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Call for Tutorials & Workshops | DIAGRAMS 2022
by DIAGRAMS CONFERENCE 23 Feb '22

23 Feb '22

*TL;DR: deadline for workshops & tutorials MARCH 6 (DIAGRAMS 2022 )* **** Call for Workshops and Tutorials: Diagrams 2022 **** 13th International Conference on the Theory and Application of Diagrams September 14 – 16, 2022 in Rome, Italy Diagrams is an international interdisciplinary conference series, covering all aspects of research on the theory and application of diagrams. We invite proposals for half-day or full-day workshops. These workshops will be held before the main conference, and take place at the main conference venue. We also invite proposals for tutorials of 1.5 hours in length. Tutorials are expected to address topics that are of interest to the Diagrams 2022 conference attendees. Tutorials differ from workshops in that they do not solicit contributions from attendees. Previously, attendees have particularly enjoyed tutorials that are interactive and spark debate. Workshops and Tutorials are expected to address topics that are of interest to the Diagrams 2022 conference attendees. Please refer to the calls for the three tracks for their associated list of topics: http://www.diagrams-conference.org/2022/index.php/calls/main-track/ http://www.diagrams-conference.org/2022/index.php/calls/philosophy/ http://www.diagrams-conference.org/2022/index.php/calls/psychology-of-diagr… ———————————————————————- Submission of Workshop Proposals ———————————————————————- A workshop proposal must contain: 1. A single page listing a. the title of the workshop b. the names and contact information for all organizers c. a brief biography of the main organizer d. the anticipated duration of the workshop (half- or full-day) 2. A description of the topic and rationale for the workshop, including a brief description of why the workshop will be relevant to Diagrams 2022 conference attendees. 3. A Call for Participation document of up to 500 words that can be used to advertise the workshop on the Diagrams 2022 conference website. Workshop organizers are expected to distribute their call for papers and solicit papers for submission. Workshop organisers must ensure that paper submission deadlines are at least two weeks after those for the main conference. In addition, they are encouraged to set submission deadlines after the notification date for Diagram 2022 papers (i.e. May 31, 2022). They must also notify authors of acceptance before the early registration deadline (mid of August, 2022). ———————————————————————- Submission of Tutorial Proposals ———————————————————————- A tutorial proposal must contain: 1. A single page listing: the title of the tutorial, the names and contact information for all organizers, and brief biographies of the main organizers. 2. A description of the topic and rationale for the tutorial, including a brief description of why the tutorial will be relevant to Diagrams 2022 conference attendees. 3. Information on any requirements for delivering the tutorial. This could include, for example, the use of a whiteboard or other materials. 4. An abstract, of up to 500 words, describing the tutorial that can be used to advertise the tutorial on the Diagrams 2022 website. ———————————————————————- How to Submit a Proposal ———————————————————————- Submissions should be made by 6th March 2022 via EasyChair: https://easychair.org/my/conference?conf=diagrams2022 Please choose the track “Workshops and Tutorials” for your submission. ———————————————————————- Important Dates ———————————————————————- Workshop and Tutorial proposal submissions 6th March 2022 Notification 13th March 2022 ———————————————————————- For more information please contact the Diagrams 2022 Senior Program Chair: Sven Linker s.linker’(a)xn--lancaster-fb0e.ac.uk -- *Publicity Chair, Diagrams Conference 2022* Amy Rae Fox (she / her) <https://www.mypronouns.org/what-and-why/> PhD Candidate Cognitive Science, UC San Diego www.amyraefox.com @thoughtafox <https://twitter.com/thoughtafox>

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Conferences: IEEE VR 2022 Call for student volunteers - deadline Feb 25
by IEEE VR Publicity 22 Feb '22

22 Feb '22

The call for Student Volunteers (SV) is now open! SVs will have an opportunity to be much more involved with the conference attendees, getting to learn new skills, know more peers and receive some benefits! All the details you need to know are in the link below and do reach out to studentvolunteers2022(a)ieeevr.org if there are any enquiries. Call for Student Volunteers: https://ieeevr.org/2022/contribute/studentVolunteers/ <https://ieeevrpublicity-dot-yamm-track.appspot.com/1rCPx_-WnNIMh8KqcayecYo3…> [image: beacon]

