Marc Streit

98 papers A* 3B 3C 3Misc 2Journal 71Unranked 13
YearRankTypeTitle / Venue / Authors
2026 A* conf
"Hey Dashboard!": Supporting Voice, Text, and Pointing Modalities in Dashboard Onboarding using Large Language Models.
CHI
Vaishali Dhanoa, Gabriela Molina León, Eve E. Hoggan, Eduard Gröller, Marc Streit, Niklas Elmqvist
2026 A* conf
Framing 'Collaboration': How Human-Human Principles Translate into Human-AI Realities.
CHI
Karin Breckner, Thomas Neumayr, Marc Streit, Martina Mara, Mirjam Augstein
2026 J jnl
SHACLens: a visualization workflow for SHACL violation exploration in knowledge graphs.
Frontiers Bioinform.
Christian Alexander Steinparz, Andreas P. Hinterreiter, Labinot Bajraktari, Vitaly Sedlyarov, Markus J. Bauer, Thomas Zichner, Marc Streit
2026 J jnl
molIEreVIS: exploring and interpreting the evidence behind drug repurposing predictions.
Frontiers Bioinform.
Amal Alnouri, Andreas P. Hinterreiter, Christian Alexander Steinparz, Labinot Bajraktari, Sebastian Burgstaller-Muehlbacher, Markus Bauer, Gregorio Alanis-Lobato, Marc Streit
2025 J jnl
D-Tour: Semi-Automatic Generation of Interactive Guided Tours for Visualization Dashboard Onboarding.
IEEE Trans. Vis. Comput. Graph.
Vaishali Dhanoa, Andreas P. Hinterreiter, Vanessa Fediuk, Niklas Elmqvist, Eduard Gröller, Marc Streit
2025 J jnl
Hey Dashboard!: Supporting Voice, Text, and Pointing Modalities in Dashboard Onboarding.
CoRR
Vaishali Dhanoa, Gabriela Molina León, Eve E. Hoggan, Eduard Gröller, Marc Streit, Niklas Elmqvist
2025 J jnl
Iguanodon: A Code-Breaking Game for Improving Visualization Construction Literacy.
IEEE Trans. Vis. Comput. Graph.
Patrick Adelberger, Oleg Lesota, Klaus Eckelt, Markus Schedl, Marc Streit
2025 J jnl
Loops: Leveraging Provenance and Visualization to Support Exploratory Data Analysis in Notebooks.
IEEE Trans. Vis. Comput. Graph.
Klaus Eckelt, Kiran Gadhave, Alexander Lex, Marc Streit
2025 J jnl
The Changing Nature of Human-AI Relations: A Scoping Review on Terminology and Evolvement in the Scientific Literature.
Int. J. Hum. Comput. Interact.
Karin Breckner, Thomas Neumayr, Martina Mara, Marc Streit, Mirjam Augstein
2024 J jnl
CIME4R: Exploring iterative, AI-guided chemical reaction optimization campaigns in their parameter space.
J. Cheminformatics
Christina Humer, Rachel Nicholls, Henry Heberle, Moritz Heckmann, Michael Pühringer, Thomas Wolf, Maximilian Lübbesmeyer, Julian Heinrich, Julius Hillenbrand, Giulio Volpin, Marc Streit
2024 J jnl
Explainable Artificial Intelligence Improves Human Decision-Making: Results from a Mushroom Picking Experiment at a Public Art Festival.
Int. J. Hum. Comput. Interact.
Benedikt Leichtmann, Andreas P. Hinterreiter, Christina Humer, Marc Streit, Martina Mara
2024 J jnl
Marjorie: Visualizing Type 1 Diabetes Data to Support Pattern Exploration.
IEEE Trans. Vis. Comput. Graph.
Anna Scimone, Klaus Eckelt, Marc Streit, Andreas P. Hinterreiter
2024 — conf
Personalized Complementarity in Human-AI Collaboration.
MuC (Workshopband)
Karin Breckner, Thomas Neumayr, Marc Streit, Mirjam Augstein
2024 J jnl
Reassuring, Misleading, Debunking: Comparing Effects of XAI Methods on Human Decisions.
ACM Trans. Interact. Intell. Syst.
Christina Humer, Andreas P. Hinterreiter, Benedikt Leichtmann, Martina Mara, Marc Streit
2024 J jnl
Transitioning to a Commercial Dashboarding System: Socio-Technical Observations and Opportunities.
