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 rateless codes from coupled lt codes"
  Abstract: It was recently shown that spatial coupling of individual low-density parity-check codes improves the belief-propagation threshold of the coupled ensemble essentially to the maximum a posteriori threshold of the underlying ensemble. We study the performance of spatially coupled low-density generator-matrix ensembles when used for transmission over binary-input memoryless output-symmetric channels. We show by means of density evolution that the threshold saturation phenomenon also takes place in this setting. Our motivation for studying low-density generator-matrix codes is that they can easily be converted into rateless codes. Although there are already several classes of excellent rateless codes known to date, rateless codes constructed via spatial coupling might offer some additional advantages. In particular, by the very nature of the threshold phenomenon one expects that codes constructed on this principle can be made to be universal, i.e., a single construction can uniformly approach capacity over the class of binary-input memoryless output-symmetric channels. We discuss some necessary conditions on the degree distribution which universal rateless codes based on the threshold phenomenon have to fulfill. We then show by means of density evolution and some simulation results that indeed codes constructed in this way perform very well over a whole range of channel types and channel conditions.

Connected through hyperedge HE-1 (induced by source paper "performance improvement of iterative multiuser detection for large sparsely spread cdma systems by spatial coupling"):
  with members:
    - "iterative multiuser detection and decoding with spatially coupled interleaving"
    - "thresholds of spatially coupled systems via lyapunov s method"
    - "a simple proof of threshold saturation for coupled scalar recursions"
    - "chains of mean field models"
    - "a phenomenological study on threshold improvement via spatial coupling"
    - "wave like solutions of general one dimensional spatially coupled systems"
    - "threshold saturation on channels with memory via spatial coupling"
    - "information theoretically optimal compressed sensing via spatial coupling and approximate message passing"

Connected through hyperedge HE-2 (induced by source paper "threshold saturation for spatially coupled ldpc and ldgm codes on bms channels"):
  with members:
    - "approaching the rate distortion limit with spatial coupling belief propagation and decimation"
    - "threshold saturation in spatially coupled constraint satisfaction problems"
    - "a proof of threshold saturation for spatially coupled ldpc codes on bms channels"
    - "spatial coupling as a proof technique"
    - "a simple proof of threshold saturation for coupled scalar recursions"
    - "spatially coupled ensembles universally achieve capacity under belief propagation"
    - "chains of mean field models"
    - "a phenomenological study on threshold improvement via spatial coupling"

Connected through hyperedge HE-3 (induced by source paper "spatially coupled precoded rateless codes with bounded degree achieve the capacity of bec under bp decoding"):
  with members:
    - "spatially coupled precoded rateless codes"
    - "a simple proof of threshold saturation for coupled scalar recursions"
    - "spatially coupled ensembles universally achieve capacity under belief propagation"
    - "spatially coupled mackay neal codes and hsu anastasopoulos codes"
    - "threshold saturation via spatial coupling why convolutional ldpc ensembles perform so well over the bec"

Connected through hyperedge HE-4 (induced by source paper "approaching the rate distortion limit with spatial coupling belief propagation and decimation"):
  with members:
    - "threshold saturation for spatially coupled ldpc and ldgm codes on bms channels"
    - "threshold saturation in spatially coupled constraint satisfaction problems"
    - "spatial coupling as a proof technique"
    - "a simple proof of threshold saturation for coupled scalar recursions"
    - "spatially coupled ensembles universally achieve capacity under belief propagation"
    - "lossy source coding via spatially coupled ldgm ensembles"
    - "chains of mean field models"
    - "fixed length lossy compression in the finite blocklength regime"

Connected through hyperedge HE-5 (induced by source paper "new codes on graphs constructed by connecting spatially coupled chains"):
  with members:
    - "a proof of threshold saturation for spatially coupled ldpc codes on bms channels"
    - "spatially coupled quasi cyclic quantum ldpc codes"
    - "threshold saturation via spatial coupling why convolutional ldpc ensembles perform so well over the bec"
    - "universality for the noisy slepian wolf problem via spatial coupling"
    - "multiple access demodulation in the lifted signal graph with spatial coupling"
    - "coupled graphical models and their thresholds"
    - "bilayer ldpc convolutional codes for half duplex relay channels"
    - "improvement of bp based cdma multiuser detection by spatial coupling"

Connected through hyperedge HE-6 (induced by source paper "efficient termination of spatially coupled codes"):
  with members:
    - "spatially coupled ensembles universally achieve capacity under belief propagation"
    - "threshold saturation on channels with memory via spatial coupling"
    - "threshold saturation via spatial coupling why convolutional ldpc ensembles perform so well over the bec"
    - "spatially coupled codes over the multiple access channel"
    - "threshold saturation on bms channels via spatial coupling"

Connected through hyperedge HE-7 (induced by source paper "spatially coupled precoded rateless codes"):
  with members:
    - "spatially coupled ensembles universally achieve capacity under belief propagation"
    - "spatially coupled mackay neal codes and hsu anastasopoulos codes"
    - "threshold saturation via spatial coupling why convolutional ldpc ensembles perform so well over the bec"

Connected through hyperedge HE-8 (induced by source paper "spatially coupled ensembles universally achieve capacity under belief propagation"):
  with members:
    - "a simple proof of threshold saturation for coupled scalar recursions"
    - "universal bounds on the scaling behavior of polar codes"
    - "windowed decoding of protograph based ldpc convolutional codes over erasure channels"
    - "chains of mean field models"
    - "a phenomenological study on threshold improvement via spatial coupling"
    - "wave like solutions of general one dimensional spatially coupled systems"
    - "extended extremes of information combining"
    - "threshold saturation on channels with memory via spatial coupling"

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)