Traditionally, the efficiency and effectiveness of search systems have both been of great interest to the information retrieval community. However, an in-depth analysis of the interaction between the response latency and users' subjective search experience in the mobile setting has been missing so far. To address this gap, we conduct a controlled study that aims to reveal how response latency affects mobile web search. Our preliminary results indicate that mobile web search users are four times more tolerant to response latency reported for desktop web search users. However, when exceeding a certain threshold of 7-10 sec, the delays have a sizeable impact and users report feeling significantly more tensed, tired, terrible, frustrated and sluggish, all which contribute to a worse subjective user experience.
翻译：传统上,搜索系统的效率和效力对信息检索界都非常感兴趣,然而,迄今尚未深入分析反应延迟与用户在移动环境中的主观搜索经验之间的相互作用。为弥补这一差距,我们开展了一项受控研究,目的是揭示反应延迟如何影响移动网络搜索。我们的初步结果显示,移动网络搜索用户对台式网络搜索用户报告的响应延迟有四倍的容忍度。然而,如果超过7-10秒的某一阈值,延迟影响很大,用户报告感到压力大得多、疲劳、可怕、沮丧和疲软,所有这些都导致更糟糕的主观用户经历。
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