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: "universal multiparty data exchange and secret key agreement"
  Abstract: Multiple parties observing correlated data seek to recover each other's data and attain omniscience. To that end, they communicate interactively over a noiseless broadcast channel - each bit transmitted over this channel is received by all the parties. We give a universal interactive communication protocol, termed the recursive data exchange protocol (RDE), which attains omniscience for any sequence of data observed by the parties and provide an individual sequence guarantee of performance. As a by-product, for observations of length $n$, we show the universal rate optimality of RDE up to an $\mathcal{O}\left(n^{-\frac 12}\sqrt{\log n}\right)$ term in a generative setting where the data sequence is independent and identically distributed (in time). Furthermore, drawing on the duality between omniscience and secret key agreement due to Csiszar and Narayan, we obtain a universal protocol for generating a multiparty secret key of rate at most $\mathcal{O}\left(n^{-\frac 12}\sqrt{\log n}\right)$ less than the maximum rate possible. A key feature of RDE is its recursive structure whereby when a subset $A$ of parties recover each-other's data, the rates appear as if the parties have been executing the protocol in an alternative model where the parties in $A$ are collocated.

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 "part ii a practical approach for successive omniscience"):
  with members:
    - "part i improving computational efficiency of communication for omniscience"
    - "attaining fairness in communication for omniscience"
    - "improving computational efficiency of communication for omniscience and successive omniscience"
    - "successive local and successive global omniscience"
    - "a practical approach for successive omniscience"
    - "a faster algorithm for asymptotic communication for omniscience"
    - "iterative merging algorithm for cooperative data exchange"
    - "efficient algorithms for the data exchange problem"

Connected through hyperedge HE-3 (induced by source paper "one shot variable length secret key agreement approaching mutual information"):
  with members:
    - "on slepian wolf theorem with interaction"
    - "converses for secret key agreement and secure computing"
    - "secret key agreement general capacity and second order asymptotics"
    - "information equals amortized communication"

Connected through hyperedge HE-4 (induced by source paper "cooperative data exchange based on mds codes"):
  with members:
    - "successive local and successive global omniscience"
    - "cooperative data exchange with unreliable clients"
    - "efficient algorithms for the data exchange problem"
    - "balanced sparsest generator matrices for mds codes"
    - "coded cooperative data exchange in multihop networks"
    - "coded cooperative data exchange problem for general topologies"
    - "on coding for cooperative data exchange"

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)