activity
20132015
most citedSpeeding-up Dynamic Programming with Representative Sets - An Experimental Evaluation of Algorithms for Steiner Tree on Tree Decompositions

3 citations · 5 across the 5 of their papers we have counts for

collaborators

5 papers

cs.DS2015★ 1 cited

Preprocessing under uncertainty

Stefan Fafianie, Stefan Kratsch, Voung Anh Quyen

In this work we study preprocessing for tractable problems when part of the input is unknown or uncertain. This comes up naturally if, e.g., the load of some machines or the conges…

cs.DS2015★ 1 cited

A shortcut to (sun)flowers: Kernels in logarithmic space or linear time

Stefan Fafianie, Stefan Kratsch

We investigate whether kernelization results can be obtained if we restrict kernelization algorithms to run in logarithmic space. This restriction for kernelization is motivated by…

cs.DS2014

The Complexity of Finding Effectors

Laurent Bulteau, Stefan Fafianie, Vincent Froese +2

The NP-hard EFFECTORS problem on directed graphs is motivated by applications in network mining, particularly concerning the analysis of probabilistic information-propagation proce…

cs.DS2014

Streaming Kernelization

Stefan Fafianie, Stefan Kratsch

Kernelization is a formalization of preprocessing for combinatorially hard problems. We modify the standard definition for kernelization, which allows any polynomial-time algorithm…

cs.DS2013★ 3 cited

Speeding-up Dynamic Programming with Representative Sets - An Experimental Evaluation of Algorithms for Steiner Tree on Tree Decompositions

Stefan Fafianie, Hans L. Bodlaender, Jesper Nederlof

Dynamic programming on tree decompositions is a frequently used approach to solve otherwise intractable problems on instances of small treewidth. In recent work by Bodlaender et al…