18 citations · 65 across the 18 of their papers we have counts for
20 papers
Evaluating and Improving Weak Scalability Analysis of Visualization Algorithms
Marvin Petersen, Jonas Lukasczyk, Christoph Garth
Research on visualizing large-scale datasets traditionally relies on empirical evaluation of scalability, determining the effectiveness of specific computation methods, algorithmic…
Accelerating Computation of Stable Merge Tree Edit Distances using Parameterized Heuristics
Florian Wetzels, Heike Leitte, Christoph Garth
In this paper, we present a novel heuristic algorithm for the stable but NP-complete deformation-based edit distance on merge trees. Our key contribution is the introduction of a u…
DaVE -- A Curated Database of Visualization Examples
Jens Koenen, Marvin Petersen, Christoph Garth +1
Visualization, from simple line plots to complex high-dimensional visual analysis systems, has established itself throughout numerous domains to explore, analyze, and evaluate data…
TTK is Getting MPI-Ready
Eve Le Guillou, Michael Will, Pierre Guillou +4
This system paper documents the technical foundations for the extension of the Topology ToolKit (TTK) to distributed-memory parallelism with the Message Passing Interface (MPI). Wh…
Probabilistic Gradient-Based Extrema Tracking
Emma Nilsson, Jonas Lukasczyk, Talha Bin Masood +2
Feature tracking is a common task in visualization applications, where methods based on topological data analysis (TDA) have successfully been applied in the past for feature defin…
Taming Horizontal Instability in Merge Trees: On the Computation of a Comprehensive Deformation-based Edit Distance
Florian Wetzels, Markus Anders, Christoph Garth
Comparative analysis of scalar fields in scientific visualization often involves distance functions on topological abstractions. This paper focuses on the merge tree abstraction (r…
Parallel Computation of Piecewise Linear Morse-Smale Segmentations
Robin G. C. Maack, Jonas Lukasczyk, Julien Tierny +3
This paper presents a well-scaling parallel algorithm for the computation of Morse-Smale (MS) segmentations, including the region separators and region boundaries. The segmentation…
A Deformation-based Edit Distance for Merge Trees
Florian Wetzels, Christoph Garth
In scientific visualization, scalar fields are often compared through edit distances between their merge trees. Typical tasks include ensemble analysis, feature tracking and symmet…
Branch Decomposition-Independent Edit Distances for Merge Trees
Florian Wetzels, Heike Leitte, Christoph Garth
Edit distances between merge trees of scalar fields have many applications in scientific visualization, such as ensemble analysis, feature tracking or symmetry detection. In this p…
Exploration of Differentiability in a Proton Computed Tomography Simulation Framework
Max Aehle, Johan Alme, Gergely Gábor Barnaföldi +47
Objective. Algorithmic differentiation (AD) can be a useful technique to numerically optimize design and algorithmic parameters by, and quantify uncertainties in, computer simulati…
PREVIS -- A Combined Machine Learning and Visual Interpolation Approach for Interactive Reverse Engineering in Assembly Quality Control
Patrick Ruediger, Felix Claus, Viktor Leonhardt +3
We present PREVIS, a visual analytics tool, enhancing machine learning performance analysis in engineering applications. The presented toolchain allows for a direct comparison of r…
A Guide to Particle Advection Performance
Abhishek Yenpure, Sudhanshu Sane, Roba Binyahib +3
The performance of particle advection-based flow visualization techniques is complex, since computational work can vary based on many factors, including number of particles, durati…
Time-Varying Fuzzy Contour Trees
Anna-Pia Lohfink, Frederike Gartzky, Florian Wetzels +2
We present a holistic, topology-based visualization technique for spatial time series data based on an adaptation of Fuzzy Contour Trees. Common analysis approaches for time depend…
Knowledge Rocks:Adding Knowledge Assistance to Visualization Systems
Anna-Pia Lohfink, Simon D. Duque Anton, Heike Leitte +1
We present Knowledge Rocks, an implementation strategy and guideline for augmenting visualization systems to knowledge-assisted visualization systems, as defined by the KAVA model.…
Cinema Darkroom: A Deferred Rendering Framework for Large-Scale Datasets
Jonas Lukasczyk, Christoph Garth, Matthew Larsen +5
This paper presents a framework that fully leverages the advantages of a deferred rendering approach for the interactive visualization of large-scale datasets. Geometry buffers (G-…
Localized Topological Simplification of Scalar Data
Jonas Lukasczyk, Christoph Garth, Ross Maciejewski +1
This paper describes a localized algorithm for the topological simplification of scalar data, an essential pre-processing step of topological data analysis (TDA). Given a scalar fi…
Scalable In Situ Lagrangian Flow Map Extraction: Demonstrating the Viability of a Communication-Free Model
Sudhanshu Sane, Abhishek Yenpure, Roxana Bujack +4
We introduce and evaluate a new algorithm for the in situ extraction of Lagrangian flow maps, which we call Boundary Termination Optimization (BTO). Our approach is a communication…
Security in Process: Visually Supported Triage Analysis in Industrial Process Data
Anna-Pia Lohfink, Simon D. Duque Anton, Hans Dieter Schotten +2
Operation technology networks, i.e. hard- and software used for monitoring and controlling physical/industrial processes, have been considered immune to cyber attacks for a long ti…
Mathematical Foundations in Visualization
Ingrid Hotz, Roxana Bujack, Christoph Garth +1
Mathematical concepts and tools have shaped the field of visualization in fundamental ways and played a key role in the development of a large variety of visualization techniques.…
Security in Process: Detecting Attacks in Industrial Process Data
Simon D. Duque Anton, Anna Pia Lohfink, Christoph Garth +1
Due to the fourth industrial revolution, industrial applications make use of the progress in communication and embedded devices. This allows industrial users to increase efficiency…