The influence of snippet length on user behavior in mobile web search
The influence of snippet length on user behavior in mobile web search
复制标题
移动网络搜索中片段长度对用户行为的影响
DOI：
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复制
发表时间：
2019
影响因子：
2.6
通讯作者：
Jacqueline Sachse
中科院分区：
文献类型：
--
作者：
Jacqueline Sachse
目的
网络搜索越来越多地进入移动环境。然而，移动设备的屏幕尺寸有限，搜索引擎结果页面面临着在提供信息片段和优化空间利用之间的权衡。一个明显影响这种取舍的因素是代码段长度。本文的目的是找出在移动网络搜索中使用的代码片段大小。
设计/方法/方法
为此，进行了一项眼球跟踪实验，向参与者展示了在移动设备上使用一行、三行或五行的代码片段来分析17个因变量的搜索界面。总共有31名参与者参与了这项研究。每个参与者都解决了信息和导航任务。
发现
结果表明，页面折叠对搜索结果的滚动行为和注意力分配有很大的影响。无论查询类型如何，短片段似乎提供的有关结果的信息太少，因此搜索性能和主观测量都会受到负面影响。对于导航查询，五行的长代码段比中等代码段的性能更好，但对于信息查询，性能更差。
原创性/价值
尽管移动搜索的空间有限，但这项研究表明，较长的代码片段可以改善可用性和用户体验。它进一步强调，在注意力分配方面，页面折叠在移动设备中比在桌面搜索中扮演着更重要的角色。
Purpose
Web search is more and more moving into mobile contexts. However, screen size of mobile devices is limited and search engine result pages face a trade-off between offering informative snippets and optimal use of space. One factor clearly influencing this trade-off is snippet length. The purpose of this paper is to find out what snippet size to use in mobile web search.
Design/methodology/approach
For this purpose, an eye-tracking experiment was conducted showing participants search interfaces with snippets of one, three or five lines on a mobile device to analyze 17 dependent variables. In total, 31 participants took part in the study. Each of the participants solved informational and navigational tasks.
Findings
Results indicate a strong influence of page fold on scrolling behavior and attention distribution across search results. Regardless of query type, short snippets seem to provide too little information about the result, so that search performance and subjective measures are negatively affected. Long snippets of five lines lead to better performance than medium snippets for navigational queries, but to worse performance for informational queries.
Originality/value
Although space in mobile search is limited, this study shows that longer snippets improve usability and user experience. It further emphasizes that page fold plays a stronger role in mobile than in desktop search for attention distribution.