@article{Meier, author = {Meier, Sebastian}, title = {The Marker Cluster}, series = {International Journal of Agricultural and Environmental Information Systems}, volume = {7}, journal = {International Journal of Agricultural and Environmental Information Systems}, number = {1}, publisher = {IGI Global}, address = {Hershey}, issn = {1947-3206}, doi = {10.4018/IJAEIS.2016010102}, pages = {28 -- 43}, abstract = {The growing amount of gathered, stored and available data is creating a need for useful mass-data visualizations in many domains. The mapping of large spatial data sets is not only of interest for experts anymore, but, with regard to the latest advances in web cartography, also moves into the domain of public cartographic applications. One interactive web-based cartographic interface design pattern that helps with visualizing and interacting with large, high density data sets is the marker cluster; a functionality already in use in many web-based products and solutions. In this article, the author will present their ongoing research on the problem of "too many markers." They will present an empirical evaluation and comparison of marker cluster techniques and similar approaches, including heatmaps and tiled heatmaps. They conclude with a first concept for overcoming some of the obstacles that they were able to identify in their study and thereby introduce a new direction for further research.}, subject = {Big Data}, language = {en} } @incollection{Meier, author = {Meier, Sebastian}, title = {Visualizing Large Spatial Time Series Data on Mobile Devices}, series = {Cartography : Maps Connecting the World}, booktitle = {Cartography : Maps Connecting the World}, publisher = {Springer}, address = {Cham}, isbn = {978-3-319-17738-0}, issn = {1863-2351}, doi = {10.1007/978-3-319-17738-0_12}, publisher = {Fachhochschule Potsdam}, pages = {161 -- 173}, abstract = {This paper introduces an approach for visualizing large spatial time series data sets on mobile devices. The HeatTile system (Meier et al. 2014) is used and extended with a progressive loading approach, the stream approach. By combining those two approaches, this study aimed to overcome the performance and bandwidth limitations inherent to mobile devices. This chapter focuses on the technological advantages of the presented approach in a performance comparison with other common approaches. Furthermore, an animated time series visualization is introduced, as well as an interface designed specifically for the presented method in order to emphasize the advantages of the approach. To further highlight the possible applications of the method, two real-world use cases are presented.}, subject = {Visualisierung}, language = {en} } @incollection{NagelPschetzStefaneretal., author = {Nagel, Tina and Pschetz, Larissa and Stefaner, Moritz and M{\"u}ller, Boris}, title = {m{\ae}ve - Eine interaktive Tabletop-Installation}, series = {Kultur und Informatik : interaktive Systeme}, booktitle = {Kultur und Informatik : interaktive Systeme}, publisher = {H{\"u}lsbusch}, address = {Boizenburg}, isbn = {978-3-940317-72-8}, pages = {287 -- 298}, subject = {Mensch-Maschine-Kommunikation}, language = {de} } @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{BeechamRooneyMeieretal., author = {Beecham, R. and Rooney, C. and Meier, S. and Dykes, J. and Slingsby, A and Turkay, C. and Wood, J. and Wood, B. L. and Wong, W.}, title = {Faceted Views of Varying Emphasis (FaVVEs)}, series = {Computer Graphics Forum}, volume = {35}, journal = {Computer Graphics Forum}, number = {3}, publisher = {Wiley-Blackwell}, address = {Oxford}, issn = {1467-8659}, doi = {10.1111/cgf.12900}, pages = {241 -- 249}, abstract = {Many datasets have multiple perspectives - for example space, time and description - and often analysts are required to study these multiple perspectives concurrently. This concurrent analysis becomes difficult when data are grouped and split into small multiples for comparison. A design challenge is thus to provide representations that enable multiple perspectives, split into small multiples, to be viewed simultaneously in ways that neither clutter nor overload. We present a design framework that allows us to do this. We claim that multi-perspective comparison across small multiples may be possible by superimposing perspectives on one another rather than juxtaposing those perspectives side-by-side. This approach defies conventional wisdom and likely results in visual and informational clutter. For this reason we propose designs at three levels of abstraction for each perspective. By flexibly varying the abstraction level, certain perspectives can be brought into, or out of, focus. We evaluate our framework through laboratory-style user tests. We find that superimposing, rather than juxtaposing, perspective views has little effect on performance of a low-level comparison task. We reflect on the user study and its design to further identify analysis situations for which our framework may be desirable. Although the user study findings were insufficiently discriminating, we believe our framework opens up a new design space for multi-perspective visual analysis.}, subject = {Visualisierung}, language = {en} } @inproceedings{OttenHildebrandNageletal., author = {Otten, Heike and Hildebrand, Lennart and Nagel, Till and D{\"o}rk, Marian and M{\"u}ller, Boris}, title = {Shifted Maps}, series = {2018 IEEE VIS Arts Program}, booktitle = {2018 IEEE VIS Arts Program}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, address = {Berlin}, organization = {Institute of Electrical and Electronics Engineers (IEEE)}, isbn = {978-1-7281-2805-4}, doi = {10.1109/VISAP45312.2018.9046054}, pages = {1 -- 10}, abstract = {We present a hybrid visualization technique that integrates maps into network visualizations to reveal and analyze diverse topologies in geospatial movement data. With the rise of GPS tracking in various contexts such as smartphones and vehicles there has been a drastic increase in geospatial data being collect for personal reflection and organizational optimization. The generated movement datasets contain both geographical and temporal information, from which rich relational information can be derived. Common map visualizations perform especially well in revealing basic spatial patterns, but pay less attention to more nuanced relational properties. In contrast, network visualizations represent the specific topological structure of a dataset through the visual connections of nodes and their positioning. So far there has been relatively little research on combining these two approaches. Shifted Maps aims to bring maps and network visualizations together as equals. The visualization of places shown as circular map extracts and movements between places shown as edges, can be analyzed in different network arrangements, which reveal spatial and temporal topologies of movement data. We implemented a web-based prototype and report on challenges and opportunities about a novel network layout of places gathered during a qualitative evaluation.}, subject = {Karte}, language = {en} } @inproceedings{MeierTostHeidmann2019, author = {Meier, Sebastian and Tost, Jordi and Heidmann, Frank}, title = {On the relevance of cartography : an interaction design perspective}, series = {Proceedings of the International Cartographic Association}, booktitle = {Proceedings of the International Cartographic Association}, number = {2}, address = {Bern}, organization = {International Cartographic Association (ICA)}, doi = {10.5194/ica-proc-2-84-2019}, pages = {6}, year = {2019}, abstract = {We see more cartographic products in our digital world than ever before. But what role does cartography play in the modern production of cartographic products? In this position paper, we will argue that the democratization and diffusion of cartographic production has also led to the presumed "fading relevance" of cartography. As an argument against this notion, we highlight starting points for the field of cartography to improve modern cartographic production through its inherent cartographic knowledge.