Walter Unger

Affiliations:
  • RWTH Aachen University, Germany


According to our database1, Walter Unger authored at least 57 papers between 1988 and 2023.

Collaborative distances:
  • Dijkstra number2 of three.
  • Erdős number3 of two.

Timeline

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Bibliography

2023
Zero-Memory Graph Exploration with Unknown Inports.
Proceedings of the Structural Information and Communication Complexity, 2023

2022
Exploring sparse graphs with advice.
Inf. Comput., 2022

2021
On the advice complexity of the online dominating set problem.
Theor. Comput. Sci., 2021

Heuristic Strategies for NFV-Enabled Renewable and Non-Renewable Energy Management in the Future IoT World.
IEEE Access, 2021

2018
Online Matching in Regular Bipartite Graphs.
Parallel Process. Lett., 2018

Online Graph Coloring Against a Randomized Adversary.
Int. J. Found. Comput. Sci., 2018

The Graph Exploration Problem with Advice.
CoRR, 2018

Exploring Sparse Graphs with Advice (Extended Abstract).
Proceedings of the Approximation and Online Algorithms - 16th International Workshop, 2018

Fully Online Matching with Advice on General Bipartite Graphs and Paths.
Proceedings of the Adventures Between Lower Bounds and Higher Altitudes, 2018

2016
The Friendship Problem on Graphs.
J. Multiple Valued Log. Soft Comput., 2016

Online Exploration of Rectangular Grids.
CoRR, 2016

Online Graph Coloring with Advice and Randomized Adversary - (Extended Abstract).
Proceedings of the SOFSEM 2016: Theory and Practice of Computer Science, 2016

2015
The k-Observer Problem on d-regular Graphs.
Proceedings of the Stabilization, Safety, and Security of Distributed Systems, 2015

Learning-based control strategies for hybrid electric vehicles.
Proceedings of the 2015 IEEE Conference on Control Applications, 2015

2014
A heuristic for logical data buffer allocation in multicore platforms.
Proceedings of the IEEE 33rd International Performance Computing and Communications Conference, 2014

2013
Advice Complexity of the Online Coloring Problem.
Proceedings of the Algorithms and Complexity, 8th International Conference, 2013

2011
Hardness results for approximating the bandwidth.
J. Comput. Syst. Sci., 2011

Public-Key Cryptography.
Proceedings of the Algorithms Unplugged, 2011

2010
An Optimal Algorithm for the <i>k</i>-Fixed-Endpoint Path Cover on Proper Interval Graphs.
Math. Comput. Sci., 2010

Preemptive Scheduling of Equal-Length Jobs in Polynomial Time.
Math. Comput. Sci., 2010

Topology Control and Routing in Ad Hoc Networks.
Proceedings of the Graphs and Algorithms in Communication Networks: Studies in Broadband, 2010

2009
On the Size of Permutation Networks and Consequences for Efficient Simulation of Hypercube Algorithms on Bounded-Degree Networks.
SIAM J. Discret. Math., 2009

The Minimal Manhattan Network Problem in Three Dimensions.
Proceedings of the WALCOM: Algorithms and Computation, Third International Workshop, 2009

2008
Public-Key-Kryptographie.
Proceedings of the Taschenbuch der Algorithmen, 2008

On k-connectivity problems with sharpened triangle inequality.
J. Discrete Algorithms, 2008

An optimal algorithm for the k-fixed-endpoint path cover on proper interval graphs.
Proceedings of the 19th International Workshop on Combinatorial Algorithms, 2008

2007
On-line load balancing made simple: Greedy strikes back.
J. Discrete Algorithms, 2007

On the Complexity of the Traffic Grooming Problem in Optical Networks.
Proceedings of the Fun with Algorithms, 4th International Conference, 2007

2006
Technologies and reliability of modern embedded flash cells.
Microelectron. Reliab., 2006

2005
A 1.5-Approximation of the Minimal Manhattan Network Problem.
Proceedings of the Algorithms and Computation, 16th International Symposium, 2005

Dissemination of Information in Communication Networks - Broadcasting, Gossiping, Leader Election, and Fault-Tolerance
Texts in Theoretical Computer Science. An EATCS Series, Springer, ISBN: 978-3-540-26663-1, 2005

2004
On the hardness of constructing minimal 2-connected spanning subgraphs in complete graphs with sharpened triangle inequality.
Theor. Comput. Sci., 2004

2003
Elastic image matching is NP-complete.
Pattern Recognit. Lett., 2003

Online Load Balancing Made Simple: Greedy Strikes Back.
Proceedings of the Automata, Languages and Programming, 30th International Colloquium, 2003

On k-Edge-Connectivity Problems with Sharpened Triangle Inequality.
Proceedings of the Algorithms and Complexity, 5th Italian Conference, 2003

2002
The hardness of placing street names in a Manhattan type map.
Theor. Comput. Sci., 2002

Towards the notion of stability of approximation for hard optimization tasks and the traveling salesman problem.
Theor. Comput. Sci., 2002

Scheduling Time-Constrained Communication in Linear Networks.
Theory Comput. Syst., 2002

2001
Foreword.
Theor. Comput. Sci., 2001

One Sided Crossing Minimization Is NP-Hard for Sparse Graphs.
Proceedings of the Graph Drawing, 9th International Symposium, 2001

2000
Approximation algorithms for the TSP with sharpened triangle inequality.
Inf. Process. Lett., 2000

An Improved Lower Bound on the Approximability of Metric TSP and Approximation Algorithms for the TSP with Sharpened Triangle Inequality.
Proceedings of the STACS 2000, 2000

1998
Optimal Embedding of Complete Binary Trees into Lines and Grids.
J. Parallel Distributed Comput., 1998

Embedding ladders and caterpillars into the hypercube.
Discret. Appl. Math., 1998

The Complexity of the Approximation of the Bandwidth Problem.
Proceedings of the 39th Annual Symposium on Foundations of Computer Science, 1998

1997
Optimal Algorithms for Broadcast and Gossip in the Edge-Disjoint Path Modes.
Inf. Comput., 1997

1996
Systolic Gossip in Complete Trees.
Proceedings of the SIROCCO'96, 1996

1995
On the Sizes of Permutation Networks and Consequences for Efficient Simulation of Hypercube Algorithms on Bounded-Degree Networks.
Proceedings of the STACS 95, 1995

Effective Systolic Algorithms for Gossiping in Cycles and Two-Dimensional Grids (Extended Abstract).
Proceedings of the Fundamentals of Computation Theory, 10th International Symposium, 1995

1994
The Complexity of Systolic Dissemination of Information in Interconnection Networks.
RAIRO Theor. Informatics Appl., 1994

Automorphisms of Broadcasting Schemes with Respect to Start Rounds.
Inf. Process. Lett., 1994

Optimal Algorithms for Broadcast and Gossip in the Edge-Disjoint Path Modes (Extended Abstract).
Proceedings of the Algorithm Theory, 1994

Embedding 3-dimensional Grids into Optimal Hypercubes.
Proceedings of the Parallel and Distributed Computing, 1994

1992
The Cube-Connected Cycles Network Is a Subgraph of the Butterfly Network.
Parallel Process. Lett., 1992

The Complexity of Colouring Circle Graphs (Extended Abstract).
Proceedings of the STACS 92, 1992

1990
Färbung von Kreissehnengraphen.
PhD thesis, 1990

1988
On the k-Colouring of Circle-Graphs.
Proceedings of the STACS 88, 1988


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