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 region of the mimo interference channel with hybrid csit"
  Abstract: The degrees of freedom (DoF) region of the two-user MIMO (multiple-input multiple-output) interference channel is established under a new model termed as hybrid CSIT. In this model, one transmitter has delayed channel state information (CSI) and the other transmitter has instantaneous CSIT, of incoming channel matrices at the respective unpaired receivers, and neither transmitter has any knowledge of the incoming channel matrices of its respective paired receiver. The DoF region for hybrid CSIT, and consequently that of $2\times2\times3^{5}$ CSIT models, is completely characterized, and a new achievable scheme based on a combination of transmit beamforming and retrospective interference alignment is developed. Conditions are obtained on the numbers of antennas at each of the four terminals such that the DoF region under hybrid CSIT is equal to that under (a) global and instantaneous CSIT and (b) global and delayed CSIT, with the remaining cases resulting in a DoF region with hybrid CSIT that lies somewhere in between the DoF regions under the instantaneous and delayed CSIT settings. Further synergistic benefits accruing from switching between the two hybrid CSIT models are also explored.

Connected through hyperedge HE-1 (induced by source paper "degrees of freedom of the two user mimo broadcast channel with private and common messages under hybrid csit models"):
  with members:
    - "miso broadcast channel with hybrid csit beyond two users"
    - "degrees of freedom of the mimo 2x2 interference network with general message sets"
    - "feasibility of interference alignment for the mimo interference channel"
    - "aligned image sets under channel uncertainty settling a conjecture by lapidoth shamai and wigger on the collapse of degrees of freedom under finite precision csit"
    - "on the degrees of freedom of the 3 user miso broadcast channel with hybrid csit"
    - "the degrees of freedom region of temporally correlated mimo networks with delayed csit"
    - "on the dof region of the k user miso broadcast channel with hybrid csit"
    - "degrees of freedom of time correlated miso broadcast channel with delayed csit"

Connected through hyperedge HE-2 (induced by source paper "miso broadcast channel with hybrid csit beyond two users"):
  with members:
    - "dof analysis of the k user miso broadcast channel with hybrid csit"
    - "secure degrees of freedom region of the two user miso broadcast channel with alternating csit"
    - "capacity results for binary fading interference channels with delayed csit"
    - "aligned image sets under channel uncertainty settling a conjecture by lapidoth shamai and wigger on the collapse of degrees of freedom under finite precision csit"
    - "on the degrees of freedom of the 3 user miso broadcast channel with hybrid csit"
    - "the degrees of freedom region of temporally correlated mimo networks with delayed csit"
    - "on the degrees of freedom of k user siso interference and x channels with delayed csit"
    - "on the dof region of the k user miso broadcast channel with hybrid csit"

Connected through hyperedge HE-3 (induced by source paper "the degrees of freedom of the interference channel with a cognitive relay under delayed feedback"):
  with members:
    - "on the capacity region of the two user interference channel with a cognitive relay"
    - "degrees of freedom region of the mimo interference channel with output feedback and delayed csit"
    - "completely stale transmitter channel state information is still very useful"
    - "outer bounds for the interference channel with a cognitive relay"
    - "degrees of freedom of the mimo interference channel with cooperation and cognition"
    - "on the capacity of interference channels with one cooperating transmitter"

Connected through hyperedge HE-4 (induced by source paper "the degrees of freedom region of temporally correlated mimo networks with delayed csit"):
  with members:
    - "on the degrees of freedom of the k user time correlated broadcast channel with delayed csit"
    - "degrees of freedom of time correlated miso broadcast channel with delayed csit"
    - "on the fundamental feedback vs performance tradeoff over the miso bc with imperfect and delayed csit"
    - "degrees of freedom region of the miso broadcast channel with general mixed csit"
    - "optimal use of current and outdated channel state information degrees of freedom of the miso bc with mixed csit"
    - "on the degrees of freedom of time correlated miso broadcast channel with delayed csit"
    - "fundamental limits of cooperation"
    - "not too delayed csit achieves the optimal degrees of freedom"

Connected through hyperedge HE-5 (induced by source paper "on the dof region of the k user miso broadcast channel with hybrid csit"):
  with members:
    - "dof analysis of the k user miso broadcast channel with alternating csit"
    - "degrees of freedom of time correlated miso broadcast channel with delayed csit"
    - "degrees of freedom region of the miso broadcast channel with general mixed csit"
    - "completely stale transmitter channel state information is still very useful"

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)