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: "the degrees of freedom of the mimo y channel"
  Abstract: The degrees of freedom (DoF) of the MIMO Y-channel, a multi-way communication network consisting of 3 users and a relay, are characterized for arbitrary number of antennas. The converse is provided by cut-set bounds and novel genie-aided bounds. The achievability is shown by a scheme that uses beamforming to establish network coding on-the-fly at the relay in the uplink, and zero-forcing pre-coding in the downlink. It is shown that the network has min{2M_2+2M_3,M_1+M_2+M_3,2N} DoF, where M_j and N represent the number of antennas at user j and the relay, respectively. Thus, in the extreme case where M_1+M_2+M_3 dominates the DoF expression and is smaller than N, the network has the same DoF as the MAC between the 3 users and the relay. In this case, a decode and forward strategy is optimal. In the other extreme where 2N dominates, the DoF of the network is twice that of the aforementioned MAC, and hence network coding is necessary. As a byproduct of this work, it is shown that channel output feedback from the relay to the users has no impact on the DoF of this channel.

Connected through hyperedge HE-1 (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-2 (induced by source paper "on the degrees of freedom of the symmetric multi relay mimo y 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"
    - "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"
    - "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 "capacity of the gaussian two pair two way relay channel to within 1 2 bit"):
  with members:
    - "optimal dof region for the asymmetric two pair mimo two way relay channel"
    - "expanding the compute and forward framework unequal powers signal levels and multiple linear combinations"
    - "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"
    - "degrees of freedom for the mimo multi way relay channel"
    - "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"
    - "reliable physical layer network coding"

Connected through hyperedge HE-4 (induced by source paper "optimal degrees of freedom region for the asymmetric mimo y channel"):
  with members:
    - "optimal dof region for the asymmetric two pair mimo two way relay 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 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"

Connected through hyperedge HE-5 (induced by source paper "cyclic communication and the inseparability of mimo multi way relay channels"):
  with members:
    - "spectral and energy efficiency in 3 way relay channels with circular message exchanges"
    - "simultaneous diagonalization on the dof region of the k user mimo multi way relay channel"
    - "beyond one way communication degrees of freedom of multi way relay mimo interference networks"
    - "approximate sum capacity of the y channel"
    - "degrees of freedom for the mimo multi way relay channel"
    - "the deterministic multicast capacity of 4 node relay networks"
    - "optimal transmit power allocation for mimo two way cognitive relay networks with multiple relays"
    - "divide and conquer approaching the capacity of the two pair bidirectional gaussian relay network"

Connected through hyperedge HE-6 (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"
    - "degrees of freedom for mimo two way x relay channel"

Connected through hyperedge HE-7 (induced by source paper "a new dof upper bound and its achievability for k user mimo y channels"):
  with members:
    - "generalized signal alignment on the achievable dof for multi user mimo two way relay channels"
    - "generalized signal alignment for mimo two way x relay channels"
    - "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"

Connected through hyperedge HE-8 (induced by source paper "achievable degrees of freedom on k user mimo multi way relay channel with common and private messages"):
  with members:
    - "generalized signal alignment for arbitrary mimo two way relay channels"
    - "degrees of freedom for the mimo multi way relay channel"
    - "degrees of freedom of wireless x networks"

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)