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 "nimbro robots winning robocup 2018 humanoid adultsize soccer competitions"):
  Abstract: Over the past few years, the Humanoid League rules have changed towards more realistic and challenging game environments, which encourage teams to advance their robot soccer performances. In this paper, we present the software and hardware designs that led our team NimbRo to win the competitions in the AdultSize league -- including the soccer tournament, the drop-in games, and the technical challenges at RoboCup 2018 in Montreal. Altogether, this resulted in NimbRo winning the Best Humanoid Award. In particular, we describe our deep-learning approaches for visual perception and our new fully 3D printed robot NimbRo-OP2X.

Includes members:
  Member "grown up nimbro robots winning robocup 2017 humanoid adultsize soccer competitions":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "robocup 2019 adultsize winner nimbro deep learning perception in walk kick push recovery and team play capabilities")
  Member "hierarchical and state based architectures for robot behavior planning and control":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "child sized 3d printed igus humanoid open platform")
  Member "fused angles a representation of body orientation for balance":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "nimbro op2x adult sized open source 3d printed humanoid robot")
  Member "omnidirectional bipedal walking with direct fused angle feedback mechanisms":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "robocup 2019 adultsize winner nimbro deep learning perception in walk kick push recovery and team play capabilities")
  Member "robocup 2016 humanoid teensize winner nimbro robust visual perception and soccer behaviors":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "grown up nimbro robots winning robocup 2017 humanoid adultsize soccer competitions")
  Member "a monocular vision system for playing soccer in low color information environments":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "utilizing temporal information in deep convolutional network for efficient soccer ball detection and tracking")
  Member "nimbro op2x adult sized open source 3d printed humanoid robot":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "utilizing temporal information in deep convolutional network for efficient soccer ball detection and tracking")
  Member "combining simulations and real robot experiments for bayesian optimization of bipedal gait stabilization":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "nimbro op2x adult sized open source 3d printed humanoid robot")

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)