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: "individual secrecy for broadcast channels with receiver side information"
  Abstract: This paper studies the problem of secure communication over the broadcast channel with receiver side information under the lens of individual secrecy constraints. That is, the transmitter wants to send two independent messages to two receivers which have, respectively, the desired message of the other receiver as side information, while keeping the eavesdropper ignorant of each message (i.e., the information leakage from each message to the eavesdropper is made vanishing). Building upon one-time pad, secrecy coding, and broadcasting schemes, achievable rate regions are investigated, and the capacity region for special cases of either a weak or strong eavesdropper (compared to both legitimate receivers) are characterized. Interestingly, the capacity region for the former corresponds to a line and the latter corresponds to a square with missing corners; a phenomenon occurring due to the coupling between user's rates. Moreover, the individual secrecy capacity region is also fully characterized for the case where the eavesdropper's channel is deterministic. In addition to discrete memoryless setup, Gaussian scenarios are studied. For the Gaussian model, in addition to the strong and weak eavesdropper cases, the capacity region is characterized for the low and high SNR regimes when the eavesdropper's channel is stronger than one receiver but weaker than the other. Remarkably, positive secure transmission rates are always guaranteed under the individual secrecy constraint, unlike the case of the joint secrecy constraint (i.e., the information leakage from both messages to the eavesdropper is made vanishing). Thus, this notion of secrecy serves as an appropriate candidate for trading off secrecy level and transmission rate; making secrecy more affordable but still acceptable to the end user.

Connected through hyperedge HE-1 (induced by source paper "vulnerabilities of massive mimo systems to pilot contamination attacks"):
  with members:
    - "optimal transmit antenna selection for massive mimo wiretap channels"
    - "massive mimo has unlimited capacity"
    - "exploiting full duplex receivers for achieving secret communications in multiuser miso networks"
    - "frequency synchronization for uplink massive mimo systems"
    - "linear precoding of data and artificial noise in secure massive mimo systems"
    - "massive mimo ten myths and one critical question"
    - "5g cellular key enabling technologies and research challenges"
    - "physical layer security in massive mimo"

Connected through hyperedge HE-2 (induced by source paper "can marton coding alone ensure individual secrecy"):
  with members:
    - "a simplified coding scheme for the broadcast channel with complementary receiver side information under individual secrecy constraints"
    - "the secure two receiver broadcast channel with one sided receiver side information"
    - "individual secrecy for the broadcast channel"
    - "3 receiver broadcast channels with common and confidential messages"

Connected through hyperedge HE-3 (induced by source paper "a simplified coding scheme for the broadcast channel with complementary receiver side information under individual secrecy constraints"):
  with members:
    - "individual secrecy for the broadcast channel"
    - "brute force searching the typical set and guesswork"
    - "secret key generation using correlated sources and channels"
    - "secrecy via sources and channels"
    - "the wiretap channel with feedback encryption over the channel"
    - "secret communication with feedback"

Connected through hyperedge HE-4 (induced by source paper "the secure two receiver broadcast channel with one sided receiver side information"):
  with members:
    - "a simplified coding scheme for the broadcast channel with complementary receiver side information under individual secrecy constraints"
    - "individual secrecy for the broadcast channel"
    - "3 receiver broadcast channels with common and confidential messages"
    - "discrete memoryless interference and broadcast channels with confidential messages secrecy rate regions"

Connected through hyperedge HE-5 (induced by source paper "exploiting full duplex receivers for achieving secret communications in multiuser miso networks"):
  with members:
    - "individual secrecy for the broadcast channel"
    - "multi objective optimization for robust power efficient and secure full duplex wireless communication systems"
    - "joint design of optimal cooperative jamming and power allocation for linear precoding"
    - "on the degrees of freedom of the mimo wiretap and mimo broadcast channels with unknown eavesdroppers"
    - "improving physical layer secrecy using full duplex jamming receivers"
    - "experiment driven characterization of full duplex wireless systems"
    - "mimo gaussian broadcast channels with confidential and common messages"
    - "capacity region of gaussian mimo broadcast channels with common and confidential messages"

Connected through hyperedge HE-6 (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"
    - "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"
    - "wireless network information flow a deterministic approach"

Connected through hyperedge HE-7 (induced by source paper "capacity regions for broadcast channels with degraded message sets and message cognition under different secrecy constraints"):
  with members:
    - "effective secrecy reliability confusion and stealth"
    - "strong secrecy from channel resolvability"
    - "broadcast capacity region of two phase bidirectional relaying"
    - "multiple access channels with generalized feedback and confidential messages"
    - "the gaussian multiple access wire tap channel"
    - "shannon s secrecy system with informed receivers and its application to systematic coding for wiretapped channels"

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)