News

Open Position: Senior Lecturer in Information Visualization!

We have an open senior lecturer position in Information Visualization!
More information about prerequisites, merits, and the application procedure is provided here under the reference number 2022/1108-2.2.1. Questions should be addressed via email to Prof. Andreas Kerren.

Deadline: January 9, 2023

Open Position: PostDoc in Information Visualization and Visual Analytics!

We have an open postdoc position in Information Visualization and Visual Analytics!
More information about prerequisites, merits, and the application procedure is provided here under the reference number 2022/1019-2.2.1. Questions should be addressed via email to Prof. Andreas Kerren.

Deadline: January 9 February 10, 2023

ISOVIS Group at IEEE VIS 2022

Angelos Chatzimparmpas (with Dr. Rafael M. Martins, Dr. Kostiantyn Kucher, and Prof. Andreas Kerren as co-authors) presented an invited TVCG article titled "FeatureEnVi: Visual Analytics for Feature Engineering Using Stepwise Selection and Semi-Automatic Extraction Approaches" at IEEE VIS 2022 in Oklahoma City, USA during October 16–21, 2022 (hybrid event).

Additionally, Dr. Kostiantyn Kucher has presented (remotely) a workshop paper titled "An Interdisciplinary Perspective on Evaluation and Experimental Design for Visual Text Analytics: Position Paper" at BELIV 2022, and Zeyang Huang (with Dr. Kostiantyn Kucher and Prof. Andreas Kerren as co-authors) contributed a poster paper titled "Towards an Exploratory Visual Analytics System for Multivariate Subnetworks in Social Media Analysis".

Special Issue on Visual Text Analytics

Prof. Andreas Kerren is co-editing a special issue on Visual Text Analytics of the Information Visualization Journal. Paper submission deadline is on January 31, 2023.

PhD Student's Visit to Arizona State University

Angelos Chatzimparmpas has visited Arizona State University during summer 2022, where he stayed and worked for two months at Prof. Ross Maciejewski's VADER Lab. The trip was financed by Linnaeus University’s strategic mobility fund for doctoral students in 2022 and a honorarium from the Center for Accelerating Operational Efficiency (CAOE) led by Arizona State University.

PhD Thesis Defense

On Friday, September 30, 2022, Nico Reski will defend his PhD thesis in Computer and Information Science (Newton, House C, Växjö, 13:00). The thesis is entitled Supporting Data Interaction and Hybrid Asymmetric Collaboration Using Virtual Reality Within the Context of Immersive Analytics. Dr. Petra Isenberg (University of Paris-Saclay, France) will serve as the opponent. Further information is available in the LNU website announcement.

Daniel Archambault's Presentation at LNU

The ISOVIS group hosted a talk by Assoc. Prof. Dr. Daniel Archambault (Swansea University, UK) titled "A Visual Analytics Response to the COVID-19 Pandemic for a Wide Range of Audiences" at Linnaeus University on May 19, 2022. More information on Daniel's research available at his webpage: https://cs.swansea.ac.uk/~csdarchambault/

Open Position: Research Engineer in Information Visualization!

We have an open position for permanent employment as a Research Engineer in Information Visualization for the InfraVis project (PhD degree required)!
More information about prerequisites, merits, and the application procedure is provided here under the reference number 2022/494-2.2.1. Questions should be addressed via email to Prof. Andreas Kerren.

Deadline: June 8, 2022

Licentiate Thesis Defense

On Thursday, May 19, 2022, Daniel Witschard will defend his PhL thesis in Computer and Information Science (Weber, Hus K, Växjö, 10:00). The thesis is entitled Towards Multiple Embeddings for Multivariate Network Analysis. Assoc. Prof. Dr. Daniel Archambault (Swansea University, UK) will serve as the opponent. Further information is available in the LNU website announcement.

