human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "on the complexity of minimum link path problems"):
  Abstract: We revisit the minimum-link path problem: Given a polyhedral domain and two points in it, connect the points by a polygonal path with minimum number of edges. We consider settings where the vertices and/or the edges of the path are restricted to lie on the boundary of the domain, or can be in its interior. Our results include bit complexity bounds, a novel general hardness construction, and a polynomial-time approximation scheme. We fully characterize the situation in 2 dimensions, and provide first results in dimensions 3 and higher for several variants of the problem.  Concretely, our results resolve several open problems. We prove that computing the minimum-link diffuse reflection path, motivated by ray tracing in computer graphics, is NP-hard, even for two-dimensional polygonal domains with holes. This has remained an open problem [Ghosh et al.'2012] despite a large body of work on the topic. We also resolve the open problem from [Mitchell et al.'1992] mentioned in the handbook [Goodman and Rourke'2004] (see Chapter 27.5, Open problem 3) and The Open Problems Project [http://maven.smith.edu/~orourke/TOPP/] (see Problem 22): "What is the complexity of the minimum-link path problem in 3-space?" Our results imply that the problem is NP-hard even on terrains (and hence, due to discreteness of the answer, there is no FPTAS unless P=NP), but admits a PTAS.

Includes members:
  Member "region based approximation of probability distributions for visibility between imprecise points among obstacles":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "peeling potatoes near optimally in near linear time")
  Member "minimum link paths revisited":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "geometric secluded paths and planar satisfiability")
  Member "face guarding polyhedra":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "optimally guarding 2 reflex orthogonal polyhedra by reflex edge guards")
  Member "an algorithm for computing constrained reflection paths in simple polygon":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "diffuse reflection radius in a simple polygon")
  Member "terrain visibility with multiple viewpoints":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "altitude terrain guarding and guarding uni monotone polygons")

Question: Please tell me which class the source paper 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)