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: "small grid embeddings of 3 polytopes"
  Abstract: We introduce an algorithm that embeds a given 3-connected planar graph as a convex 3-polytope with integer coordinates. The size of the coordinates is bounded by O(27.55n )=O(188n ). If the graph contains a triangle we can bound the integer coordinates by O(24.82n ). If the graph contains a quadrilateral we can bound the integer coordinates by O(25.46n ). The crucial part of the algorithm is to find a convex plane embedding whose edges can be weighted such that the sum of the weighted edges, seen as vectors, cancel at every point. It is well known that this can be guaranteed for the interior vertices by applying a technique of Tutte. We show how to extend Tutte’s ideas to construct a plane embedding where the weighted vector sums cancel also on the vertices of the boundary face.

Connected through hyperedge HE-1 (induced by source paper "embedding stacked polytopes on a polynomial size grid"):
  with members:
    - "a duality transform for constructing small grid embeddings of 3d polytopes"
    - "succinct greedy geometric routing in the euclidean plane"

Connected through hyperedge HE-2 (induced by source paper "a duality transform for constructing small grid embeddings of 3d polytopes"):
  with members:
    - "embedding stacked polytopes on a polynomial size grid"

Connected through hyperedge HE-3 (induced by source paper "the graphs of planar soap bubbles"):
  with members:
    - "steinitz theorems for simple orthogonal polyhedra"
    - "drawing trees with perfect angular resolution and polynomial area"
    - "planar lombardi drawings for subcubic graphs"
    - "lombardi drawings of graphs"
    - "steiner trees and spanning trees in six pin soap films"
    - "moebius invariant natural neighbor interpolation"
    - "optimal moebius transformations for information visualization and meshing"

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.CG(Computational Geometry)