Dagstuhl Seminar 22191 on Visual Text Analytics

Prof. Kerren, Dr. Kucher, and Angelos Chatzimparmpas (as well as some of the ISOVIS group alumni and collaborators) have participated in the Dagstuhl Seminar 22191 on Visual Text Analytics (with Prof. Kerren being one of the organizers). This Dagstuhl Seminar brought together researchers from the visualization, natural language processing (NLP), and machine learning communities, with domain experts from several text-related research areas, to identify the most pressing and promising open problems for collaborative research.

Updates for the TrustMLVis Browser

Angelos Chatzimparmpas has recently added a large number of new entries to TrustMLVis Browser, our visual survey in enhancing trust in Machine Learning (ML) models with visualization. 2021 was an excellent year for XAI with the use of visualization, and we hope to witness even more novel and interesting work in 2022 (with the respective updates for our survey browser in the future)! Find out more and follow the links to the respective publications:

BioVis Explorer Presented at the Research Showcase Seminar at Indiana University

Prof. Kerren and Dr. Kucher have presented the work on "BioVis Explorer: A Visual Guide for Biological Data Visualization Techniques" (conducted in collaboration with Prof. Schreiber and Dr. Li) at the research showcase seminar at the Cyberinfrastructure for Network Science Center, Indiana University today (online).

Survey of Surveys Success in the SAGE Information Visualization Journal

Our article "A Survey of Surveys on the use of Visualization for Interpreting Machine Learning Models" by Angelos Chatzimparmpas et al. is currently among the most read articles in the Information Visualization journal in the last 6 months!

Replicability Stamp for Our Latest TVCG Publication

The study described in our latest TVCG article titled "FeatureEnVi: Visual Analytics for Feature Engineering Using Stepwise Selection and Semi-Automatic Extraction Approaches" by Angelos Chatzimparmpas et al. has been awarded a Replicability Stamp.

Invited Talk at University of Eastern Finland

Dr. Kostiantyn Kucher has given an invited talk titled "A Gentle Introduction to Information Visualization and Visual Analytics: Theory and Tools" as part of the BoMoCult Lecture Series in Data Visualization for the Borders, Mobilities and Cultural Encounters (BoMoCult) research community at University of Eastern Finland (UEF) today.

ISOVIS Group at SweDS21

As previously announced, the members of the ISOVIS group took part in organizing SweDS 2021, the 9th Swedish Workshop on Data Science, which took place online on December 2–3, 2021, with Dr. Rafael M. Martins as one of the general chairs. The program of the workshop included 9 accepted full paper presentations and 11 extended abstract presentations, with several contributions from the ISOVIS group in both tracks. Further information about SweDS21 is available on the workshop website.

InfraVis National Research Infrastructure

We are glad to announce that the Swedish Researh Council (Vetenskapsrådet) has accepted the proposal for a new national infrastructure for visualization and analysis of scientific data, titled InfraVis. Linnaeus University is one of nine Swedish higher education institutions that participate in this infrastructure project. At LNU, InfraVis will be coordinated by Prof. Dr. Andreas Kerren, according to whom, InfraVis will provide all researchers at Linnaeus University access to expertise and a wide range of techniques for analysis and visualization. ISOVIS researchers will contribute to InfraVis with their expertise in information visualization and visual analytics. Further information is available in the LNU press release and on LNU's InfraVis project page.

Article in Computer & Graphics

A great collaboration with colleagues from Brazil and Canada led to a new article Fast and Reliable Incremental Dimensionality Reduction for Streaming Data published in the Computer & Graphics journal that is now available online. In order to help us to access and share our article, Elsevier provides free access to our article which is valid until October 27, 2021:

Best Short Paper Award at VINCI 2021

Our short paper "Visual Analysis of Industrial Multivariate Time Series" by the ISOVIS group members Angelos Chatzimparmpas and Dr. Ilir Jusufi and our student Maath Musleh has received the Best Short Paper Award at VINCI 2021, the 14th International Symposium on Visual Information Communication and Interaction held online during September 6–7, 2021 due to the COVID-19 situation (originally planned to take place in Potsdam, Germany).