}, subject = {Kartografie}, language = {en} } @article{BludauDoerkHeidmann, author = {Bludau, Mark-Jan and D{\"o}rk, Marian and Heidmann, Frank}, title = {Relational perspectives as situated visualizations of art collections}, series = {Digital Scholarship in the Humanities}, volume = {36}, journal = {Digital Scholarship in the Humanities}, number = {Supplement 2}, publisher = {Oxford University Press}, address = {Oxford}, issn = {1477-4615}, doi = {10.1093/llc/fqab003}, pages = {ii17 -- ii29}, abstract = {With relational perspectives, we examine the potential of traversing cultural collections along the richness of individual facets and relations through the process of developing an exploration-centered visualization. Cultural collections can contain thousands of artifacts, of which each typically possesses a diverse set of properties and individual facets constituting a unique relationship to the rest of the collection. Therefore, to create an appropriate representation of the complex data of each underlying artifact, oftentimes, it is not only interesting to get an overview of the entire collection from one perspective, but to explore the specific context of an artifact and the various relations it may have to other items. To investigate the potential of relational perspectives, we selected an art collection as a particularly promising case study. By following and reporting from a collaborative and iterative design process with an art museum, we developed a web interface that contrasts a collection overview with three situated visualizations each exposing a different kind of relational perspective on the art collection from an artifact.}, subject = {Kulturelle Einrichtung}, language = {en} } @inproceedings{Pschetz, author = {Pschetz, Larissa}, title = {{hi}stories}, series = {CHI EA '08 : CHI '08 Extended Abstracts on Human Factors in Computing Systems}, booktitle = {CHI EA '08 : CHI '08 Extended Abstracts on Human Factors in Computing Systems}, publisher = {Association for Computing Machinery}, address = {New York}, isbn = {978-1-60558-012-8}, doi = {10.1145/1358628.1358915}, pages = {3693 -- 3698}, abstract = {With more and more digital information being produced by individuals every day, we will soon be able to use it to understand the past. Based on this premise this paper presents {Hi}Stories, a system to support the creation and access of user generated contents as historical evidences. In {Hi}Stories users aggregate contents from Internet and are invited to contribute their own material. It combines a number of research themes: collaborative information structuring, combination of contents from online services, and visualization and browsing of structured information collections.}, subject = {Elektronische Bibliothek}, language = {en} } @inproceedings{NagelDuval, author = {Nagel, Till and Duval, Erik}, title = {Muse}, series = {Proceedings of the 2nd International Workshop on Research 2.0. : At the 5th European Conference on Technology Enhanced Learning: Sustaining TEL}, volume = {675}, booktitle = {Proceedings of the 2nd International Workshop on Research 2.0. : At the 5th European Conference on Technology Enhanced Learning: Sustaining TEL}, publisher = {RWTH}, address = {Aachen}, issn = {1613-0073}, pages = {48 -- 52}, abstract = {This paper introduces Muse, an interactive visualization of publications to explore the collaborations between institutions. For this, the data on co-authorship is utilized, as these signify an existing level of collaboration. The affiliations of authors are geo-located, resulting in relations not only among institutions, but also between regions and countries. We explain our ideas behind the visualization and the interactions, and briefly describe the data processing and the implementation of the working prototype. The prototype focuses on a visualization for large tabletop displays, enabling multiple users to explore their personal networks, as well as emerging patterns in shared networks within a collaborative public setting. For the prototype we used the publication data of the EC-TEL conference.}, subject = {Visualisierung}, language = {en} } @inproceedings{NagelHeidmannCondottaetal., author = {Nagel, Till and Heidmann, Frank and Condotta, Massimiliano and Duval, Erik}, title = {Venice unfolding}, series = {NordiCHI '10 : Proceedings of the 6th Nordic Conference on Human-Computer Interaction: Extending Boundaries}, booktitle = {NordiCHI '10 : Proceedings of the 6th Nordic Conference on Human-Computer Interaction: Extending Boundaries}, publisher = {Association for Computing Machinery}, address = {New York}, isbn = {978-1-60558-934-3}, doi = {10.1145/1868914.1869019}, pages = {743 -- 746}, abstract = {We introduce Venice Unfolding, a case study on tangible geo-visualization on an interactive tabletop to enable the exploration of architectural projects in Venice. Our tangible user interface consists of a large display showing projects on a map, and a polyhedral object to browse these data interactively by selecting and filtering various metadata facets. In this paper we describe a prototype employing new methods to communicate territorial data in visual and tangible ways. The object reduces the barrier between the physical world and virtual data, and eases the understanding of faceted geographical data, enabling urban planners and citizens alike to participate in the discovery and analysis of information referring to the physical world.}, subject = {Gegenst{\"a}ndliche Benutzeroberfl{\"a}che}, language = {en} } @inproceedings{NagelDuvalHeidmann, author = {Nagel, Till and Duval, Erik and Heidmann, Frank}, title = {Visualizing Geospatial Co-authorship Data on a Multitouch Tabletop}, series = {Smart Graphics : 11th International Symposium, SG 2011, Bremen, Germany, July 18-20, 2011. Proceedings}, booktitle = {Smart Graphics : 11th International Symposium, SG 2011, Bremen, Germany, July 18-20, 2011. Proceedings}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-642-22571-0}, issn = {1611-3349}, doi = {10.1007/978-3-642-22571-0_13}, pages = {134 -- 137}, abstract = {This paper presents Muse, a visualization of institutional co-authorship of publications. The objective is to create an interactive visualization, which enables users to visually analyze collaboration between institutions based on publications. The easy to use multitouch interaction, and the size of the interactive surface invite users to explore the visualization in semi-public spaces.