Toyota’s crisis was not just Toyota’s failure to solve its technical problems. It was Toyota’s collective myopia, interactively complex new technologies and misunderstanding of corporate citizenship. Practical implications The authors argue that crises are complex situations best understood from multiple perspectives and that easily observable aspects of crises are often not the most significant causes of crises. In most cases, causes of crises are hidden and taken-for-granted assumptions of managers. Thus, managers must view crises critically from multiple yet distinct viewpoints. Originality/value The authors use Alpaslan and Mitroff’s multi-disciplinary methodology to outline several critical perspectives on Toyota’s messy recall crisis.

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