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Article
Publication date: 15 November 2018

Siqi Li and Yimin Deng

The purpose of this paper is to propose a new algorithm for independent navigation of unmanned aerial vehicle path planning with fast and stable performance, which is based on…

231

Abstract

Purpose

The purpose of this paper is to propose a new algorithm for independent navigation of unmanned aerial vehicle path planning with fast and stable performance, which is based on pigeon-inspired optimization (PIO) and quantum entanglement (QE) theory.

Design/methodology/approach

A biomimetic swarm intelligent optimization of PIO is inspired by the natural behavior of homing pigeons. In this paper, the model of QEPIO is devised according to the merging optimization of basic PIO algorithm and dynamics of QE in a two-qubit XXZ Heisenberg System.

Findings

Comparative experimental results with genetic algorithm, particle swarm optimization and traditional PIO algorithm are given to show the convergence velocity and robustness of our proposed QEPIO algorithm.

Practical implications

The QEPIO algorithm hold broad adoption prospects because of no reliance on INS, both on military affairs and market place.

Originality/value

This research is adopted to solve path planning problems with a new aspect of quantum effect applied in parameters designing for the model with the respective of unmanned aerial vehicle path planning.

Details

Aircraft Engineering and Aerospace Technology, vol. 91 no. 1
Type: Research Article
ISSN: 1748-8842

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Article
Publication date: 1 November 2011

Yiming Hu, Siqi Li, Thomas W. Lin and Shilei Xie

Banks are the major suppliers of external funds for companies in China. The purpose of this paper is to examine whether Chinese banks exercise effective monitoring over borrowers…

1628

Abstract

Purpose

Banks are the major suppliers of external funds for companies in China. The purpose of this paper is to examine whether Chinese banks exercise effective monitoring over borrowers in two lending decisions, including loan interest rates and loan renewals.

Design/methodology/approach

Using a sample of Chinese public industrial firms from 2000 to 2005, the authors perform multivariate regression analysis to investigate whether banks adjust their loan interest rates and consider loan renewal decisions in response to borrowers financial performance. The authors also examine these bank lending decisions before and after 2003, when the major banking reforms started to take place in China.

Findings

A negative relation was found between the loan interest rate spread and the financial performance of borrowers. However, a negative relation was found between loan renewals and the financial performance of borrowers, consistent with firms in financial difficulties being in need of more funding and hence more likely to get its bank loans renewed. Additionally, it was found that the factors banks consider when making loan decisions vary before and after 2003.

Originality/value

The authors' findings suggest that Chinese banks play a limited role in monitoring and disciplining borrowers through adjustments of loan interest rates, and that their loan renewal decisions for firms with poor financial performance highlight banks' financing, instead of monitoring role in this transition economy. These findings provide empirical evidence on bank governance in a transition economy dominated by state‐owned enterprises. The paper contributes to the literature by constructing an alternative loan renewal measure using financial statement information.

Details

Review of Accounting and Finance, vol. 10 no. 4
Type: Research Article
ISSN: 1475-7702

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Article
Publication date: 30 May 2023

Ganghua Chen, Siqi Bie, Carol Zhang and Zhenghuan Li

This study aims to contribute to social identity theory in tourism by exploring the reflections of Chinese tourists visiting North Korea and how they negotiate their intergroup…

331

Abstract

Purpose

This study aims to contribute to social identity theory in tourism by exploring the reflections of Chinese tourists visiting North Korea and how they negotiate their intergroup identity in this similar-others destination.

Design/methodology/approach

Data were collected via online platforms and in-depth interviews. A qualitative approach, i.e. thematic analysis, was used to analyse the two sets of data.

Findings

Results showed that when encountering North Koreans perceived as similar others amid the social, economic and political environments in which they were embedded, Chinese tourists often categorised themselves as ordinary tourists, preferentially treated tourists and vicarious tourists based on intergroup similarities to North Koreans. They also performed intergroup comparison to boost their self-esteem at group and collective levels and developed corresponding strategies to generate distinct emotional group commitments.