ISOVIS Group Members Participating in SweDS21 Organization

The members of the ISOVIS group are taking part in organizing SweDS 2021, the 9th Swedish Workshop on Data Science, which is hosted online by Linnaeus University on December 2–3, 2021. Dr. Rafael M. Martins is one of the general chairs of the workshop, Dr. Kostiantyn Kucher is the technical program chair and proceedings chair, and Dr. Ilir Jusufi is a member of the program committee. The proceedings of the workshop will be published at IEEE Xplore. Further information about SweDS21 is available on the workshop website and the EasyChair Call for Papers page.

ISOVIS Group at EuroVis 2021

Angelos Chatzimparmpas (with Dr. Rafael M. Martins, Dr. Kostiantyn Kucher, and Prof. Andreas Kerren as co-authors) presented an article titled "VisEvol: Visual Analytics to Support Hyperparameter Search through Evolutionary Optimization" at EuroVis 2021 held online during June 14–18, 2021 due to the COVID-19 situation (originally planned to take place in Zurich, Switzerland).

Additionally, Daniel Witschard (with Dr. Ilir Jusufi and Prof. Andreas Kerren as co-authors) presented a poster paper titled "SimBaTex: Similarity-based Text Exploration".

ISOVIS Group at Eurographics 2021

Dr. Kostiantyn Kucher (with Dr. Rafael M. Martins and Prof. Andreas Kerren as co-authors) presented an education paper titled "Project in Visualization and Data Analysis: Experiences in Designing and Coordinating the Course" at Eurographics 2021 held online during May 3–7, 2021 due to the COVID-19 situation (originally planned to take place in Vienna, Austria). This education paper is based on the experiences related to the course 4DV807 Project In Visualization and Data Analysis which has recently been offered for the first time at LNU.

Member of the EuroVis Best PhD Award Committee 2021

Prof. Andreas Kerren will serve as a member of the EuroVis Best PhD Award Committee 2021. More information on rules and selection procedures can be found at Eurographics.

Invited Speaker at the CSCS23 Conference

Prof. Andreas Kerren will give a talk as an invited speaker at the 23rd International Conference on Control Systems and Computer Science (CSCS23) which will be organized as a virtual conference, May 26-28, 2021.

ISOVIS Group at IVAPP 2021

Dr. Kostiantyn Kucher presented a position paper titled "Towards Visual Sociolinguistic Network Analysis" at IVAPP 2021 held online during February 8–10, 2021 due to the COVID-19 situation (originally planned to take place in Vienna, Austria).

Additionally, Daniel Witschard (with Dr. Ilir Jusufi, Dr. Rafael M. Martins, and Prof. Andreas Kerren as co-authors) presented a position paper titled "A Statement Report on the Use of Multiple Embeddings for Visual Analytics of Multivariate Networks" as part of the poster session.

ISOVIS Group at IEEE VIS 2020

Angelos Chatzimparmpas (with Dr. Rafael M. Martins, Dr. Kostiantyn Kucher, and Prof. Andreas Kerren as co-authors) presented an article titled "StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics" at IEEE VIS 2020 held online during October 25–30, 2020 due to the COVID-19 situation (originally planned to take place in Salt Lake City, US). A link to the online talk and further information is provided here.

Additionally, Angelos Chatzimparmpas presented an invited TVCG article entitled "t-viSNE: Interactive Assessment and Interpretation of t-SNE Projections" (with Dr. Rafael M. Martins and Prof. Andreas Kerren as co-authors). A link to the online talk and further information is provided here.

Short paper Co-Chair at EuroVis 2021

Prof. Andreas Kerren will serve as short paper co-chair of the 23rd EG/VGTC Conference on Visualization EuroVis 2021 to be held in Zurich, Switzerland, June 14–18, 2021.

SentimentVis Survey Success at Wiley Online Library in 2019

According to the recent data from Wiley, our survey article The State of the Art in Sentiment Visualization was the most downloaded Computer Graphics Forum publication at Wiley Online Library in 2019!

