human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "a signal space distance measure for nondispersive optical fiber"):
  Abstract: The nondispersive per-sample channel model for the optical fiber channel is considered. Under certain smoothness assumptions, the problem of finding the minimum amount of noise energy that can render two different input points indistinguishable is formulated. Using the machinery of optimal control theory, necessary conditions that describe the minimum-energy noise trajectories are stated as a system of nonlinear differential equations. This minimum energy is taken as a distance measure. The problem of designing signal constellations with the largest minimum distance subject to a peak power constraint is formulated as a clique finding problem. As an example, a 16-point constellations is designed and compared with the conventional quadrature amplitude modulation. Based on the control-theoretic viewpoint of this paper, a new decoding scheme for such nonlinear channels is proposed.

Includes members:
  Member "towards a non stochastic information theory":
    also connected through other hyperedges:
      (none)
  Member "autocorrelation function for dispersion free fiber channels with distributed amplification":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "the log log growth of channel capacity for nondispersive nonlinear optical fiber channel in intermediate power range extension of the model")
  Member "fast numerical nonlinear fourier transforms":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "efficient nonlinear fourier transform algorithms of order four on equispaced grid")
  Member "upper bound on the capacity of the nonlinear schr odinger channel":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "capacity lower bounds of the noncentral chi channel with applications to soliton amplitude modulation")
  Member "information transmission using the nonlinear fourier transform part iii spectrum modulation":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "dual polarization nonlinear fourier transform based optical communication system")
  Member "design of apsk constellations for coherent optical channels with nonlinear phase noise":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "convolutionally coded snr adaptive transmission for low latency communications")
  Member "a nonstochastic information theory for communication and state estimation":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "noiseless privacy")
  Member "optimizing constellations for single subcarrier intensity modulated optical systems":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "a two dimensional signal space for intensity modulated channels")

Question: Please tell me which class the source paper 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)