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: "wyner ziv coding over broadcast channels digital schemes"
  Abstract: This paper addresses lossy transmission of a common source over a broadcast channel when there is correlated side information at the receivers, with emphasis on the quadratic Gaussian and binary Hamming cases. A digital scheme that combines ideas from the lossless version of the problem, i.e., Slepian-Wolf coding over broadcast channels, and dirty paper coding, is presented and analyzed. This scheme uses layered coding where the common layer information is intended for both receivers and the refinement information is destined only for one receiver. For the quadratic Gaussian case, a quantity characterizing the overall quality of each receiver is identified in terms of channel and side information parameters. It is shown that it is more advantageous to send the refinement information to the receiver with "better" overall quality. In the case where all receivers have the same overall quality, the presented scheme becomes optimal. Unlike its lossless counterpart, however, the problem eludes a complete characterization.

Connected through hyperedge HE-1 (induced by source paper "noisy broadcast networks with receiver caching"):
  with members:
    - "the exact rate memory tradeoff for caching with uncoded prefetching"
    - "on the optimality of separation between caching and delivery in general cache networks"
    - "opportunistic content delivery in fading broadcast channels"
    - "cache aided content delivery over erasure broadcast channels"
    - "scalable content delivery with coded caching in multi antenna fading channels"
    - "on coded caching in the overloaded miso broadcast channel"
    - "multi antenna coded caching"
    - "information theoretic caching the multi user case"

Connected through hyperedge HE-2 (induced by source paper "distortion bounds for source broadcast over degraded channel"):
  with members:
    - "a source channel separation theorem with application to the source broadcast problem"
    - "comments on approximate characterizations for the gaussian source broadcast distortion region"
    - "outer bounds on the admissible source region for broadcast channels with correlated sources"
    - "hybrid coding an interface for joint source channel coding and network communication"
    - "achievability proof via output statistics of random binning"
    - "hybrid digital analog codes for source channel broadcast of gaussian sources over gaussian channels"
    - "the achievable distortion region of bivariate gaussian source on gaussian broadcast channel"
    - "on the capacity of the discrete memoryless broadcast channel with feedback"

Connected through hyperedge HE-3 (induced by source paper "distortion bounds for source broadcast problem"):
  with members:
    - "a source channel separation theorem with application to the source broadcast problem"
    - "comments on approximate characterizations for the gaussian source broadcast distortion region"
    - "distortion bounds for source broadcast over degraded channel"
    - "outer bounds on the admissible source region for broadcast channels with correlated sources"
    - "achievability proof via output statistics of random binning"
    - "hybrid digital analog codes for source channel broadcast of gaussian sources over gaussian channels"
    - "on the capacity of the discrete memoryless broadcast channel with feedback"

Connected through hyperedge HE-4 (induced by source paper "achievable rate regions for two way relay channel using nested lattice coding"):
  with members:
    - "lattice coding for the two way two relay channel"
    - "a lattice compress and forward scheme"
    - "lattice codes for the gaussian relay channel decode and forward and compress and forward"
    - "compute and forward harnessing interference through structured codes"
    - "physical layer network coding"
    - "performance bounds for bi directional coded cooperation protocols"

Connected through hyperedge HE-5 (induced by source paper "slepian wolf coding for broadcasting with cooperative base stations"):
  with members:
    - "multi way relay networks orthogonal uplink source channel separation and code design"
    - "offloading in heterogeneous networks modeling analysis and design insights"
    - "rate distortion with side information at many decoders"
    - "broadcast capacity region of two phase bidirectional relaying"

Connected through hyperedge HE-6 (induced by source paper "hybrid coding an interface for joint source channel coding and network communication"):
  with members:
    - "wireless network information flow a deterministic approach"
    - "on the separation of lossy source network coding and channel coding in wireline networks"
    - "communication to within a fidelity criterion over unknown networks by reduction to reliable communication problems over unknown networks"
    - "optimality and approximate optimality of source channel separation in networks"
    - "the achievable distortion region of bivariate gaussian source on gaussian broadcast channel"
    - "correlated sources over broadcast channels"
    - "outer bounds on the admissible source region for broadcast channels with dependent sources"
    - "comments on broadcast channels with arbitrarily correlated sources"

Connected through hyperedge HE-7 (induced by source paper "joint source channel coding with time varying channel and side information"):
  with members:
    - "minimum expected distortion in gaussian source coding with fading side information"
    - "joint source channel coding with correlated interference"
    - "distortion minimization in gaussian layered broadcast coding with successive refinement"
    - "joint source channel coding with side information using hybrid digital analog codes"
    - "on the distortion snr exponent of some layered transmission schemes"
    - "joint source channel codes for mimo block fading channels"

Connected through hyperedge HE-8 (induced by source paper "source coding problems with conditionally less noisy side information"):
  with members:
    - "secure multiterminal source coding with side information at the eavesdropper"
    - "rate distortion with side information at many decoders"
    - "the rate distortion function for product of two sources with side information at decoders"
    - "source coding for a simple network with receiver side information"
    - "side information scalable source coding"
    - "on multistage successive refinement for wyner ziv source coding with degraded side informations"

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)