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Article
Publication date: 27 July 2021

Xiaohuan Liu, Degan Zhang, Ting Zhang, Jie Zhang and Jiaxu Wang

To solve the path planning problem of the intelligent driving vehicular, this paper designs a hybrid path planning algorithm based on optimized reinforcement learning (RL…

Abstract

Purpose

To solve the path planning problem of the intelligent driving vehicular, this paper designs a hybrid path planning algorithm based on optimized reinforcement learning (RL) and improved particle swarm optimization (PSO).

Design/methodology/approach

First, the authors optimized the hyper-parameters of RL to make it converge quickly and learn more efficiently. Then the authors designed a pre-set operation for PSO to reduce the calculation of invalid particles. Finally, the authors proposed a correction variable that can be obtained from the cumulative reward of RL; this revises the fitness of the individual optimal particle and global optimal position of PSO to achieve an efficient path planning result. The authors also designed a selection parameter system to help to select the optimal path.

Findings

Simulation analysis and experimental test results proved that the proposed algorithm has advantages in terms of practicability and efficiency. This research also foreshadows the research prospects of RL in path planning, which is also the authors’ next research direction.

Originality/value

The authors designed a pre-set operation to reduce the participation of invalid particles in the calculation in PSO. And then, the authors designed a method to optimize hyper-parameters to improve learning efficiency of RL. And then they used RL trained PSO to plan path. The authors also proposed an optimal path evaluation system. This research also foreshadows the research prospects of RL in path planning, which is also the authors’ next research direction.

Details

Engineering Computations, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0264-4401

Keywords

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Article
Publication date: 12 September 2016

Yijing Lyu, Xing Zhou, Weiwen Li, Junbao Wan, Jie Zhang and Canhua Qiu

On the basis of social identity theory, this paper aims to predict and test the influence of abusive supervision on service employees’ proactive customer service…

Abstract

Purpose

On the basis of social identity theory, this paper aims to predict and test the influence of abusive supervision on service employees’ proactive customer service performance (PCSP) in the hotel industry.

Design/methodology/approach

Data were collected from 198 service employee-coworker dyads from 12 hotels in China. Previously developed and validated measures of abusive supervision, organizational identification, collectivism and PCSP were used and found to be highly reliable in this study.

Findings

Time-lagged data from 12 hotels in China reveal that abusive supervision negatively influences service employees’ PCSP, through organizational identification. In addition, employees’ collectivistic value orientation also strengthens the negative relationship between abusive supervision and organizational identification. These findings have several theoretical and managerial implications, especially for hospitality context.

Practical implications

First, the study suggests that hotels should design supervisors’ selection, training and monitoring to reduce mistreatment, which could be highly costly to employees’ identification and hence proactive behaviors. In addition, hotel supervisors are encouraged to learn to regulate their emotions by developing emotional management skills and interpersonal skills. Second, because collectivists are more likely to be affected by abusive supervisors, organizations should pay special attention to them by allocating more supportive resources, providing psychological comfort and expert counseling. Finally, hotels and managers should seek to meet individuals’ basic needs by fostering positive relationships between supervisors and employees, offering favorable treatment and connecting an organization’s goals with employees’ individual values. By doing so, employees’ organizational identification will be enhanced and hence contribute to PCSP.

Originality/value

First, scarcely any study has focused on negative types of leadership styles and how they affect employees’ PCSP. The authors address the research gap by extending the antecedent scope of PCSP to dark side management and provide empirical evidence about the suppressing effects of abusive supervision on PCSP. Second, the focus on organizational identification provides a new extension for social identity theory in application for incurring employees’ proactive behaviors. Third, this study provides a novel contribution by suggesting that the level of collectivism an employee holds can exacerbate the salience of abusive supervision.

Details

International Journal of Contemporary Hospitality Management, vol. 28 no. 9
Type: Research Article
ISSN: 0959-6119

Keywords

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Article
Publication date: 15 November 2019

Jie Leng, Junjie Wu, Ning Chen, Xiang Xu and Jie Zhang

This paper aims to develop an integrated and portable desktop 3D printer using direct extruding technology to expand applied material field. Different from conventional…

Abstract

Purpose

This paper aims to develop an integrated and portable desktop 3D printer using direct extruding technology to expand applied material field. Different from conventional fused deposition modeling (FDM) which uses polymer filaments as feedstock, the developed system can fabricate products directly using polymer pellets. And its printing properties are also investigated.

