Christian Trefftz

According to our database, Christian Trefftz authored at least 46 papers between 1990 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2024

Language Timing for Computing Voronoi Diagrams.

Levi Klamer, T. Elise Dettling, Dan Dietsche, Christian Trefftz, Byron DeVries

Proceedings of the IEEE International Conference on Electro Information Technology, 2024

Comparing Data Structures Used in Divide-and-Conquer Three-Dimensional Voronoi Diagrams.

Dan Dietsche, T. Elise Dettling, Christian Trefftz, Byron DeVries

Proceedings of the IEEE International Conference on Electro Information Technology, 2024

2023

Evaluating performance and portability of high-level programming models: Julia, Python/Numba, and Kokkos on exascale nodes.

William F. Godoy, Pedro Valero-Lara, T. Elise Dettling, Christian Trefftz, Ian Jorquera, Thomas Sheehy, Ross G. Miller, Marc González Tallada, Jeffrey S. Vetter, Valentin Churavy

Proceedings of the IEEE International Parallel and Distributed Processing Symposium, 2023

Divide-and-Conquer Algorithms for Computing Three-Dimensional Voronoi Diagrams.

Dan Dietsche, T. Elise Dettling, Christian Trefftz, Byron DeVries

Proceedings of the IEEE International Conference on Electro Information Technology, 2023

Calculating an Approximate Voronoi Diagram using QuadTrees and Triangles.

T. Elise Dettling, Byron DeVries, Christian Trefftz

Proceedings of the IEEE International Conference on Electro Information Technology, 2023

2022

Optimizing Trade-offs Between Distance and Coverage for Facility Location.

Jhoseph Ruiz Fachin, Christian Trefftz, Xiang Cao, Byron DeVries

Proceedings of the 2022 IEEE International Conference on Electro Information Technology, 2022

2021

A Novelty Search and Metamorphic Testing Approach to Automatic Test Generation.

Byron DeVries, Christian Trefftz

Proceedings of the 14th IEEE/ACM International Workshop on Search-Based Software Testing, 2021

An Algorithm to solve a Facility Location Problem using a Discrete Approximation to the Voronoi Diagram.

Christian Trefftz, Byron DeVries, Benjamin Jenkins

Proceedings of the IEEE International Conference on Electro Information Technology, 2021

2020

A Divide-and-Conquer Algorithm for Computing Voronoi Diagrams.

Elijah Smith, Christian Trefftz, Byron DeVries

Proceedings of the 2020 IEEE International Conference on Electro Information Technology, 2020

Data Allocation and Replication in Data Center: Tradeoff and Solutions.

Xiang Cao, Byron DeVries, Jerry Scripps, Christian Trefftz

Proceedings of the 2020 IEEE International Conference on Electro Information Technology, 2020

2019

Parallelizing FluidC, a Community Finding Algorithm.

Christian Trefftz, Ronald Rounsifer, Jerry Scripps

Proceedings of the 2019 IEEE International Conference on Electro Information Technology, 2019

Data Placement Strategy in Data Center.

Xiang Cao, Jerry Scripps, Christian Trefftz, Zachary Kurmas

Proceedings of the 2019 IEEE International Conference on Electro Information Technology, 2019

Repel Communities and Multipartite Networks.

Jerry Scripps, Christian Trefftz, Gregory Wolffe, Roger Ferguson, Xiang Cao

Proceedings of the Complex Networks and Their Applications VIII, 2019

A Parallel Algorithm to Calculate an Approximation to the Order-K Voronoi Diagram using Java Streams and Thrust.

Christian Trefftz, Debaditya Gautam, Joseph S. Szakas

Proceedings of the IEEE 9th Annual Computing and Communication Workshop and Conference, 2019

2018

The difference between optimal and germane communities.

Jerry Scripps, Christian Trefftz, Zachary Kurmas

Soc. Netw. Anal. Min., 2018

Exhaustive community enumeration on a cluster.

Christian Trefftz, Hugh McGuire, Zack Kurmas, Jerry Scripps, Juan D. Pineda

Proceedings of the IEEE 8th Annual Computing and Communication Workshop and Conference, 2018

2017

Covers, partitions and a heuristic to calculate two-covers.

Christian Trefftz, Zack Kurmas, Jerry Scripps

Proceedings of the IEEE International Conference on Electro Information Technology, 2017

2016

Exhaustive Community Enumeration in Parallel.

Christian Trefftz, Hugh McGuire, Zachary Kurmas, Jerry Scripps

Parallel Process. Lett., 2016

2015

Parallelizing an algorithm to find communities using the Jaccard metric.

Jerry Scripps, Christian Trefftz

Proceedings of the IEEE International Conference on Electro/Information Technology, 2015

2014

Enumerating Communities for a Deeper Understanding of Community Finding.

Zachary Kurmas, Hugh McGuire, Jerry Scripps, Christian Trefftz

Proceedings of the 2014 IEEE/WIC/ACM International Joint Conferences on Web Intelligence (WI) and Intelligent Agent Technologies (IAT), Warsaw, Poland, August 11-14, 2014, 2014

Using an unrank framework to solve small instances of NP-hard problems on graphical processing units.

Nicholas Vogel, Colin Uhen, Zachary Burnside, Sergio Botero, Christian Trefftz, Gregory Wolffe

Proceedings of the IEEE International Conference on Electro/Information Technology, 2014

Parallelizing an algorithm to find the maximal clique on interval graphs on graphical processing units.

Christian Trefftz, Andrés Santamaría-Galvis, Roberto Cruz

Proceedings of the IEEE International Conference on Electro/Information Technology, 2014

2013

Community finding within the community set space.

