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: "guarding and searching polyhedra"
  Abstract: We tackle the Art Gallery Problem and the Searchlight Scheduling Problem in 3-dimensional polyhedral environments, putting special emphasis on edge guards and orthogonal polyhedra.

Connected through hyperedge HE-1 (induced by source paper "optimally guarding 2 reflex orthogonal polyhedra by reflex edge guards"):
  with members:
    - "face guarding polyhedra"
    - "hidden mobile guards in simple polygons"

Connected through hyperedge HE-2 (induced by source paper "partitioning strategies and task allocation for target tracking with multiple guards in polygonal environments"):
  with members:
    - "on guarding orthogonal polygons with sliding cameras"
    - "clearing an orthogonal polygon using sliding robots"
    - "multi agent deployment for visibility coverage in polygonal environments with holes"
    - "analysis of dynamic task allocation in multi robot systems"

Connected through hyperedge HE-3 (induced by source paper "face guarding polyhedra"):
  with members:
    - "searching polyhedra by rotating half planes"

Connected through hyperedge HE-4 (induced by source paper "partial searchlight scheduling is strongly pspace complete"):
  with members:
    - "searching polyhedra by rotating half planes"
    - "pspace completeness of sliding block puzzles and other problems through the nondeterministic constraint logic model of computation"

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)