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: "self approaching graphs"
  Abstract: In this paper we introduce self-approaching graph drawings. A straight-line drawing of a graph is self-approaching if, for any origin vertex s and any destination vertex t, there is an st-path in the graph such that, for any point q on the path, as a point p moves continuously along the path from the origin to q, the Euclidean distance from p to q is always decreasing. This is a more stringent condition than a greedy drawing (where only the distance between vertices on the path and the destination vertex must decrease), and guarantees that the drawing is a 5.33-spanner. We study three topics: (1) recognizing self-approaching drawings; (2) constructing self-approaching drawings of a given graph; (3) constructing a self-approaching Steiner network connecting a given set of points. We show that: (1) there are e?fficient algorithms to test if a polygonal path is self-approaching in R^2 and R^3, but it is NP-hard to test if a given graph drawing in R^3 has a self-approaching uv-path; (2) we can characterize the trees that have self-approaching drawings; (3) for any given set of terminal points in the plane, we can ?find a linear sized network that has a self-approaching path between any ordered pair of terminals.

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"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"

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"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"
    - "euclidean greedy drawings of trees"
    - "succinct greedy geometric routing in the euclidean plane"

Connected through hyperedge HE-3 (induced by source paper "on the stretch factor of polygonal chains"):
  with members:
    - "self approaching paths in simple polygons"
    - "on range searching with semialgebraic sets ii"
    - "computing a minimum dilation spanning tree is np hard"
    - "beta skeletons have unbounded dilation"

Connected through hyperedge HE-4 (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"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "euclidean greedy drawings of trees"
    - "succinct greedy geometric routing in the euclidean plane"

Connected through hyperedge HE-5 (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"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"

Connected through hyperedge HE-6 (induced by source paper "self approaching paths in simple polygons"):
  with members:
    - "partitioning graph drawings and triangulated simple polygons into greedily routable regions"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"

Connected through hyperedge HE-7 (induced by source paper "on planar greedy drawings of 3 connected planar graphs"):
  with members:
    - "strongly monotone drawings of planar graphs"
    - "drawing planar graphs with many collinear vertices"
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "on monotone drawings of trees"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"
    - "euclidean greedy drawings of trees"
    - "succinct greedy geometric routing in the euclidean plane"

Connected through hyperedge HE-8 (induced by source paper "rooted uniform monotone minimum spanning trees"):
  with members:
    - "optimal monotone drawings of trees"
    - "strongly monotone drawings of planar graphs"
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "on monotone drawings of trees"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"
    - "monotone grid drawings 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)