}, subject = {Visualisierung}, language = {en} } @inproceedings{NagelDuvalVandeMoere, author = {Nagel, Till and Duval, Erik and Vande Moere, Andrew}, title = {Interactive Exploration of Geospatial Network Visualization}, series = {CHI EA '12 : CHI '12 Extended Abstracts on Human Factors in Computing Systems}, booktitle = {CHI EA '12 : CHI '12 Extended Abstracts on Human Factors in Computing Systems}, publisher = {Association for Computing Machinery}, address = {New York}, isbn = {978-1-4503-1016-1}, doi = {10.1145/2212776.2212830}, pages = {557 -- 572}, abstract = {This paper presents a tabletop visualization of relations between geo-positioned locations. We developed an interactive visualization, which enables users to visually explore a geospatial network of actors. The multitouch tabletop, and the large size of the interactive surface invite users to explore the visualization in semi-public spaces. For a case study on scientific collaborations between institutions, we applied and improved several existing techniques for a walk-up-and-use system aimed at scientists for a social setting at a conference. We describe our iterative design approach, our two implemented prototypes, and the lessons learnt from their creation. We conducted user evaluation studies at the two on-location demonstrations, which provide evidence of the prototype usability and usefulness, and its support for understanding the distribution and connectivity in a geospatial network.}, subject = {Visualisierung}, language = {en} } @inproceedings{KauerRidleyDoerketal., author = {Kauer, Tobias and Ridley, Arran and D{\"o}rk, Marian and Bach, Benjamin}, title = {The Public Life of Data}, series = {CHI Conference on Human Factors in Computing Systems (CHI '21)}, volume = {2021}, booktitle = {CHI Conference on Human Factors in Computing Systems (CHI '21)}, publisher = {Association for Computing Machinery}, address = {New York}, doi = {10.1145/3411764.3445720}, pages = {1 -- 12}, abstract = {This research investigates how people engage with data visualizations when commenting on the social platform Reddit. There has been considerable research on collaborative sensemaking with visualizations and the personal relation of people with data. Yet, little is known about how public audiences without specific expertise and shared incentives openly express their thoughts, feelings, and insights in response to data visualizations. Motivated by the extensive social exchange around visualizations in online communities, this research examines characteristics and motivations of people's reactions to posts featuring visualizations. Following a Grounded Theory approach, we study 475 reactions from the /r/dataisbeautiful community, identify ten distinguishable reaction types, and consider their contribution to the discourse. A follow-up survey with 168 Reddit users clarified their intentions to react. Our results help understand the role of personal perspectives on data and inform future interfaces that integrate audience reactions into visualizations to foster a public discourse about data.}, subject = {Visualisierung}, language = {en} } @incollection{NagelPschetzStefaneretal., author = {Nagel, Till and Pschetz, Larissa and Stefaner, Moritz and Halkia, Matina and M{\"u}ller, Boris}, title = {m{\ae}ve - An Interactive Tabletop Installation for Exploring Background Information in Exhibitions}, series = {Human-computer interaction : ambient, ubiquitous and intelligent interaction ; 13th international conference, HCI International 2009, San Diego, CA, USA, July 19 - 24, 2009 ; proceedings, part III}, booktitle = {Human-computer interaction : ambient, ubiquitous and intelligent interaction ; 13th international conference, HCI International 2009, San Diego, CA, USA, July 19 - 24, 2009 ; proceedings, part III}, publisher = {Springer}, address = {Berlin}, isbn = {978-3-642-02580-8}, doi = {10.1007/978-3-642-02580-8_53}, pages = {483 -- 491}, abstract = {This paper introduces the installation m{\ae}ve: a novel approach to present background information in exhibitions in a highly interactive, tangible and sociable manner. Visitors can collect paper cards representing the exhibits and put them on an interactive surface to display associated concepts and relations to other works. As a result, users can explore both the unifying themes of the exhibition as well as individual characteristics of exhibits. On basis of metadata schemata developed in the MACE (Metadata for Architectural Contents in Europe) project, the system has been put to use the Architecture Biennale to display the entries to the Everyville student competition.}, subject = {Benutzeroberfl{\"a}che}, language = {en} } @techreport{HeidmannThomMeier, author = {Heidmann, Frank and Thom, Andreas and Meier, Sebastian}, title = {Wachstumskern Potenzial : MSNI - Mobile Semantische Navigation und Information, Teilprojekt 3: Nutzerschnittstellen und Content-Visualisierung. Projekt-Schlussbericht ; Berichtslaufzeit: 02/12 bis 01/14}, publisher = {FHP, FB Design}, address = {Potsdam}, doi = {10.2314/GBV:834735105}, pages = {57}, subject = {Mobiles Internet}, language = {de} } @incollection{HeidmannMeierMatthies, author = {Heidmann, Frank and Meier, Anita and Matthies, Denys J.C.}, title = {A brief Survey on Understanding the Interaction between Human and Technology at the Task of Pedestrian Navigation}, series = {Proceedings of the International Summer School on Visual Computing 2015 : August 17-21, 2015 in Rostock, Germany}, booktitle = {Proceedings of the International Summer School on Visual Computing 2015 : August 17-21, 2015 in Rostock, Germany}, publisher = {Fraunhofer}, address = {Stuttgart}, isbn = {978-3-8396-0960-6}, pages = {135 -- 140}, subject = {Bilderzeugung}, language = {en} } @article{BrueggemannBludauDoerk, author = {Br{\"u}ggemann, Viktoria and Bludau, Mark-Jan and D{\"o}rk, Marian}, title = {The Fold}, series = {Digital humanities quarterly : DHQ}, volume = {14}, journal = {Digital humanities quarterly : DHQ}, number = {3}, address = {USA}, organization = {Association for Computers and the Humanities}, issn = {1938-4122}, pages = {1 -- 16}, abstract = {We propose the philosophical notion of the fold as an evocative vocabulary for the design and critique of interactive data visualizations. An expanding range of application areas, such as digital art history and literary studies, illustrates the potential of data visualization for research and education in the humanities. Coinciding with the increasing currency of data as evidence in the humanities, this research addresses a growing interest in data visualization for visual analysis and argumentation. For example, cultural collection visualizations promise a range of possibilities for visual and interactive representations of digital cultural heritage, used both for free exploration and focused research. Based on the concept of the fold, prominently advanced by Gilles Deleuze, this paper outlines a critical framework that draws attention towards the complexity of the underlying data. The fold offers a way to analyze and conceptualize visualizations through the lens of three integrated operations: explication, implication, and complication. It is an opportunity to think of interactive visualizations as portals into coherent, elastic, and ultimately infinite information spaces. Accordingly, it rejects the separation between interactivity and visual encoding and draws attention to the transitions between multiple states of a visualization. We identify design patterns of the fold in data visualizations, devise a framework for the critical interpretation of interactivity in data visualization, and demonstrate the implications for the digital humanities.