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Article
Publication date: 27 November 2020

Petar Jackovich, Bruce Cox and Raymond R. Hill

This paper aims to define the class of fragment constructive heuristics used to compute feasible solutions for the traveling salesman problem (TSP) into edge-greedy and vertex…

Abstract

Purpose

This paper aims to define the class of fragment constructive heuristics used to compute feasible solutions for the traveling salesman problem (TSP) into edge-greedy and vertex-greedy subclasses. As these subclasses of heuristics can create subtours, two known methodologies for subtour elimination on symmetric instances are reviewed and are expanded to cover asymmetric problem instances. This paper introduces a third novel subtour elimination methodology, the greedy tracker (GT), and compares it to both known methodologies.

Design/methodology/approach

Computational results for all three subtour elimination methodologies are generated across 17 symmetric instances ranging in size from 29 vertices to 5,934 vertices, as well as 9 asymmetric instances ranging in size from 17 to 443 vertices.

Findings

The results demonstrate the GT is the fastest method for preventing subtours for instances below 400 vertices. Additionally, a distinction between fragment constructive heuristics and the subtour elimination methodology used to ensure the feasibility of resulting solutions enables the introduction of a new vertex-greedy fragment heuristic called ordered greedy.

Originality/value

This research has two main contributions: first, it introduces a novel subtour elimination methodology. Second, the research introduces the concept of ordered lists which remaps the TSP into a new space with promising initial computational results.

Article
Publication date: 31 August 2010

Steve Evans and Kerry Jacobs

The purpose of this paper is to understand if accounting is an un‐Australian activity, contrasting the notion of the bush and bushman present in popular Australian poetry and…

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Abstract

Purpose

The purpose of this paper is to understand if accounting is an un‐Australian activity, contrasting the notion of the bush and bushman present in popular Australian poetry and cultural myth with the notion expressed by Maltby of the link between the soul of the middle class and the practice of bookkeeping. The paper aims to explore the notion of a tension between what might be seen as indigenous values and the values of Western capitalism.

Design/methodology/approach

The paper presents an analysis of Australian poetry to identify in this culturally significant media how the city and the technologies of accounting are negatively contrasted with the bush and the bushman. Since many Australians migrated from European countries, we might expect bookkeeping to claim a foundational place in the Australian soul.

Findings

This literature shows bush dwellers as being exploited by those from the city, and city professionals such as the accountant and the lawyer as having lost their sense of self and soul. The sense of “other” reflected by the concept of the bush in Australian literature represents a tension between a structured and ordered European sense of self expressed by Maltby and an archetypical sense of self implied by the character of the bushman and connected to the Australian landscape, with its inherent but little acknowledged debt to the Aboriginal. In this landscape the absence of both accounting and the associated rhetoric of economic rationality allow other forms of rationality to emerge.

Originality/value

This is the first time that poetry has been examined in relation to accounting. It shows a deep insight into the place of archetype of the accountant in Australian cultural identity. In addition it argues that responses to accounting can reflect underlying rhetorics of rationality.

Details

Qualitative Research in Accounting & Management, vol. 7 no. 3
Type: Research Article
ISSN: 1176-6093

Keywords

Article
Publication date: 30 August 2013

Vanessa El‐Khoury, Martin Jergler, Getnet Abebe Bayou, David Coquil and Harald Kosch

A fine‐grained video content indexing, retrieval, and adaptation requires accurate metadata describing the video structure and semantics to the lowest granularity, i.e. to the…

Abstract

Purpose

A fine‐grained video content indexing, retrieval, and adaptation requires accurate metadata describing the video structure and semantics to the lowest granularity, i.e. to the object level. The authors address these requirements by proposing semantic video content annotation tool (SVCAT) for structural and high‐level semantic video annotation. SVCAT is a semi‐automatic MPEG‐7 standard compliant annotation tool, which produces metadata according to a new object‐based video content model introduced in this work. Videos are temporally segmented into shots and shots level concepts are detected automatically using ImageNet as background knowledge. These concepts are used as a guide to easily locate and select objects of interest which are then tracked automatically to generate an object level metadata. The integration of shot based concept detection with object localization and tracking drastically alleviates the task of an annotator. The paper aims to discuss these issues.

