human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent sets of papers co-cited by a source paper.

Details of the hypergraph:
Center node: "on the degrees of freedom regions of two user mimo z and full interference channels with reconfigurable antennas"
  Abstract: We study the degrees of freedom (DoF) regions of two-user multiple-input multiple-output (MIMO) Z and full interference channels in this paper. We assume that the receivers always have perfect channel state information. We derive the DoF region of Z interference channel with channel state information at transmitter (CSIT). For full interference channel without CSIT, the DoF region has been obtained in previous work except for a special case M1< N1<min(M2,N2), where M_i and N_i are the number of transmit and receive antennas of user i, respectively. We show that for this case the DoF regions of the Z and full interference channels are the same. We establish the achievability based on the assumption of transmitter antenna mode switching. A systematic way of constructing the DoF-achieving nulling and beamforming matrices is presented in this paper.

Connected through hyperedge HE-1 (induced by source paper "blind interference alignment for private information retrieval"):
  with members:
    - "the capacity of private information retrieval"
    - "generalized degrees of freedom of the symmetric k user interference channel under finite precision csit"
    - "private information retrieval for coded storage"
    - "2 server pir with sub polynomial communication"
    - "topological interference management through index coding"
    - "precoding based network alignment for three unicast sessions"
    - "index coding capacity how far can one go with only shannon inequalities"
    - "graph theoretic characterization of the feasibility of the precoding based 3 unicast interference alignment scheme"

Connected through hyperedge HE-2 (induced by source paper "the capacity of private information retrieval"):
  with members:
    - "blind interference alignment for private information retrieval"
    - "storage capacity of repairable networks"
    - "private information retrieval for coded storage"
    - "2 server pir with sub polynomial communication"
    - "topological interference management through index coding"
    - "index coding capacity how far can one go with only shannon inequalities"
    - "on the locality of codeword symbols"
    - "a survey on network codes for distributed storage"

Connected through hyperedge HE-3 (induced by source paper "mimo z channel interference management"):
  with members:
    - "parallel routing in mobile ad hoc networks"
    - "the diversity multiplexing tradeoff of the mimo z interference channel"
    - "mimo networks the effects of interference"
    - "mimo z interference channels capacity under strong and noisy interference"
    - "space division multiple access with a sum feedback rate constraint"

Connected through hyperedge HE-4 (induced by source paper "degrees of freedom region for an interference network with general message demands"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "degrees of freedom regions of two user mimo z and full interference channels the benefit of reconfigurable antennas"
    - "interference alignment for the k user mimo interference channel"
    - "the approximate capacity of the many to one and one to many gaussian interference channels"
    - "aiming perfectly in the dark blind interference alignment through staggered antenna switching"
    - "capacity regions and sum rate capacities of vector gaussian interference channels"
    - "on feasibility of interference alignment in mimo interference networks"
    - "the degrees of freedom of mimo interference channels without state information at transmitters"

Question: Please tell me which class the center node 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.IT(Information Theory)