Practical implications

It is recommended that destinations reinforce the friendly and unique relationship with their similar-others source markets to improve their attractiveness. Destinations should also strive to enhance the experience of tourists from their similar-others markets by arousing their positive collective-level affection, emotional resonance and nostalgic memories and avoiding negative emotions.

Originality/value

This study offers a theoretical framework analysing the features of tourists’ social identities while visiting a similar-others destination, contributing to our understanding of the interactive and contingency nature of social identity in tourism, and responding to the call for addressing the broader social contexts in which tourists’ group identity is embedded.

目的

本文致力于探索赴朝中国游客的反思以及他们在这个“类似他者”目的地如何协商群际身份, 以对旅游领域的身份认同理论做出贡献。

设计/方案

本文运用主题分析方法; 资料来源于网络文本和深度访谈。

发现

当中国游客面对被视为“类似他者”的朝鲜人时(具有相似的社会、经济和政治环境), 他们会根据与朝鲜人的群际相似性, 将自我分类为“普通游客”、“受优待者”和“过来人”三类。此外, 他们还会通过群际比较来提高群体层面和集体层面的自尊, 并且采取对应策略以产生不同的群体承诺。

价值

本文提出了一个分析游客访问“类似他者”目的地时的社会认同的理论框架, 对理解旅游中的社会认同的互动性和偶然性做出了贡献, 并响应了在考察游客群体认同时关注其所处的更广泛的社会背景的呼吁。

实践启示

目的地应该强化它们与“类似他者”客源市场之间友好且独特的关系, 以提升自身吸引力。目的地还应该唤醒游客积极的集体情感和怀旧, 产生主客情感共鸣, 并避免负面情绪, 以尽力提升来自“类似他者”客源地的游客的体验。

Propósito

Este estudio pretende contribuir a la teoría de la identidad social en turismo mediante la exploración de las reflexiones de los turistas chinos que visitan Corea del Norte y cómo negocian su identidad intergrupal en este destino similar a otros.

Diseño/metodología/enfoque

Los datos se recogieron mediante plataformas en línea y entrevistas en profundidad. Se utilizó un enfoque cualitativo a través de análisis temático para analizar los dos conjuntos de datos.

Resultados

Los resultados mostraron que, al encontrarse con norcoreanos percibidos como otros similares en el entorno social, económico y político en el que estaban integrados, los turistas chinos a menudo se categorizaban a sí mismos como turistas ordinarios, turistas con trato preferente y turistas vicarios basándose en las similitudes intergrupales con los norcoreanos. También, realizaban comparaciones intergrupales para aumentar su autoestima a nivel grupal y colectivo, y desarrollaban las estrategias correspondientes para generar distintos compromisos emocionales grupales.

Originalidad/valor

Se presenta un marco teórico en el que se analizan las características de las identidades sociales de los turistas que visitan un destino similar a otro, lo que contribuye a nuestra comprensión de la naturaleza interactiva y contingente de la identidad social en turismo y responde a la necesidad de abordar los contextos sociales más amplios en los que se inserta la identidad de grupo de los turistas.

Implicaciones prácticas

Se recomienda que los destinos refuercen las relaciones amistosas y únicas con sus mercados emisores similares para mejorar su atractividad. Los destinos deberían esforzarse por mejorar la experiencia de los turistas de sus mercados emisores similares, estimulando su afecto positivo a nivel colectivo, su resonancia emocional y sus recuerdos nostálgicos, y evitando las emociones negativas.

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Article
Publication date: 1 March 2018

Li Sun, Qiushi Bian and Siqi Fan

The accelerating process of economic globalization and the increasingly fierce international competition are conducive to the promotion of the construction of the urban regional…

19

Abstract

The accelerating process of economic globalization and the increasingly fierce international competition are conducive to the promotion of the construction of the urban regional innovation system. Based on this, the Bayesian discriminant model was established in this paper, and the development stage of the regional innovation system was prejudged. Then according to the discriminant analysis, the results of the pre judgment were tested. In addition, based on the innovation system of urban planning and construction, a framework of urban planning analysis based on regional innovation system was put forward, which was used to guide regional planning and implementation, and was applied to the planning of Shanxi science and technology innovation city. It is proved that the fuzzy evaluation system based on Bayes is beneficial to the innovative planning of the new city.

