human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge groups authors who co-authored the same paper.

Details of the hypergraph:
Center hyperedge (induced by source paper "Inter-Cloud architectures and application brokering: taxonomy and survey"):
  Abstract: Although Cloud computing itself has many open problems, researchers in the field have already made the leap to envision Inter-Cloud computing. Their goal is to achieve better overall Quality of Service QoS, reliability and cost efficiency by utilizing multiple clouds. Inter-Cloud research is still in its infancy, and the body of knowledge in the area has not been well defined yet. In this work, we propose and motivate taxonomies for Inter-Cloud architectures and application brokering mechanisms. We present a detailed survey of the state of the art in terms of both academic and industry developments 20 projects, and we fit each project onto the discussed taxonomies. We discuss how the current Inter-Cloud environments facilitate brokering of distributed applications across clouds considering their nonfunctional requirements. Finally, we analyse the existing works and identify open challenges and trends in the area of Inter-Cloud application brokering. Copyright © 2012 John Wiley & Sons, Ltd.

Includes members:
  Member "A Virtual Machine Placement Taxonomy":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "Workload Trace Generation for Dynamic Environments in Cloud Computing")
  Member "Using Semantic Web Ontology for Intercloud Directories and Exchanges.":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "A Layered Security Approach for Cloud Computing Infrastructure")

Question: Please tell me which research area the co-authored paper (i.e., the source paper of the center hyperedge) belongs to. The 4 classes are: Computer science, Mathematics, Engineering, Economics, Psychology, Business. Directly output the class name.

gpt: Computer science