This paper presents the concept of flexibility ? a geometric property associated with Steiner trees. Flexibility is related to the routability of the Steiner tree. We present an o...
Elaheh Bozorgzadeh, Ryan Kastner, Majid Sarrafzade...
We present new primal-dual algorithms for several network design problems. The problems considered are the generalized Steiner tree problem (GST), the directed Steiner tree proble...
We present a general approximation technique for a large class of graph problems. Our technique mostly applies to problems of covering, at minimum cost, the vertices of a graph wit...
This article describes and compares three heuristics for a variant of the Steiner tree problem with revenues, which includes budget and hop constraints. First, a greedy method whi...