IEEE Trans. Vis. Comput. Graph.
Conny Walchshofer, Vaishali Dhanoa, Marc Streit, Miriah Meyer
2024 J jnl
VisAhoi: Towards a library to generate and integrate visualization onboarding using high-level visualization grammars.
Vis. Informatics
Christina Stoiber, Daniela Moitzi, Holger Stitz, Florian Grassinger, Anto Silviya Geo Prakash, Dominic Girardi, Marc Streit, Wolfgang Aigner
2023 J jnl
Effects of Explainable Artificial Intelligence on trust and human behavior in a high-risk decision task.
Comput. Hum. Behav.
Benedikt Leichtmann, Christina Humer, Andreas P. Hinterreiter, Marc Streit, Martina Mara
2023 — conf
Explainable Long and Short-Term Pattern Detection in Projected Sequential Data.
PKDD/ECML Workshops (3)
Matthias Bittner, Andreas P. Hinterreiter, Klaus Eckelt, Marc Streit
2023 J jnl
Fuzzy Spreadsheet: Understanding and Exploring Uncertainties in Tabular Calculations.
IEEE Trans. Vis. Comput. Graph.
Vaishali Dhanoa, Conny Walchshofer, Andreas P. Hinterreiter, Eduard Gröller, Marc Streit
2023 J jnl
Human-Centered Approaches for Provenance in Automated Data Science (Dagstuhl Seminar 23372).
Dagstuhl Reports
Anamaria Crisan, Lars Kotthoff, Marc Streit, Kai Xu
2023 J jnl
ParaDime: A Framework for Parametric Dimensionality Reduction.
Comput. Graph. Forum
Andreas P. Hinterreiter, Christina Humer, Bernhard Kainz, Marc Streit
2023 J jnl
Provectories: Embedding-Based Analysis of Interaction Provenance Data.
IEEE Trans. Vis. Comput. Graph.
Conny Walchshofer, Andreas P. Hinterreiter, Kai Xu, Holger Stitz, Marc Streit
2023 J jnl
VisAhoi: Towards a Library to Generate and Integrate Visualization Onboarding Using High-level Visualization Grammars.
CoRR
Christina Stoiber, Daniela Moitzi, Holger Stitz, Florian Grassinger, Anto Silviya Geo Prakash, Dominic Girardi, Marc Streit, Wolfgang Aigner
2023 J jnl
Visual Exploration of Relationships and Structure in Low-Dimensional Embeddings.
IEEE Trans. Vis. Comput. Graph.
Klaus Eckelt, Andreas P. Hinterreiter, Patrick Adelberger, Conny Walchshofer, Vaishali Dhanoa, Christina Humer, Moritz Heckmann, Christian Alexander Steinparz, Marc Streit
2023 — conf
Visualizing Pairwise Feature Interactions in Neural Additive Models.
EuroVis (Posters)
Christian Alexander Steinparz, Andreas P. Hinterreiter, Marc Streit
2023 Misc conf
Visualizing and monitoring the process of injection molding.
Visualization and Data Analysis
Christian Alexander Steinparz, Thomas Mitterlehner, Bernhard Praher, Klaus Straka, Holger Stitz, Marc Streit
2022 J jnl
A Process Model for Dashboard Onboarding.
Comput. Graph. Forum
Vaishali Dhanoa, Conny Walchshofer, Andreas P. Hinterreiter, Holger Stitz, M. Eduard Gröller, Marc Streit
2022 J jnl
ChemInformatics Model Explorer (CIME): exploratory analysis of chemical model explanations.
J. Cheminformatics
Christina Humer, Henry Heberle, Floriane Montanari, Thomas Wolf, Florian Huber, Ryan Henderson, Julian Heinrich, Marc Streit
2022 J jnl
Comparative Evaluations of Visualization Onboarding Methods.
CoRR
Christina Stoiber, Conny Walchshofer, Margit Pohl, Benjamin Potzmann, Florian Grassinger, Holger Stitz, Marc Streit, Wolfgang Aigner
2022 J jnl
Comparative evaluations of visualization onboarding methods.
