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: "kinematic analysis of a new parallel machine tool the orthoglide"
  Abstract: This paper describes a new parallel kinematic architecture for machining applications: the orthoglide. This machine features three fixed parallel linear joints which are mounted orthogonally and a mobile platform which moves in the Cartesian x-y-z space with fixed orientation. The main interest of the orthoglide is that it takes benefit from the advantages of the popular PPP serial machines (regular Cartesian workspace shape and uniform performances) as well as from the parallel kinematic arrangement of the links (less inertia and better dynamic performances), which makes the orthoglide well suited to high-speed machining applications. Possible extension of the orthoglide to 5-axis machining is also investigated.

Connected through hyperedge HE-1 (induced by source paper "navaro ii a novel scissor based planar parallel robot"):
  with members:
    - "kinetostatic performance of a planar parallel mechanism with variable actuation"
    - "moveability and collision analysis for fully parallel manipulators"

Connected through hyperedge HE-2 (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"
    - "kinematics and workspace analysis of a three axis parallel manipulator the orthoglide"
    - "design strategies for the geometric synthesis of orthoglide type mechanisms"

Connected through hyperedge HE-3 (induced by source paper "comparison of planar parallel manipulator architectures based on a multi objective design optimization approach"):
  with members:
    - "stiffness analysis of overconstrained parallel manipulators"

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"
    - "kinematics and workspace analysis of a three axis parallel manipulator the orthoglide"
    - "a comparative study of parallel kinematic architectures for machining applications"
    - "design strategies for the geometric synthesis of orthoglide type mechanisms"

Connected through hyperedge HE-5 (induced by source paper "path placement optimization of manipulators based on energy consumption application to the orthoglide 3 axis"):
  with members:
    - "stiffness analysis of overconstrained parallel manipulators"
    - "architecture optimization of a 3 dof translational parallel mechanism for machining applications the orthoglide"
    - "parametric stiffness analysis of the orthoglide"

Connected through hyperedge HE-6 (induced by source paper "calibration of 3 d o f translational parallel manipulators using leg observations"):
  with members:
    - "kinematics and workspace analysis of a three axis parallel manipulator the orthoglide"
    - "kinematic calibration of orthoglide type mechanisms"
    - "a comparative study of parallel kinematic architectures for machining applications"
    - "design strategies for the geometric synthesis of orthoglide type mechanisms"

Connected through hyperedge HE-7 (induced by source paper "a vision based computed torque control for parallel kinematic machines"):
  with members:
    - "kinematics and workspace analysis of a three axis parallel manipulator the orthoglide"

Connected through hyperedge HE-8 (induced by source paper "design strategies for the geometric synthesis of orthoglide type mechanisms"):
  with members:
    - "architecture optimization of a 3 dof translational parallel mechanism for machining applications the orthoglide"
    - "kinematics and workspace analysis of a three axis parallel manipulator the orthoglide"
    - "a comparative study of parallel kinematic architectures for machining applications"
    - "the orthoglide kinematics and workspace analysis"
    - "workspace analysis of the orthoglide using interval analysis"

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)