Details

Open House International, vol. 43 no. 1
Type: Research Article
ISSN: 0168-2601

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Article
Publication date: 2 October 2017

Siqi Dou, Junjie Li and Fei Kang

Parameter identification is an important issue in structural health monitoring and damage identification for concrete dams. The purpose of this paper is to introduce a novel…

253

Abstract

Purpose

Parameter identification is an important issue in structural health monitoring and damage identification for concrete dams. The purpose of this paper is to introduce a novel adaptive fireworks algorithm (AFWA) into inverse analysis of parameter identification.

Design/methodology/approach

Swarm intelligence algorithms and finite element analysis are integrated to identify parameters of hydraulic structures. Three swarm intelligence algorithms: AFWA, standard particle swarm optimization (SPSO) and artificial bee colony algorithm (ABC) are adopted to make a comparative study. These algorithms are introduced briefly and then tested by four standard benchmark functions. Inverse analysis methods based on AFWA, SPSO and ABC are adopted to identify Young’s modulus of a concrete gravity dam and a concrete arch dam.

Findings

Numerical results show that swarm intelligence algorithms are powerful tools for parameter identification of concrete structures. The proposed AFWA-based inverse analysis algorithm for concrete dams is promising in terms of accuracy and efficiency.

Originality/value

Fireworks algorithm is applied for inverse analysis of hydraulic structures for the first time, and the problem of parameter selection in AFWA is studied.

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Article
Publication date: 5 June 2017

Sheng Huang, Guangyu Ye, Jinbo Zhou and Tiantian Jin

This paper aims to reveal the influencing mechanism of the interaction between institutional environments in the home and host country on the accelerated internationalization of…

777

Abstract

Purpose

This paper aims to reveal the influencing mechanism of the interaction between institutional environments in the home and host country on the accelerated internationalization of entrepreneurial enterprises from emerging economies (EE). The authors want to open the black box of home-country institutional environments’ moderating mechanism on the relationship between host-country institutional environments and accelerated internationalization.

Design/methodology/approach

The authors chose a massive interview method and case study method to answer this question. According to our standards, the authors chose four high-tech companies in Guangdong and Guangxi provinces as case study samples. During investigation in the four case companies, the authors collected print data of 150 pages and electric data of 3 pages. Then, the authors excavated concepts in data through open coding, axial coding and select-type coding and identified concepts’ dimensions and connections between them.

Findings

Well-developed home-country institutions can reduce the inhibitory effect of under-developed host-country institutions on the accelerated internationalization of entrepreneurial enterprises from emerging economies. Under-developed institutional environments in the home country are beneficial for entrepreneurial enterprises from EE to develop the institutional capability for entrepreneurial enterprises with stronger institutional capability from emerging economies. The inhibitory effect of under-developed institutional environments in the host country on their accelerated internationalization is weaker. The positive moderating role played by institutional voids in the home country on the relationship between institutional voids in the host country and the accelerated internationalization are mediated by the institutional capability of entrepreneurial enterprises from emerging economies.

Research limitations/implications

The authors just refined the definition of institutional capability and divided its dimensions. Issues such as operationalization of institutional capability and the development of measurement scale are also worthy for future quantitative research. Considering the inherent defect of case study and that these four case companies are from Chinese high-tech industry, the external validity our research may be limited. The theoretical model that was constructed generally captured the relationships between dual institutional environments, institutional capability and EE entrepreneurial firms’ accelerated internationalization decision. Future studies may use a large-scale sample to verify the all propositions the authors introduced to draw more steady and reliable empirical study results.

Practical implications

The conclusions have significant implications for governments in EE to construct friendly institutional environments for international entrepreneurship and for entrepreneurial firms to implement internationalization strategies.

Social implications

Policy makers should establish well-developed normative and cognitive institutional environment by cultivating global-orientated and open national culture and organizing experience exchange conference, thereby speeding up the implementation of internationalization strategies and further improving international competitiveness for a country.