Jerry Scripps, Christian Trefftz

Proceedings of the 7th Workshop on Social Network Mining and Analysis, 2013

Revisiting a Pattern for Processing Combinatorial Objects in Parallel.

Christian Trefftz, Jerry Scripps

Proceedings of the 2013 IEEE International Symposium on Parallel & Distributed Processing, 2013

Parallel Implementations of FGMRES for Solving Large, Sparse Non-Symmetric Linear Systems.

Byron DeVries, Joe Iannelli, Christian Trefftz, Kurt A. O'Hearn, Gregory Wolffe

Proceedings of the International Conference on Computational Science, 2013

Parallelizing an algorithm to decide if a bipartite graph is shellable.

Andrés Santamaría-Galvis, Roberto Cruz, John Willian Branch, Christian Trefftz

Proceedings of the IEEE International Conference on Electro-Information Technology , 2013

Parallelizing a heuristic for the Maximum Clique Problem on GPUs and clusters of workstations.

Roberto Cruz, Nancy Lopez, Christian Trefftz

Proceedings of the IEEE International Conference on Electro-Information Technology , 2013

2012

An algorithm to solve the Dominating Set Problem on GPUs.

Christian Trefftz

Proceedings of the 2012 IEEE International Conference on Electro/Information Technology, 2012

High-performance implementations of a clustering algorithm for finding network communities.

Alex Restrepo, Andrés Solano, Jerry Scripps, Christian Trefftz, Jonathan Engelsma, Gregory Wolffe

Proceedings of the 2012 IEEE International Conference on Electro/Information Technology, 2012

2009

Accelerated Discovery of Discrete M-Clusters/Outliers on the Raster Plane Using Graphical Processing Units.

Christian Trefftz, Joseph S. Szakas, Igor Majdandzic, Gregory Wolffe

Proceedings of the Computational Science, 2009

Opportunities for parallelism when implementing algorithms in VHDL - a case study - Shift-Or.

Barry Schulz, Chirag Parikh, Christian Trefftz

Proceedings of the 2009 IEEE International Conference on Electro/Information Technology, 2009

2008

Computation of Voronoi diagrams using a graphics processing unit.

Igor Majdandzic, Christian Trefftz, Gregory Wolffe

Proceedings of the 2008 IEEE International Conference on Electro/Information Technology, 2008

2007

An Investigation on Testing of Parallelized Code with OpenMP.

Robert Barnhart, Christian Trefftz, Paul C. Jorgensen, Yonglei Tao

Proceedings of the A Practical Programming Model for the Multi-Core Era, 2007

2006

Voronoi-diagram based heuristics for the location of mobile and unreliable service providers.

Joseph S. Szakas, Christian Trefftz

Proceedings of the IASTED International Conference on Advances in Computer Science and Technology, 2006

2004

Using XML in a compiler course.

D. Robert Adams, Christian Trefftz

Proceedings of the 9th Annual SIGCSE Conference on Innovation and Technology in Computer Science Education, 2004

Two Parallel Computational Geometry Algorithms: A Discrete Voronoi Diagram with Disappearing Seeds and Convex Hull.

Joseph S. Szakas, Christian Trefftz

Proceedings of the 18th International Parallel and Distributed Processing Symposium (IPDPS 2004), 2004

2003

Parallel Algorithms to Find the Voronoi Diagram and the Order-k Voronoi Diagram.

Christian Trefftz, Joseph S. Szakas

Proceedings of the 17th International Parallel and Distributed Processing Symposium (IPDPS 2003), 2003

2002

Observations about an Approximate Algorithm for the Point Robot Motion Planning Problem.

Christian Trefftz, Helmuth Trefftz

Proceedings of the 22nd International Conference of the Chilean Computer Science Society (SCCC 2002), 2002

1995

A Scalable Eigenvalue Solver for Symmetric Tridiagonal Matrices.

Christian Trefftz, C. C. Huang, Philip K. McKinley, Tien-Yien Li, Zhonggang Zeng

Parallel Comput., 1995

A Parallel Algorithm for the Singular Value Problem in Bidiagonal Matrices.

Christian Trefftz, Philip K. McKinley, Tien-Yien Li, Zhonggang Zeng

Proceedings of the Seventh SIAM Conference on Parallel Processing for Scientific Computing, 1995

1994

Design and Performance Evaluation of a Distributed Eigenvalue Solver on a Workstation Cluster.

Christian Trefftz, C. C. Huang, Philip K. McKinley, Tien-Yien Li, Zhonggang Zeng

Proceedings of the 14th International Conference on Distributed Computing Systems, 1994

1993

A Scalable Eigenvalue Solver for Symmetric Tridiagonal Matrices.

Christian Trefftz, Philip K. McKinley, Tien-Yien Li, Zhonggang Zeng

Proceedings of the Sixth SIAM Conference on Parallel Processing for Scientific Computing, 1993

MultiSim: A Simulation Tool for the Study of Large-Scale Multiprocessors.

Philip K. McKinley, Christian Trefftz

Proceedings of the MASCOTS '93, 1993

Efficient Broadcast in All-Port Wormhole-Routed Hypercubes.

Philip K. McKinley, Christian Trefftz

Proceedings of the 1993 International Conference on Parallel Processing, 1993

1991

An algorithm for approximating Dirichlet tessellations (abstract only).

Joseph S. Szakas, Christian Trefftz

Proceedings of the 19th annual conference on Computer Science, 1991

1990

Cooperation of the Pattern Recognition Techniques of Dirichlet Tessellations with Political Science to Produce Ward Partitioning of Cities Without Bias (Abstract).

Joseph S. Szakas, Christian Trefftz

Proceedings of the ACM 18th Annual Computer Science Conference on Cooperation, 1990