Design/methodology/approach

A conical screw-based extrusion deposition (CSBED) system was developed with a large taper conical screw to plasticize and extrude fed materials. The 3D printer was developed with assistance of precision positioning and controlling system. Biocompatible thermoplastic polyurethane (TPU) pellets were selected as raw materials for experiments. The influences of four processing parameters: nozzle temperature, fill vector orientation, layer thickness and infill density on the product’s internal structure and tensile properties were investigated.

Findings

It is concluded that the customized system has a high manufacturing accuracy with a diminutive global size and is suitable for printing soft materials such as TPU. Theoretical calculation shows the developed conical screw is more effective in plasticizing and extruding compared with conventional screw. Printed samples can achieve applicable tensile properties under harmonious parameter cooperation. Deposited materials are found to have voids among adjacent roads under unbefitting parameters.

Originality/value

The developed system efficiently improves material limitations compared to commercial FDM systems and exhibits great potential in medical field because soft materials such as biocompatible TPU pellets can be directly used.

Details

Rapid Prototyping Journal, vol. 26 no. 2
Type: Research Article
ISSN: 1355-2546

Keywords

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Article
Publication date: 1 February 2021

Chi-Chun Chen, Jian-Hong Wang, Hsing-Wen Wang and Jie Zhang

This research proposes an innovative fault-tolerant media content list management technology applied to the smart robot domain.

Abstract

Purpose

This research proposes an innovative fault-tolerant media content list management technology applied to the smart robot domain.

Design/methodology/approach

A fault tolerant Content List Management Unit (CLMU) for real-time streaming systems focusing on smart robot claw machines is proposed to synchronize and manage the hyperlink stored on media servers. The fault-tolerant mechanism is realized by the self-healing method. A media server allows exchanging the hyperlink within the network through the CLMU mechanism.

Findings

Internet users can access the current multimedia information, and the multimedia information list can be rearranged appropriately. Furthermore, the service of the proposed multimedia system should be uninterrupted even when the master media server fails. Therefore, one of the slave media servers enables the Content List Service (CLS) of the proposed CLMU and replaces the defunct master media server.

Originality/value

The recovery time is less than 1.5 seconds. The multimedia transmission is not interrupted while any one of the media servers keeps functioning. The proposed method can serve to stabilize the system of media servers in a smart robot domain.

Details

Library Hi Tech, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0737-8831

Keywords

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Article
Publication date: 14 December 2017

Bo Xin, Yuan Li, Jian-feng Yu and Jie Zhang

The purpose of this paper is to investigate the nonlinear dynamics of the aircraft assembly lines. An approach for modeling and analyzing the production rate of an…

Abstract

Purpose

The purpose of this paper is to investigate the nonlinear dynamics of the aircraft assembly lines. An approach for modeling and analyzing the production rate of an aircraft assembly line is introduced using the chaos theory.

Design/methodology/approach

First, two key system variables including reliability and learning ability are considered to control the dynamics model. The discrete-time dynamics equation of the production rate is established as a function of the reliability and the learning rate. Then an improved Gauss-learning curve is proposed and applied to aircraft assembling condition. Finally, the bifurcation diagrams and the maximal Lyapunov exponents are used and applied to the experimental study to analyze the dynamic behavior under different combinations of parameters.

Findings

On the basis of the experimental study, it is shown that chaotic behavior really exists in the aircraft assembly lines. The reliability and the Gauss-learning curve can nonlinearly affect the production rate.

Originality/value

This paper applied nonlinear dynamics and chaotic theory to the production analyses of the aircraft assembly lines for the first time. The proposed model has been successfully applied to a practical case, and the result justifies its advantage as well as feasibility to both theory and engineering application.

Details

Assembly Automation, vol. 38 no. 1
Type: Research Article
ISSN: 0144-5154

Keywords

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Article
Publication date: 8 April 2019

Gavin Jiayun Wu, Zhenning “Jimmy” Xu, Saeed Tajdini, Jie Zhang and Lei Song

To unlock social media’s value, this study aims to integrate insights from several theoretical perspectives and the relevant literature, developing an extended social…

Abstract

Purpose

To unlock social media’s value, this study aims to integrate insights from several theoretical perspectives and the relevant literature, developing an extended social media analytics framework. It identifies the stages underlying the social media analytics process and tests the framework in three important and interconnected areas: social media (Twitter), new product adoption (iWatch and Google Glass) and social media analytic techniques (text mining and sentiment analysis).

Design/methodology/approach

Based upon a systematic review of different research approaches, theories and media types, this paper presents and tests an extended framework in three important and interconnected areas mentioned above.