Originality/value

First, the authors defined institutional capability as firms’ ability of establishing relationships with institution actors, adapting to institutional contexts, changing existing institutions or creating new ones to gain potential interests and suggested that it consists of three dimensions. Second, institutional voids in the home country positively moderate the relationship between under-developed institutional environments in the host country and the accelerated internationalization of entrepreneurial firms from EE. At last, institutional capability of firms negatively moderates the relationship between under-developed institutional environments in the host country and the accelerated internationalization of entrepreneurial firms from EE.

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Article
Publication date: 31 July 2023

Lei Li and Siqi An

This paper aims to investigate analytical solutions of natural frequencies and mode shapes of Euler-Bernoulli beams with step changes in the stiffness.

131

Abstract

Purpose

This paper aims to investigate analytical solutions of natural frequencies and mode shapes of Euler-Bernoulli beams with step changes in the stiffness.

Design/methodology/approach

In this work, analytical solutions for a beam with a single discontinuity was performed. Subsequently, based on an effective matrix formulation, the closed-form expressions of the single discontinuity beam could be conveniently extended to stepped beams with multiple stiffness discontinuities.

Findings

The results of the study show that the natural frequency of the beam can be adjusted by the local stiffness variation, and step location plays a significant role in free vibration responses.

Originality/value

The effects of the stiffness of the segment and step location on the natural frequencies of the stepped beams under different boundary conditions were examined using the proposed analytical scheme. This study provides insights into the design of variable-stiffness beam structures with the capability to adjust natural frequencies.

Details

Multidiscipline Modeling in Materials and Structures, vol. 19 no. 5
Type: Research Article
ISSN: 1573-6105

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Article
Publication date: 10 September 2021

Yucheng Zhang, Zhongwei Hou, Xingxing Zhou, Yumeng Yue, Siqi Liu, XiaoXiao Jiang and Ling Li

Despite recent organizational behavior studies have witnessed considerable progress in abusive supervision research; some demerits for both theory and methodology still remain in…

694

Abstract

Purpose

Despite recent organizational behavior studies have witnessed considerable progress in abusive supervision research; some demerits for both theory and methodology still remain in the past years. To clarify the current state of knowledge in the field, this study aims to analyze the current state of theories and methods on abusive supervision and provides a detailed future research agenda.

Design/methodology/approach

This paper conducted a literature review for both theory and methodology of the abusive supervision research using a content analysis of 134 publications.

Findings

For the theory part, this paper summarized the theories that had been applied to explain the relationship between abusive supervision and its consequences as well as antecedents. For the methodology part, this paper outlined some critical issues regarding country of origin, research design, measurement, analysis strategy and also summarized with a discussion of the relationship between methodological issues and article impact. Finally, this paper concluded by presenting an agenda for future abusive supervision research regarding both theory and methodology.

Originality/value

First, this paper summarizes the main theories, antecedents and consequences often used in abusive supervision research to allow scholars to carry out theoretically driven research investigating abusive supervision in the future. Second, through a content analysis of the methods sections of abusive supervision research in the samples (i.e. country of origin, research design, measurement and analytical procedures), this paper identified the potential reasons underlying the inconsistency in the conclusions of abusive supervision research and provide some guidance for future empirical studies. Third, based on the qualitative review, this paper provides an agenda for future research investigating abusive supervision by developing a content-specific theoretical framework to benchmark abusive supervision research against other research related to leadership and offers an accurate response to scholars’ criticisms of abusive supervision research.

Details

Chinese Management Studies, vol. 16 no. 3
Type: Research Article
ISSN: 1750-614X

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Article
Publication date: 12 February 2025

Ruizhi Li, Fangzhou Wang, Siqi Liu, Ruiqi Xu, Minghao Yin and Shuli Hu

Maximum k vertex cover problem is a significant combinatorial optimization problem with various applications, such as transportation planning, social networks and sensor…

14

Abstract

Purpose

Maximum k vertex cover problem is a significant combinatorial optimization problem with various applications, such as transportation planning, social networks and sensor placement. Up to now, no practical algorithm has ever been proposed to solve this problem. Therefore, this paper aims to present an efficient local search algorithm LSKVC combining three methods for it.

