Zijing Ye, Huan Li and Wenhong Wei
Path planning is an important part of UAV mission planning. The main purpose of this paper is to overcome the shortcomings of the standard particle swarm optimization (PSO) such…
Abstract
Purpose
Path planning is an important part of UAV mission planning. The main purpose of this paper is to overcome the shortcomings of the standard particle swarm optimization (PSO) such as easy to fall into the local optimum, so that the improved PSO applied to the UAV path planning can enable the UAV to plan a better quality path.
Design/methodology/approach
Firstly, the adaptation function is formulated by comprehensively considering the performance constraints of the flight target as well as the UAV itself. Secondly, the standard PSO is improved, and the improved particle swarm optimization with multi-strategy fusion (MFIPSO) is proposed. The method introduces class sigmoid inertia weight, adaptively adjusts the learning factors and at the same time incorporates K-means clustering ideas and introduces the Cauchy perturbation factor. Finally, MFIPSO is applied to UAV path planning.
Findings
Simulation experiments are conducted in simple and complex scenarios, respectively, and the quality of the path is measured by the fitness value and straight line rate, and the experimental results show that MFIPSO enables the UAV to plan a path with better quality.
Originality/value
Aiming at the standard PSO is prone to problems such as premature convergence, MFIPSO is proposed, which introduces class sigmoid inertia weight and adaptively adjusts the learning factor, balancing the global search ability and local convergence ability of the algorithm. The idea of K-means clustering algorithm is also incorporated to reduce the complexity of the algorithm while maintaining the diversity of particle swarm. In addition, the Cauchy perturbation is used to avoid the algorithm from falling into local optimum. Finally, the adaptability function is formulated by comprehensively considering the performance constraints of the flight target as well as the UAV itself, which improves the accuracy of the evaluation model.
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Wei Liu, Mi Zhou and Wen hong Zhao
There has long been a belief that authentic leadership positively impacts employee outcomes, consistently proven to be effective. However, is this conclusion universally…
Abstract
Purpose
There has long been a belief that authentic leadership positively impacts employee outcomes, consistently proven to be effective. However, is this conclusion universally applicable in any situation? To answer this question, we investigated the interaction effect between authentic leadership and two types of team conflict (task conflict and relationship conflict) on employee creativity as well as the mediating role of employee trust in the leader (affective-based and cognitive-based), looking to open up a new milestone for authentic leadership.
Design/methodology/approach
This study involved 589 employees across 75 teams, with data collected using a dual-wave, multi-source approach.
Findings
The results demonstrated that authentic leadership can enhance employee creativity, but this effect is not absolute. Specifically, the interaction between authentic leadership and task conflict negatively affected employee creativity, with this relationship mediated by cognitive-based trust. Conversely, there was no significant impact of authentic leadership on relationship conflict affecting creativity, nor was this relationship mediated by affective-based trust.
Originality/value
This study challenges the long-held belief that authentic leadership always positively impacts employee creativity. Moreover, it provides new perspectives on the different situations in which authentic leadership has varying impacts on employee creativity. Additionally, the study contributes to a further systematic and comprehensive understanding of the impact of authentic leadership.
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Abstract
Purpose
This paper examines the impact of the COVID-19 pandemic on low-carbon consumption of dairy products through informational interventions. The empirical findings seek to enlighten developing countries' efforts in coping with climate change and potential dietary transitions.
Design/methodology/approach
A randomized controlled trial was designed to examine the effects of purpose-differentiated information interventions on individual dairy consumption. The experiment recruited and randomly assigned 1,002 college students into four groups to receive (or not) environmental or/and health information interventions.
Findings
The empirical analysis finds that health and combined information interventions have a positive impact on dairy consumption, while environmental information interventions' effect on dairy consumption is insignificant. In the context of the pandemic, health information interventions positively affected participants' perceptions and preferences for dairy products by delivering knowledge about their role in boosting immunity. However, environmental information interventions failed to do the same things as their insignificant effects on both perception and preference.
Originality/value
Macro-external shocks, such as public health events, may offset the impact of universal information interventions promoting pro-environmental behaviors. For a smooth dietary transition to achieve long-term environmental sustainability, diverse stakeholders must be included in more individualized interventions to guide daily consumption, especially in developing countries with large populations.