}, subject = {Visualisierung}, language = {en} } @masterthesis{Jun, type = {Bachelor Thesis}, author = {Jun, Mi-Ran}, title = {Das Prinzip des Faltens : Als grundlegende Software-Methapher f{\"u}r Benutzeroberfl{\"a}chen}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:525-opus-1399}, school = {Fachhochschule Potsdam}, abstract = {Das Prinzip des Faltens soll als Metapher f{\"u}r grafische Benutzeroberfl{\"a}chen weiterentwickelt werden. Es soll untersucht werden, ob das Erlernen und das Verst{\"a}ndnis der Bedienung bestimmter Programmfunktionen im Wesentlichen durch Faltprinzipien erleichtert werden. Eine Vielzahl von Funktionen wird heute in einem einzigen Ger{\"a}t integriert. Die so entstehenden Hybriden stellen aus Sicht des Designs jedoch die Frage nach Form und Gestalt des Artefakts. Wegen der kleinen Gr{\"o}ße der mobilen Ger{\"a}te ist es folglich problematisch all diese unterschiedlichen Interfaces auf der Benutzeroberfl{\"a}che zu integrieren. Versucht man diese unterschiedlichen Interfaces zu vereinen, ist das Ergebnis ein un{\"u}bersichtliches, verwirrendes Interface mit eingeschr{\"a}nkter Bedienung. Zudem findet das Interface f{\"u}r die obsolete Desktop-Metapher immer noch Verwendung. Durch den bezug zu real existierenden Arbeitsumgebungen sind Desktop-Systeme zwar einfach zu bedienen und verst{\"a}ndlich, doch k{\"o}nnen sie nicht ausgebaut werden. Problematisch ist vor allem die kleine Gr{\"o}ße der Desktops, um die Desktop-Metapher konvenabel auszuf{\"u}hren. Demnach ist eine konvenable Bedienung aufgrund der veralteten Desktop-Metapher sowie des Interfaces hinsichtlich der Miniaturisierung der mobilen Ger{\"a}te nur eingeschr{\"a}nkt m{\"o}glich oder sogar undurchf{\"u}hrbar. Die Arbeit erhebt hiernach den Anspruch, {\"U}berlegungen anzustreben, die den Begriff ‚Interface' neu definieren sowie die daraus resultierende These „Das Paradigma ‚Falten' ist die Zukunft der ‚ePaper-Technologie' zu diskutieren.}, subject = {Computer}, language = {de} } @article{SchwanJackeKleymannetal., author = {Schwan, Hannah and Jacke, Janina and Kleymann, Rabea and Stange, Jan-Erik and D{\"o}rk, Marian}, title = {Narrelations}, series = {Digital humanities quarterly : DHQ}, volume = {13}, journal = {Digital humanities quarterly : DHQ}, number = {3}, publisher = {Association for Computers and the Humanities}, address = {USA}, issn = {1938-4122}, pages = {1 -- 27}, abstract = {We present findings from interdisciplinary research at the intersection between literary studies, information visualization, and interface design. Despite a growing interest in text visualization among literary scholars, so far, narrative visualizations are not designed to support the particular tasks involved in narratological analysis and often fail to reveal nuanced narratological features. One major outcome of our iterative research and design process is Narrelations, a novel visualization technique specifically suited for analyzing and interpreting narrative levels of a story and temporal aspects of its narrative representation. The visualization provides an overview of the nesting and distribution of narrative levels, integrates the representation of temporal phenomena, and facilitates the examination of correlations between these aspects. With this research we explore how collaboratively designed visual encodings and interaction techniques may allow for an insightful analysis at a high level coupled with a close inspection of text passages. We discuss prior work relevant to our research objectives and explain the specific characteristics of narrative levels and temporal aspects of narrative representation. After describing the research process and design principles, we apply the visualization on a test corpus of eight annotated German short stories and demonstrate its heuristic value for literary analyses and interpretations. In particular, we explore the intricate connections between the literary content of the novellas and their narrative form.}, subject = {Literaturwissenschaft}, language = {en} } @inproceedings{MenzelBludauLeitneretal., author = {Menzel, Sina and Bludau, Mark-Jan and Leitner, Elena and D{\"o}rk, Marian and Moreno-Schneider, Juli{\´a}n and Petras, Vivien and Rehm, Georg}, title = {Graph Technologies for the Analysis of Historical Social Networks Using Heterogeneous Data Sources}, series = {Graph Technologies in the Humanities}, booktitle = {Graph Technologies in the Humanities}, editor = {Andrews, Tara and Diehr, Franziska and Efer, Thomas and Kuczera, Andreas and van Zundert, Joris}, address = {Wien}, organization = {Universit{\"a}t Wien}, issn = {1613-0073}, pages = {124 -- 149}, abstract = {Over the last decades, cultural heritage institutions have provided extensive machine-readable data, such as bibliographic and archival metadata, full-text collections, and authority records containing multitudes of implicit and explicit statements about the social relations between various types of entities. In this paper, we discuss how approaches to the creation and operation of advanced research infrastructure for historical network analysis (HNA) based on heterogeneous data sources from cultural heritage institutions can be examined and evaluated. Based on our interdisciplinary research, we describe challenges and strategies with a special focus on the issue of data processing, sketch out the advantages of human-centered project design in the form of a preliminary co-design workshop, and present an iterative approach to data visualization.}, subject = {Kulturerbe}, language = {en} } @article{Meier, author = {Meier, Sebastian}, title = {Visualizations in Online News - and Their Effect on Perceived Credibility}, series = {KN - Journal of cartography and geographic information}, volume = {67}, journal = {KN - Journal of cartography and geographic information}, number = {2}, publisher = {Springer International Publishing}, address = {Cham}, issn = {2524-4957}, doi = {10.1007/BF03545380}, pages = {74 -- 83}, abstract = {Over the last few years, data visualization, especially the visualization of spatial data, has become of ever-increasing importance in modern online journalism. While there is a broad range of research projects that focus on developing new methods, techniques, and implementations, empirical analysis of the potential implications of this trend is still rare. In this paper, the potential influence of visualizations in online journalism is in the focus: perceived credibility. The need for such empirical research is emphasized by presenting a preliminary quantitative study that assesses the impact of maps and information visualization on the perceived credibility of online news articles.}, subject = {Glaubw{\"u}rdigkeit}, language = {en} } @inproceedings{BrueggemannBludauDoerk, author = {Br{\"u}ggemann, Viktoria and Bludau, Mark-Jan and D{\"o}rk, Marian}, title = {Die Falte}, series = {DHd 2020 Spielr{\"a}ume: Digital Humanities zwischen Modellierung und Interpretation}, booktitle = {DHd 2020 Spielr{\"a}ume: Digital Humanities zwischen Modellierung und Interpretation}, editor = {Sch{\"o}ch, Christof}, address = {Hamburg}, organization = {Verband Digital Humanities im deutschsprachigen Raum e.V.}, doi = {10.5281/zenodo.4621888}, pages = {1 -- 4}, subject = {Visualisierung}, language = {de} } @inproceedings{GoodwinMeierBartrametal., author = {Goodwin, Sarah and Meier, Sebastian and Bartram, Lyn and Godwin, Alex and Nagel, Till and D{\"o}rk, Marian}, title = {Unravelling the Human Perspective and Considerations for Urban Data Visualization}, series = {2021 IEEE 14th Pacific Visualization Symposium (PacificVis)}, booktitle = {2021 IEEE 14th Pacific Visualization Symposium (PacificVis)}, publisher = {IEEE}, address = {New York}, organization = {The Institute of Electrical and Electronics Engineers (IEEE)}, isbn = {978-1-6654-3931-2}, doi = {10.1109/PacificVis52677.2021.00024}, pages = {126 -- 130}, abstract = {Effective use of data is an essential asset to modern cities. Visualization as a tool for analysis, exploration, and communication has become a driving force in the task of unravelling our complex urban fabrics. This paper outlines the findings from a series of three workshops from 2018-2020 bringing together experts in urban data visualization with the aim of exploring multidisciplinary perspectives from the human-centric lens. Based on the rich and detailed workshop discussions identifying challenges and opportunities for urban data visualization research, we outline major human-centric themes and considerations fundamental for CityVis design and introduce a framework for an urban visualization design space.