… , we formulate the VNE problem of SDN as a multiobjective optimization problem which …
the VNE problem of a number of virtual networks into a series of single VNE problems. It should …

… problem to one. We show that VNE is still strongly NP-hard when a single virtual network
request is present or when each virtual … variants of VNE as optimization problems adopt a two…

… In this paper, we approach VNF placement and chaining as an optimization problem, and
propose a fix-and-optimize-based heuristic algorithm for tackling it. Our algorithm incorporates …

… to secure optimization, but it is too time-consuming. This paper presents a novel method that
can optimize virtual networks … This section defines the VN optimization problem. A physical …

… Virtual network Each virtual network is given by a quintuplet R … requested virtual network and
G v is requested virtual network … Where N v and E v are set of virtual nodes and set of virtual …

… Optimization was applied to the optimization problem to cope with uncertain input parameters,
assuming that we have a budget of uncertainty in terms of cardinality constraints, ie the …

… The problem is defined as a combinatorial optimization problem. The solution obtains a
redundant VMP based on the multiple k-redundancy method, which leads to a theoretical …

… of all virtual networks satisfies Definition 1. 5.2 Solving Virtual Network Optimization Problem
… Pareto efficient solution in the virtual network optimization problem. The algorithm first sorts …

… As far as we are aware, none of the above papers have considered the joint optimization
problem of VNFs routing and placement in a multi-clouds scenario. In this work, we formulate …

… on the basis of particle swarm optimization (PSO) method [48]. In general, VNE problem can
also be treated as another combinatorial optimization problem. Through setting the number …