Findings

This paper offers a theory-driven social media analytics framework. It validates the framework by providing concrete processes, examples, evidence and insights related to three chosen areas mentioned above, thereby helping managers create effective and efficient social media and new product development strategies.

Originality/value

This paper integrates insights from theories of the middle range (Merton, 1949), Campbell’s (1965) model of sociocultural evolution and Fan and Gordon’s (2014) social media analytics framework, developing its own extended social media analytics framework and validating it in three important and interconnected areas mentioned above. This paper demonstrates not only how the proposed framework can be applied to the context of new product development, but also how social media are transforming research approaches (qualitative, quantitative and mixed method) and the very nature of business itself (increased importance of digital business).

Details

Qualitative Market Research: An International Journal, vol. 22 no. 2
Type: Research Article
ISSN: 1352-2752

Keywords

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Article
Publication date: 13 October 2020

Sun Liu and Jie Zhang

This study investigates whether listed firms using equity incentive plans (EIPs) adopt more conservative accounting in China's unique corporate setting.

Abstract

Purpose

This study investigates whether listed firms using equity incentive plans (EIPs) adopt more conservative accounting in China's unique corporate setting.

Design/methodology/approach

Based on a sample of 2,243 listed firms and 9,950 firm-year observations for the period of 2008–2017, this study employs piecewise cross-sectional regression models with year and industry fixed effects to examine the associations proposed in the research hypotheses.

Findings

This study finds a positive relationship between the adoption of EIPs and accounting conservatism in listed Chinese firms. Further analyses reveal that this positive relationship is more pronounced when listed Chinese firms use restricted stock units (RSUs), instead of stock options, in their EIPs.

Research limitations/implications

Unlike many early studies, this paper empirically investigates the impacts of two different types of equity incentives – stock options and RSUs – and thus contributes to accounting and corporate governance literature by providing a better understanding of the impacts of different types of equity incentives on financial reporting quality. However, this study does not consider other alternative equity incentive measurements because of the limited data regarding Chinese firm's executive compensation.

Practical implications

This study offers investors and policymakers in China some insight into how accounting conservatism in listed firms might be shaped by equity incentives used in their managerial compensation schemes.

Originality/value

This study is one of the few that examines the effects of using equity incentives in a large emerging market. It offers support for the view that the recent introduction of policies on EIPs by the Chinese government has an overall positive impact on listed firm's financial reporting quality, as reflected by greater degrees of accounting conservatism.

Details

Journal of Applied Accounting Research, vol. 22 no. 1
Type: Research Article
ISSN: 0967-5426

Keywords

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Article
Publication date: 5 January 2018

Liana Victorino, Joy M. Field, Ryan W. Buell, Michael J. Dixon, Susan Meyer Goldstein, Larry J. Menor, Madeleine E. Pullman, Aleda V. Roth, Enrico Secchi and Jie J. Zhang

The purpose of this paper is to identify research themes in service operations that have great potential for exciting and innovative conceptual and empirical work. To…

Abstract

Purpose

The purpose of this paper is to identify research themes in service operations that have great potential for exciting and innovative conceptual and empirical work. To frame these research themes, the paper provides a systematic literature review of operations articles published in the Journal of Service Management (JOSM). The thorough review of published work in JOSM and proposed research themes are presented in hopes that they will inspire impactful research on service operations. These themes are further developed in a companion paper, “Service operations: what’s next?” (Field et al., 2018).

Design/methodology/approach

The JOSM Service Operations Expert Research Panel conducted a Delphi study to generate research themes where leading-edge research on service operations is being done or has yet to be done. Nearly 700 articles published in JOSM from its inception through 2016 were reviewed and classified by discipline focus. The subset of service operations articles was then further categorized according to the eight identified research themes plus an additional category that primarily represented traditional manufacturing approaches applied in service settings.

Findings

From the Delphi study, the following key themes emerged: service supply networks, evaluating and measuring service operations performance, understanding customer and employee behavior in service operations, managing servitization, managing knowledge-based service contexts, managing participation roles and responsibilities in service operations, addressing society’s challenges through service operations, and the operational implications of the sharing economy. Based on the literature review, approximately 20 percent of the published work in JOSM is operations focused, with earlier articles predominantly applying traditional manufacturing approaches in service settings. However, the percentage of these traditional types of articles has been steadily decreasing, suggesting a trend toward dedicated research frameworks and themes that are unique to the design and management of services operations.

