human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "using object relational mapping to create the distributed databases in a hybrid cloud infrastructure"):
  Abstract: One of the challenges currently problems in the use of cloud services is the task of designing of data management systems. This is especially important for hybrid systems in which the data are located in public and private clouds. Implementation monitoring functions querying, scheduling and processing software must be properly implemented and is an integral part of the system. To provide these functions is proposed to use an object-relational mapping (ORM). The article devoted to presenting the approach of designing databases for information systems hosted in a hybrid cloud infrastructure. It also provides an example of the development of ORM library.

Includes members:
  Member "optimal control of applications for hybrid cloud services":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "designing applications with distributed databases in a hybrid cloud")
  Member "concept of feedback in future computing models to cloud systems":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "designing applications with distributed databases in a hybrid cloud")
  Member "virtual laboratories in cloud infrastructure of educational institutions":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "designing applications with distributed databases in a hybrid cloud")
  Member "use of dynamical systems modeling to hybrid cloud database":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "designing applications with distributed databases in a hybrid cloud")
  Member "autonomic cloud computing open challenges and architectural elements":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "a deep learning based approach to vm behavior identification in cloud systems")

Question: Please tell me which class the source paper belongs to. The 40 classes are: cs.NA(Numerical Analysis), cs.MM(Multimedia), cs.LO(Logic in Computer Science), cs.CY(Computers and Society), cs.CR(Cryptography and Security), cs.DC(Distributed, Parallel, and Cluster Computing), cs.HC(Human-Computer Interaction), cs.CE(Computational Engineering, Finance, and Science), cs.NI(Networking and Internet Architecture), cs.CC(Computational Complexity), cs.AI(Artificial Intelligence), cs.MA(Multiagent Systems), cs.GL(General Literature), cs.NE(Neural and Evolutionary Computing), cs.SC(Symbolic Computation), cs.AR(Hardware Architecture), cs.CV(Computer Vision and Pattern Recognition), cs.GR(Graphics), cs.ET(Emerging Technologies), cs.SY(Systems and Control), cs.CG(Computational Geometry), cs.OH(Other Computer Science), cs.PL(Programming Languages), cs.SE(Software Engineering), cs.LG(Machine Learning), cs.SD(Sound), cs.SI(Social and Information Networks), cs.RO(Robotics), cs.IT(Information Theory), cs.PF(Performance), cs.CL(Computation and Language), cs.IR(Information Retrieval), cs.MS(Mathematical Software), cs.FL(Formal Languages and Automata Theory), cs.DS(Data Structures and Algorithms), cs.OS(Operating Systems), cs.GT(Computer Science and Game Theory), cs.DB(Databases), cs.DL(Digital Libraries), cs.DM(Discrete Mathematics). Directly output the class name.

gpt: cs.DB(Databases)