Vis. Informatics
Christina Stoiber, Conny Walchshofer, Margit Pohl, Benjamin Potzmann, Florian Grassinger, Holger Stitz, Marc Streit, Wolfgang Aigner
2022 J jnl
ConfusionFlow: A Model-Agnostic Visualization for Temporal Analysis of Classifier Confusion.
IEEE Trans. Vis. Comput. Graph.
Andreas P. Hinterreiter, Peter Ruch, Holger Stitz, Martin Ennemoser, Jürgen Bernard, Hendrik Strobelt, Marc Streit
2022 — conf
Interactive Attribution-based Explanations for Image Segmentation.
EuroVis (Posters)
Christina Humer, Mohamed Elharty, Andreas P. Hinterreiter, Marc Streit
2022 J jnl
ParaDime: A Framework for Parametric Dimensionality Reduction.
CoRR
Andreas P. Hinterreiter, Christina Humer, Bernhard Kainz, Marc Streit
2022 J jnl
Perspectives of Visualization Onboarding and Guidance in VA.
CoRR
Christina Stoiber, Davide Ceneda, Markus Wagner, Victor Schetinger, Theresia Gschwandtner, Marc Streit, Silvia Miksch, Wolfgang Aigner
2022 J jnl
Perspectives of visualization onboarding and guidance in VA.
Vis. Informatics
Christina Stoiber, Davide Ceneda, Markus Wagner, Victor Schetinger, Theresia Gschwandtner, Marc Streit, Silvia Miksch, Wolfgang Aigner
2022 — ch.
Visual Data Science for Industrial Applications.
Digital Transformation
Tobias Schreck, Belgin Mutlu, Marc Streit
2022 J jnl
Visualization Onboarding Grounded in Educational Theories.
CoRR
Christina Stoiber, Markus Wagner, Florian Grassinger, Margit Pohl, Holger Stitz, Marc Streit, Benjamin Potzmann, Wolfgang Aigner
2021 J jnl
Coral: a web-based visual analysis tool for creating and characterizing cohorts.
Bioinform.
Patrick Adelberger, Klaus Eckelt, Markus J. Bauer, Marc Streit, Christian Haslinger, Thomas Zichner
2021 C conf
Design and Comparative Evaluation of Visualization Onboarding Methods.
VINCI
Christina Stoiber, Conny Walchshofer, Florian Grassinger, Holger Stitz, Marc Streit, Wolfgang Aigner
2021 — conf
Operationalizing Human-Centered Perspectives in Explainable AI.
CHI Extended Abstracts
Upol Ehsan, Philipp Wintersberger, Q. Vera Liao, Martina Mara, Marc Streit, Sandra Wachter, Andreas Riener, Mark O. Riedl
2021 J jnl
Projection Path Explorer: Exploring Visual Patterns in Projected Decision-making Paths.
ACM Trans. Interact. Intell. Syst.
Andreas P. Hinterreiter, Christian Alexander Steinparz, Moritz Schöfl, Holger Stitz, Marc Streit
2020 J jnl
A visual approach to explainable computerized clinical decision support.
Comput. Graph.
Juliane Müller, Matthaeus Stoehr, Alexander Oeser, Jan Gaebel, Marc Streit, Andreas Dietz, Steffen Oeltze-Jafra
2020 — ch.
Case Studies for Working with Domain Experts.
Foundations of Data Visualization
Johanna Beyer, Charles D. Hansen, Mario Hlawitschka, Ingrid Hotz, Barbora Kozlíková, Gerik Scheuermann, Markus Stommel, Marc Streit, Johannes Waschke, Thomas Wischgoll, Yong Wan
2020 — ch.
Collaborating Successfully with Domain Experts.
Foundations of Data Visualization
Mario Hlawitschka, Gerik Scheuermann, Christian Blecha, Marc Streit, Amitabh Varshney
2020 J jnl
Exploring Visual Patterns in Projected Human and Machine Decision-Making Paths.
CoRR
Andreas P. Hinterreiter, Christian Alexander Steinparz, Moritz Schöfl, Holger Stitz, Marc Streit
2020 J jnl
Guide Me in Analysis: A Framework for Guidance Designers.
Comput. Graph. Forum
Davide Ceneda, Natalia V. Andrienko, Gennady L. Andrienko, Theresia Gschwandtner, Silvia Miksch, Nikolaus Piccolotto, Tobias Schreck, Marc Streit, Josef Suschnigg, Christian Tominski
2020 — conf
InstanceFlow: Visualizing the Evolution of Classifier Confusion at the Instance Level.
