Search Results for author: Alexander Noe

Found 7 papers, 5 papers with code

A Metaheuristic Algorithm for Large Maximum Weight Independent Set Problems

no code implementations28 Mar 2022 Yuanyuan Dong, Andrew V. Goldberg, Alexander Noe, Nikos Parotsidis, Mauricio G. C. Resende, Quico Spaen

To solve instances of this size, we develop a new local search algorithm, which is a metaheuristic in the greedy randomized adaptive search (GRASP) framework.

Practical Fully Dynamic Minimum Cut Algorithms

1 code implementation13 Jan 2021 Monika Henzinger, Alexander Noe, Christian Schulz

We present a practically efficient algorithm for maintaining a global minimum cut in large dynamic graphs under both edge insertions and deletions.

Data Structures and Algorithms

Faster Parallel Multiterminal Cuts

1 code implementation24 Apr 2020 Monika Henzinger, Alexander Noe, Christian Schulz

We give an improved branch-and-bound solver for the multiterminal cut problem, based on the recent work of Henzinger et al.. We contribute new, highly effective data reduction rules to transform the graph into a smaller equivalent instance.

Data Structures and Algorithms Combinatorics

Finding All Global Minimum Cuts In Practice

1 code implementation17 Feb 2020 Monika Henzinger, Alexander Noe, Christian Schulz, Darren Strash

We present a practically efficient algorithm that finds all global minimum cuts in huge undirected graphs.

Data Structures and Algorithms

Shared-Memory Branch-and-Reduce for Multiterminal Cuts

no code implementations12 Aug 2019 Monika Henzinger, Alexander Noe, Christian Schulz

We introduce the fastest known exact algorithm~for~the multiterminal cut problem with k terminals.

Data Structures and Algorithms Distributed, Parallel, and Cluster Computing

Shared-memory Exact Minimum Cuts

2 code implementations16 Aug 2018 Monika Henzinger, Alexander Noe, Christian Schulz

State-of-the-art algorithms like the algorithm of Padberg and Rinaldi or the algorithm of Nagamochi, Ono and Ibaraki identify edges that can be contracted to reduce the graph size such that at least one minimum cut is maintained in the contracted graph.

Data Structures and Algorithms

Practical Minimum Cut Algorithms

2 code implementations21 Aug 2017 Monika Henzinger, Alexander Noe, Christian Schulz, Darren Strash

The minimum cut problem for an undirected edge-weighted graph asks us to divide its set of nodes into two blocks while minimizing the weight sum of the cut edges.

Data Structures and Algorithms Distributed, Parallel, and Cluster Computing

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