}, subject = {Individuelle Datenverarbeitung}, language = {en} } @techreport{GeuderLeidingerLupinetal., type = {Working Paper}, author = {Geuder, Philipp and Leidinger, Marie-Claire and Lupin, Martin von and D{\"o}rk, Marian and Schr{\"o}der, Tobias}, title = {Emosaic: Visualizing Affective Content of Text at Varying Granularity}, series = {arxiv.org}, journal = {arxiv.org}, publisher = {Cornell University}, doi = {10.48550/arXiv.2002.10096}, pages = {9}, abstract = {This paper presents Emosaic, a tool for visualizing the emotional tone of text documents, considering multiple dimensions of emotion and varying levels of semantic granularity. Emosaic is grounded in psychological research on the relationship between language, affect, and color perception. We capitalize on an established three-dimensional model of human emotion: valence (good, nice vs. bad, awful), arousal (calm, passive vs. exciting, active) and dominance (weak, controlled vs. strong, in control). Previously, multi-dimensional models of emotion have been used rarely in visualizations of textual data, due to the perceptual challenges involved. Furthermore, until recently most text visualizations remained at a high level, precluding closer engagement with the deep semantic content of the text. Informed by empirical studies, we introduce a color mapping that translates any point in three-dimensional affective space into a unique color. Emosaic uses affective dictionaries of words annotated with the three emotional parameters of the valence-arousal-dominance model to extract emotional meanings from texts and then assigns to them corresponding color parameters of the hue-saturation-brightness color space. This approach of mapping emotion to color is aimed at helping readers to more easily grasp the emotional tone of the text. Several features of Emosaic allow readers to interactively explore the affective content of the text in more detail; e.g., in aggregated form as histograms, in sequential form following the order of text, and in detail embedded into the text display itself. Interaction techniques have been included to allow for filtering and navigating of text and visualizations.}, subject = {Mensch-Maschine-Kommunikation}, language = {en} } @article{KauerAkbabaDoerketal., author = {Kauer, Tobias and Akbaba, Derya and D{\"o}rk, Marian and Bach, Benjamin}, title = {Discursive Patinas}, series = {IEEE transactions on visualization and computer graphics}, volume = {21}, journal = {IEEE transactions on visualization and computer graphics}, number = {1}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, address = {New York}, issn = {1077-2626}, doi = {10.1109/TVCG.2024.3456334}, pages = {1246 -- 1256}, abstract = {This paper presents discursive patinas, a technique to visualize discussions onto data visualizations, inspired by how people leave traces in the physical world. While data visualizations are widely discussed in online communities and social media, comments tend to be displayed separately from the visualization and we lack ways to relate these discussions back to the content of the visualization, e.g., to situate comments, explain visual patterns, or question assumptions. In our visualization annotation interface, users can designate areas within the visualization. Discursive patinas are made of overlaid visual marks (anchors), attached to textual comments with category labels, likes, and replies. By coloring and styling the anchors, a meta visualization emerges, showing what and where people comment and annotate the visualization. These patinas show regions of heavy discussions, recent commenting activity, and the distribution of questions, suggestions, or personal stories. We ran workshops with 90 students, domain experts, and visualization researchers to study how people use anchors to discuss visualizations and how patinas influence people's understanding of the discussion. Our results show that discursive patinas improve the ability to navigate discussions and guide people to comments that help understand, contextualize, or scrutinize the visualization. We discuss the potential of anchors and patinas to support discursive engagements, including critical readings of visualizations, design feedback, and feminist approaches to data visualization.}, subject = {Annotation}, language = {en} } @article{GarretonMoriniCelhayetal., author = {Garret{\´o}n, Manuela and Morini, Francesca and Celhay, Pablo and D{\"o}rk, Marian and Parra, Denis}, title = {Attitudinal effects of data visualizations and illustrations in data stories}, series = {IEEE Transactions on Visualization and Computer Graphics}, volume = {30}, journal = {IEEE Transactions on Visualization and Computer Graphics}, number = {7}, address = {New York}, organization = {Institute of Electrical and Electronics Engineers (IEEE)}, issn = {1077-2626}, doi = {10.1109/TVCG.2023.3248319}, pages = {4039 -- 4054}, abstract = {Journalism has become more data-driven and inherently visual in recent years. Photographs, illustrations, infographics, data visualizations, and general images help convey complex topics to a wide audience. The way that visual artifacts influence how readers form an opinion beyond the text is an important issue to research, but there are few works about this topic. In this context, we research the persuasive, emotional and memorable dimensions of data visualizations and illustrations in journalistic storytelling for long-form articles. We conducted a user study and compared the effects which data visualizations and illustrations have on changing attitude towards a presented topic. While visual representations are usually studied along one dimension, in this experimental study, we explore the effects on readers' attitudes along three: persuasion, emotion, and information retention. By comparing different versions of the same article, we observe how attitudes differ based on the visual stimuli present, and how they are perceived when combined. Results indicate that the narrative using only data visualization elicits a stronger emotional impact than illustration-only visual support, as well as a significant change in the initial attitude about the topic. Our findings contribute to a growing body of literature on how visual artifacts may be used to inform and influence public opinion and debate. We present ideas for future work to generalize the results beyond the domain studied, the water crisis.