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: "on self approaching and increasing chord drawings of 3 connected planar graphs"
  Abstract: An $st$-path in a drawing of a graph is self-approaching if during the traversal of the corresponding curve from $s$ to any point $t'$ on the curve the distance to $t'$ is non-increasing. A path has increasing chords if it is self-approaching in both directions. A drawing is self-approaching (increasing-chord) if any pair of vertices is connected by a self-approaching (increasing-chord) path. #R##N#We study self-approaching and increasing-chord drawings of triangulations and 3-connected planar graphs. We show that in the Euclidean plane, triangulations admit increasing-chord drawings, and for planar 3-trees we can ensure planarity. We prove that strongly monotone (and thus increasing-chord) drawings of trees and binary cactuses require exponential resolution in the worst case, answering an open question by Kindermann et al. [GD'14]. Moreover, we provide a binary cactus that does not admit a self-approaching drawing. Finally, we show that 3-connected planar graphs admit increasing-chord drawings in the hyperbolic plane and characterize the trees that admit such drawings.

Connected through hyperedge HE-1 (induced by source paper "drawing graphs as spanners"):
  with members:
    - "on plane constrained bounded degree spanners"
    - "optimal monotone drawings of trees"
    - "strongly monotone drawings of planar graphs"
    - "on planar greedy drawings of 3 connected planar graphs"
    - "on monotone drawings of trees"
    - "lower bounds on the dilation of plane spanners"
    - "recognition and complexity of point visibility graphs"
    - "increasing chord graphs on point sets"

Connected through hyperedge HE-2 (induced by source paper "on the area requirements of planar greedy drawings of triconnected planar graphs"):
  with members:
    - "angle monotone paths in non obtuse triangulations"
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "on planar greedy drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"
    - "self approaching graphs"
    - "euclidean greedy drawings of trees"
    - "succinct greedy geometric routing in the euclidean plane"

Connected through hyperedge HE-3 (induced by source paper "drawing planar graphs with few segments on a polynomial grid"):
  with members:
    - "drawing planar graphs with few geometric primitives"
    - "drawing graphs on few circles and few spheres"
    - "experimental analysis of the accessibility of drawings with few segments"
    - "optimal monotone drawings of trees"
    - "the complexity of drawing graphs on few lines and few planes"
    - "strongly monotone drawings of planar graphs"
    - "drawing graphs on few lines and few planes"
    - "on monotone drawings of trees"

Connected through hyperedge HE-4 (induced by source paper "morphing contact representations of graphs"):
  with members:
    - "upward planar morphs"
    - "optimal morphs of planar orthogonal drawings"
    - "square contact representations of partial 2 trees and triconnected simply nested graphs"
    - "how to morph planar graph drawings"
    - "optimal morphs of convex drawings"

Connected through hyperedge HE-5 (induced by source paper "uniform 2d monotone minimum spanning graphs"):
  with members:
    - "angle monotone graphs construction and local routing"
    - "drawing a rooted tree as a rooted y monotone minimum spanning tree"
    - "simple compact monotone tree drawings"
    - "angle monotone paths in non obtuse triangulations"
    - "optimal monotone drawings of trees"
    - "rooted uniform monotone minimum spanning trees"
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "increasing chord graphs on point sets"

Connected through hyperedge HE-6 (induced by source paper "greedy rectilinear drawings"):
  with members:
    - "solving linear programs in the current matrix multiplication time"
    - "on planar greedy drawings of 3 connected planar graphs"
    - "self approaching graphs"
    - "euclidean greedy drawings of trees"
    - "succinct greedy geometric routing in the euclidean plane"

Connected through hyperedge HE-7 (induced by source paper "exploring increasing chord paths and trees"):
  with members:
    - "rooted uniform monotone minimum spanning trees"
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "partitioning graph drawings and triangulated simple polygons into greedily routable regions"
    - "increasing chord graphs on point sets"
    - "self approaching graphs"

Connected through hyperedge HE-8 (induced by source paper "self approaching paths in simple polygons"):
  with members:
    - "partitioning graph drawings and triangulated simple polygons into greedily routable regions"
    - "increasing chord graphs on point sets"
    - "self approaching 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)