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 "stiffness modeling of non perfect parallel manipulators"):
  Abstract: The paper focuses on the stiffness modeling of parallel manipulators composed of non-perfect serial chains, whose geometrical parameters differ from the nominal ones. In these manipulators, there usually exist essential internal forces/torques that considerably affect the stiffness properties and also change the end-effector location. These internal load-ings are caused by elastic deformations of the manipulator ele-ments during assembling, while the geometrical errors in the chains are compensated for by applying appropriate forces. For this type of manipulators, a non-linear stiffness modeling tech-nique is proposed that allows us to take into account inaccuracy in the chains and to aggregate their stiffness models for the case of both small and large deflections. Advantages of the developed technique and its ability to compute and compensate for the compliance errors caused by different factors are illustrated by an example that deals with parallel manipulators of the Or-thoglide family

Includes members:
  Member "cartesian stiffness matrix of manipulators with passive joints analytical approach":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "stiffness matrix of manipulators with passive joints computational aspects")
  Member "enhanced stiffness modeling of manipulators with passive joints":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "advancement of msa technique for stiffness modeling of serial and parallel robotic manipulators")
  Member "stiffness analysis of overconstrained parallel manipulators":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "cad based approach for identification of elasto static parameters of robotic manipulators")
  Member "accuracy improvement for stiffness modeling of parallel manipulators":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "cad based approach for identification of elasto static parameters of robotic manipulators")
  Member "architecture optimization of a 3 dof translational parallel mechanism for machining applications the orthoglide":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "a translational three degrees of freedom parallel mechanism with partial motion decoupling and analytic direct kinematics")
  Member "parametric stiffness analysis of the orthoglide":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "cad based approach for identification of elasto static parameters of robotic 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)