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CfP: AVI 2022 Workshop on Audio-Visual Analytics (Submission: March, 27)
by Rind Alexander 22 Feb '22

22 Feb '22

**************************************** Call for Short Papers AVI 2022 Workshop on Audio-Visual Analytics Location: Rome, Italy (hybrid format pending) Workshop Date: June 7, 2022 Submission Deadline: March 27, 2022 Website: https://audio-visual-analytics.github.io/avi2022.html **************************************** About the Workshop In their daily lives, people use more than one sense to perceive and interpret their environment. Therefore, we think designing audio-visual interfaces will help human analysts understand their data even better in the future. The 3rd Workshop on Audio-Visual Analytics continues building a community (AVAC) of researchers interested in combining information visualization and sonification. The first two workshops were held interactively at the Audio Mostly 2021 and the IEEE VIS 2021 conferences. The third edition at AVI 2022 will be the first one with the possibility to submit short papers or position papers. The workshop will be held in hybrid format (confirmation pending) and is part of the International Conference on Advanced Visual Interfaces (AVI). Website: https://audio-visual-analytics.github.io/avi2022.html Submission: https://easychair.org/conferences/?conf=wava22 Call for Participation and Submission The workshop encourages the submission of short papers or position papers addressing the workshop theme and the list of topics below. Submitted papers should discuss both visual and auditory representations of data to be interpreted by humans. Ideally, the contribution can be categorized to one of the following topics: Theory, Tools, Evaluation, Design, and Accessibility.  All papers must be original and not simultaneously submitted to another journal or conference. The following paper categories are welcome: - Short papers describe work in progress with respect to the workshop focus. - Position papers are problem discussions or statements describing the author’s relevant experience and ideas in regards to methods and methodologies for visualization and sonification research, and in particular the focus topic of the workshop. Position papers and short papers should be 2-4 pages long with additional pages for references only and prepared according to two-colum CEUR-ART template. Word / Latex / Overleaf-Templates can be downloaded via the workshop website. The workshop program committee will review the submitted papers, and select 5-8 papers for presentation at the workshop based on their quality and relevance to the workshop topics. Position papers will be selected according to their importance and relevance for the workshop topics, and how well they will fit the planned discussions. Topics of interest Any combination of two or more of these topics (not exclusive): - Audio-Visual Analytics - Information Visualization - Sonification and Auditory Display - Multimodal Interfaces - Usability and Accessibility - Human-Computer Interaction Workshop Structure This half-day workshop will be a combination of paper presentations and an open discussion. Authors will be able to present their papers both on site or virtually. In case of a virtual presentation, we will ask authors of accepted papers to provide a previously recorded video of their presentation and to be online for the Q&A and the open discussion.  Program and Organizing Committee Wolfgang Aigner, St. Poelten University of Applied Sciences, Austria and TU Wien, Austria Niklas Elmqvist, University of Maryland, College Park, USA Kajetan Enge, St. Poelten University of Applied Sciences, Austria and University of Music and Performing Arts Graz, Austria Robert Hoeldrich, University of Music and Performing Arts Graz, Austria Michael Iber, St. Poelten University of Applied Sciences, Austria Alexander Rind, St. Poelten University of Applied Sciences, Austria Niklas Rönnberg, Linköping University, Sweden Bruce Walker, Georgia Institute of Technology, USA ... Important Dates - Submission deadline: 27 March 2022 - Notification: 27 April 2022 - Camera-ready: 08 May 2022 - Workshop date: 07 June 2022 (morning) Publication We are planning to published accepted papers as part of a CEUR workshop proceedings volume under the CC-BY 4.0 open access license. The copyright remains with the papers’ authors/owners of the individual papers, which allows them to publish an extended version elsewhere. Venue The hybrid workshop will be held in Villa Tuscolana Park Hotel, Frascati, Rome, Italy, and online as part of AVI 2022. At least one author needs to participate and present each accepted paper. Registration at AVI will be required for all participants. Contact All questions about submissions should be emailed to kajetan.enge(a)fhstp.ac.at and alexander.rind(a)fhstp.ac.at _________________________________________________ Dipl.-Ing. Mag. Alexander Rind Researcher Institute of Creative\Media/Technologies Department of Media and Digital Technologies St. Pölten University of Applied Sciences Campus-Platz 1, A-3100 St. Pölten office: A.3.21 or elsewhere phone: +43/2742/313 228-653 e-mail: alexander.rind(a)fhstp.ac.at twitter: @alexrindvis https://icmt.fhstp.ac.at/en/team/alexander-rind FN 146616m, LG St. Pölten, DVR 1028669F "Information visualizations should do for the mind what automobiles do for the feet." (Stuart Card, 2008) "AI itself does not talk to the user - you still need the last mile of the interfaces." (Rico Malvar, 2019) _________________________________________________ Dipl.-Ing. Mag. Alexander Rind Researcher Institute of Creative\Media/Technologies Department of Media and Digital Technologies St. Pölten University of Applied Sciences Campus-Platz 1, A-3100 St. Pölten office: A.3.21 or elsewhere phone: +43/2742/313 228-653 e-mail: alexander.rind(a)fhstp.ac.at twitter: @alexrindvis https://icmt.fhstp.ac.at/en/team/alexander-rind FN 146616m, LG St. Pölten, DVR 1028669F "Information visualizations should do for the mind what automobiles do for the feet." (Stuart Card, 2008) "AI itself does not talk to the user - you still need the last mile of the interfaces." (Rico Malvar, 2019)

