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 "architecture optimization of a 3 dof translational parallel mechanism for machining applications the orthoglide"):
  Abstract: This paper addresses the architecture optimization of a 3-DOF translational parallel mechanism designed for machining applications. The design optimization is conducted on the basis of a prescribed Cartesian workspace with prescribed kinetostatic performances. The resulting machine, the Orthoglide, 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 interesting features of the Orthoglide are a regular Cartesian workspace shape, uniform performances in all directions and good compactness. A small-scale prototype of the Orthoglide under development is presented at the end of this paper.

Includes members:
  Member "design of a 3 axis parallel machine tool for high speed machining the orthoglide":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "a translational three degrees of freedom parallel mechanism with partial motion decoupling and analytic direct kinematics")
  Member "a comparative study of parallel kinematic architectures for machining applications":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "a translational three degrees of freedom parallel mechanism with partial motion decoupling and analytic direct kinematics")
  Member "kinematic analysis of a new parallel machine tool the orthoglide":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "navaro ii a novel scissor based planar parallel robot")
  Member "workspace analysis of the orthoglide using interval analysis":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "a translational three degrees of freedom parallel mechanism with partial motion decoupling and analytic direct kinematics")

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)