ISOVIS Group at EuroVis 2020

Angelos Chatzimparmpas (assisted by his co-authors Prof. Fabrice Rossi, Prof. Andreas Kerren, and Dr. Kostiantyn Kucher for the Q&A session) presented a survey article titled "The State of the Art in Enhancing Trust in Machine Learning Models with the Use of Visualizations" at EGEV2020, the joint Eurographics & Eurovis conferences held online during May 25–29, 2020 due to the COVID-19 situation (originally planned to take place in Norrköping, Sweden).

Additionally, several further publications co-authored by our group members were presented. Elio Ventocilla presented a paper titled "Progressive Multidimensional Projections: A Process Model based on Vector Quantization" (with Dr. Rafael M. Martins as one of the co-authors), and Mateus Espadoto presented a TVCG article titled "Towards a Quantitative Survey of Dimension Reduction Techniques" (with Dr. Rafael M. Martins and Prof. Andreas Kerren among other co-authors).

TrustMLVis Browser is Publicly Available Online

TrustMLVis Browser, our visual survey in enhancing trust in Machine Learning (ML) models with visualization, is now publicly available online:

TVCG Publication and Online Access to t-viSNE

Our article on t-viSNE, a tool for interactive assessment and interpretation of t-SNE projections, has been accepted for publication in IEEE TVCG: https://doi.org/10.1109/TVCG.2020.2986996

The tool and its source code are now publicly available online, see the corresponding software page.

Short paper Co-Chair at EuroVis 2020

Prof. Andreas Kerren will serve as short paper co-chair of the 22nd EG/VGTC Conference on Visualization EuroVis 2020 to be held in Norrköping, Sweden, May 25–29, 2020.

Upgraded Website

The website of the ISOVIS group has been upgraded to a new, modern version!

Associate Editor for Computer Graphics Forum

Prof. Andreas Kerren joins the editorial board of the journal Computer Graphics Forum (CGF) for a four-year term of service (2019–2022).

ISOVIS Group at EuroVis 2019 in Porto, Portugal

Dr. Kostiantyn Kucher and Prof. Andreas Kerren presented a poster paper "Text Visualization Revisited: The State of the Field in 2019" at EuroVis 2019 in Portugal, Porto during June 4–7, 2019.

Ross Maciejewski's Presentation at LNU

The ISOVIS group hosted a talk by Assoc. Prof. Ross Maciejewski (Arizona State University) titled "Choropleth Map Classification and Design Under Uncertainty" at Linnaeus University on April 16, 2019. More information on Ross's research available at the webpage of the VADER Lab at ASU: http://vader.lab.asu.edu/

Visiting Professor in Paris

Prof. Andreas Kerren will spend one week as a visiting professor at Paris 1 Panthéon-Sorbonne University, France, during May 12–18, 2019. He received an invitation through the Visiting Professors Programme of this university and will be hosted by Prof. Fabrice Rossi, a well-known expert in exploratory data analysis, data mining and machine learning.

PhD Thesis Defense

On Monday, April 15, 2019, Kostiantyn Kucher will defend his PhD thesis in Computer and Information Science (Wicksell, Hus K, Växjö, 09:15). The thesis is entitled Sentiment and Stance Visualization of Textual Data for Social Media. A popular science-style press release is available at the LNU website.

PhD Thesis Defense

On Thursday, January 31, 2019, Björn Zimmer will defend his PhD thesis in Computer and Information Science (D1136, Hus D, Växjö, 09:30). The thesis is entitled Guided Interaction and Collaborative Exploration in Heterogeneous Network Visualizations.

ISOVIS Group at VINCI 2018 in Växjö, Sweden

ISOVIS Group has hosted The 11th International Symposium on Visual Information Communication and Interaction (VINCI 2018) at Linnaeus University in Växjö during August 13–15, 2018 with Prof. Andreas Kerren as the general chair, Rafael M. Martins as the local chair, Kostiantyn Kucher as the proceedings chair, and Angelos Chatzimparmpas as a student volunteer. Kostiantyn Kucher has presented a short paper "Analysis of VINCI 2009–2017 Proceedings". Additionally, Kostiantyn Kucher and Maria Skeppstedt have presented a poster paper "Application of Interactive Computer-Assisted Argument Extraction to Opinionated Social Media Texts", Björn Zimmer has presented a poster paper "Towards Uncertainty Visualization in Smart Production Environments", and Ilir Jusufi has participated as a co-author of a poster paper "Diabetes Information in Social Media".