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Lecturer in Visualisation for AI and Data Science at King’s College London
by Abdul Rahman, Alfie 21 Feb '22

21 Feb '22

*** Apologies for cross-posting *** Come and join us at the Department of Informatics, King’s College, as a Lecturer in Visualisation for AI and Data Science. We are a growing, dynamic, and experienced group of visualization researchers based in central London. Job title: Lecturer in Visualisation for AI and Data Science Closing date: 17 Mar 2022 Job advert: https://jobs.kcl.ac.uk/gb/en/job/041268/Lecturer-in-Visualisation-for-AI-an…

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Open PostDoc Position in Information Visualization / Visual Analytics at Linköping University (LiU), Sweden
by Andreas Kerren 20 Feb '22

20 Feb '22

*** Apologies for cross-posting *** Come and join us! We are seeking for an engaged and bright PostDoc to work with us in the areas of Information Visualization and Visual Analytics. This position (ref. LiU-2022-00141) is part of a joint collaboration between the two largest research programs in Sweden, the Wallenberg AI, Autonomous Systems and Software Program (WASP) and the SciLifeLab and Wallenberg National Program for Data-Driven Life Science (DDLS), with the ultimate goal of solving ground-breaking research questions across disciplines. The successful candidate will become member of an interdisciplinary research project entitled “Visual Analytics for Enhancing Quality and Trust in Genome-wide Expression Clustering and Annotation”, where the Information Visualization group at Linköping University (LiU) and the Systems Biology group at the Royal Institute of Technology (KTH) work closely together. There is a need for a functional genome-wide annotation of the protein-coding genes to get a deeper understanding of mammalian biology. The new data-driven strategy to be developed in the project is based on interpretable unsupervised learning (e.g., dimensionality reduction and clustering) of whole-body co-expression patterns, supported by state-of-the-art visual analytics. Interactive guiding of the clustering process will be used to explore the gene expression landscape in humans and other mammalian species, and to create a whole-body map of all protein-coding genes in all major cell types, tissues and organs. This will allow for the improvement of the quality of the classification of all protein-coding genes according to their whole-body co-expression patterns, resulting in every gene being annotated to a unique expression cluster together with other genes with a similar body-wide pattern. The focus of this PostDoc position at LiU will be on research and development of an interactive and interpretable (human-in-the-loop) clustering strategy to reach these goals. The successful candidate will develop visual analytics approaches that provide fine-grained quality analysis of the clustering processes and better interpretation/annotation of clusters. Please visit the official vacancy website of Linköping University for a more detailed description of the duties, formal requirements, and on how to apply for this position: https://liu.se/en/work-at-liu/vacancies?rmpage=job&rmjob=18150&rmlang=UK The application deadline is February 28, 2022. The advertised position will be affiliated to the iVis research group led by Professor Andreas Kerren (see http://bit.ly/ivis-liu) Linköping University, Norrköping Campus, which is part of the division for Media and Information Technology. The research group mainly focuses on the explorative analysis and visualization of typically large and complex information spaces, for example in environmental research, transportation systems, social sciences, or artificial intelligence. Our vision is to attack the big data challenge by a combination of human-centered data analysis and interactive visualization for deriving meaning from the data and final decision making. Our research is highly relevant for academia and industry as both make increasing use of data-intensive technologies. We are looking forward to receiving your application! Please also consider to share this message with any great candidates. Best regards, Andreas Kerren iVis Group @ Linköping University -- +------------------------------------------------------- + Prof. Dr. Andreas Kerren + + Linköping University + Department of Science and Technology + Kopparhammaren 2, Room 3028 + SE-602 33 Norrköping, Sweden + + Phone: +46 11 36 34 06 + Email: andreas.kerren(a)liu.se + WWW: https://liu.se/en/employee/andke01 + WWW: https://ivis.itn.liu.se +-------------------------------------------------------