IEEE VIS (Short Papers)
Michael Pühringer, Andreas P. Hinterreiter, Marc Streit
2020 J jnl
InstanceFlow: Visualizing the Evolution of Classifier Confusion on the Instance Level.
CoRR
Michael Pühringer, Andreas P. Hinterreiter, Marc Streit
2020 — conf
Projective Latent Interventions for Understanding and Fine-Tuning Classifiers.
iMIMIC/MIL3ID/LABELS@MICCAI
Andreas P. Hinterreiter, Marc Streit, Bernhard Kainz
2020 J jnl
Projective Latent Space Decluttering.
CoRR
Andreas P. Hinterreiter, Marc Streit, Bernhard Kainz
2020 J jnl
Survey on the Analysis of User Interactions and Visualization Provenance.
Comput. Graph. Forum
Kai Xu, Alvitta Ottley, Conny Walchshofer, Marc Streit, Remco Chang, John E. Wenskovitch
2020 J jnl
Taggle: Combining overview and details in tabular data visualizations.
Inf. Vis.
Katarína Furmanová, Samuel Gratzl, Holger Stitz, Thomas Zichner, Miroslava Jaresová, Alexander Lex, Marc Streit
2019 J jnl
ConfusionFlow: A model-agnostic visualization for temporal analysis of classifier confusion.
CoRR
Andreas P. Hinterreiter, Peter Ruch, Holger Stitz, Martin Ennemoser, Jürgen Bernard, Hendrik Strobelt, Marc Streit
2019 J jnl
Juniper: A Tree+Table Approach to Multivariate Graph Visualization.
IEEE Trans. Vis. Comput. Graph.
Carolina Nobre, Marc Streit, Alexander Lex
2019 J jnl
KnowledgePearls: Provenance-Based Visualization Retrieval.
IEEE Trans. Vis. Comput. Graph.
Holger Stitz, Samuel Gratzl, Harald Piringer, Thomas Zichner, Marc Streit
2019 J jnl
Ordino: a visual cancer analysis tool for ranking and exploring genes, cell lines and tissue samples.
Bioinform.
Marc Streit, Samuel Gratzl, Holger Stitz, Andreas Wernitznig, Thomas Zichner, Christian Haslinger
2019 J jnl
The State of the Art in Visualizing Multivariate Networks.
Comput. Graph. Forum
Carolina Nobre, Miriah D. Meyer, Marc Streit, Alexander Lex
2019 — conf
TourDino: A Support View for Confirming Patterns in Tabular Data.
EuroVA@EuroVis
Klaus Eckelt, Patrick Adelberger, Thomas Zichner, Andreas Wernitznig, Marc Streit
2019 — conf
Visualization of Rubik's Cube Solution Algorithms.
EuroVA@EuroVis
Christian Alexander Steinparz, Andreas P. Hinterreiter, Holger Stitz, Marc Streit
2018 — conf
Data Analytics for Industrial Process Improvement A Vision Paper.
CBI (2)
Stefan Thalmann, Juergen Mangler, Tobias Schreck, Christian Huemer, Marc Streit, Florian Pauker, Georg Weichhart, Stefan Schulte, Christian Kittl, Christoph Pollak, Matej Vukovic, Gerti Kappel, Milot Gashi, Stefanie Rinderle-Ma, Josef Suschnigg, Nikolina Jekic, Stefanie N. Lindstaedt
2018 — conf
Guidance or No Guidance? A Decision Tree Can Help.
EuroVA@EuroVis
Davide Ceneda, Theresia Gschwandtner, Thorsten May, Silvia Miksch, Marc Streit, Christian Tominski
2018 J jnl
Juniper: A Tree+Table Approach to Multivariate Graph Visualization.
CoRR
Carolina Nobre, Marc Streit, Alexander Lex
2018 J jnl
TACO: Visualizing Changes in Tables Over Time.
IEEE Trans. Vis. Comput. Graph.
Christina Niederer, Holger Stitz, Reem Hourieh, Florian Grassinger, Wolfgang Aigner, Marc Streit
2017 J jnl
Amending the Characterization of Guidance in Visual Analytics.
