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: "dynamic active constraints for surgical robots using vector field inequalities"
  Abstract: Robotic assistance allows surgeons to perform dexterous and tremor-free procedures, but robotic aid is still underrepresented in procedures with constrained workspaces, such as deep brain neurosurgery and endonasal surgery. In these procedures, surgeons have restricted vision to areas near the surgical tooltips, which increases the risk of unexpected collisions between the shafts of the instruments and their surroundings. In this paper, our vector-field-inequalities method is extended to provide dynamic active-constraints to any number of robots and moving objects sharing the same workspace. The method is evaluated with experiments and simulations in which robot tools have to avoid collisions autonomously and in real-time, in a constrained endonasal surgical environment. Simulations show that with our method the combined trajectory error of two robotic systems is optimal. Experiments using a real robotic system show that the method can autonomously prevent collisions between the moving robots themselves and between the robots and the environment. Moreover, the framework is also successfully verified under teleoperation with tool–tissue interactions.

Connected through hyperedge HE-1 (induced by source paper "single shot pose estimation of surgical robot instruments shafts from monocular endoscopic images"):
  with members:
    - "implicit 3d orientation learning for 6d object detection from rgb images"
    - "a unified framework for the teleoperation of surgical robots in constrained workspaces"
    - "ssd 6d making rgb based 3d detection and 6d pose estimation great again"
    - "inception v4 inception resnet and the impact of residual connections on learning"
    - "ssd single shot multibox detector"
    - "real time 3d tracking of articulated tools for robotic surgery"

Connected through hyperedge HE-2 (induced by source paper "dq robotics a library for robot modeling and control using dual quaternion algebra"):
  with members:
    - "whole body control with self collision avoidance using vector field inequalities"
    - "pose consensus based on dual quaternion algebra with application to decentralized formation control of mobile manipulators"

Connected through hyperedge HE-3 (induced by source paper "virtual fixture assistance for suturing in robot aided pediatric endoscopic surgery"):
  with members:
    - "a unified framework for the teleoperation of surgical robots in constrained workspaces"

Connected through hyperedge HE-4 (induced by source paper "a unified framework for the teleoperation of surgical robots in constrained workspaces"):
  with members:
    - "active constraints using vector field inequalities for surgical robots"

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)