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 graphs as l intersection or l contact graphs"
  Abstract: The L-intersection graphs are the graphs that have a representation as intersection graphs of axis parallel shapes in the plane. A subfamily of these graphs are {L, |, --}-contact graphs which are the contact graphs of axis parallel L, |, and -- shapes in the plane. We prove here two results that were conjectured by Chaplick and Ueckerdt in 2013. We show that planar graphs are L-intersection graphs, and that triangle-free planar graphs are {L, |, --}-contact graphs. These results are obtained by a new and simple decomposition technique for 4-connected triangulations. Our results also provide a much simpler proof of the known fact that planar graphs are segment intersection graphs.

Connected through hyperedge HE-1 (induced by source paper "shorter labeling schemes for planar graphs"):
  with members:
    - "proximity results and faster algorithms for integer programming using the steinitz lemma"
    - "optimal distance labeling schemes for trees"
    - "optimal induced universal graphs and adjacency labeling for trees"
    - "simpler faster and shorter labels for distances in graphs"
    - "sublinear space distance labeling using hubs"
    - "new routing techniques and their applications"
    - "near optimal labeling schemes for nearest common ancestors"

Connected through hyperedge HE-2 (induced by source paper "computing maximum independent set on outerstring graphs and their relatives"):
  with members:
    - "approximating dominating set on intersection graphs of rectangles and l frames"
    - "approximation algorithms for independence and domination on b 1 vpg and b 1 epg graphs"
    - "intersection graphs of rays and grounded segments"
    - "bend bounded path intersection graphs sausages noodles and waffles on a grill"
    - "approximation algorithms for maximum independent set of pseudo disks"
    - "seidel minor permutation graphs and combinatorial properties"

Connected through hyperedge HE-3 (induced by source paper "homothetic triangle representations of planar graphs"):
  with members:
    - "dushnik miller dimension of td delaunay complexes"
    - "computing cartograms with optimal complexity"
    - "optimal polygonal representation of planar graphs"
    - "on touching triangle graphs"

Connected through hyperedge HE-4 (induced by source paper "characterising circular arc contact b_0 vpg graphs"):
  with members:
    - "cpg graphs some structural and hardness results"
    - "forbidden structure characterization of circular arc graphs and a certifying recognition algorithm"
    - "bend bounded path intersection graphs sausages noodles and waffles on a grill"

Connected through hyperedge HE-5 (induced by source paper "cpg graphs some structural and hardness results"):
  with members:
    - "on edge intersection graphs of paths with 2 bends"
    - "equilateral l contact graphs"

Connected through hyperedge HE-6 (induced by source paper "subexponential algorithms for variants of homomorphism problem in string graphs"):
  with members:
    - "finding hitting and packing cycles in subexponential time on unit disk graphs"
    - "independent feedback vertex set for p_5 free graphs"
    - "optimality program in segment and string graphs"
    - "locally constrained homomorphisms on graphs of bounded treewidth and bounded degree"
    - "optimal parameterized algorithms for planar facility location problems using voronoi diagrams"
    - "the dichotomy of list homomorphisms for digraphs"

Connected through hyperedge HE-7 (induced by source paper "approximating minimum dominating set on string graphs"):
  with members:
    - "approximating dominating set on intersection graphs of rectangles and l frames"
    - "optimality program in segment and string graphs"
    - "parameterized domination in circle graphs"

Connected through hyperedge HE-8 (induced by source paper "on bounds on bend number of classes of split and cocomparability graphs"):
  with members:
    - "approximation algorithms for independence and domination on b 1 vpg and b 1 epg graphs"
    - "1 string b_2 vpg representation of planar graphs"

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)