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: "kinematics and workspace analysis of a three axis parallel manipulator the orthoglide"
  Abstract: The paper addresses kinematic and geometrical aspects of the Orthoglide, a three-DOF parallel mechanism. This machine consists of three fixed linear joints, which are mounted orthogonally, three identical legs and a mobile platform, which moves in the Cartesian x-y-z space with fixed orientation. New solutions to solve inverse/direct kinematics are proposed and we perform a detailed workspace and singularity analysis, taking into account specific joint limit constraints.

Connected through hyperedge HE-1 (induced by source paper "kinematic analysis and trajectory planning of the orthoglide 5 axis"):
  with members:
    - "kinematic and dynamic analyses of the orthoglide 5 axis"
    - "stiffness analysis of 3 d o f overconstrained translational parallel manipulators"
    - "a six degree of freedom haptic device based on the orthoglide and a hybrid agile eye"
    - "kinematic analysis of a new parallel machine tool the orthoglide"
    - "design strategies for the geometric synthesis of orthoglide type mechanisms"

Connected through hyperedge HE-2 (induced by source paper "an algebraic method to check the singularity free paths for parallel robots"):
  with members:
    - "non singular assembly mode changing trajectories in the workspace for the 3 rps parallel robot"
    - "uniqueness domains and non singular assembly mode changing trajectories"
    - "on the determination of cusp points of 3 rpr parallel manipulators"
    - "an interval analysis based study for the design and the comparison of 3 dof parallel kinematic machines"
    - "an exhaustive study of the workspace topologies of all 3r orthogonal manipulators with geometric simplifications"

Connected through hyperedge HE-3 (induced by source paper "workspace and singularity analysis of a delta like family robot"):
  with members:
    - "non singular assembly mode changing trajectories in the workspace for the 3 rps parallel robot"
    - "uniqueness domains and non singular assembly mode changing trajectories"
    - "an interval analysis based study for the design and the comparison of 3 dof parallel kinematic machines"
    - "an exhaustive study of the workspace topologies of all 3r orthogonal manipulators with geometric simplifications"

Connected through hyperedge HE-4 (induced by source paper "kinematic calibration of orthoglide type mechanisms from observation of parallel leg motions"):
  with members:
    - "architecture optimization of a 3 dof translational parallel mechanism for machining applications the orthoglide"
    - "a comparative study of parallel kinematic architectures for machining applications"
    - "kinematic analysis of a new parallel machine tool the orthoglide"
    - "design strategies for the geometric synthesis of orthoglide type mechanisms"

Connected through hyperedge HE-5 (induced by source paper "stiffness analysis of overconstrained parallel manipulators"):
  with members:
    - "architecture optimization of a 3 dof translational parallel mechanism for machining applications the orthoglide"
    - "the design of parallel kinematic machine tools using kinetostatic performance criteria"
    - "parametric stiffness analysis of the orthoglide"
    - "design strategies for the geometric synthesis of orthoglide type mechanisms"

Connected through hyperedge HE-6 (induced by source paper "design optimization of parallel manipulators for high speed precision machining applications"):
  with members:
    - "stiffness analysis of overconstrained parallel manipulators"
    - "architecture optimization of a 3 dof translational parallel mechanism for machining applications the orthoglide"

Connected through hyperedge HE-7 (induced by source paper "dynamics of the orthoglide parallel robot"):
  with members:
    - "architecture optimization of a 3 dof translational parallel mechanism for machining applications the orthoglide"
    - "design strategies for the geometric synthesis of orthoglide type mechanisms"

Connected through hyperedge HE-8 (induced by source paper "calibration of 3 d o f translational parallel manipulators using leg observations"):
  with members:
    - "kinematic calibration of orthoglide type mechanisms"
    - "a comparative study of parallel kinematic architectures for machining applications"
    - "kinematic analysis of a new parallel machine tool the orthoglide"
    - "design strategies for the geometric synthesis of orthoglide type mechanisms"

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.RO(Robotics)