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Openings on the VGTC Executive Committee
by Paul Rosen 17 Feb '22

17 Feb '22

Dear VGTC Community, Several VGTC Executive Committee members are reaching the end of their tenure, and we are seeking self-nominations to fill their roles. Nominations are sought from active participants of any VGTC sponsored conference (https://tc.computer.org/vgtc/conferences/currently-sponsored-events/) at any career level, from industry or academia. The available positions include: Vice Chair (helps the general chair manage the VTGC) Finance Co-chair (helps the finance chair manage the finances for VTGC) Secretary (the go-to person for VTGC organization, organizes voting, meeting notes, etc.) International Liaison (setup sharing and collaboration with other associations) Publications Chair (gather and disseminates best publication practices from VGTC as well as interfacing to the IEEE publication office) Member-at-large (help the committee chair with special projects, brings new perspectives to the committee) To learn more about the VGTC, please visit: http://vgtc.org/ If you would like to self-nominate, please complete the survey at: https://forms.gle/FUU6qzcuzitvKqf9A Self-nominations are due Feb 25th AOE. You may direct any questions to me, Jim Ahrens (current VGTC Chair), or Bongshin Lee (incoming VGTC Chair). Thanks, Paul (on behalf of the VGTC) ==================================== Paul Rosen, Ph.D. Associate Professor Computer Science and Engineering University of South Florida prosen(a)usf.edu<mailto:prosen@usf.edu> http://www.cspaul.com

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CFP: AVI 2022 workshop on Map-based Interfaces and Interactions (MAPII 2022)
by Masood Masoodian 15 Feb '22