}, subject = {Journalismus}, language = {en} } @inproceedings{Krohn, author = {Krohn, Matthias}, title = {Design mit digitalen Medien : das Projekt "Human Touch"}, series = {Images of a conference : Designkonferenz Potsdam ; Konferenz am 23./24. JUni 1995}, booktitle = {Images of a conference : Designkonferenz Potsdam ; Konferenz am 23./24. JUni 1995}, publisher = {Westermann-Kommunikation}, address = {Ingelheim}, organization = {Fachhochschule Potsdam}, isbn = {3-928710-27-3}, pages = {204 -- 209}, subject = {Design}, language = {de} } @inproceedings{WindhagerAbdulRahmanBludauetal., author = {Windhager, Florian and Abdul-Rahman, Alfie and Bludau, Mark-Jan and Hengesbach, Nicole and Lamqaddam, Houda and Meirelles, Isabel and Speckmann, Bettina and Corell, Michael}, title = {Complexity as Design Material}, series = {2024 IEEE Evaluation and Beyond - Methodological Approaches for Visualization : BELIV 2024}, booktitle = {2024 IEEE Evaluation and Beyond - Methodological Approaches for Visualization : BELIV 2024}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, address = {New York}, isbn = {979-8-3315-2846-1}, doi = {10.1109/BELIV64461.2024.00013}, pages = {71 -- 80}, abstract = {Complexity is often seen as a inherent negative in information design, with the job of the designer being to reduce or eliminate complexity, and with principles like Tufte's "data-ink ratio" or "chartjunk" to operationalize mimimalism and simplicity in visualizations. However, in this position paper, we call for a more expansive view of complexity as a design material, like color or texture or shape: an element of information design that can be used in many ways, many of which are beneficial to the goals of using data to understand the world around us. We describe complexity as a phenomenon that occurs not just in visual design but in every aspect of the sensemaking process, from data collection to interpretation. For each of these stages, we present examples of ways that these various forms of complexity can be used (or abused) in visualization design. We ultimately call on the visualization community to build a more nuanced view of complexity, to look for places to usefully integrate complexity in multiple stages of the design process, and, even when the goal is to reduce complexity, to look for the non-visual forms of complexity that may have otherwise been overlooked.}, subject = {Komplexit{\"a}t}, language = {en} } @book{Heinicker, author = {Heinicker, Paul}, title = {Anderes Visualisieren}, publisher = {transcript Verlag}, address = {Bielefeld}, isbn = {978-3-8394-7482-2}, doi = {10.14361/9783839474822}, publisher = {Fachhochschule Potsdam}, pages = {436}, abstract = {Ob Corona-Pandemie oder Klimawandel - Datenbilder sind zu einem zentralen Bestandteil gesellschaftlicher Diskurse geworden. Doch gerade ihre Anschaulichkeit verstellt den Blick auf die Komplexit{\"a}t von Bildprozessen. Was zeigen Datenvisualisierungen und was verschweigen sie? Und vonn wem und wie werden Daten visualisiert? Paul Heinicker formuliert eine Kritik an der abbildungsgetriebenen Kultur der Datenvisualisierung und entwickelt alternative Modelle, die sich n{\"a}her an den produktionstheoretischen Realit{\"a}ten der Datengestaltung orientieren - wozu auch die Beschreibung eigener Visualisierungspraktiken geh{\"o}rt. Dabei zeigt sich: Anderes Visualisieren realisiert sich im Dazwischen von Theorie und Praxis.}, subject = {Daten}, language = {de} } @unpublished{MoriniEschenbacherHartmannetal., author = {Morini, Francesca and Eschenbacher, Anna and Hartmann, Johanna and D{\"o}rk, Marian}, title = {From shock to shift}, series = {IEEE transactions on visualization and computer graphics}, journal = {IEEE transactions on visualization and computer graphics}, publisher = {Institute of Electrical and Electronics Engineers (IEEE)}, address = {New York}, issn = {1077-2626}, doi = {10.1109/TVCG.2023.3327185}, pages = {1 -- 11}, abstract = {We present a multi-dimensional, multi-level, and multi-channel approach to data visualization for the purpose of constructive climate journalism. Data visualization has assumed a central role in environmental journalism and is often used in data stories to convey the dramatic consequences of climate change and other ecological crises. However, the emphasis on the catastrophic impacts of climate change tends to induce feelings of fear, anxiety, and apathy in readers. Climate mitigation, adaptation, and protection—all highly urgent in the face of the climate crisis—are at risk of being overlooked. These topics are more difficult to communicate as they are hard to convey on varying levels of locality, involve multiple interconnected sectors, and need to be mediated across various channels from the printed newspaper to social media platforms. So far, there has been little research on data visualization to enhance affective engagement with data about climate protection as part of solution-oriented reporting of climate change. With this research we characterize the unique challenges of constructive climate journalism for data visualization and share findings from a research and design study in collaboration with a national newspaper in Germany. Using the affordances and aesthetics of travel postcards, we present Klimakarten, a data journalism project on the progress of climate protection at multiple spatial scales (from national to local), across five key sectors (agriculture, buildings, energy, mobility, and waste), and for print and online use. The findings from quantitative and qualitative analysis of reader feedback confirm our overall approach and suggest implications for future work.}, subject = {Erz{\"a}hlen}, language = {en} } @inproceedings{deGuentherNanniKyriazisetal., author = {de G{\"u}nther, Sabine and Nanni, Giacomo and Kyriazis, Ilias and Freyberg, Linda and D{\"o}rk, Marian}, title = {Tracing and Telling}, series = {EVA BERLIN 2023}, booktitle = {EVA BERLIN 2023}, editor = {Lengyel, Dominik and Bienert, Andreas}, address = {Cottbus}, organization = {Brandenburgische Technische Universit{\"a}t Cottbus-Senftenberg (BTU)}, isbn = {978-3-88609-891-0}, pages = {333 -- 338}, abstract = {Cultural collections have transcended the boundaries of physical showcases and storage cabinets, evolving into intricate digital webs of interconnected data. The research project Restaging Fashion aimed to expand the possibilities for experiencing the linkages in digitized cultural heritage, focusing on the visualization of collection holdings related to the history of garments. Through graph-based narratives, the project investigated the complex interplay between the linear - and at times tentative - art historical discourses and the non-linear explorations of associated cultural heritage data. The resulting visualizations have been designed with the aim to allow for curated and dynamic exploration of the collection along research essays and their interrelated graphs.}, subject = {Sammlung}, language = {en} } @article{BludauDoerkTominski, author = {Bludau, Mark-Jan and D{\"o}rk, Marian and Tominski, Christian}, title = {Unfolding Edges}, series = {Computer Graphics Forum}, volume = {42}, journal = {Computer Graphics Forum}, number = {3}, publisher = {Wiley-Blackwell}, address = {Oxford}, issn = {0167-7055}, doi = {10.1111/cgf.14831}, pages = {297 -- 309}, abstract = {Existing work on visualizing multivariate graphs is primarily concerned with representing the attributes of nodes. Even though edges are the constitutive elements of networks, there have been only few attempts to visualize attributes of edges. In this work, we focus on the critical importance of edge attributes for interpreting network visualizations and building trust in the underlying data. We propose 'unfolding of edges' as an interactive approach to integrate multivariate edge attributes dynamically into existing node-link diagrams. Unfolding edges is an in-situ approach that gradually transforms basic links into detailed representations of the associated edge attributes. This approach extends focus+context, semantic zoom, and animated transitions for network visualizations to accommodate edge details on-demand without cluttering the overall graph layout. We explore the design space for the unfolding of edges, which covers aspects of making space for the unfolding, of actually representing the edge context, and of navigating between edges. To demonstrate the utility of our approach, we present two case studies in the context of historical network analysis and computational social science. For these, web-based prototypes were implemented based on which we conducted interviews with domain experts. The experts' feedback suggests that the proposed unfolding of edges is a useful tool for exploring rich edge information of multivariate graphs.