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: "optimally cutting a surface into a disk"
  Abstract: We consider the problem of cutting a set of edges on a polyhedral manifold surface, possibly with boundary, to obtain a single topological disk, minimizing either the total number of cut edges or their total length. We show that this problem is NP-hard, even for manifolds without boundary and for punctured spheres. We also describe an algorithm with running time n^{O(g+k)}, where n is the combinatorial complexity, g is the genus, and k is the number of boundary components of the input surface. Finally, we describe a greedy algorithm that outputs a O(log^2 g)-approximation of the minimum cut graph in O(g^2 n log n) time.

Connected through hyperedge HE-1 (induced by source paper "obtaining a canonical polygonal schema from a greedy homotopy basis with minimal mesh refinement"):
  with members:
    - "thingi10k a dataset of 10 000 3d printing models"
    - "dynamic generators of topologically embedded graphs"

Connected through hyperedge HE-2 (induced by source paper "minimum cuts in surface graphs"):
  with members:
    - "holiest minimum cost paths and flows in surface graphs"
    - "computational topology and the unique games conjecture"
    - "finding all useless arcs in directed planar graphs"
    - "local flow partitioning for faster edge connectivity"
    - "minor free graphs have light spanners"
    - "minimum cycle and homology bases of surface embedded graphs"
    - "recognizing weakly simple polygons"
    - "fully polynomial time parameterized computations for graphs and matrices of low treewidth"

Connected through hyperedge HE-3 (induced by source paper "almost tight lower bounds for hard cutting problems in embedded graphs"):
  with members:
    - "a framework for eth tight algorithms and lower bounds in geometric intersection graphs"
    - "computational topology of graphs on surfaces"
    - "on subexponential parameterized algorithms for steiner tree and directed subset tsp on planar graphs"
    - "subexponential parameterized algorithms for planar and apex minor free graphs via low treewidth pattern covering"
    - "a near linear approximation scheme for multicuts of embedded graphs with a fixed number of terminals"
    - "the limited blessing of low dimensionality when 1 1 d is the best possible exponent for d dimensional geometric problems"
    - "optimal parameterized algorithms for planar facility location problems using voronoi diagrams"
    - "multicuts in planar and bounded genus graphs with bounded number of terminals"

Connected through hyperedge HE-4 (induced by source paper "a strongly polynomial algorithm for finding a shortest non zero path in group labeled graphs"):
  with members:
    - "a weighted linear matroid parity algorithm"
    - "computational topology of graphs on surfaces"
    - "shortest non trivial cycles in directed and undirected surface graphs"

Connected through hyperedge HE-5 (induced by source paper "holiest minimum cost paths and flows in surface graphs"):
  with members:
    - "minimum cycle and homology bases of surface embedded graphs"
    - "minimum cut of directed planar graphs in o nloglogn time"
    - "faster parametric shortest path and minimum balance algorithms"
    - "all pairs minimum cuts in near linear time for surface embedded graphs"
    - "computing the girth of a planar graph in linear time"
    - "lattices and maximum flow algorithms in planar graphs"
    - "multiple source shortest paths in embedded graphs"
    - "multiple source multiple sink maximum flow in directed planar graphs in near linear time"

Connected through hyperedge HE-6 (induced by source paper "polynomial bounds for centered colorings on proper minor closed graph classes"):
  with members:
    - "experimental evaluation of counting subgraph isomorphisms in classes of bounded expansion"
    - "on space efficiency of algorithms working on structural decompositions of graphs"
    - "planar subgraph isomorphism revisited"
    - "subgraph isomorphism in planar graphs and related problems"

Connected through hyperedge HE-7 (induced by source paper "computational topology of graphs on surfaces"):
  with members:
    - "untangling planar curves"
    - "shortest path embeddings of graphs on surfaces"
    - "a direct proof of the strong hanani tutte theorem on the projective plane"
    - "minimum cycle and homology bases of surface embedded graphs"
    - "crossing number is hard for kernelization"
    - "computing the geometric intersection number of curves"
    - "how to walk your dog in the mountains with no magic leash"
    - "beyond the euler characteristic approximating the genus of general graphs"

Connected through hyperedge HE-8 (induced by source paper "minimum cuts and shortest cycles in directed planar graphs via noncrossing shortest paths"):
  with members:
    - "minimum cut of directed planar graphs in o nloglogn time"
    - "submatrix maximum queries in monge matrices are equivalent to predecessor search"
    - "computing the girth of a planar graph in linear time"
    - "structured recursive separator decompositions for planar graphs in linear time"
    - "algorithmic applications of baur strassen s theorem shortest cycles diameter and matchings"
    - "shortest non trivial cycles in directed and undirected surface graphs"
    - "shortest paths in planar graphs with real lengths in o n log 2n log log n time"
    - "minimum cuts in near linear time"

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)