Improved Steiner Approximation Algorithm Based on Topology Analysis
نویسندگان
چکیده
منابع مشابه
Improved approximation algorithms for Directed Steiner Forest
We consider the k-Directed Steiner Forest (k-DSF) problem: Given a directed graph G = (V,E) with edge costs, a collection D ⊆ V × V of ordered node pairs, and an integer k ≤ |D|, find a minimum cost subgraph H of G that contains an st-path for (at least) k pairs (s, t) ∈ D. When k = |D|, we get the Directed Steiner Forest (DSF) problem. The best known approximation ratios for these problems are...
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ژورنال
عنوان ژورنال: Information Technology Journal
سال: 2004
ISSN: 1812-5638
DOI: 10.3923/itj.2005.11.15