@article{BludauBrueggemannBuschetal., author = {Bludau, Mark-Jan and Br{\"u}ggemann, Viktoria and Busch, A. and D{\"o}rk, Marian}, title = {Reading Traces: Scalable Exploration in Elastic Visualizations of Cultural Heritage Data}, series = {Computer Graphics Forum}, volume = {39}, journal = {Computer Graphics Forum}, number = {3}, publisher = {Wiley-Blackwell}, address = {Oxford}, doi = {10.1111/cgf.13964}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:525-24992}, pages = {77 -- 87}, abstract = {Through a design study, we develop an approach to data exploration that utilizes elastic visualizations designed to support varying degrees of detail and abstraction. Examining the notions of scalability and elasticity in interactive visualizations, we introduce a visualization of personal reading traces such as marginalia or markings inside the reference library of German realist author Theodor Fontane. To explore such a rich and extensive collection, meaningful visual forms of abstraction and detail are as important as the transitions between those states. Following a growing research interest in the role of fluid interactivity and animations between views, we are particularly interested in the potential of carefully designed transitions and consistent representations across scales. The resulting prototype addresses humanistic research questions about the interplay of distant and close reading with visualization research on continuous navigation along several granularity levels, using scrolling as one of the main interaction mechanisms. In addition to presenting the design process and resulting prototype, we present findings from a qualitative evaluation of the tool, which suggest that bridging between distant and close views can enhance exploration, but that transitions between views need to be crafted very carefully to facilitate comprehension.}, subject = {Visualisierung}, language = {en} } @article{DoerkPietschCredico, author = {D{\"o}rk, Marian and Pietsch, Christopher and Credico, Gabriel}, title = {One view is not enough High-level visualizations of a large cultural collection}, series = {Information Design Journal}, volume = {23}, journal = {Information Design Journal}, number = {1}, publisher = {John Benjamins Publishing}, address = {Amsterdam}, issn = {1569-979X}, doi = {10.1075/idj.23.1.06dor}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:525-26609}, pages = {39 -- 47}, abstract = {As cultural institutions are digitizing their artifacts and interlinking their collections, new opportunities emerge to engage with cultural heritage. However, it is the often comprehensive and complex nature of collections that can make it difficult to grasp their distribution and extent across a variety of dimensions. After a brief introduction to the research area of collection visualizations, this paper presents a design study visualizing an aggregated collection from diverse cultural institutions in Germany. We detail our iterative design process leading to prototypical implementations of four stylistically and functionally coordinated visualizations, each one focusing on different facets of the collection.}, subject = {Visualisierung}, language = {en} } @article{BludauDoerkBruckneretal., author = {Bludau, Mark-Jan and D{\"o}rk, Marian and Bruckner, Stefan and Tominski, Christian}, title = {Fluidly Revealing Information}, series = {Computer Graphics Forum}, volume = {44}, journal = {Computer Graphics Forum}, number = {3}, publisher = {Wiley-Blackwell}, address = {Oxford}, issn = {0167-7055}, doi = {10.1111/cgf.70152}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:525-36719}, pages = {26}, abstract = {Revealing relevant information on demand is an essential requirement for visual data exploration. In this state-of-the-art report, we review and classify techniques that are inspired by the physical metaphor of un/folding to reveal relevant information or, conversely, to reduce irrelevant information in data visualizations. Similar to focus+context approaches, un/foldable visualizations transform the visual data representation, often between different granularities, in an integrated manner while preserving the overall context. This typically involves switching between different visibility states of data elements or adjusting the graphical abstraction linked by gradual display transitions. We analyze a literature corpus of 101 visualization techniques specifically with respect to their use of the un/folding metaphor. In particular, we consider the type of data, the focus scope and the effect scope, the number of un/folding states, the transformation type, and the controllability and interaction directness of un/folding. The collection of un/foldables is available as an online catalog that includes classic focus+context, semantic zooming, and multi-scale visualizations as well as contemporary un/foldable visualizations. From our literature analysis, we further extract families of un/folding techniques, summarize empirical findings to date, and identify promising research directions for un/foldable data visualization.}, subject = {Falten}, language = {en} } @article{DoerkMuellerStangeetal., author = {D{\"o}rk, Marian and M{\"u}ller, Boris and Stange, Jan-Erik and Herseni, Johannes and Dittrich, Katja}, title = {Co-Designing Visualizations for Information Seeking and Knowledge Management}, series = {Open Information Science}, volume = {4}, journal = {Open Information Science}, number = {1}, publisher = {De Gruyter Saur}, address = {Berlin}, issn = {2451-1781}, doi = {10.1515/opis-2020-0102}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:525-26188}, pages = {217 -- 235}, abstract = {Creativity is a crucial factor in finding novel and useful visualization and interaction techniques, but its emergence is contingent on the right conditions. The focus of visualization research has traditionally been on techniques, and to a lesser degree on the process of creating them with domain experts and end users. This paper focuses on the collaborative design of visualizations for information seeking and knowledge management. The difficult, yet common challenge in any visualization project is to find meaningful visual representations and useful interaction techniques to carry out complex analysis tasks. The unique difficulty for preparing co-design activities for visualization lies in the gap between the abstract nature of data and the concrete form of visual representations. To bridge this gap, our co-design framework for visualization places particular emphasis on actors, activities, and artifacts as categories that expand the focus of visualization design beyond the traditional triad of users, tasks, and data. Drawing from general co-design principles, the framework is developed and validated during the course of two case studies in the context of information management systems and library collection databases. Based on observed patterns during the case studies, practical tactics provide advice on carrying out co-design in information visualization.}, subject = {Methodologie}, language = {en} }