A study of drag‐and‐drop query refinement and query history visualization for mobile exploratory search

Mohammad Hasan Payandeh, Orland Hoeber, Miriam Boon, Dale Storie and Veronica Ramshaw

Journal of the Association for Information Science & Technology, 2025, vol. 76, issue 6, 848-866

Abstract: When undertaking complex search scenarios, the underlying information need cannot be satisfied by finding a single optimal resource; instead, searchers need to engage in exploratory search processes to find multiple resources by iteratively revising and reformulation their queries. This process of query refinement is particularly challenging when using a mobile device, where typing is difficult. Furthermore, in mobile search contexts interruptions can lead to searchers losing track of what they were doing. To address these challenges, we designed a public digital library search interface for mobile devices that includes two novel features: drag‐and‐drop query refinement and query history visualization. To assess the value of this interface compared to a typical baseline, we conducted a controlled laboratory study with 32 participants that included pursuing complex search scenarios, being interrupted in the midst of the search, and resuming the search after the interruption. While participants took more time, they generated longer queries and reported positive subjective opinions about the usability of the exploratory search and task resumption features, along with a greater increase in certainty. These findings show the value of leveraging new touch‐based interaction mechanisms within mobile search contexts, and the benefits that visualization can bring to supporting search task resumption.

Date: 2025
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