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: "informational divergence approximations to product distributions"
  Abstract: The minimum rate needed to accurately approximate a product distribution based on an unnormalized informational divergence is shown to be a mutual information. This result subsumes results of Wyner on common information and Han-Verd\'{u} on resolvability. The result also extends to cases where the source distribution is unknown but the entropy is known.

Connected through hyperedge HE-1 (induced by source paper "communication for generating correlation a unifying survey"):
  with members:
    - "secret key capacity for multipleaccess channel with public feedback"
    - "exact exponent for soft covering"
    - "exact channel synthesis"
    - "strong converse using change of measure arguments"
    - "coding for positive rate in the source model key agreement problem"
    - "wiretap channels nonasymptotic fundamental limits"
    - "channel resolvability theorems for general sources and channels"
    - "strong functional representation lemma and applications to coding theorems"

Connected through hyperedge HE-2 (induced by source paper "communication for generating correlation a survey"):
  with members:
    - "secret key capacity for multipleaccess channel with public feedback"
    - "exact soft covering exponent"
    - "on exact and infty r enyi common informations"
    - "exact channel synthesis"
    - "strong converse using change of measure arguments"
    - "coding for positive rate in the source model key agreement problem"
    - "wiretap channels nonasymptotic fundamental limits"
    - "channel resolvability theorems for general sources and channels"

Connected through hyperedge HE-3 (induced by source paper "key and message semantic security over state dependent channels"):
  with members:
    - "exact soft covering exponent"
    - "wiretap channels with causal state information strong secrecy"
    - "semantically secured message key trade off over wiretap channels with random parameters"
    - "exact random coding secrecy exponents for the wiretap channel"
    - "the likelihood encoder for lossy compression"
    - "secret key generation over noisy channels with common randomness"
    - "arbitrarily varying wiretap channels with type constrained states"
    - "semantic security capacity for wiretap channels of type ii"

Connected through hyperedge HE-4 (induced by source paper "first and second order asymptotics in covert communication"):
  with members:
    - "fundamental limits of communication with low probability of detection"
    - "covert communication over noisy channels a resolvability perspective"
    - "finite blocklength bounds for wiretap channels"
    - "optimal throughput for covert communication over a classical quantum channel"
    - "a stronger soft covering lemma and applications"
    - "information spectrum approach to strong converse theorems for degraded wiretap channels"
    - "strong converse for a degraded wiretap channel via active hypothesis testing"
    - "reliable deniable communication hiding messages in noise"

Connected through hyperedge HE-5 (induced by source paper "resolvability on continuous alphabets"):
  with members:
    - "channel resolvability theorems for general sources and channels"
    - "r enyi resolvability and its applications to the wiretap channel"
    - "mac resolvability first and second order results"
    - "the mac resolvability region semantic security and its operational implications"
    - "soft covering with high probability"
    - "strong converse and second order asymptotics of channel resolvability"
    - "renyi divergence and kullback leibler divergence"
    - "strong secrecy from channel resolvability"

Connected through hyperedge HE-6 (induced by source paper "wiretap and gelfand pinsker channels analogy and its applications"):
  with members:
    - "the likelihood encoder for lossy compression"
    - "wiretap channels with random states non causally available at the encoder"
    - "capacity of the state dependent wiretap channel secure writing on dirty paper"
    - "analogy between gambling and measurement based work extraction"
    - "duality of a source coding problem and the semi deterministic broadcast channel with rate limited cooperation"
    - "semantic security capacity for wiretap channels of type ii"
    - "secrecy capacity region of some classes of wiretap broadcast channels"
    - "on state dependent broadcast channels with cooperation"

Connected through hyperedge HE-7 (induced by source paper "code constructions for physical unclonable functions and biometric secrecy systems"):
  with members:
    - "controllable identifier measurements for private authentication with secret keys"
    - "secure and reliable key agreement with physical unclonable functions"
    - "privacy secrecy and storage with multiple noisy measurements of identifiers"
    - "the likelihood encoder for lossy compression"
    - "polar coding for secret key generation"
    - "secret key generation using correlated sources and channels"
    - "separation of reliability and secrecy in rate limited secret key generation"
    - "achievability proof via output statistics of random binning"

Connected through hyperedge HE-8 (induced by source paper "exact random coding secrecy exponents for the wiretap channel"):
  with members:
    - "secure multiplex coding with dependent and non uniform multiple messages"
    - "soft covering with high probability"
    - "the sender excited secret key agreement model capacity reliability and secrecy exponents"
    - "on the secrecy exponent of the wire tap channel"
    - "exact random coding error exponents of optimal bin index decoding"
    - "effective secrecy reliability confusion and stealth"
    - "tight exponential analysis of universally composable privacy amplification and its applications"
    - "distributed channel synthesis"

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)