15 Feb '22

****************************************************************************** Call for Papers – Map-based Interfaces and Interactions (MAPII 2022)  AVI 2022 Workshop   07 June 2022 – Rome, Italy More info: http://avcd.aalto.fi/mapii2022/ ****************************************************************************** ABOUT THE WORKSHOP Maps and map-like visualizations are increasingly being used as the basis for many types of interactive tools and applications. This workshop aims to bring together research on such map-based interfaces which is currently dispersed through different publication venues and disciplines. This workshop will act as a common space for sharing map-related research expertise coming from the fields of visualization, user interface design and interaction design. This workshop is part of the International Conference on Advanced Visual Interfaces (AVI 2022), and is supported by the IFIP TC 13 Working Group on Human-Centred Technology for Sustainability (WG 13.10). CALL FOR PARTICIPATION We invite the participation of researchers, designers, developers and practitioners from a diverse range of backgrounds concerned with the design, development, evaluation and deployment of map-based interactive visualizations, applications, tools and services. Prospective workshop participants are invited to submit a position paper describing their contributions to the field of the workshop and highlight their specific interests in the workshop topics. Numbers permitting, the workshop will also be open to other participants without an accepted position paper. This workshop aims to include a wide range of topics related to map-based visualizations, interfaces and interactions, including but not limited to: – Theoretical foundations of map design. – Principles and practice of design of maps and map-like visualizations. – Design of map-based user interfaces and interactions. – Evaluation and user studies of map-based visualizations, interfaces and interactions. – Applications of map-based visualizations, interfaces and interactions in areas such as geographic information systems, epidemiology and healthcare, climate and environment, sustainability, education, social sciences and humanities. WORKSHOP STRUCTURE This full day workshop will be interactive and informal. It will combine short presentations of accepted position papers with periods of discussions, aimed at generating ideas for future research directions. The workshop will also include a hands-on activity, during which the participants will be invited to sketch designs for a map-based interactive mobile application in small groups. The designs will then be shared and discussed in the workshop. We hope to run the workshop in person at the conference. Provisions will however be made to run the workshop in remote or hybrid mode if necessary. SUBMISSIONS Position papers should be of maximum 6 pages, and prepared according to the ACM proceedings format (https://www.acm.org/publications/proceedings-template) Submissions should be made through Easychair (https://www.easychair.org/conferences/?conf=mapii2022) The workshop programme committee will review the submitted position papers, and select 10-15 papers for presentation at the workshop based on their quality and relevance to the workshop topics. Accepted position papers will be published in the workshop proceedings, and will be made available through the workshop website. The workshop will include a discussion on publication of the extended versions of the position papers, for instance, in the form of a special issue of a journal or an edited book. IMPORTANT DATES Submission deadline: 20 March 2022 Notification: 20 April 2022 Camera-ready: 01 May 2022 Workshop date: 07 June 2022 WORKSHOP ORGANIZERS Masood Masoodian, Aalto University (Finland) Saturnino Luz, University of Edinburgh (UK) PROGRAMME COMMITTEE Bridget Kane, Karstad University (Sweden) Saturnino Luz, University of Edinburgh (UK) Masood Masoodian, Aalto University (Finland) Shane Sheehan, University of Edinburgh (UK) Artemis Skarlatidou, University College London (UK) Robert Spence, Imperial College London (UK) Thomas Rist, Augsburg University of Applied Sciences (Germany) -- Prof. Masood Masoodian Visual Communication Design Aalto University avcd.aalto.fi

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WOIV'22: Extended Deadline -- 6th International Workshop on In Situ Visualization
by Tom Vierjahn 14 Feb '22

