让语音助手根据对话场景自动切换表达风格，更自然好用。
Toward Metaphor-Fluid Conversation Design for Voice User Interfaces
- 根据任务类型动态调整语音助手的表达方式，如正式或亲昵。
- 实验证明新设计让用户更愿意使用、更觉得有趣和喜欢。
- 适合希望提升人机交互体验的语音产品设计者参考。
隐喻在塑造语音用户界面（VUI）体验中起关键作用，但现有设计多采用静态、以人类为中心的隐喻，难以适应不同情境和用户需求。本文提出‘隐喻流’设计（Metaphor-Fluid Design），根据对话上下文动态调整隐喻表达。研究1（N=130）将隐喻映射到四类使用场景——指令、信息查询、社交互动与错误恢复，沿正式性与层级维度分析，发现任务特定的隐喻偏好。研究2（N=91）对比‘隐喻流’VUI与默认（Default VUI，即当前主流商业系统普遍采用的统一助理形象）设计，结果表明‘隐喻流’显著提升用户的采纳意愿、愉悦感与喜爱度，更好地契合不同情境下的用户预期。但个体对隐喻的偏好差异提示需进一步个性化。该研究挑战了‘一刀切’的设计范式，展示了‘隐喻流’在构建更自适应、更具吸引力的人机交互中的潜力。
原文摘要 · Abstract (English)
Metaphors play a critical role in shaping user experiences with Voice User Interfaces (VUIs), yet existing designs often rely on static, human-centric metaphors that fail to adapt to diverse contexts and user needs. This paper introduces Metaphor-Fluid Design, a novel approach that dynamically adjusts metaphorical representations based on conversational use-contexts. We compare this approach to a Default VUI, which characterizes the present implementation of commercial VUIs commonly designed around the persona of an assistant, offering a uniform interaction style across contexts. In Study 1 (N=130), metaphors were mapped to four key use-contexts-commands, information seeking, sociality, and error recovery-along the dimensions of formality and hierarchy, revealing distinct preferences for task-specific metaphorical designs. Study 2 (N=91) evaluates a Metaphor-Fluid VUI against a Default VUI, showing that the Metaphor-Fluid VUI enhances perceived intention to adopt, enjoyment, and likability by aligning better with user expectations for different contexts. However, individual differences in metaphor preferences highlight the need for personalization. These findings challenge the one-size-fits-all paradigm of VUI design and demonstrate the potential of Metaphor-Fluid Design to create more adaptive and engaging human-AI interactions.
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