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: "quadrilateral meshing by circle packing"
  Abstract: We use circle-packing methods to generate quadrilateral meshes for polygonal domains, with guaranteed bounds both on the quality and the number of elements. We show that these methods can generate meshes of several types: (1) the elements form the cells of a Voronoi diagram, (2) all elements have two opposite right angles, (3) all elements are kites, or (4) all angles are at most 120 degrees. In each case the total number of elements is O(n), where n is the number of input vertices.

Connected through hyperedge HE-1 (induced by source paper "diamond kite adaptive quadrilateral meshing"):
  with members:
    - "planar lombardi drawings for subcubic graphs"
    - "the graphs of planar soap bubbles"
    - "well centered triangulation"
    - "algorithms for coloring quadtrees"
    - "optimal point placement for mesh smoothing"

Connected through hyperedge HE-2 (induced by source paper "computational geometry column 44"):
  with members:
    - "hinged kite mirror dissection"
    - "hinged dissection of polyominoes and polyforms"

Connected through hyperedge HE-3 (induced by source paper "small strictly convex quadrilateral meshes of point sets"):
  with members:
    - "linear complexity hexahedral mesh generation"

Connected through hyperedge HE-4 (induced by source paper "connectivity compression for irregular quadrilateral meshes"):
  with members:
    - "compact encodings of planar graphs via canonical orderings and multiple parentheses"
    - "linear time succinct encodings of planar graphs via canonical orderings"

Connected through hyperedge HE-5 (induced by source paper "emerging challenges in computational topology"):
  with members:
    - "linear complexity hexahedral mesh generation"

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)