14 Feb '22

Hi all, we have extended the submission deadline for WOIV’22 until March 7. And we have added a 3rd submission type: lightning presentations (2 to 4 pages, published via Zenodo). Please find the updated CfP below and on the webpage https://woiv.gitlab.io Cheers, Tom ----- # WOIV'22: 6th International Workshop on In Situ Visualization * Held in conjunction with ISC 2022 * Hamburg, Germany, June 2, 2022 ## Scope Large-scale HPC simulations with their inherent I/O bottleneck have made in situ visualization an essential approach for data analysis, although the idea of in situ visualization dates back to the golden era of coprocessing in the 1990s. In situ coupling of analysis and visualization to a live simulation circumvents writing raw data to disk for post-mortem analysis – an approach that is already inefficient for today’s very large simulation codes. Instead, with in situ visualization, data abstracts are generated that provide a much higher level of expressiveness per byte. Therefore, more details can be computed and stored for later analysis, providing more insight than traditional methods. We encourage contributed talks on methods and workflows that have been used for large-scale parallel visualization, with a particular focus on the in situ case. Presentations on codes that closely couple numerical methods and visualization are particularly welcome. Speakers should detail if and how the application drove abstractions or other kinds of data reductions and how these interacted with the expressiveness and flexibility of the visualization for exploratory analysis. Presentations on codes that closely couple numerical methods and visualization are particularly welcome. Speakers should detail frameworks used and data reductions applied. They should also indicate how these impacted the flexibility of the visualization for exploratory analysis. Of particular interest to WOIV and its attendees are recent developments for in situ libraries and software. Submissions documenting recent additions to existing in situ software or new in situ platforms are highly encouraged. WOIV is an excellent place to connect providers of in situ solutions with potential customers. For the submissions we are not only looking for success stories, but are also particularly interested in those experiments that started with a certain goal or idea in mind, but later got shattered by reality or insufficient hardware/software. Areas of interest for WOIV include, but are not limited to: * Techniques and paradigms for in situ visualization. * Algorithms relevant to in situ visualization. These could include algorithms empowered by in situ visualization or algorithms that overcome limitations of in situ visualization. * Systems and software implementing in situ visualization. These include both general purpose and bespoke implementations. This also includes updates to existing software as well as new software. * Workflow management. * Use of in situ visualization for application science or other examples of using in situ visualization. * Performance studies of in situ systems. Comparisons between in situ systems or techniques or comparisons between in situ and alternatives (such as post hoc) are particularly encouraged. * The impact of hardware changes on in situ visualization. * The online visualization of experimental data. * Reports of in situ visualization failures. * Emerging issues with in situ visualization. ## Submissions We accept submissions of short papers (6 to 8 pages), full papers (10 to 12 pages) and lightning presentations (2 to 4 pages) in Springer single column LNCS style. Please find LaTeX and Word templates at https://woiv.gitlab.io/woiv22/template. `Submissions are exclusively handled via EasyChair: https://woiv.gitlab.io/woiv22/submit. The review process is single or double blind, we leave it to the discretion of the authors whether they want to disclose their identity in their submissions. All submissions will be peer-reviewed by experts in the field, and will be evaluated according to relevance to the workshop theme, technical soundness, thoroughness of success/failure comparison, and impactfulness of method/results. Accepted short and full papers will appear as post-conference workshop proceedings in the Springer Lecture Notes in Computer Science (LNCS) series; lightning presentations will be published via Zenodo. The submitted versions will be made available to workshop participants during ISC. ## Important Dates * Submission deadline (extended): March 7, 2022, anywhere on earth * Notification of acceptance: April 15, 2022 * Final presentation slides due: May 10, 2012, anywhere on earth (subject to change) * Workshop: June 2, 2022 * Camera-ready version due: July 1, 2022 (subject to change, extrapolated from previous years) ## Chairs * Peter Messmer, NVIDIA * Tom Vierjahn, Westphalian University of Applied Sciences, Bocholt, Germany ## Steering Committee * Steffen Frey, University of Groningen, The Netherlands * Kenneth Moreland, Oak Ridge National Laboratory, USA * Thomas Theussl, KAUST, Saudi Arabia * Guido Reina, University of Stuttgart, Germany * Tom Vierjahn, Westphalian University of Applied Sciences, Bocholt, Germany ## Website, Venue, Registration * Website: https://woiv.gitlab.io * Submission system: https://woiv.gitlab.io/woiv22/submit * Template: https://woiv.gitlab.io/woiv22/template * Venue: https://www.isc-hpc.com (ISC 2022) * Workshop registration: https://woiv.gitlab.io/woiv22/register ## Contact E-Mail: woiv(a)googlegroups.com

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Conferences: IEEE VR 2022: Diversity and Inclusion scholarships for early career researchers and undergraduate students
by IEEE VR Publicity 11 Feb '22

