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: "gabriel triangulations and angle monotone graphs local routing and recognition"
  Abstract: A geometric graph is angle-monotone if every pair of vertices has a path between them that---after some rotation---is $x$- and $y$-monotone. Angle-monotone graphs are $\sqrt 2$-spanners and they are increasing-chord graphs. Dehkordi, Frati, and Gudmundsson introduced angle-monotone graphs in 2014 and proved that Gabriel triangulations are angle-monotone graphs. We give a polynomial time algorithm to recognize angle-monotone geometric graphs. We prove that every point set has a plane geometric graph that is generalized angle-monotone---specifically, we prove that the half-$\theta_6$-graph is generalized angle-monotone. We give a local routing algorithm for Gabriel triangulations that finds a path from any vertex $s$ to any vertex $t$ whose length is within $1 + \sqrt 2$ times the Euclidean distance from $s$ to $t$. Finally, we prove some lower bounds and limits on local routing algorithms on Gabriel triangulations.

Connected through hyperedge HE-1 (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"
    - "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"
    - "self approaching graphs"
    - "euclidean greedy drawings of trees"
    - "succinct greedy geometric routing in the euclidean plane"

Connected through hyperedge HE-2 (induced by source paper "simplified emanation graphs a sparse plane spanner with steiner points"):
  with members:
    - "a new approach to graphmaps a system browsing large graphs as interactive maps"
    - "graphmaps browsing large graphs as interactive maps"
    - "increasing chord graphs on point sets"

Connected through hyperedge HE-3 (induced by source paper "local routing in sparse and lightweight geometric graphs"):
  with members:
    - "optimal local routing on delaunay triangulations defined by empty equilateral triangles"
    - "the stretch factor of the delaunay triangulation is less than 1 998"

Connected through hyperedge HE-4 (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"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"

Connected through hyperedge HE-5 (induced by source paper "angle monotone graphs construction and local routing"):
  with members:
    - "angle monotone paths in non obtuse triangulations"
    - "optimal local routing on delaunay triangulations defined by empty equilateral triangles"
    - "increasing chord graphs on point sets"
    - "on the stretch factor of convex delaunay graphs"

Connected through hyperedge HE-6 (induced by source paper "exploring increasing chord paths and trees"):
  with members:
    - "rooted uniform monotone minimum spanning trees"
    - "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"
    - "self approaching graphs"

Connected through hyperedge HE-7 (induced by source paper "angle monotone paths in non obtuse triangulations"):
  with members:
    - "rooted uniform monotone minimum spanning trees"
    - "unfolding convex polyhedra via radially monotone cut trees"
    - "increasing chord graphs on point sets"

Connected through hyperedge HE-8 (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"
    - "on monotone drawings of trees"
    - "on self approaching and increasing chord 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"

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)