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: "planar lombardi drawings for subcubic graphs"
  Abstract: We prove that every planar graph with maximum degree three has a planar drawing in which the edges are drawn as circular arcs that meet at equal angles around every vertex. Our construction is based on the Koebe-Thurston-Andreev circle packing theorem, and uses a novel type of Voronoi diagram for circle packings that is invariant under Moebius transformations, defined using three-dimensional hyperbolic geometry. We also use circle packing to construct planar Lombardi drawings of a special class of 4-regular planar graphs, the medial graphs of polyhedral graphs, and we show that not every 4-regular planar graph has a Lombardi drawing. We have implemented our algorithm for 3-connected planar cubic graphs.

Connected through hyperedge HE-1 (induced by source paper "on smooth orthogonal and octilinear drawings relations complexity and kandinsky drawings"):
  with members:
    - "drawing hv restricted planar graphs"
    - "arc diagrams flip distances and hamiltonian triangulations"
    - "on the total number of bends for planar octilinear drawings"
    - "orthogonal graph drawing with inflexible edges"
    - "planar octilinear drawings with one bend per edge"
    - "smooth orthogonal drawings of planar graphs"
    - "lombardi drawings of graphs"

Connected through hyperedge HE-2 (induced by source paper "lombardi drawings of knots and links"):
  with members:
    - "planar and poly arc lombardi drawings"
    - "smooth orthogonal drawings of planar graphs"
    - "lombardi drawings of graphs"
    - "on a tree and a path with no geometric simultaneous embedding"

Connected through hyperedge HE-3 (induced by source paper "the galois complexity of graph drawing why numerical solutions are ubiquitous for force directed spectral and circle packing drawings"):
  with members:
    - "strict confluent drawing"
    - "a note on the unsolvability of the weighted region shortest path problem"
    - "the graphs of planar soap bubbles"
    - "optimal moebius transformations for information visualization and meshing"

Connected through hyperedge HE-4 (induced by source paper "contact representations of sparse planar graphs"):
  with members:
    - "optimal polygonal representation of planar graphs"
    - "minimum weight triangulation is np hard"
    - "optimal moebius transformations for information visualization and meshing"

Connected through hyperedge HE-5 (induced by source paper "diamond kite adaptive quadrilateral meshing"):
  with members:
    - "the graphs of planar soap bubbles"
    - "well centered triangulation"
    - "algorithms for coloring quadtrees"
    - "quadrilateral meshing by circle packing"
    - "optimal point placement for mesh smoothing"

Connected through hyperedge HE-6 (induced by source paper "balanced circle packings for planar graphs"):
  with members:
    - "strict confluent drawing"
    - "the galois complexity of graph drawing why numerical solutions are ubiquitous for force directed spectral and circle packing drawings"
    - "optimal polygonal representation of planar graphs"
    - "optimal moebius transformations for information visualization and meshing"

Connected through hyperedge HE-7 (induced by source paper "drawing trees with perfect angular resolution and polynomial area"):
  with members:
    - "planar and poly arc lombardi drawings"
    - "the graphs of planar soap bubbles"
    - "pinning balloons with perfect angles and optimal area"
    - "lombardi drawings of graphs"
    - "trees with convex faces and optimal angles"
    - "confluent drawings visualizing non planar diagrams in a planar way"

Connected through hyperedge HE-8 (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"
    - "small grid embeddings of 3 polytopes"
    - "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)