ECCC
2006
14 years 14 days ago
2006
Given a graph G and a collection of source-sink pairs in G, what is the least integer c such that each source can be connected by a path to its sink, with at most c paths going th...
ISPD
1999
ACM
14 years 4 months ago
1999
ACM
Typical placement objectives involve reducing net-cut cost or minimizing wirelength. Congestion minimization is least understood, however, it models routability accurately. In thi...
STOC
2006
ACM
14 years 6 months ago
2006
ACM
We show that for any constant ε > 0, there is no Ω(log1−ε M)approximation algorithm for the directed congestion minimization problem on networks of size M unless NP ⊆ Z...