}, subject = {Visualisierung}, language = {en} } @inproceedings{BludauHallingHollyetal., author = {Bludau, Mark-Jan and Halling, Thorsten and Holly, Eva Maria and Wieloch, Jasmin and Schnaitter, Hannes and Balck, Sandra and Plakidis, Melina and Rehm, Georg and Fangerau, Heiner and D{\"o}rk, Marian}, title = {Was sehe ich? Visualisierungsstrategien f{\"u}r Datentransparenz in der Historischen Netzwerkanalyse}, series = {DHd2022 : Kulturen des digitalen Ged{\"a}chtnisses}, booktitle = {DHd2022 : Kulturen des digitalen Ged{\"a}chtnisses}, address = {Hamburg}, organization = {Verband Digital Humanities im deutschsprachigen Raum e.V.}, doi = {10.5281/zenodo.6327931}, pages = {1 -- 5}, abstract = {Die Historische Netzwerkanalyse (HNA) hat sich zu einem etablierten Forschungsfeld entwickelt. Zu ihren wichtigsten methodischen Herausforderungen geh{\"o}rt die Suggestionskraft von Visualisierungen. Die Transparenz bez{\"u}glich der Datenquellen ist daher f{\"u}r die HNA sowohl bei selbst erhobenen als auch bei sekund{\"a}r genutzten Daten Voraussetzung, will sie geisteswissenschaftlichen Kriterien der Nachpr{\"u}fbarkeit und Nachvollziehbarkeit von Interpretationen erf{\"u}llen. Dieser Beitrag beschreibt und diskutiert - aufbauend auf einem iterativen und durch Workshops sowie einer Nutzer*innenstudie begleiteten Forschungsprozess - vier Designziele zur Verwirklichung einer solchen Transparenz: 1) Aufnahme und Kommunikation von Datenprovenienzen, 2) Dokumentation vorausgegangener Prozesse, 3) Offenhaltung der Interpretierbarkeit der Daten und 4) Unterst{\"u}tzung von Folgeforschung. Anschließend werden beispielhafte Umsetzungsstrategien in Form von Prototypen pr{\"a}sentiert.}, subject = {Visualisierung}, language = {de} } @article{BruhnMeierLawrence, author = {Bruhn, Thomas and Meier, Sebastian and Lawrence, Mark G.}, title = {Interactive network visualization on the integration of mindsets and sustainability : creating conditions for emergence through a relational narrative}, series = {Innovation : The European Journal of Social Science Research}, volume = {36}, journal = {Innovation : The European Journal of Social Science Research}, number = {1}, publisher = {Routledge, Taylor \& Francis Group}, address = {London}, issn = {1351-1610}, doi = {10.1080/13511610.2022.2101987}, pages = {71 -- 84}, abstract = {Transdisciplinary research processes often involve the integration of knowledge and stakeholders from various backgrounds. Here, we introduce the story of the research project AMA (A Mindset for the Anthropocene) on the role of mindsets in the context of sustainability and present an interactive visualization tool that we developed for stakeholder mapping and research communication. Through this platform, we provide access and navigation to everyone interested in this field of research and we have simultaneously created a channel for all stakeholders to co-create content. Here, we describe the design and functionalities of the platform and the participatory way it was developed as part of our stakeholder engagement. We discuss upon how such a design allows for reflection of potential biases in transdisciplinary research processes and simultaneously catalyzing self-organization in stakeholder networks.}, subject = {Stakeholder}, language = {en} } @article{RodighieroDerryDuhaimeetal., author = {Rodighiero, Dario and Derry, Lins and Duhaime, Douglas and Kruguer, Jordan and Mueller, Maximilian C. and Pietsch, Christopher and Schnapp, Jeffrey T. and Steward, Jeff}, title = {Surprise machines : revealing Harvard Art Museums' image collection}, series = {Information Design Journal}, volume = {27}, journal = {Information Design Journal}, number = {1}, publisher = {John Benjamins Publishing Company}, address = {Amsterdam}, issn = {1569-979X}, doi = {10.1075/idj.22013.rod}, pages = {21 -- 34}, abstract = {Surprise Machines is a project of experimental museology that sets out to visualize the entire image collection of the Harvard Art Museums, with a view to opening up unexpected vistas on more than 200,000 objects usually inaccessible to visitors. The project is part of the exhibition organized by metaLAB (at) Harvard entitled Curatorial A(i)gents and explores the limits of artificial intelligence to display a large set of images and create surprise among visitors. To achieve this feeling of surprise, a choreographic interface was designed to connect the audience's movement with several unique views of the collection.}, subject = {K{\"u}nstliche Intelligenz}, language = {en} } @inproceedings{BludauDoerkTominski, author = {Bludau, Mark-Jan and D{\"o}rk, Marian and Tominski, Christian}, title = {Unfolding Edges for Exploring Multivariate Edge Attributes in Graphs}, series = {21st Eurographics Conference on Visualization}, booktitle = {21st Eurographics Conference on Visualization}, editor = {Byska, Jan and J{\"a}nicke, Stefan and Schmidt, Johanna}, publisher = {Eurographics Association}, address = {Niederlande}, isbn = {978-3-03868-143-4}, doi = {10.2312/evp.20211070}, pages = {17 -- 19}, abstract = {With this research we present an approach to network visualization that expands the capabilities for visual encoding and interactive exploration through edges in node-link diagrams. Compared to the various possibilities for visual and interactive properties of nodes, there are few techniques for interactive visualization of multivariate edge attributes in node-link diagrams. Visualization of edge attributes is oftentimes limited by occlusion and space issues of methods that globally encode attributes in a node-link diagram for all edges, not sufficiently exploiting the potential of interaction. Building up on existing techniques for edge encoding and interaction, we propose 'Unfolding Edges' as an exemplary use of an on-demand detail enhancing approach for exploration of multivariate edge attributes.}, subject = {Graph}, language = {en} } @article{BrueggemannBludauKreiseleretal., author = {Br{\"u}ggemann, Viktoria and Bludau, Mark-Jan and Kreiseler, Sarah and Casavola, Silvia and Pomerance, Jona and D{\"o}rk, Marian}, title = {Granularities of Dispersion and Materiality}, series = {Medaon : Magazin f{\"u}r J{\"u}disches Leben in Forschung und Bildung}, volume = {19}, journal = {Medaon : Magazin f{\"u}r J{\"u}disches Leben in Forschung und Bildung}, number = {36}, publisher = {HATiKVA e.V. - Die Hoffnung Bildungs- und Begegnungsst{\"a}tte f{\"u}r J{\"u}dische Geschichte und Kultur Sachsen}, address = {Dresden}, issn = {1866-069X}, pages = {1 -- 19}, abstract = {Bedeutungsvolle und sensible digitale Darstellungen f{\"u}r kulturelle Sammlungen zu finden, erfordert eine umsichtige Umsetzung und Zusammenarbeit, von der Datenmodellierung und Katalogisierung bis zur Ideenfindung und Entwicklung von Prototypen. In unserem Beitrag berichten wir von unserer designorientierten Forschung, die sich mit der Visualisierung eines Fotoarchivs {\"u}ber die j{\"u}dische Diaspora befasst. Mit dem Ziel, eine Webplattform zu schaffen, die vielf{\"a}ltige explorative und narrative Erlebnisse bietet, reflektieren wir die Verwendung digitaler und analoger Methoden f{\"u}r visuelle Sammlungen, insbesondere f{\"u}r eine Sammlung des j{\"u}dischen Kulturerbes.