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: "capacity region of the deterministic multi pair bi directional relay network"
  Abstract: In this paper we study the capacity region of the multi-pair bidirectional (or two-way) wireless relay network, in which a relay node facilitates the communication between multiple pairs of users. This network is a generalization of the well known bidirectional relay channel, where we have only one pair of users. We examine this problem in the context of the deterministic channel interaction model, which eliminates the channel noise and allows us to focus on the interaction between signals. We characterize the capacity region of this network when the relay is operating at either full-duplex mode or half-duplex mode (with non adaptive listen-transmit scheduling). In both cases we show that the cut-set upper bound is tight and, quite interestingly, the capacity region is achieved by a simple equation-forwarding strategy.

Connected through hyperedge HE-1 (induced by source paper "on the capacity region of the deterministic y channel with common and private messages"):
  with members:
    - "the deterministic multicast capacity of 4 node relay networks"
    - "the capacity region of the linear shift deterministic y channel"

Connected through hyperedge HE-2 (induced by source paper "optimal dof region for the asymmetric two pair mimo two way relay channel"):
  with members:
    - "optimal degrees of freedom region for the asymmetric mimo y channel"
    - "generalized signal alignment on the achievable dof for multi user mimo two way relay channels"
    - "cyclic communication and the inseparability of mimo multi way relay channels"
    - "mimo multiway relaying with clustered full data exchange signal space alignment and degrees of freedom"
    - "mimo multiway relaying with pairwise data exchange a degrees of freedom perspective"
    - "generalized signal alignment for arbitrary mimo two way relay channels"
    - "approximate sum capacity of the y channel"
    - "degrees of freedom for the mimo multi way relay channel"

Connected through hyperedge HE-3 (induced by source paper "joint source and relay optimization for interference mimo relay networks"):
  with members:
    - "energy harvesting enabled mimo relaying through power splitting"

Connected through hyperedge HE-4 (induced by source paper "on the capacity regions of two way diamond channels"):
  with members:
    - "on the symmetric k user interference channels with limited feedback"
    - "on the capacity and degrees of freedom regions of two user mimo interference channels with limited receiver cooperation"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "nested lattice codes for gaussian two way relay channels"
    - "lattice coding for the two way two relay channel"
    - "the gaussian two way diamond channel"
    - "on the capacity region and the generalized degrees of freedom region for the mimo interference channel with feedback"
    - "divide and conquer approaching the capacity of the two pair bidirectional gaussian relay network"

Connected through hyperedge HE-5 (induced by source paper "generalized signal alignment on the achievable dof for multi user mimo two way relay channels"):
  with members:
    - "a new dof upper bound and its achievability for k user mimo y channels"
    - "generalized signal alignment for mimo two way x relay channels"
    - "mimo multiway relaying with clustered full data exchange signal space alignment and degrees of freedom"
    - "beyond one way communication degrees of freedom of multi way relay mimo interference networks"
    - "mimo multiway relaying with pairwise data exchange a degrees of freedom perspective"
    - "generalized signal alignment for arbitrary mimo two way relay channels"
    - "degrees of freedom for the mimo multi way relay channel"
    - "the degrees of freedom of the mimo y channel"

Connected through hyperedge HE-6 (induced by source paper "on channel inseparability and the dof region of mimo multi way relay channels"):
  with members:
    - "simultaneous diagonalization on the dof region of the k user mimo multi way relay channel"
    - "approximate sum capacity of the y channel"
    - "the degrees of freedom of the mimo y channel"
    - "divide and conquer approaching the capacity of the two pair bidirectional gaussian relay network"
    - "signal space alignment for the gaussian y channel"
    - "the multi way relay channel"
    - "interference alignment and the degrees of freedom for the k user interference channel"

Connected through hyperedge HE-7 (induced by source paper "using network coding to achieve the capacity of deterministic relay networks with relay messages"):
  with members:
    - "achievable degrees of freedom region of the mimo relay networks using the detour schemes"
    - "degrees of freedom for the mimo multi way relay channel"
    - "the deterministic multicast capacity of 4 node relay networks"
    - "the deterministic capacity of relay networks with relay private messages"
    - "the degrees of freedom of the mimo y channel"
    - "wireless network information flow a deterministic approach"
    - "the capacity region of the linear shift deterministic y channel"

Connected through hyperedge HE-8 (induced by source paper "approximate sum capacity of the y channel"):
  with members:
    - "degrees of freedom of two hop wireless networks everyone gets the entire cake"
    - "divide and conquer approaching the capacity of the two pair bidirectional gaussian relay network"
    - "on the equal rate capacity of the awgn multiway relay channel"
    - "wireless network information flow a deterministic approach"
    - "the capacity region of the linear shift deterministic y channel"
    - "on the sum capacity of the y channel"
    - "the multi way relay channel"
    - "bidirectional multi pair network with a mimo relay beamforming strategies and lack of duality"

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)