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: "decomposition of multiple coverings into more parts"
  Abstract: We prove that for every centrally symmetric convex polygon Q, there exists a constant alpha such that any alpha*k-fold covering of the plane by translates of Q can be decomposed into k coverings. This improves on a quadratic upper bound proved by Pach and Toth (SoCG'07). The question is motivated by a sensor network problem, in which a region has to be monitored by sensors with limited battery lifetime.

Connected through hyperedge HE-1 (induced by source paper "a characterization of visibility graphs for pseudo polygons"):
  with members:
    - "unsolved problems in visibility graphs of points segments and polygons"

Connected through hyperedge HE-2 (induced by source paper "making octants colorful and related covering decomposition problems"):
  with members:
    - "indecomposable coverings with homothetic polygons"
    - "coloring hypergraphs induced by dynamic point sets and bottomless rectangles"
    - "making triangles colorful"
    - "coloring planar homothets and three dimensional hypergraphs"
    - "tight lower bounds for the size of epsilon nets"
    - "improved approximation algorithms for geometric set cover"

Connected through hyperedge HE-3 (induced by source paper "coloring hypergraphs induced by dynamic point sets and bottomless rectangles"):
  with members:
    - "tight lower bounds for the size of epsilon nets"

Connected through hyperedge HE-4 (induced by source paper "set it and forget it approximating the set once strip cover problem"):
  with members:
    - "maximizing barrier coverage lifetime with mobile sensors"
    - "connecting a set of circles with minimum sum of radii"
    - "decomposing coverings and the planar sensor cover problem"
    - "restricted strip covering and the sensor cover problem"
    - "set k cover algorithms for energy efficient monitoring in wireless sensor networks"

Connected through hyperedge HE-5 (induced by source paper "decomposing coverings and the planar sensor cover problem"):
  with members:
    - "restricted strip covering and the sensor cover problem"

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)