[Purpose/significance]Extract users’ complete trail of search system using and switching on mobile devices, and reveal the differences in the process and results of different search trails on mobile search systems. [Method/process] This paper adopted experimental research methods, combined with questionnaires and interviews, and designed complex search tasks under two different topics. From the perspective of the use of mobile search systems, search systems were treated as nodes to form users’ search trails on mobile search systems, and the cluster analysis method was used to discover and summarize specific patterns of those trails. Each specific pattern of those trails was evaluated and analyzed from three aspects: search process, search results, and exploratory search performance. [Result/conclusion] Mobile users have preferences for the search system under different task topics while specific patterns of user search trails on mobile search systems exist. There are differences in users’ evaluation on the search trails on mobile search systems under different patterns.
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