7 Result(s)
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Chapter and Conference Paper
The Complexity of Cluster Vertex Splitting and Company
Clustering a graph when the clusters can overlap can be seen from three different angles: We may look for cliques that cover the edges of the graph with bounded overlap, we may look to add or delete few edges ...
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Chapter and Conference Paper
On (Coalitional) Exchange-Stable Matching
We study , which Alcalde [Economic Design, 1995] introduced as an alternative solution concept for matching markets involving property rights, such as assigning persons to ...
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Chapter and Conference Paper
Efficient Algorithms for Measuring the Funnel-Likeness of DAGs
Funnels are a new natural subclass of DAGs. Intuitively, a DAG is a funnel if every source-sink path can be uniquely identified by one of its arcs. Funnels are an analog to trees for directed graphs that is mo...
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Chapter and Conference Paper
The Parameterized Complexity of Centrality Improvement in Networks
The centrality of a vertex v in a network intuitively captures how important v is for communication in the network. The task of improving the centrality of a vertex has many applications, as a higher centrality o...
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Chapter and Conference Paper
Twins in Subdivision Drawings of Hypergraphs
Visualizing hypergraphs, systems of subsets of some universe, has continuously attracted research interest in the last decades. We study a natural kind of hypergraph visualization called subdivision drawings. Din...
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Chapter and Conference Paper
Finding Connected Subgraphs of Fixed Minimum Density: Implementation and Experiments
We consider the following problem. Given a graph and a rational number \(\mu \) ,
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Chapter and Conference Paper
Finding Highly Connected Subgraphs
A popular way of formalizing clusters in networks are highly connected subgraphs, that is, subgraphs of k vertices that have edge connectivity larger than k/2 (equivalently, minimum degree larger than k/2). We ex...
