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Network virtualization is a core technology in next-generation networks to overcome the ossification problem that is observed in the current Internet. The key idea of network virtualization is to split physical network resources into multiple logical networks, each supporting different network services and functionalities. One of the key challenges for virtual network infrastructure providers is to efficiently allocate network resources based on virtual network requests, which is referred to as the virtual network mapping problem. While several algorithms have been proposed previously to solve this mapping problem, their effectiveness is limited since virtual requests specify the internal topology of the virtual network.
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