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: "this far no further introducing virtual borders to mobile robots using a laser pointer"
  Abstract: In this paper, we address the problem of controlling the workspace of a 3-DoF mobile robot. This problem arises due to the emerging coexistence between humans and robots resulting in a shared space. In such an environment, robots should navigate in a human-acceptable way according to the users' demands. For this purpose, we propose a method that gives a non-expert user the possibility to intuitively define virtual borders by means of a laser pointer. In detail, we contribute a method and implementation based on a previously developed framework using a laser pointer as human-robot interface to change the robot's navigational behavior. Furthermore, we extend the framework to increase the flexibility by considering different types of virtual borders, i.e. polygons and curves separating an area. We qualitatively and quantitatively evaluated our method concerning correctness, accuracy and teaching effort. The experimental results revealed a high accuracy and low teaching effort while correctly incorporating the virtual borders into the robot's navigational map.

Connected through hyperedge HE-1 (induced by source paper "interactive restriction of a mobile robot s workspace in a smart home environment"):
  with members:
    - "discovering smart home internet of things privacy norms using contextual integrity"
    - "virtual borders accurate definition of a mobile robot s workspace using augmented reality"
    - "the strands project long term autonomy in everyday environments"
    - "a framework for interactive teaching of virtual borders to mobile robots"

Connected through hyperedge HE-2 (induced by source paper "virtual border teaching using a network robot system"):
  with members:
    - "virtual borders accurate definition of a mobile robot s workspace using augmented reality"

Connected through hyperedge HE-3 (induced by source paper "virtual borders accurate definition of a mobile robot s workspace using augmented reality"):
  with members:
    - "a framework for interactive teaching of virtual borders to mobile robots"
    - "past present and future of simultaneous localization and mapping toward the robust perception age"

Connected through hyperedge HE-4 (induced by source paper "virtual borders accurate definition of a mobile robot s workspace using a rgb d google tango tablet"):
  with members:
    - "a framework for interactive teaching of virtual borders to mobile robots"
    - "past present and future of simultaneous localization and mapping toward the robust perception age"

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)