Design/methodology/approach

First, the quick incremental evaluation method is proposed to update the related vertex scores following each addition or removal incrementally rather than recalculating them, which can speed up the algorithm. Second, the configuration checking method forbids vertices whose configuration has not changed since the last removal from being added into the candidate solution again, which can avoid the cycling problem effectively. Third, the two-stage exchange method swaps the pairs of inside and outside vertices separately rather than simultaneously, which can guarantee the tradeoff between the accuracy and complexity of the algorithm.

Findings

The proposed algorithm LSKVC is compared with the traditional GRASP algorithm and the well-known commercial solver CPLEX on DIMACS and BHOSLIB benchmarks. For the best solutions, the LSKVC algorithm is significantly superior to GRASP and CPLEX on DIMACS instances and the CPLEX solver fails, and the LSKVC algorithm slightly outperforms GRASP on the BHOSLIB instances. In addition, we undertake comparative studies of the offered methodologies and demonstrate their efficacy.

Originality/value

In previous research, the focus on the maximum k-vertex cover problem primarily centered around exact algorithms and approximation algorithms, with limited application of heuristic algorithms. While heuristic algorithms have been well-explored for the closely related Minimum Vertex Cover problem, they have seen limited application in the context of the maximum k-vertex cover problem. Consequently, existing algorithms designed for the Minimum Vertex Cover problem do not exhibit satisfactory performance when applied to the maximum k-vertex cover problem. In response to this challenge, we have undertaken algorithmic improvements specifically tailored to address this issue.

Details

Data Technologies and Applications, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 2514-9288

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Article
Publication date: 16 January 2017

Wenxue Lu, Zhi Li and Siqi Wang

Justice, although well developed in the organisational field, has not been given adequate attention in the area of construction project dispute negotiations. Based on previous…

1607

Abstract

Purpose

Justice, although well developed in the organisational field, has not been given adequate attention in the area of construction project dispute negotiations. Based on previous studies, the purpose of this paper is to more elaborately discuss whether each dimension of justice (distributive, procedural and interactional) is important for negotiators to cooperate in construction project dispute negotiation and whether their impact was moderated by the completeness of construction contract.

Design/methodology/approach

A survey of 164 prime negotiators from different construction projects was conducted. A stepwise multiple regression was employed to test the impact of each dimension of justice, and then a moderated multiple regression model was used to test the moderating effect of contract completeness.

Findings

The results indicated that, while distributive justice is related to cooperative behaviours, the impact of procedural justice and interactional justice also have great impact, and even more significantly related to cooperative behaviours. Moreover, while contractual obligatoriness positively moderates the relationship between procedural justice and cooperative behaviours, the term specificity negatively moderates the relationship between procedural and interactional justice and cooperative behaviours.

Research limitations/implications

First, the authors aimed to test the effect of justice on cooperative behaviours in construction dispute negotiations originally, but did not determine whether their relationship is mediated by any other factors. Second, contractual governance was chosen as the moderator; other factors may also influence behaviours in project dispute negotiations.

Practical implications

First, project dispute negotiators should not focus their attention solely on the distribution of the negotiation issues. For a cooperative approach, negotiators should also give strong consideration to whether their offers reflect procedural justice and whether their opponents are being treated fairly. Second, while contractual design may affect the frame surrounding the negotiations to help negotiators achieve an integrated outcome, they should give more attention to certain forms of justice.

Originality/value

In contrast to previous studies, the authors defined all three forms of justice in project dispute negotiations, and by adding all three forms of justice into the model, the authors attempted to investigate whether distributive, procedural and interactional justice were all related to cooperative behaviours in project dispute negotiations and to ascertain the extent to which each form of justice is important. Furthermore, the authors explored variations in the importance of each form of justice in negotiations under different contractual conditions.

Details

Engineering, Construction and Architectural Management, vol. 24 no. 1
Type: Research Article
ISSN: 0969-9988

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