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 "cusp points in the parameter space of degenerate 3 rpr planar parallel manipulators"):
  Abstract: This paper investigates the conditions in the design parameter space for the existence and distribution of the cusp locus for planar parallel manipulators. Cusp points make possible non-singular assembly-mode changing motion, which increases the maximum singularity-free workspace. An accurate algorithm for the determination is proposed amending some imprecisions done by previous existing algorithms. This is combined with methods of Cylindric Algebraic Decomposition, Gr\"obner bases and Discriminant Varieties in order to partition the parameter space into cells with constant number of cusp points. These algorithms will allow us to classify a family of degenerate 3-RPR manipulators.

Includes members:
  Member "uniqueness domains and non singular assembly mode changing trajectories":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "an algebraic method to check the singularity free paths for parallel robots")
  Member "on the determination of cusp points of 3 rpr parallel manipulators":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "an algebraic method to check the singularity free paths for parallel robots")
  Member "kinematic analysis of a class of analytic planar 3 rpr parallel manipulators":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "singular surfaces and cusps in symmetric planar 3 rpr manipulators")
  Member "singular curves in the joint space and cusp points of 3 rpr parallel manipulators":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "kinematic analysis of a class of analytic planar 3 rpr parallel manipulators")
  Member "degeneracy study of the forward kinematics of planar 3 rpr parallel manipulators":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "singular surfaces and cusps in symmetric planar 3 rpr manipulators")

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.RO(Robotics)