}, subject = {Diaspora }, language = {en} } @article{KauerDoerkBach, author = {Kauer, Tobias and D{\"o}rk, Marian and Bach, Benjamin}, title = {Towards Collective Storytelling}, series = {IEEE Computer Graphics and Applications}, volume = {45}, journal = {IEEE Computer Graphics and Applications}, number = {3}, address = {New York}, organization = {Institute of Electrical and Electronics Engineers (IEEE)}, issn = {0272-1716}, doi = {10.1109/MCG.2025.3547944}, pages = {17 -- 31}, abstract = {This work investigates personal perspectives in visualization annotations as devices for collective data-driven storytelling. Inspired by existing efforts in critical cartography, we show how people share personal memories in a visualization of COVID-19 data and how comments by other visualization readers influence the reading and understanding of visualizations. Analyzing interaction logs, reader surveys, visualization annotations, and interviews, we find that reader annotations help other viewers relate to other people's stories and reflect on their own experiences. Further, we found that annotations embedded directly into the visualization can serve as social traces guiding through a visualization and help readers contextualize their own stories. With that, they supersede the attention paid to data encodings and become the main focal point of the visualization.}, subject = {Annotation}, language = {en} } @article{MoriniGerretonPomeranceetal., author = {Morini, Francesca and Gerret{\´o}n, Manuela and Pomerance, Jona and Zeissig, Nadia and de G{\"u}nther, Sabine and D{\"o}rk, Marian and Thomet, Fidel and Freyberg, Linda and Kyriazis, Ilias and Scholz, Andrea}, title = {Critical Interactivity}, series = {IEEE Computer Graphics and Applications}, volume = {45}, journal = {IEEE Computer Graphics and Applications}, number = {3}, address = {New York}, organization = {Institute of Electrical and Electronics Engineers (IEEE)}, issn = {0272-1716}, doi = {10.1109/MCG.2025.3544684}, pages = {58 -- 72}, abstract = {We propose critical interactivity as a concept to study and design the dynamic and transitory aspects of data visualizations. Theoretically, interactivity is often described as the means to support analytical tasks, while in practice, it encompasses the techniques that alter visual representations. These notions are a useful starting point to study the role of interactivity in critical engagements with data visualizations. At the core of critical interactivity is the negotiation of authority and agency: authority as authors provide structure and context, and agency as viewers navigate and interpret the data on their own terms. This raises the critical question: who has the power to control the visualization? Drawing from four case studies in science communication, art history, anthropology, and climate advocacy, we examine how critical interactivity links exploration and narration. We reflect on the effort involved in preparing data and propose design strategies for implementing critical interactivity in data visualization.}, subject = {Interaktive Medien}, language = {en} } @article{CayNagelMeier, author = {{\c{C}}ay, Damla and Nagel, Till and Meier, Sebastian}, title = {The UDV Card Deck}, series = {IEEE Computer Graphics and Applications}, volume = {45}, journal = {IEEE Computer Graphics and Applications}, number = {4}, address = {New York}, organization = {Institute of Electrical and Electronics Engineers (IEEE)}, issn = {0272-1716}, doi = {10.1109/MCG.2025.3556573}, pages = {30 -- 44}, abstract = {This paper presents the Urban Data Visualization (UDV) card deck, a tool designed to facilitate reflective discussions and inform the collaborative design process of urban data visualizations. The UDV card deck was developed to bridge the gap between theoretical knowledge and practice in workshop settings, fostering inclusive and reflective approaches to visualization design. Drawing from urban visualization design literature and the results from a series of expert workshops, these cards summarize key considerations when designing urban data visualizations. The card deck guides different activities in an engaging, collaborative, and structured format, promoting inclusion of diverse urban actors. We introduce the card deck and its goals, demonstrate its use in four case studies, and discuss our findings. Feedback from workshop participants indicates that the UDV card deck can serve as a supportive and reflective tool for urban data visualization researchers, designers and practitioners.}, subject = {Fallstudie}, 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} } @inproceedings{HinrichsWindhagerElAssadyetal., author = {Hinrichs, Uta and Windhager, Florian and El-Assady, Mennatallah and Alexander, Eric and Bradley, Adam and Bludau, Mark-Jan}, title = {From Sketching to Coding}, series = {Book of Abstracts}, booktitle = {Book of Abstracts}, editor = {Baillot, Anne and Scholger, Walter and Tasovac, Toma and Vogeler, Georg}, address = {Graz}, organization = {Zentrum f{\"u}r Informationsmodellierung - Austrian Centre for Digital Humanities}, doi = {10.5281/zenodo.8107882}, pages = {1 -- 2}, abstract = {This workshop will explore strategies for teaching visualization literacy - from sketching to creating visualizations using computational tools. Led by instructors from the humanities, visual analytics, design, and computer science, sessions will discuss different methodologies and challenges of teaching visualization to audiences with varied technical and disciplinary expertise and goals.}, subject = {Visualisierung}, language = {en} } @article{Doerk, author = {D{\"o}rk, Marian}, title = {Conceptual Analogues: Coming to Terms with Data Visualisation}, series = {Interface Critique}, volume = {5}, journal = {Interface Critique}, publisher = {arthistoricum.net}, address = {Heidelberg}, issn = {2570-0472}, doi = {10.11588/ic.2025.1.113533}, pages = {51 -- 72}, abstract = {Humanist data visualisation can make a profound contribution to stimu.ate a form of curiosity that recognizes and appreciates the entangled shimmer of the world.}, subject = {Feminismus}, language = {en} } @inproceedings{EingartnerDruckerDoerk, author = {Eingartner, Theresa and Drucker, Johanna and D{\"o}rk, Marian}, title = {Inflecting Data Visualizations for Web-based Scrollytelling}, series = {EuroVis 2025 Short Papers}, booktitle = {EuroVis 2025 Short Papers}, editor = {El-Assady, Mennatallah and Ottley, Alvitta and Tominksi, Christian}, address = {Niederlande}, organization = {Eurographics Association}, doi = {10.2312/evs.20251088}, pages = {5}, abstract = {We propose the idea of inflections as a method for capturing and conveying interpretative interactions with data visualizations. Aiming to narrow the gap between data analysis and story authoring, inflections are subtle modulations of a visualization's graphical attributes that guide attention, highlight important patterns, and embed communicative cues. By parameterizing view changes and annotations in visualizations, authors can embed insights from their data analysis into story segments and connect them with the respective visualization states. This paper presents the general concept and a technical architecture supporting inflectable data visualizations. By leveraging native web technologies and established visualization conventions, we propose a flexible and extensible approach to inflecting visualizations that link exploratory data analysis and data-driven storytelling.}, subject = {Visualisierung}, language = {en} }