11 Feb '22

We are happy to announce that there are two scholarship options at IEEE VR 2022. The Diversity and Inclusion Scholarship is aimed at early-career researchers from the field of VR ( https://ieeevr.org/2022/attend/diversity-and-inclusion-scholarship/ <https://ieeevrpublicity-dot-yamm-track.appspot.com/19PETuMeu_g3QBz0Ycwr12hR…>) and the Bridge to VR Scholarship is aimed at undergraduate students ( https://ieeevr.org/2022/contribute/bridge-to-vr/ <https://ieeevrpublicity-dot-yamm-track.appspot.com/1ggoffAlKk0uu9uZ3RnW-xvq…>). The latter does not require undergraduate students to have prior experience within the field of VR research. Both scholarships cover registration costs for the conference and provide networking opportunities. Please find further information about the application process under the provided links. IEEE VR 2022 Diversity and Inclusion Scholarship <https://ieeevrpublicity-dot-yamm-track.appspot.com/1-FtvqtaP62PstNOdD3fU1tp…> <https://ieeevrpublicity-dot-yamm-track.appspot.com/14pgTDQTMTwmnHfDEeOObJMU…> Virus-free. www.avast.com <https://ieeevrpublicity-dot-yamm-track.appspot.com/1_FXLeaV2s7FcNgGnRlrH6He…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> [image: beacon]

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Second Call for Papers - JGAA special issue on Parameterized and Approximation Algorithms in Graph Drawing
by Giordano Da Lozzo 07 Feb '22

07 Feb '22

SECOND CALL FOR PAPERS Special Issue on Parameterized and Approximation Algorithms in Graph Drawing of Journal of Graph Algorithms and Applications (JGAA) Dear Colleagues, It is a great pleasure to invite you to submit a paper to the Special Issue of Journal of Graph Algorithms and Applications (JGAA) on "Parameterized and Approximation Algorithms in Graph Drawing". In the course of a few decades, the fields of parameterized complexity and approximation algorithms have emerged as distinguished research areas providing an impressive collection of broadly usable methodologies and remarkable theoretical and practical contributions. These branches of complexity theory provide a framework of powerful techniques that allow us to tackle hard (often NP-hard) problems, by either considering restricted graph classes or by seeking solutions "close" to the optimal ones. Moreover, in recent years, the research efforts in these two fields have converged into the study of the unified notion of parameterized approximation algorithms. CFP on the journal's page: https://jgaa.info/docs/cfp-param-algo.pdf Submission Deadline: *February 28, 2022.* Topics ====== The emphasis of this special issue is on original results in the areas of fixed-parameter tractable and approximation algorithms in graph drawing and network visualization. This includes, but is not limited to, theoretical and combinatorial aspects that arise at the interface of graph drawing with computational and discrete geometry, combinatorial optimization, visual computing, VLSI and computer-aided design, computer graphics, and information visualization. The range of topics includes: - fixed-parameter tractable and approximation algorithms - (parameterized) inapproximability - W[k]-hardness - parameterized approximations - (lossy) kernelization - fine-grained complexity of approximations - subexponential-time approximations Other topics that are not listed but that might be of interest for the study of parameterized and approximation algorithms in graph drawing will also be evaluated. To bridge the gap between theory and practice, we welcome contributions dealing with techniques and data structures to obtain efficient parameterized and approximation algorithms to tackle graph-visualization problems as well as implementations, experimental evaluations, and algorithm engineering issues of approximation, parameterized, and kernelization algorithms that emerge in practice. Paper Submission ================ We invite authors to submit papers describing original research of theoretical or practical significance concerned with parameterized and approximation algorithms in graph drawing and network visualization until February 28, 2022. We aim for a fast reviewing process in order to have this special issue available at the end of 2022. Papers should be submitted to the editors of the special issue in PDF format. All communications between the editors, authors, and reviewers will be done by email unless otherwise requested by the author or reviewer. All submissions must be formatted using the LaTeX style file of Journal of Graph Algorithms and Applications (http://jgaa.info/authors.jsp) The default margins and fonts must not be modified. The submission should contain a scholarly exposition of ideas, techniques, and results, including motivation and a clear comparison with related work. The claims of the paper should be fully substantiated, including full proofs or appropriate experimental data. Papers of good quality that do not fit within the scope of this special issue might be handled as regular JGAA submissions. Guest Editors ============= Giordano Da Lozzo, Roma Tre University; giordano.dalozzo(a)uniroma3.it Philipp Kindermann, Universität Trier; kindermann(a)uni-trier.de

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