Special Issue on Natural Language Processing for Social Media Analysis

Prof. Andreas Kerren is co-editing a special issue on Natural Language Processing for Social Media Analysis of the International Journal on Artificial Intelligence Tools (IJAIT). Paper submission deadline is at February 15, 2019.

Best Poster Award at EuroVis 2018

Our poster paper "Visual Analysis of Sentiment and Stance in Social Media Texts" has received the Best Poster Award at EuroVis 2018 in Brno, Czech Republic during June 4–8, 2018.

ACM TiiS Blog Article on Medium

A blog article with a popular scientific summary of our 2017 article on ALVA has been published in the ACM TiiS blog on Medium.

ISOVIS Group at EuroVis 2018 in Brno, Czech Republic

Ilir Jusufi will present a short paper "TapVis: A Data Visualization Approach for Assessment of Alternating Tapping Performance in Patients with Parkinson's Disease", and Kostiantyn Kucher will present a poster paper "Visual Analysis of Sentiment and Stance in Social Media Texts" at EuroVis 2018 in Brno, Czech Republic during June 4–8, 2018.

Workshop Paper at VisLR III

On May 12, 2018, Maria Skeppstedt presented our paper Topics2Themes: Computer-Assisted Argument Extraction by Visual Analysis of Important Topics at VisLR III, the 3rd Workshop on Visualization as Added Value in the Development, Use and Evaluation of Language Resources held at LREC 2018 in Miyazaki, Japan.

Invited Speaker at Trivago

Prof. Andreas Kerren will give a talk on Visualization of Multidimensional Data: Possibilities, Pitfalls, and Practices as an invited speaker at Trivago, Düsseldorf, Germany, on Wednesday, April 11, 2018.

Popular Scientific Summary of StaViCTA

A popular scientific summary of the StaViCTA project has now been published.

Invited Article Presentation at ACM IUI 2018

Kostiantyn Kucher will present our article Active Learning and Visual Analytics for Stance Classification with ALVA published in ACM TiiS at the ACM IUI 2018 conference in Tokyo, Japan, March 7–11, 2018.

Short Paper at IVAPP 2018

Our short paper DoSVis: Document Stance Visualization has been accepted for IVAPP 2018 in Funchal, Madeira, Portugal. Kostiantyn Kucher will present it during the text and document visualization session on January 29, 2018.

Open PhD Position in Visual Analytics!

We have one open PhD position to be filled in the area of Visual Analytics!
More information about prerequisites, merits and the application procedure is provided here under the reference number 2017/2251-2.2.1. Questions should be addressed via email to Prof. Andreas Kerren.

Deadline: November 1, 2017

Graph Drawing 2018

Prof. Andreas Kerren will serve as program co-chair of the 26th International Symposium on Graph Drawing & Network Visualization GD 2018 to be held in Barcelona, Spain, September 26–28, 2018.

VINCI 2018 Conference in Växjö, Sweden

Prof. Andreas Kerren will serve as general chair of the 11th International Symposium on Visual Information Communication and Interaction VINCI which will be held in Växjö, Sweden, at August 13–15, 2018. Dr. Rafael M. Martins will contribute as local organization chair.

Invited Speaker at the BOTI 2017 Conference

Prof. Andreas Kerren will give a talk as an invited speaker at the annual BOTI 2017 Conference of the Swedish Industrial Organization for Technical Communication which will take place in Stockholm, Sweden, November 15-16, 2017.

