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: "distance function wavelets part ii extended results and conjectures"
  Abstract: Report II is concerned with the extended results of distance function wavelets (DFW). The fractional DFW transforms are first addressed relating to the fractal geometry and fractional derivative, and then, the discrete Helmholtz-Fourier transform is briefly presented. The Green second identity may be an alternative devise in developing the theoretical framework of the DFW transform and series. The kernel solutions of the Winkler plate equation and the Burger's equation are used to create the DFW transforms and series. Most interestingly, it is found that the translation invariant monomial solutions of the high-order Laplace equations can be used to make very simple harmonic polynomial DFW series. In most cases of this study, solid mathematical analysis is missing and results are obtained intuitively in the conjecture status.

Connected through hyperedge HE-1 (induced by source paper "distance function wavelets part iii exotic transforms and series"):
  with members:
    - "boundary knot method for laplace and biharmonic problems"
    - "orthonormal rbf wavelet and ridgelet like series and transforms for high dimensional problems"
    - "high order fundamental and general solutions of convection diffusion equation and their applications with boundary particle method"
    - "definitions of distance function in radial basis function approach"

Connected through hyperedge HE-2 (induced by source paper "distance function wavelets part i helmholtz and convection diffusion transforms and series"):
  with members:
    - "orthonormal rbf wavelet and ridgelet like series and transforms for high dimensional problems"
    - "relationship between boundary integral equation and radial basis function"
    - "analytical solution of transient scalar wave and diffusion problems of arbitrary dimensionality and geometry by rbf wavelet series"
    - "errata and supplements to orthonormal rbf wavelet and ridgelet like series and transforms for high dimensional problems"

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.CE(Computational Engineering, Finance, and Science)