高级检索

交互模态与任务类型对用户检索绩效的影响

The Influence of Interaction Modality and Task Type on User Retrieval Performance

  • 摘要: 人机交互系统如何适应用户的检索任务变化, 提供更优的交互模态是有待研究的课题。实验邀请30名被试, 采用3(交互模态:触控、语音、眼控)×2(任务类型:目标模糊型任务、目标明确型任务)的双因素被试间设计。通过眼动实验测试任务完成时间、兴趣区注视次数等客观数据, 实验结束后通过问卷测试任务负荷、满意度等主观数据。实验结果表明, 任务类型与交互模态均影响用户检索, 且存在交互效应。用户检索目标越明确, 任务完成时间越快, 注视区域越集中, 任务负荷越低, 满意度越高。用户使用眼控、语音模态检索比使用触控模态检索慢。研究为信息检索系统中交互模态的选择与使用提供设计参考.

     

    Abstract: How HCI systems can adapt to the changing retrieval tasks of users. It is a topic to be studied to provide better interaction modalities. Thirty subjects were invited for the experiment. A two-factor between-subjects design of 3 (interaction modality: touch, voice, and eye-control) × 2 (task type: goal-ambiguous task, goal-oriented task) was used for the experiment. Objective data such as task completion time and number of gaze in the area of interest were tested by eye-movement experiment, and subjective data such as task load and satisfaction were tested by questionnaire after the experiment. The experimental results showed that both task type and interaction modality affected user retrieval, and there was an interaction effect. The clearer the user's retrieval goal, the faster the task completion time, the more focused the attention area, the lower the task load, and the higher the satisfaction level. Users retrieved more slowly using eye-control and voice modality than using touch modality. The study provides design reference for the selection and use of interaction modalities in information retrieval systems。

     

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