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: "the finite harmonic oscillator and its associated sequences"
  Abstract: A system of functions (signals) on the finite line, called the oscillator system, is described and studied. Applications of this system for discrete radar and digital communication theory are explained. #R##N#Keywords: Weil representation, commutative subgroups, eigenfunctions, random behavior, deterministic construction

Connected through hyperedge HE-1 (induced by source paper "low coherence frames from group fourier matrices"):
  with members:
    - "group frames with few distinct inner products and low coherence"

Connected through hyperedge HE-2 (induced by source paper "statistical rip and semi circle distribution of incoherent dictionaries"):
  with members:
    - "deterministic designs with deterministic guarantees toeplitz compressed sensing matrices sequence designs and system identification"
    - "on some deterministic dictionaries supporting sparsity"
    - "the finite harmonic oscillator and its applications to sequences communication and radar"
    - "efficient compressed sensing using lossless expander graphs with fast bilateral quantum recovery algorithm"
    - "on the diagonalization of the discrete fourier transform"

Connected through hyperedge HE-3 (induced by source paper "application of the weil representation diagonalization of the discrete fourier transform"):
  with members:
    - "on some deterministic dictionaries supporting sparsity"
    - "on the diagonalization of the discrete fourier transform"

Connected through hyperedge HE-4 (induced by source paper "the statistical restricted isometry property and the wigner semicircle distribution of incoherent dictionaries"):
  with members:
    - "incoherent dictionaries and the statistical restricted isometry property"
    - "deterministic designs with deterministic guarantees toeplitz compressed sensing matrices sequence designs and system identification"
    - "efficient and robust compressed sensing using high quality expander graphs"
    - "on some deterministic dictionaries supporting sparsity"
    - "the finite harmonic oscillator and its applications to sequences communication and radar"
    - "efficient compressed sensing using lossless expander graphs with fast bilateral quantum recovery algorithm"
    - "on the diagonalization of the discrete fourier transform"

Connected through hyperedge HE-5 (induced by source paper "incoherent dictionaries and the statistical restricted isometry property"):
  with members:
    - "deterministic designs with deterministic guarantees toeplitz compressed sensing matrices sequence designs and system identification"
    - "on some deterministic dictionaries supporting sparsity"
    - "the finite harmonic oscillator and its applications to sequences communication and radar"
    - "efficient compressed sensing using lossless expander graphs with fast bilateral quantum recovery algorithm"

Connected through hyperedge HE-6 (induced by source paper "on the diagonalization of the discrete fourier transform"):
  with members:
    - "on some deterministic dictionaries supporting sparsity"
    - "the finite harmonic oscillator and its applications to sequences communication and radar"

Connected through hyperedge HE-7 (induced by source paper "the discrete fourier transform a canonical basis of eigenfunctions"):
  with members:
    - "on the diagonalization of the discrete fourier transform"

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)