Design/methodology/approach

A systematic keyframes classification into ImageNet categories is used as the basis for automatic concept detection in temporal units. This is then followed by an object tracking algorithm to get exact spatial information about objects.

Findings

Experimental results showed that SVCAT is able to provide accurate object level video metadata.

Originality/value

The new contribution in this paper introduces an approach of using ImageNet to get shot level annotations automatically. This approach assists video annotators significantly by minimizing the effort required to locate salient objects in the video.

Details

International Journal of Pervasive Computing and Communications, vol. 9 no. 3
Type: Research Article
ISSN: 1742-7371

Keywords

Article
Publication date: 4 August 2022

Zelin Wang, Feng Gao, Yue Zhao, Yunpeng Yin and Liangyu Wang

Path planning is a fundamental and significant issue in robotics research, especially for the legged robots, since it is the core technology for robots to complete complex tasks…

Abstract

Purpose

Path planning is a fundamental and significant issue in robotics research, especially for the legged robots, since it is the core technology for robots to complete complex tasks such as autonomous navigation and exploration. The purpose of this paper is to propose a path planning and tracking framework for the autonomous navigation of hexapod robots.

Design/methodology/approach

First, a hexapod robot called Hexapod-Mini is briefly introduced. Then a path planning algorithm based on improved A* is proposed, which introduces the artificial potential field (APF) factor into the evaluation function to generate a safe and collision-free initial path. Then we apply a turning point optimization based on the greedy algorithm, which optimizes the number of turns of the path. And a fast-turning trajectory for hexapod robot is proposed, which is applied to path smoothing. Besides, a model predictive control-based motion tracking controller is used for path tracking.

Findings

The simulation and experiment results show that the framework can generate a safe, fast, collision-free and smooth path, and the author’s Hexapod robot can effectively track the path that demonstrates the performance of the framework.

Originality/value

The work presented a framework for autonomous path planning and tracking of hexapod robots. This new approach overcomes the disadvantages of the traditional path planning approach, such as lack of security, insufficient smoothness and an excessive number of turns. And the proposed method has been successfully applied to an actual hexapod robot.

Details

Industrial Robot: the international journal of robotics research and application, vol. 50 no. 1
Type: Research Article
ISSN: 0143-991X

Keywords

Article
Publication date: 26 August 2021

Nglaa Ahmad, Shamima Haque and Muhammad Azizul Islam

This article aims to examine how non-governmental organisations (NGOs)' narratives portray the vulnerability of workers in global clothing supply chains during the COVID-19 crisis.

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Abstract

Purpose

This article aims to examine how non-governmental organisations (NGOs)' narratives portray the vulnerability of workers in global clothing supply chains during the COVID-19 crisis.

Design/methodology/approach

The research analyses the rhetoric in global clothing retailers' and NGOs' counter-rhetoric during the first seven months of 2020.

Findings

During this period, retailers employed rhetorical strategies to legitimise irresponsible actions (corporate hegemony prevailed), while NGOs embraced forms of counter-rhetoric trying to delegitimise the retailers' logic, stressing the role of neoliberalism in worsening the situation.

Originality/value

The authors contribute to the literature by providing new insight into the consequences of COVID-19 for retailers' neoliberal practices and the livelihood of workers in global supply chains. Findings of this study extend authors’ knowledge about retailers' COVID-19 measures: These have contributed to the plights of workers working for their supply factories in the global South.

