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: "wireless network simplification the gaussian n relay diamond network"
  Abstract: We consider the Gaussian N-relay diamond network, where a source wants to communicate to a destination node through a layer of N-relay nodes. We investigate the following question: what fraction of the capacity can we maintain by using only k out of the N available relays? We show that independent of the channel configurations and the operating SNR, we can always find a subset of k relays which alone provide a rate (kC/(k+1))-G, where C is the information theoretic cutset upper bound on the capacity of the whole network and G is a constant that depends only on N and k (logarithmic in N and linear in k). In particular, for k = 1, this means that half of the capacity of any N-relay diamond network can be approximately achieved by routing information over a single relay. We also show that this fraction is tight: there are configurations of the N-relay diamond network where every subset of k relays alone can at most provide approximately a fraction k/(k+1) of the total capacity. These high-capacity k-relay subnetworks can be also discovered efficiently. We propose an algorithm that computes a constant gap approximation to the capacity of the Gaussian N-relay diamond network in O(N log N) running time and discovers a high-capacity k-relay subnetwork in O(kN) running time. #R##N#This result also provides a new approximation to the capacity of the Gaussian N-relay diamond network which is hybrid in nature: it has both multiplicative and additive gaps. In the intermediate SNR regime, this hybrid approximation is tighter than existing purely additive or purely multiplicative approximations to the capacity of this network.

Connected through hyperedge HE-1 (induced by source paper "best relay selection in gaussian half duplex diamond networks"):
  with members:
    - "efficiently finding simple schedules in gaussian half duplex relay line networks"
    - "on the optimality of simple schedules for networks with multiple half duplex relays"
    - "softnull many antenna full duplex wireless via digital beamforming"
    - "wireless communications with unmanned aerial vehicles opportunities and challenges"
    - "unmanned aerial vehicle with underlaid device to device communications performance and tradeoffs"
    - "wireless network simplification beyond diamond networks"
    - "design and characterization of a full duplex multiantenna system for wifi networks"
    - "gaussian half duplex relay networks improved constant gap and connections with the assignment problem"

Connected through hyperedge HE-2 (induced by source paper "generalized degrees of freedom of noncoherent diamond networks"):
  with members:
    - "generalized degrees freedom of noncoherent mimo with asymmetric links"
    - "capacity approximations for gaussian relay networks"
    - "cooperative relaying at finite snr role of quantize map and forward"
    - "wireless network information flow a deterministic approach"
    - "the approximate capacity of the gaussian n relay diamond network"
    - "on noncoherent fading relay channels at high signal to noise ratio"
    - "approximately achieving gaussian relay network capacity with lattice codes"
    - "generalized degrees of freedom of the symmetric gaussian k user interference channel"

Connected through hyperedge HE-3 (induced by source paper "on capacity of non coherent diamond networks"):
  with members:
    - "capacity approximations for gaussian relay networks"
    - "the approximate capacity of the gaussian n relay diamond network"
    - "on noncoherent fading relay channels at high signal to noise ratio"
    - "hierarchical cooperation achieves optimal capacity scaling in ad hoc networks"

Connected through hyperedge HE-4 (induced by source paper "wireless network simplification the performance of routing"):
  with members:
    - "network simplification in half duplex building on submodularity"
    - "network simplification for secure af relaying"
    - "consistency in the face of change an adaptive approach to physical layer cooperation"
    - "cut set bound is loose for gaussian relay networks"
    - "wireless network information flow a deterministic approach"
    - "a simple cooperative diversity method based on network path selection"

Connected through hyperedge HE-5 (induced by source paper "network simplification for secure af relaying"):
  with members:
    - "secure transmission in amplify and forward diamond networks with a single eavesdropper"
    - "analog network coding in general snr regime"
    - "relay beamforming strategies for physical layer security"
    - "collaborative relay beamforming for secrecy"
    - "discrete memoryless interference and broadcast channels with confidential messages secrecy rate regions"
    - "a simple cooperative diversity method based on network path selection"

Connected through hyperedge HE-6 (induced by source paper "network simplification in half duplex building on submodularity"):
  with members:
    - "on the impact of a single edge on the network coding capacity"
    - "on network simplification for gaussian half duplex diamond networks"
    - "cut set bound is loose for gaussian relay networks"
    - "the approximate optimality of simple schedules for half duplex multi relay networks"
    - "gaussian half duplex relay networks improved constant gap and connections with the assignment problem"

Connected through hyperedge HE-7 (induced by source paper "wireless network simplification beyond diamond networks"):
  with members:
    - "a note on antenna selection in gaussian mimo channels capacity guarantees and bounds"
    - "analog network coding in general snr regime performance of network simplification"
    - "wireless network information flow a deterministic approach"

Connected through hyperedge HE-8 (induced by source paper "on network simplification for gaussian half duplex diamond networks"):
  with members:
    - "the approximate optimality of simple schedules for half duplex multi relay networks"
    - "gaussian half duplex relay networks improved constant gap and connections with the assignment problem"

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)