This project is about parameterized approximation algorithms for the Directed Steiner Network (DSN) problem. The aim is to classify the patterns of the demand graphs that lead to different approximation ratios when allowing a running time parameterized by the number of terminals. Both algorithms and lower bounds can be proved for different classes of patterns.
Seznam odborné literatury
- Rajesh Chitnis, Andreas Emil Feldmann, Pasin Manurangsi: Parameterized Approximation Algorithms for Bidirected Steiner Network Problems. Transactions on Algorithms.
- Andreas Emil Feldmann, Dániel Marx: The Complexity Landscape of Fixed-Parameter Directed Steiner Network Problems. Transactions on Computation Theory.