Details

Accounting, Auditing & Accountability Journal, vol. 35 no. 1
Type: Research Article
ISSN: 0951-3574

Keywords

Open Access
Article
Publication date: 22 August 2022

Euodia Vermeulen and Sara Grobbelaar

In this article we aim to understand how the network formed by fitness tracking devices and associated apps as a subset of the broader health-related Internet of things is capable…

Abstract

Purpose

In this article we aim to understand how the network formed by fitness tracking devices and associated apps as a subset of the broader health-related Internet of things is capable of spreading information.

Design/methodology/approach

The authors used a combination of a content analysis, network analysis, community detection and simulation. A sample of 922 health-related apps (including manufacturers' apps and developers) were collected through snowball sampling after an initial content analysis from a Google search for fitness tracking devices.

Findings

The network of fitness apps is disassortative with high-degree nodes connecting to low-degree nodes, follow a power-law degree distribution and present with low community structure. Information spreads faster through the network than an artificial small-world network and fastest when nodes with high degree centrality are the seeds.

Practical implications

This capability to spread information holds implications for both intended and unintended data sharing.

Originality/value

The analysis confirms and supports evidence of widespread mobility of data between fitness and health apps that were initially reported in earlier work and in addition provides evidence for the dynamic diffusion capability of the network based on its structure. The structure of the network enables the duality of the purpose of data sharing.

Details

Information Technology & People, vol. 35 no. 8
Type: Research Article
ISSN: 0959-3845

Keywords

Book part
Publication date: 18 August 2014

Philip H. Mirvis and Christopher G. Worley

This chapter introduces the volume’s theme by considering how the forces of globalization and complexity are leading organizations to reshape and redesign themselves, how meeting…

Abstract

Purpose

This chapter introduces the volume’s theme by considering how the forces of globalization and complexity are leading organizations to reshape and redesign themselves, how meeting the challenges of sustainable effectiveness and shared value require multiorganization networks and partnerships, and how networks and partnerships develop, function, and can produce both private benefits and public goods.

Design/methodology/approach

We apply findings from social and political evolution frameworks, partnership and collaboration research, and design for sustainability concepts to induce the likely conditions required for sustainable effectiveness from a network perspective.

Findings

Successful partnerships and collaborations in service of sustainable effectiveness will require individual organizations to change their objective function and build new and varied internal and external capabilities.

Originality/value

The chapter sets the stage for the volume’s contributions.

Article
Publication date: 23 March 2022

Dmitriy Fedotov

This paper aims to examine Canadian government measures to support country’s economic recovery and sustainable development. The goal is to examine whether all orders of government…

Abstract

Purpose

This paper aims to examine Canadian government measures to support country’s economic recovery and sustainable development. The goal is to examine whether all orders of government are working well to deliver the required help to Canadians.

Design/methodology/approach

The theoretical foundations for this article are drawn from liberal and institutionalist approaches to comparative politics. Specifically, the proposed study draws on political tensions that occur because of actions of self-centered regional (provincial) governments who legitimize individual policies based on their self-centered economic and political objectives.

Findings

Nowadays, we can observe the primary role of the state in supporting and regulating the health governance systems, the economy and social life. Many informal groups have unstructured approach, which does not require them to follow existing strategies. The challenges caused by COVID-19 have led to the resurgence of collective, state-based approaches to the recovery. The key findings illuminate the importance of crisis communication activities which should be implemented properly. This implies that all disclosures must be timely and truthful.

Practical implications

The study helps to better understand the events that disrupt parts of the Canadian economy during pandemic. It reviews the essential functions that are critical for reliable operation of infrastructure services to ensure safety and well-being of the population. During the COVID-19, federal–provincial–territorial collaboration runs into resistance because of competing interests, resource constraints, legacies from past conflicts and lack of coordination. In contrast to managers, who often focus on tangible short-term results, today’s leadership more often seeks intangible long-term results. This means that the central–local government relations tend to be more informal.

