VisGap2023 - The Gap between Visualization Research and Visualization Software
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Item Better Information Visualization Software Through Packages for Data Science Ecosystems(The Eurographics Association, 2023) Henkin, Rafael; Gillmann, Christina; Krone, Michael; Reina, Guido; Wischgoll, ThomasGood software development practices are important factors for the successful translation of visualization research into software. This paper argues for the creation of packages for data science ecosystems, with Python and R as case studies, as a way to employ existing tools and infrastructure towards better information visualization software. The paper describes open practices, sustainability and FAIR software to motivate package development. The ecosystems of Python and R are then reviewed based on general software development aspects and how common features of visualization software, such as rendering and interactivity, are supported. It concludes with the software engineering benefits related to creating packages in Python and R and initiatives to overcome obstacles that may hinder the development of better software.Item Reflections on the Developments of Visual Analytics Systems for the K Computer System Log Data(The Eurographics Association, 2023) Nonaka, Jorji; Fujita, Keijiro; Fujiwara, Takanori; Sakamoto, Naohisa; Yamamoto, Keiji; Terai, Masaaki; Tsukamoto, Toshiyuki; Shoji, Fumiyoshi; Gillmann, Christina; Krone, Michael; Reina, Guido; Wischgoll, ThomasFlagship-class high-performance computing (HPC) systems, also known as supercomputers, are large, complex systems that require particular attention for continuous and long-term stable operations. The K computer was a Japanese flagship-class supercomputer ranked as the fastest supercomputer in the Top500 ranking when it first appeared. It was composed of more than eighty thousand compute nodes and consumed more than 12 MW when running the LINPACK benchmark for the Top500 submission. A combined power substation, with a natural gas co-generation system (CGS), was used for the power supply, and also a large air/water cooling facility was used to extract the massive heat generated from this HPC system. During the years of its regular operation, a large log dataset has been generated from the K computer system and its facility, and several visual analytics systems have been developed to better understand the K computer's behavior during the operation as well as the probable correlation of operational temperature with the critical hardware failures. In this paper, we will reflect on these visual analytics systems, mainly developed by graduate students, intended to be used by different types of end users on the HPC site. In addition, we will discuss the importance of collaborative development involving the end users, and also the importance of technical people in the middle for assisting in the deployment and possible continuation of the developed systems.Item The Lack of Specialized Symbology and Visual Interaction Design Guidance for Sub-Sea Military Operations(The Eurographics Association, 2023) Walsh, Gareth; Sindlev Andersen, Nicklas; Stoianov, Nikolai; Jänicke, Stefan; Gillmann, Christina; Krone, Michael; Reina, Guido; Wischgoll, ThomasThis paper addresses the lack and need for specialized and visually effective interaction design guidance for sub-sea military operations. We identify gaps in the implementation of best practice visualization techniques, building upon our recently published survey on visual interfaces used in military decision support systems. Our analysis focuses on the current NATO symbology standard and several sub-sea military frontend systems to identify deficiencies and their underlying causes. Such origins of deficiencies include inadequate design consideration of environmental conditions, as well as incomplete hardware and software requirements for sub-sea conditions. While many such gaps exist, for the purposes of this paper, we narrow our focus to exploring the potential for a new sub-sea symbology for the maritime domain, drawing from insights gained and developed through our participation in the EDIDP (European Defence Industrial Development Programme) project CUIIS (Comprehensive Underwater Intervention Information System). We propose extending existing NATO military standards by creating a comprehensive framework for a new sub-sea symbology and visual interaction design. This framework includes a set of semiotic communication symbols for military divers, which can easily be combined based on the most common messages required for effective communication between command and military divers. This paper concludes by highlighting the opportunities for improvement in NATO Military Symbology for sub-sea military operations.Item Many Types of Design Needed for Effective Visualizations(The Eurographics Association, 2023) Brath, Richard; Gillmann, Christina; Krone, Michael; Reina, Guido; Wischgoll, ThomasFor effective visualizations, there are many types of design to consider. Visualization design focuses on core theory of tasks, data and visual encodings. Workflow design, user interface design and graphic design all contribute to a successful visualizations. All design aspects range from initial design exploration to iterative design refinement. Guidelines can help, but have limitations. Examples illustrate visualization issues arising from missing domain knowledge, facilitating alternative designs, refining labeling, layouts to aid workflow, frankenvis, 3D timeseries, and ineffective design collaboration.Item VisGap 2023: Frontmatter(The Eurographics Association, 2023) Gillmann, Christina; Krone, Michael; Reina, Guido; Wischgoll, Thomas; Gillmann, Christina; Krone, Michael; Reina, Guido; Wischgoll, Thomas