Interactive visual facets to support fluid exploratory search

作     者：He, Chen Micallef, Luana Serim, Baris Tung Vuong Ruotsalo, Tuukka Jacucci, Giulio 

作者机构：Univ Helsinki Dept Comp Sci Helsinki Finland Univ Copenhagen Dept Comp Sci Copenhagen Denmark 

出 版 物：《JOURNAL OF VISUALIZATION》 (显形杂志)

年 卷 期：2023年第26卷第1期

页      面：211-230页

核心收录：

学科分类：1002[医学-临床医学] 07[理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Academy of Finland through the Strategic Research Council project Data Literacy for Responsible Decision-Making Academy of Finland (AKA) Funding Source: Academy of Finland (AKA) 

主　　题：Exploratory search Information facets Fluid interaction Visual data exploration 

摘      要：Exploratory search starts with ill-defined goals and involves browsing, learning, and formulating new targets for search. To fluidly support such dynamic search behaviours, we focus on devising interactive visual facets (IVF), visualising information facets to support user comprehension and control of the information space. We reviewed existing faceted search interfaces and derived two design requirements (DR) that have not been fully addressed to support fluid interactions in exploratory search. We then exemplified the requirements through devising an IVF tool, which coordinates a linear and a categorical facet representing the distribution and summarisation of items, respectively, and providing context for faceted exploration (DR1). To support rapid transitions between search criteria (DR2), the tool introduces a novel design concept of using facets to select items without filtering the item space. Particularly, we propose a filter-swipe technique that enables users to drag a categorical facet value sequentially over linear facet bars to view the items in the intersection of the two facets along with the categorical facet dynamically summarising the items in the intersection. Three applications with various datasets demonstrate how the features support information discovery with ease. A comparison with a baseline system provided evidence that the task performance of the IVF tool was comparable to the typical query search interface. Another study of 11 participants with realistic email search tasks shows that dynamic suggestions through the timeline navigation can help discover useful suggestions for search;the novel design concept was favoured over using facet values as filters. Based on these practices, we derive IVF design implications for fluid, exploratory searches.