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: "material approximation of data smoothing and spline curves inspired by slime mould"
  Abstract: Using a particle model of Physarum displaying emer- gent morphological adaptation behaviour we demonstrate how a minimal approach to collective material computation may be used to transform and summarise properties of spatially represented datasets. We find that the virtual material relaxes more strongly to high-frequency changes in data which can be used for the smoothing (or filtering) of data by ap- proximating moving average and low-pass filters in 1D datasets. The relaxation and minimisation properties of the model enable the spatial computation of B-spline curves (approximating splines) in 2D datasets. Both clamped and unclamped spline curves, of open and closed shapes, can be represented and the degree of spline curvature corresponds to the relaxation time of the material. The material computation of spline curves also includes novel quasi-mechanical properties including unwind- ing of the shape between control points and a preferential adhesion to longer, straighter paths. Interpolating splines could not directly be ap- proximated due to the formation and evolution of Steiner points at nar- row vertices, but were approximated after rectilinear pre-processing of the source data. This pre-processing was further simplified by transform- ing the original data to contain the material inside the polyline. These exemplar results expand the repertoire of spatially represented uncon- ventional computing devices by demonstrating a simple, collective and distributed approach to data and curve smoothing.

Connected through hyperedge HE-1 (induced by source paper "thirty eight things to do with live slime mould"):
  with members:
    - "on hybrid circuits exploiting thermistive properties of slime mould"
    - "slime mould electronic oscillators"
    - "towards slime mould chemical sensor mapping chemical inputs onto electrical potential dynamics of physarum polycephalum"
    - "bio imitation of mexican migration routes to the usa with slime mould on 3d terrains"
    - "towards slime mould colour sensor recognition of colours by physarum polycephalum"
    - "slime mould tactile sensor"
    - "computation of the travelling salesman problem by a shrinking blob"
    - "on creativity of slime mould"

Connected through hyperedge HE-2 (induced by source paper "applications of multi agent slime mould computing"):
  with members:
    - "a morphological adaptation approach to path planning inspired by slime mould"
    - "quantitative transformation for implementation of adder circuits in physical systems"
    - "approximation of statistical analysis and estimation by morphological adaptation in a model of slime mould"
    - "slime mould inspired generalised voronoi diagrams with repulsive fields"
    - "the emergence and dynamical evolution of complex transport networks from simple low level behaviours"
    - "mechanisms inducing parallel computation in a model of physarum polycephalum transport networks"
    - "representation of shape mediated by environmental stimuli in physarum polycephalum and a multi agent model"
    - "slime mould logic gates based on frequency changes of electrical potential oscillation"

Connected through hyperedge HE-3 (induced by source paper "representation of shape mediated by environmental stimuli in physarum polycephalum and a multi agent model"):
  with members:
    - "approximation of statistical analysis and estimation by morphological adaptation in a model of slime mould"
    - "slime mould inspired generalised voronoi diagrams with repulsive fields"
    - "the emergence and dynamical evolution of complex transport networks from simple low level behaviours"
    - "computation of the travelling salesman problem by a shrinking blob"
    - "slime mould computes planar shapes"

Connected through hyperedge HE-4 (induced by source paper "a morphological adaptation approach to path planning inspired by slime mould"):
  with members:
    - "computation of the travelling salesman problem by a shrinking blob"
    - "physarum machine implementation of a kolmogorov uspensky machine on a biological substrate"

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.ET(Emerging Technologies)