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: "degraded compound multi receiver wiretap channels"
  Abstract: In this paper, we study the degraded compound multi-receiver wiretap channel. The degraded compound multi-receiver wiretap channel consists of two groups of users and a group of eavesdroppers, where, if we pick an arbitrary user from each group of users and an arbitrary eavesdropper, they satisfy a certain Markov chain. We study two different communication scenarios for this channel. In the first scenario, the transmitter wants to send a confidential message to users in the first (stronger) group and a different confidential message to users in the second (weaker) group, where both messages need to be kept confidential from the eavesdroppers. For this scenario, we assume that there is only one eavesdropper. We obtain the secrecy capacity region for the general discrete memoryless channel model, the parallel channel model, and the Gaussian parallel channel model. For the Gaussian multiple-input multiple-output (MIMO) channel model, we obtain the secrecy capacity region when there is only one user in the second group. In the second scenario we study, the transmitter sends a confidential message to users in the first group which needs to be kept confidential from the second group of users and the eavesdroppers. Furthermore, the transmitter sends a different confidential message to users in the second group which needs to be kept confidential only from the eavesdroppers. For this scenario, we do not put any restriction on the number of eavesdroppers. As in the first scenario, we obtain the secrecy capacity region for the general discrete memoryless channel model, the parallel channel model, and the Gaussian parallel channel model. For the Gaussian MIMO channel model, we establish the secrecy capacity region when there is only one user in the second group.

Connected through hyperedge HE-1 (induced by source paper "an improved feedback coding scheme for the wire tap channel"):
  with members:
    - "finite state markov wiretap channel with delayed feedback"
    - "wiretap channel with causal state information and secure rate limited feedback"
    - "secrecy results for compound wiretap channels"

Connected through hyperedge HE-2 (induced by source paper "secure degrees of freedom regions of multiple access and interference channels the polytope structure"):
  with members:
    - "secure degrees of freedom of one hop wireless networks"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "secure degrees of freedom of the gaussian wiretap channel with helpers and no eavesdropper csi blind cooperative jamming"
    - "secure degrees of freedom of k user gaussian interference channels a unified view"
    - "interference alignment for secrecy"
    - "on the secure degrees of freedom of the multiple access channel"
    - "ergodic secret alignment"
    - "cooperation with an untrusted relay a secrecy perspective"

Connected through hyperedge HE-3 (induced by source paper "individual secrecy for broadcast channels with receiver side information"):
  with members:
    - "secure multiplex coding with dependent and non uniform multiple messages"
    - "strong secrecy for cooperative broadcast channels"
    - "individual secrecy for the broadcast channel"
    - "secrecy capacity region of some classes of wiretap broadcast channels"
    - "capacity regions for broadcast channels with degraded message sets and message cognition under different secrecy constraints"
    - "on block security of regenerating codes at the mbr point for distributed storage systems"
    - "effective secrecy reliability confusion and stealth"
    - "new results on multiple input multiple output broadcast channels with confidential messages"

Connected through hyperedge HE-4 (induced by source paper "secure degrees of freedom of multi user networks one time pads in the air via alignment"):
  with members:
    - "secure degrees of freedom of one hop wireless networks"
    - "real interference alignment exploiting the potential of single antenna systems"
    - "secure degrees of freedom of the gaussian wiretap channel with helpers and no eavesdropper csi blind cooperative jamming"
    - "new results on multiple input multiple output broadcast channels with confidential messages"
    - "interference alignment for secrecy"
    - "strongly secure communications over the two way wiretap channel"
    - "on the secure degrees of freedom of the multiple access channel"
    - "ergodic secret alignment"

Connected through hyperedge HE-5 (induced by source paper "individual secrecy for the broadcast channel"):
  with members:
    - "broadcast channels with privacy leakage constraints"
    - "secure multiplex coding with dependent and non uniform multiple messages"
    - "strong secrecy for cooperative broadcast channels"
    - "individual secrecy for broadcast channels with receiver side information"
    - "secrecy capacity region of some classes of wiretap broadcast channels"
    - "capacity regions for broadcast channels with degraded message sets and message cognition under different secrecy constraints"
    - "effective secrecy reliability confusion and stealth"
    - "reliability and secrecy functions of the wiretap channel under cost constraint"

Connected through hyperedge HE-6 (induced by source paper "degraded broadcast channel secrecy outside of a bounded range"):
  with members:
    - "an information theoretic approach to secret sharing"
    - "performance analysis and design of two edge type ldpc codes for the bec wiretap channel"
    - "informational divergence approximations to product distributions"
    - "achieving the secrecy capacity of wiretap channels using polar codes"
    - "strong secrecy from channel resolvability"
    - "secrecy capacity of a class of broadcast channels with an eavesdropper"
    - "the secrecy rate region of the broadcast channel"
    - "mutual information and minimum mean square error in gaussian channels"

Connected through hyperedge HE-7 (induced by source paper "secure degrees of freedom of one hop wireless networks"):
  with members:
    - "real interference alignment exploiting the potential of single antenna systems"
    - "secure degrees of freedom of the gaussian wiretap channel with helpers and no eavesdropper csi blind cooperative jamming"
    - "interference alignment for secrecy"
    - "mimo wiretap channels with arbitrarily varying eavesdropper channel states"
    - "on the secure degrees of freedom of the multiple access channel"
    - "ergodic secret alignment"
    - "cooperation with an untrusted relay a secrecy perspective"
    - "real interference alignment with real numbers"

Connected through hyperedge HE-8 (induced by source paper "an information theoretic approach to secret sharing"):
  with members:
    - "on the degrees of freedom of the compound mimo broadcast channels with finite states"
    - "the secrecy capacity region of the gaussian mimo multi receiver wiretap channel"
    - "on the compound mimo broadcast channels with confidential messages"

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)