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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
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
A Parameterized Complexity Analysis of Combinatorial Feature Selection Problems
We examine the algorithmic tractability of NP-hard combinatorial feature selection problems in terms of parameterized complexity theory. In combinatorial feature selection, one seeks to discard dimensions from...
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Chapter and Conference Paper
Finding Dense Subgraphs of Sparse Graphs
We investigate the computational complexity of the Densest- k -Subgraph (D k S) problem, where the input is an undirected graph G = (V,E) and one wants to f...