Originality/value

In the face of external shock, such as COVID-19, it did not take much time for Canadian provincial governments to realize that they cannot cope with a wide range of challenges alone. In these circumstances, the narratives of how governments work together during the challenging time to impact their desired outcomes are of crucial importance.

Details

International Journal of Organizational Analysis, vol. 31 no. 1
Type: Research Article
ISSN: 1934-8835

Keywords

Article
Publication date: 12 September 2020

Claudio Baccarani, Federico Brunetti and Jacques Martin

The purpose of this paper is to tackle the grand issue of climate change in a managerial perspective by proposing a new type of management.

Abstract

Purpose

The purpose of this paper is to tackle the grand issue of climate change in a managerial perspective by proposing a new type of management.

Design/methodology/approach

Climate change has now been debated for many years, and in spite of different viewpoints, analyses and opinions, is a phenomenon that is accepted by all. There are thousands of studies on the nature of climate change and its consequences on the planet Earth and its inhabitants. However, there are few studies investigating the consequences of climate change on the founding tenets and practices of management. This paper aims to contribute to this facet of the issue. In the first part, it examines the main facts about climate change, their impact on businesses and proposes an adapted model of management for agriculture, industry, services and supply chains. In the second part, it advocates a shift in paradigm from the “maximization of profit” to the “maximization of well-being” as the foundation of a new managerial philosophy that can both address climate change and sustainability.

Findings

Companies and managers are in a much better position than politicians and consumers to find a solution to climate change problems for the very reason that they are not stupid in Cipolla's (2011) sense. Companies and managers do have the power to rewrite the rules of the game in order to get to a firm and management metamorphosis. Starting from a return to company ownership by and for the company itself (not just external shareholders), a switch in purpose from profit-seeking to people's well-being, fair remuneration of stakeholders, progress as a measure of success and long-term orientation are suggested as new tenets in management.

Research limitations/implications

Although this paper has several limitations (it may be too wide in scope, utopian, its ideas may sound unachievable and even sometimes naïve in their arguments), its starting point is very clear: the authors, as management scholars, must do something to try and stop the crash of economies and businesses in an ecological disaster. And its logic is very clear and straightforward as well: if people want things to change, then they have to change the foundations of management thinking, both in theory and in practice. The authors do not claim their solution is the only one or the best: avenues for future research aimed at providing better solutions are wide open from this point of view, and the authors genuinely encourage colleagues to continue in this direction and contribute to this work. What matters most, however, is to stop looking for precise answers to “wrong, well-defined, narrow problems” and to start looking for “approximate answers to important problems” (Brown et al., 2005) as the authors tried to do here.

Practical implications

Developing a new management operating model and foundations able to keep companies alive while not compromising mankind survival on planet Earth.

Originality/value

This paper addresses the Tourish (2020) challenge for purposeful research in management by providing some fresh ideas about the way companies and management principles and practices should change to prevent irreversible environmental damages.

Details

The TQM Journal, vol. 33 no. 3
Type: Research Article
ISSN: 1754-2731

Keywords

Article
Publication date: 1 August 2002

Peter McCullen and Denis Towill

“Bullwhip” describes the general tendency for small changes in end‐customer demand to be amplified within a production‐distribution system. A 10 per cent increase in sales to…

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Abstract

“Bullwhip” describes the general tendency for small changes in end‐customer demand to be amplified within a production‐distribution system. A 10 per cent increase in sales to end‐customers can precipitate a 40 per cent upswing in production and subsequent downswing (as excess stocks are depleted) within a three‐echelon supply chain. It is shown how proven material flow control principles significantly reduce bullwhip in a global supply chain. The evidence demonstrates that a methodology, which has evolved over several decades, provides a suitable framework for effective change. Bullwhip is not a new problem; it is a new name coined to describe a very well‐known problem. Some observed barriers to change are briefly reviewed.

Details

Supply Chain Management: An International Journal, vol. 7 no. 3
Type: Research Article
ISSN: 1359-8546

Keywords

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