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Verbal and vibrotactile cues on multiuser usability within collaborative virtual environments
Virtual Reality ( IF 4.2 ) Pub Date : 2018-11-28 , DOI: 10.1007/s10055-018-0375-y Aida Erfanian , Yaoping Hu
Virtual Reality ( IF 4.2 ) Pub Date : 2018-11-28 , DOI: 10.1007/s10055-018-0375-y Aida Erfanian , Yaoping Hu
Suitable cues for communication are crucial to multiuser usability of collaborative virtual environments (VEs). Although verbal cues are common among users, vibrotactile cues are nonverbal to facilitate conventionally interaction with objects. Few research efforts have examined the role of verbal and vibrotactile cues on multiuser usability of a collaborative VE. This paper hence presents assessments of verbal and vibrotactile cues, as well their combination, on affecting multiuser usability of the VE. The VE resolved conflicts of interactive commands issued by peer users through a dynamic priority (DP) model, which granted interaction to a user based on the recency of his/her gained interactions. As revealed in the existing work, the DP model yielded perceived equality in interaction (EII) among users to promote multiuser satisfaction. The assessments utilized metrics of multiuser usability, which we proposed for the components of both ISO/IEC 2050:2011 and 25022:2016 standards. The metrics considered collective outcomes of the users, differing from existing metrics of measuring individual experiences. We first conducted two baseline evaluations within the VE. One evaluation investigated how verbal cues affect EII and multiuser usability; another evaluation studied how vibrotactile cues influence the effect of the DP model. Based on the evaluations, we then undertook a study to assess the effect of combining verbal and vibrotactile cues on multiuser usability of the VE. We observed that both cues had no effect on the DP model to yield perceived EII. However, the combination of verbal cues in an affirmative mode and vibrotactile cues in a counteractive mode enhanced significantly the multiuser usability of the VE for the task of the study, compared to individual verbal and vibrotactile cues. These observations indicate a suitable combination of both cues to potentially foster multiuser usability of collaborative VEs.
中文翻译:
口头和触觉提示在协作虚拟环境中的多用户可用性
合适的通信提示对于协作虚拟环境(VE)的多用户可用性至关重要。尽管口头提示在用户中很常见,但触觉提示不是非语言提示,以方便按惯例与对象进行交互。很少有研究工作检验了言语和触觉提示对协作式VE的多用户可用性的作用。因此,本文对影响VE的多用户可用性的语言和触觉提示及其组合进行了评估。VE通过动态优先级(DP)模型解决了对等用户发出的交互命令的冲突,该模型根据用户获得的交互的新近度将交互授予用户。正如现有工作所揭示的那样,DP模型产生了用户之间的交互感(EII),以促进多用户满意度。评估利用了多用户可用性指标,我们针对ISO / IEC 2050:2011和25022:2016标准的组件提出了这些指标。这些指标被认为是用户的集体结果,与衡量个人体验的现有指标不同。我们首先在VE中进行了两个基准评估。一项评估调查了语言提示如何影响EII和多用户可用性;另一项评估研究了触觉提示如何影响DP模型的效果。基于这些评估,我们随后进行了一项研究,以评估言语提示和触觉提示结合对VE的多用户可用性的影响。我们观察到,这两个提示对DP模型都没有影响,无法产生感知到的EII。然而,与单独的言语和触觉提示相比,肯定模式的言语提示和反作用模式的触觉提示的组合显着提高了VE在研究任务中的多用户可用性。这些观察表明,这两种提示的适当组合可以潜在地促进协作VE的多用户可用性。
更新日期:2018-11-28
中文翻译:
口头和触觉提示在协作虚拟环境中的多用户可用性
合适的通信提示对于协作虚拟环境(VE)的多用户可用性至关重要。尽管口头提示在用户中很常见,但触觉提示不是非语言提示,以方便按惯例与对象进行交互。很少有研究工作检验了言语和触觉提示对协作式VE的多用户可用性的作用。因此,本文对影响VE的多用户可用性的语言和触觉提示及其组合进行了评估。VE通过动态优先级(DP)模型解决了对等用户发出的交互命令的冲突,该模型根据用户获得的交互的新近度将交互授予用户。正如现有工作所揭示的那样,DP模型产生了用户之间的交互感(EII),以促进多用户满意度。评估利用了多用户可用性指标,我们针对ISO / IEC 2050:2011和25022:2016标准的组件提出了这些指标。这些指标被认为是用户的集体结果,与衡量个人体验的现有指标不同。我们首先在VE中进行了两个基准评估。一项评估调查了语言提示如何影响EII和多用户可用性;另一项评估研究了触觉提示如何影响DP模型的效果。基于这些评估,我们随后进行了一项研究,以评估言语提示和触觉提示结合对VE的多用户可用性的影响。我们观察到,这两个提示对DP模型都没有影响,无法产生感知到的EII。然而,与单独的言语和触觉提示相比,肯定模式的言语提示和反作用模式的触觉提示的组合显着提高了VE在研究任务中的多用户可用性。这些观察表明,这两种提示的适当组合可以潜在地促进协作VE的多用户可用性。