This paper proposes the usage of for exploratory search with as a facet. Starting from specific design goals for depiction of ambivalence in sentiment, two visualization widgets were implemented: and . Those widgets were evaluated against a text baseline in a small-scale usability study with exploratory tasks using Wikipedia as dataset. The study results indicate that users spend more time browsing with scatter plots in a positive way. A post-hoc analysis of individual differences in behavior revealed that when considering two types of users, and , engagement with scatter plots is positive and significantly greater . We discuss the implications of these findings for sentiment-based exploratory search and personalised user interfaces.
@cite_18 is a search engine where information seekers can answer questions with an explicit sentiment component such as and obtain a visualisation of search results. The purpose of the visual depiction is artistic, and results can be filtered through facets of meta-data such as gender, age and mood. With regard to , @cite_6 depicts facets such as time, geo-location and topics. In @cite_10 , treemaps are used to depict a hierarchical facet. It was found that the usage of visualisation had positive impact on perceived task difficulty, repository understanding and enjoyment. Our work extends @cite_6 , as we present widgets for a specific facet that could be used among other widgets.
@cite_18 @cite_10 @cite_6
2024351142 2158943277
Hierarchical representations are common in digital repositories, yet are not always fully leveraged in their online search interfaces. This work describes ResultMaps, which use hierarchical treemap representations with query string-driven digital library search engines. We describe two lab experiments, which find that ResultsMap users yield significantly better results over a control condition on some subjective measures, and we find evidence that ResultMaps have ancillary benefits via increased understanding of some aspects of repository content. The ResultMap system and experiments contribute an understanding of the benefits-direct and indirect-of the ResultMap approach to repository search visualization. In common Web-based search interfaces, it can be difficult to formulate queries that simultaneously combine temporal, spatial, and topical data filters. We investigate how coordinated visualizations can enhance search and exploration of information on the World Wide Web by easing the formulation of these types of queries. Drawing from visual information seeking and exploratory search, we introduce VisGets - interactive query visualizations of Web-based information that operate with online information within a Web browser. VisGets provide the information seeker with visual overviews of Web resources and offer a way to visually filter the data. Our goal is to facilitate the construction of dynamic search queries that combine filters from more than one data dimension. We present a prototype information exploration system featuring three linked VisGets (temporal, spatial, and topical), and used it to visually explore news items from online RSS feeds.