scholarly journals A Fuzzy Path Selection Strategy for Aircraft Landing on the Carrier

Author(s):  
Xichao Su ◽  
Yu Wu ◽  
Jingyu Song ◽  
Peilong Yuan

Landing is one of the most dangerous tasks in all the operations on the aircraft carrier, and the landing safety is very important to the pilot and the flight deck operation. The problem of landing path selection is studied in this paper as there several candidates corresponding to different situations. A fuzzy path selection strategy is proposed to solve the problem considering the fuzziness of environmental information and human judgment, and the goal is to provide the pilot with more reasonable decision. The strategy is based on Fuzzy Multi-attribute Group Decision Making (FMAGDM), which has been widely used in industry. Firstly, the background of the path selection problem is given. Then the essential elements of the problem are abstracted to build the conceptual model. A group decision-making method is applied to denote the preference of each decision maker for each alternative route, and the optimal landing path under the current environment is determined taking into account the knowledge and the weight of both decision makers. Experimental studies under different setups, i.e., different environments, are carried out. The results demonstrate that the proposed path selection strategy is validated in different environments, and the optimal landing paths corresponding to different environments can be determined.

Author(s):  
Donna J. Mosier ◽  
Vitaly J. Dubrovsky ◽  
Danial L. Clapper

Classic experimental studies on restrictive communication networks concluded that network patterns and status congruency affect efficiency, satisfaction, and leadership of group decision making. This experiment had a two-fold purpose: (1) to determine if computer-mediated communication would effect the results of these studies; and (2) to assess centrality of network position as a context cue of social status. The results suggested that network pattern retained its influence in computer-mediated groups, while influence of status congruence was weakened by the equalization effects of the computer media. The results also indicated that a center position in the computer network did serve a social-context cue of status: a high-status person exerted status influence only occupying the hub position. Thus, assignment of group members to network positions of equal or different centrality can be used as means of controlling influence of status and authority in computer-mediated groups.


2020 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Dawn H. Nicholson ◽  
Tim Hopthrow ◽  
Georgina Randsley de Moura

PurposeThe “Individual Preference Effect” (IPE: Faulmüller et al., 2010; Greitemeyer and Schulz-Hardt, 2003; Greitemeyer et al., 2003), a form of confirmation bias, is an important barrier to achieving improved group decision-making outcomes in hidden profile tasks. Group members remain committed to their individual preferences and are unable to disconfirm their initial suboptimal selection decisions, even when presented with full information enabling them to correct them, and even if the accompanying group processes are perfectly conducted. This paper examines whether a mental simulation can overcome the IPE.Design/methodology/approachTwo experimental studies examine the effect of a mental simulation intervention in attenuating the IPE and improving decision quality in an online individual hidden profile task.FindingsIndividuals undertaking a mental simulation achieved higher decision quality than those in a control condition and experienced a greater reduction in confidence in the suboptimal solution.Research limitations/implicationsResults suggest a role for mental simulation in overcoming the IPE. The test environment is an online individual decision-making task, and broader application to group decision-making is not tested.Practical implicationsSince mental simulation is something we all do, it should easily generalise to an organisational setting to improve decision outcomes.Originality/valueTo the authors' knowledge, no study has examined whether mental simulation can attenuate the IPE.


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