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 "open source platform digital personal assistant"):
  Abstract: In our project we introduce open source platform Digital Personal Assistant (DPA). We talk about architecture of the platform and demonstrate potential of DPA on example interaction with Smart Home manager.

Includes members:
  Member "microservices how to make your application scale":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "devops and its philosophy education matters")
  Member "microservices yesterday today and tomorrow":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "size matters microservices research and applications")
  Member "information exchange in randomly deployed dense wsns with wireless energy harvesting capabilities":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "a reference architecture for smart and software defined buildings")
  Member "jolie coog buildings internet of things for smart building infrastructure supporting concurrent apps utilizing distibuted microservices":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "size matters microservices research and applications")

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.HC(Human-Computer Interaction)