Immersive Search: Using Virtual Reality to Examine How a Third Dimension Impacts the Searching Process

Immersive Search: Using Virtual Reality to Examine How a Third Dimension Impacts the Searching Process
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沉浸式搜索:使用虚拟现实检查第三维度如何影响搜索过程

DOI:
10.1145/3397271.3401303
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发表时间:
2020
期刊:
Proceedings of the 43rd International ACM SIGIR Conference on Research and Development in Information Retrieval
影响因子:
--
通讯作者:
Capra, Rob
Capra, Rob
中科院分区:
--
文献类型:
--
作者:
Ward, Austin R.;Capra, Rob

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在本文中,我们提出了一个探索性的研究,调查用户的行为和偏好的三种不同风格的搜索结果呈现在虚拟现实(VR)头戴式显示器(HMD)的结果。先前在2D显示器方面的工作已经提出了以利用用户的空间认知能力的方式呈现信息的可能益处。我们设计了一个VR系统,它以三种不同的空间排列方式显示搜索结果:8个结果的列表、4x5网格和2x10弧。这些空间显示条件被设计为在每页显示的结果数量(8 vs 20)和扫描结果所需的头部移动量(列表<网格<弧)方面有所不同。36名参与者在每个显示条件下完成了6次搜索试验(总共18次)。对于每个试验,参与者都会看到搜索结果的显示,并被要求找到给定的目标结果或指示目标不存在。我们使用交互数据、问卷调查和访谈收集了关于用户对这三种显示条件的行为和感知的数据。我们探讨了显示条件和目标存在对行为测量的影响(例如,完成时间、头部移动、寻呼事件、准确性)和用户的感知(例如,工作量、易用性、舒适性、信心、难度和丢失性)。我们的研究结果表明,有显示条件之间的准确性没有差异,但用户完成任务更快地使用弧。然而,用户也表达了对弧形的较低偏好,而更喜欢列表和网格显示。我们的研究结果扩展了先前的视觉搜索领域的三维结果显示交互式信息检索VR头显环境。
In this paper, we present results from an exploratory study to investigate users' behaviors and preferences for three different styles of search results presentation in a virtual reality (VR) head-mounted display (HMD). Prior work in 2D displays has suggested possible benefits of presenting information in ways that exploit users' spatial cognition abilities. We designed a VR system that displays search results in three different spatial arrangements: a list of 8 results, a 4x5 grid, and a 2x10 arc. These spatial display conditions were designed to differ in terms of the number of results displayed per page (8 vs 20) and the amount of head movement required to scan the results (list < grid < arc). Thirty-six participants completed 6 search trials in each display condition (18 total). For each trial, the participant was presented with a display of search results and asked to find a given target result or to indicate that the target was not present. We collected data about users' behaviors with and perceptions about the three display conditions using interaction data, questionnaires, and interviews. We explore the effects of display condition and target presence on behavioral measures (e.g., completion time, head movement, paging events, accuracy) and on users' perceptions (e.g., workload, ease of use, comfort, confidence, difficulty, and lostness). Our results suggest that there was no difference in accuracy among the display conditions, but that users completed tasks more quickly using the arc. However, users also expressed lower preferences for the arc, instead preferring the list and grid displays. Our findings extend prior research on visual search into to the area of 3-dimensional result displays for interactive information retrieval in VR HMD environments.
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