Originality/value

The paper presents key research themes for advancing conceptual and empirical research on service operations. Additionally, a review of the past and current landscape of operations articles published in JOSM offers an understanding of the scholarly conversation so far and sets a foundation from which to build future research.

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Article
Publication date: 8 April 2020

Philippa Hunter-Jones, Nathaniel Line, Jie J. Zhang, Edward C. Malthouse, Lars Witell and Brooke Hollis

This paper considers the question: what would happen if healthcare providers, like their counterparts in the hospitality industry, adopted the principles of customer…

Abstract

Purpose

This paper considers the question: what would happen if healthcare providers, like their counterparts in the hospitality industry, adopted the principles of customer experience management (CEM) in order to facilitate a more holistic and personalized patient experience? It proposes an alternative vision of the patient experience by adding to an emerging hospitality–healthcare literature base, this time focusing upon CEM. A hospitality-oriented patient experience (HOPE) framework is introduced, designed to enhance the patient experience across all the touchpoints of the healthcare journey.

Design/methodology/approach

This is a conceptual paper that draws upon three distinct literatures: hospitality literature; healthcare literature; and CEM literature. It utilizes this literature to develop a framework, the HOPE framework, designed to offer an alternative lens to understanding the patient experience. The paper utilizes descriptions of three unique patient experiences, one linked to chronic pain, a second to gastro issues and a third to orthopedic issues, to illustrate how adopting the principles of hospitality management, within a healthcare context, could promote an enhanced patient experience.

Findings

The main theoretical contribution is the development of the HOPE framework that brings together research on CEM with research on cocreative customer practices in health care. By selecting and connecting key ingredients of two separate research streams, this vision and paradigm provide an alternative lens into ways of addressing the key challenges in the implementation of person-centered care in healthcare services. The HOPE framework offers an actionable roadmap for healthcare organizations to realize greater understanding and to operationalize new ways of improving the patient experience.

Originality/value

This paper applies the principles of hospitality and CEM to the domain of health care. In so doing it adds value to a hospitality literature primarily focused upon extensive employee–customer relationships. To a healthcare literature seeking to more fully understand a person-centered care model typically delivered by a care team consisting of professionals and family/friends. And to a CEM literature in hospitality, which seeks to facilitate favorable employee–customer interactions. Connecting these separate literature streams enables an original conceptual framework, a HOPE framework, to be introduced.

Details

Journal of Service Management, vol. 31 no. 5
Type: Research Article
ISSN: 1757-5818

Keywords

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Article
Publication date: 1 February 2018

Joy M. Field, Liana Victorino, Ryan W. Buell, Michael J. Dixon, Susan Meyer Goldstein, Larry J. Menor, Madeleine E. Pullman, Aleda V. Roth, Enrico Secchi and Jie J. Zhang

The purpose of this paper is to present exciting and innovative research questions in service operations that are aligned with eight key themes and related topics…

Abstract

Purpose

The purpose of this paper is to present exciting and innovative research questions in service operations that are aligned with eight key themes and related topics determined by the Journal of Service Management (JOSM) Service Operations Expert Research Panel. By offering a good number of such research questions, this paper provides a broad range of ideas to spur conceptual and empirical research related to service operations and encourage the continued creation of deep knowledge within the field, as well as collaborative research across disciplines that develops and incorporates insights from service operations.

Design/methodology/approach

Based on a Delphi study, described in the companion article, “Service Operations: What Have We Learned?,” the panel identified eight key research themes in service operations where leading-edge research is being done or has yet to be done (Victorino et al., 2018). In this paper, three or four topics within each theme are selected and multiple questions for each topic are proposed to guide research efforts. The topics and questions, while wide-ranging, are only representative of the many ongoing research opportunities related to service operations.

Findings

The field of service operations has many interesting research topics and questions that are largely unexplored. Furthermore, these research areas are not only increasingly integrative across multiple themes within operations but often transcend functional disciplines. This creates opportunities for ever more impactful research with a greater reach throughout the service system and suggests that service researchers, regardless of functional affiliation, can contribute to the ongoing conversation on the role of service operations in value creation.

Originality/value

Leveraging the collective knowledge of the JOSM Service Operations Expert Research Panel to expand on the research themes generated from the Delphi study, novel questions for future study are put forward. Recognizing that the number of potential research questions is virtually unlimited, summary questions by theme and topic are also provided. These questions represent a synopsis of the individual questions and can serve as a quick reference guide for researchers interested in pursuing new directions in conceptual and empirical research in service operations. This summary also serves as a framework to facilitate the formulation of additional research topics and questions.

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