CoRR
Davide Ceneda, Theresia Gschwandtner, Thorsten May, Silvia Miksch, Hans-Jörg Schulz, Marc Streit, Christian Tominski
2017 J jnl
Characterizing Guidance in Visual Analytics.
IEEE Trans. Vis. Comput. Graph.
Davide Ceneda, Theresia Gschwandtner, Thorsten May, Silvia Miksch, Hans-Jörg Schulz, Marc Streit, Christian Tominski
2017 J jnl
Taggle: Scalable Visualization of Tabular Data through Aggregation.
CoRR
Katarína Furmanová, Samuel Gratzl, Holger Stitz, Thomas Zichner, Miroslava Jaresová, Martin Ennemoser, Alexander Lex, Marc Streit
2017 J jnl
WeightLifter: Visual Weight Space Exploration for Multi-Criteria Decision Making.
IEEE Trans. Vis. Comput. Graph.
Stephan Pajer, Marc Streit, Thomas Torsney-Weir, Florian Spechtenhauser, Torsten Möller, Harald Piringer
2016 J jnl
AVOCADO: Visualization of Workflow-Derived Data Provenance for Reproducible Biomedical Research.
Comput. Graph. Forum
Holger Stitz, S. Luger, Marc Streit, Nils Gehlenborg
2016 J jnl
From Visual Exploration to Storytelling and Back Again.
Comput. Graph. Forum
Samuel Gratzl, Alexander Lex, Nils Gehlenborg, Nicola Cosgrove, Marc Streit
2016 J jnl
Pathfinder: Visual Analysis of Paths in Graphs.
Comput. Graph. Forum
Christian Partl, Samuel Gratzl, Marc Streit, Anne Mai Wassermann, Hanspeter Pfister, Dieter Schmalstieg, Alexander Lex
2016 — conf
TaCo: Comparative Visualization of Large Tabular Data.
EuroVis (Posters)
Reem Hourieh, Holger Stitz, Nils Gehlenborg, Marc Streit
2016 J jnl
ThermalPlot: Visualizing Multi-Attribute Time-Series Data Using a Thermal Metaphor.
IEEE Trans. Vis. Comput. Graph.
Holger Stitz, Samuel Gratzl, Wolfgang Aigner, Marc Streit
2015 B conf
CloudGazer: A divide-and-conquer approach to monitoring and optimizing cloud-based networks.
PacificVis
Holger Stitz, Samuel Gratzl, Michael T. Krieger, Marc Streit
2015 J jnl
Highlights from the 5th Symposium on Biological Data Visualization: Part 1.
BMC Bioinform.
Jan Aerts, G. Elisabeta Marai, Kay Nieselt, Cydney B. Nielsen, Marc Streit, Daniel Weiskopf
2014 J jnl
Characterizing Cancer Subtypes Using Dual Analysis in Caleydo StratomeX.
IEEE Computer Graphics and Applications
Cagatay Turkay, Alexander Lex, Marc Streit, Hanspeter Pfister, Helwig Hauser
2014 J jnl
ConTour: Data-Driven Exploration of Multi-Relational Datasets for Drug Discovery.
IEEE Trans. Vis. Comput. Graph.
Christian Partl, Alexander Lex, Marc Streit, Hendrik Strobelt, Anne Mai Wassermann, Hanspeter Pfister, Dieter Schmalstieg
2014 J jnl
Domino: Extracting, Comparing, and Manipulating Subsets Across Multiple Tabular Datasets.
IEEE Trans. Vis. Comput. Graph.
Samuel Gratzl, Nils Gehlenborg, Alexander Lex, Hanspeter Pfister, Marc Streit
2014 J jnl
Furby: fuzzy force-directed bicluster visualization.
BMC Bioinform.
Marc Streit, Samuel Gratzl, Michael Gillhofer, Andreas Mayr, Andreas Mitterecker, Sepp Hochreiter
2014 J jnl
Opening the Black Box: Strategies for Increased User Involvement in Existing Algorithm Implementations.
IEEE Trans. Vis. Comput. Graph.
Thomas Mühlbacher, Harald Piringer, Samuel Gratzl, Michael Sedlmair, Marc Streit
2014 A* conf
Show me the invisible: visualizing hidden content.
CHI
Thomas Geymayer, Markus Steinberger, Alexander Lex, Marc Streit, Dieter Schmalstieg
2013 J jnl
Entourage: Visualizing Relationships between Biological Pathways using Contextual Subsets.