CGF Article

Recently, our survey article The State of the Art in Sentiment Visualization has been accepted for publication in the Computer Graphics Forum (CGF) and is already available online. The survey comes with an accompanying interactive visual survey tool, called SentimentVis Browser, accessible by following the link:

In addition to this great news, we received an invitation for presenting this survey article at EuroVis '17 to be held in Barcelona, June 12–16, 2017, within the STARs session ST2.

ISOVIS Group at EuroVis 2017 in Barcelona, Spain

The most members of the ISOVIS group will attend the EuroVis '17 conference in Barcelona, Spain. There, we will present one full paper (talk is given by our collaborators from the University of Groningen), one STAR report (our invited CGF survey article), one short paper, and one poster. Thus, we have accepted work in all submission categories offered by the conference!

IEEE VISSOFT 2018 Conference

Prof. Andreas Kerren will serve as program co-chair of the 6th IEEE Working Conference on Software Visualization VISSOFT 2018 to be held in Madrid, Spain, September 2018.

Invited Speaker at the SeRC - Visualization Summer School 2017

Dr. Rafael Messias Martins will give an invited lecture on Information Visualization at the SeRC - Visualization Summer School 2017 which will take place on August 14–16, 2017 in Norrköping, Sweden.

Our Visual Guide to BioVis Techniques is Online!

We have developed an interactive, visual guide to biovisualization techniques, called BioVis Explorer:

Open PhD Position in Visual Analytics!

We have one open PhD position to be filled in the area of Visual Analytics!
More information about prerequisites, merits and the application procedure is provided here under the reference number 2017/2251-2.2.1. Questions should be addressed via email to Prof. Andreas Kerren.

Deadline: June 1, 2017

Invited Speaker at EMNLP 2017 Workshop on New Frontiers in Summarization

Prof. Andreas Kerren will give a talk as an invited speaker at the EMNLP 2017 Workshop on New Frontiers in Summarization, Copenhagen, Denmark, September 7, 2017.

Special Session at SPECOM 2017

We are co-organizing a special session on Natural Language Processing for Social Media Analysis at the 19th International Conference on Speech and Computer (SPECOM '17), held on 12–16 September in Hatfield, Hertfordshire, UK, 2017.

Honorable Mention Award

Our article MobilityGraphs: Visual Analysis of Mass Mobility Dynamics via Spatio-Temporal Graphs and Clustering received a Honorable Mention Award for its "Impact on Business" at the 18. Darmstädter Computer Graphik Abend, Fraunhofer IGD, Germany, 2016.

New E-commerce Collaboration with Divvit

The ISOVIS group has recently started a collaboration with Divvit AB to improve visual analysis methods for e-commerce data. A press release has be published now at MyNewsDesk.

Open PostDoc Position in InfoVis and/or Visual Analytics!

We have one open PostDoc position to be filled in the areas of Information Visualization or Visual Analytics!
More information about prerequisites, merits and the application procedure is provided here under the reference number 2016/727-2.2.1. Questions should be addressed via email to Prof. Andreas Kerren.

Deadline: March 31, 2016

VINCI 2016 Conference

Prof. Andreas Kerren serves as program chair of the 9th International Symposium on Visual Information Communication and Interaction VINCI 2016 which will be held on 24–26 September 2016 in Dallas, TX, USA.

JVLC Article

The final version of our article A Survey of Technologies on the Rise for Emotion-Enhanced Interaction published in the Journal of Visual Languages and Computing (JVLC) with full bibliographic details is now available online. In order to help us to access and share our article, Elsevier provides free access to our article, which is valid for 50 days, until January 16, 2016:

EmoVis 2016 Workshop

We will organize a Workshop on Emotion and Visualization (EmoVis 2016) at March 10, 2016. The workshop is co-located with the ACM IUI 2016 conference that will take place in Sonoma, CA, USA. EmoVis 2016 is also on Twitter.

PhD Thesis Defense

On Thursday, January 22, 2015, Daniel Cernea will defend his PhD thesis in Computer Science at the Technical University of Kaiserslautern, Germany. The thesis is entitled User-Centered Collaboration in Visualization.