IEEE Trans. Vis. Comput. Graph.
Alexander Lex, Christian Partl, Denis Kalkofen, Marc Streit, Samuel Gratzl, Anne Mai Wassermann, Dieter Schmalstieg, Hanspeter Pfister
2013 J jnl
LineUp: Visual Analysis of Multi-Attribute Rankings.
IEEE Trans. Vis. Comput. Graph.
Samuel Gratzl, Alexander Lex, Nils Gehlenborg, Hanspeter Pfister, Marc Streit
2013 J jnl
Visual Analytics: Seeking the Unknown.
Computer
Marc Streit, Oliver Bimber
2013 J jnl
enRoute: dynamic path extraction from biological pathway maps for exploring heterogeneous experimental datasets.
BMC Bioinform.
Christian Partl, Alexander Lex, Marc Streit, Denis Kalkofen, Karl Kashofer, Dieter Schmalstieg
2012 J jnl
Model-Driven Design for the Visual Analysis of Heterogeneous Data.
IEEE Trans. Vis. Comput. Graph.
Marc Streit, Hans-Jörg Schulz, Alexander Lex, Dieter Schmalstieg, Heidrun Schumann
2012 J jnl
Procedural Texture Synthesis for Zoom-Independent Visualization of Multivariate Data.
Comput. Graph. Forum
Rostislav Khlebnikov, Bernhard Kainz, Markus Steinberger, Marc Streit, Dieter Schmalstieg
2012 J jnl
StratomeX: Visual Analysis of Large-Scale Heterogeneous Genomics Data for Cancer Subtype Characterization.
Comput. Graph. Forum
Alexander Lex, Marc Streit, Hans-Jörg Schulz, Christian Partl, Dieter Schmalstieg, Peter J. Park, Nils Gehlenborg
2012 Misc conf
Visualizing uncertainty in biological expression data.
Visualization and Data Analysis
Clemens Holzhüter, Alexander Lex, Dieter Schmalstieg, Hans-Jörg Schulz, Heidrun Schumann, Marc Streit
2012 — conf
enRoute: Dynamic path extraction from biological pathway maps for in-depth experimental data analysis.
BioVis
Christian Partl, Denis Kalkofen, Alexander Lex, Karl Kashofer, Marc Streit, Dieter Schmalstieg
2011 J jnl
Context-Preserving Visual Links.
IEEE Trans. Vis. Comput. Graph.
Markus Steinberger, Manuela Waldner, Marc Streit, Alexander Lex, Dieter Schmalstieg
2011 J jnl
VisBricks: Multiform Visualization of Large, Inhomogeneous Data.
IEEE Trans. Vis. Comput. Graph.
Alexander Lex, Hans-Jörg Schulz, Marc Streit, Christian Partl, Dieter Schmalstieg
2011 C conf
Visualizing the Effects of Logically Combined Filters.
IV
Thomas Geymayer, Alexander Lex, Marc Streit, Dieter Schmalstieg
2010 B conf
Caleydo: Design and evaluation of a visual analysis framework for gene expression data in its biological context.
PacificVis
Alexander Lex, Marc Streit, Ernst Kruijff, Dieter Schmalstieg
2010 J jnl
Comparative Analysis of Multidimensional, Quantitative Data.
IEEE Trans. Vis. Comput. Graph.
Alexander Lex, Marc Streit, Christian Partl, Karl Kashofer, Dieter Schmalstieg
2010 B conf
Visual links across applications.
Graphics Interface
Manuela Waldner, Werner Puff, Alexander Lex, Marc Streit, Dieter Schmalstieg
2009 J jnl
Caleydo: connecting pathways and gene expression.
Bioinform.
Marc Streit, Alexander Lex, Michael Kalkusch, Kurt Zatloukal, Dieter Schmalstieg
2009 C conf
Connecting Genes with Diseases.
IV
Heimo Müller, Robert Reihs, Stefan Sauer, Kurt Zatloukal, Marc Streit, Alexander Lex, Bernhard Schlegl, Dieter Schmalstieg
2008 J jnl
Navigation and Exploration of Interconnected Pathways.
Comput. Graph. Forum
Marc Streit, Michael Kalkusch, Karl Kashofer, Dieter Schmalstieg