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: "caroline an autonomously driving vehicle for urban environments"
  Abstract: The 2007 DARPA Urban Challenge afforded the golden opportunity for the Technische Universit\"at Braunschweig to demonstrate its abilities to develop an autonomously driving vehicle to compete with the world's best competitors. After several stages of qualification, our team CarOLO qualified early for the DARPA Urban Challenge Final Event and was among only eleven teams from initially 89 competitors to compete in the final. We had the ability to work together in a large group of experts, each contributing his expertise in his discipline, and significant organisational, financial and technical support by local sponsors who helped us to become the best non-US team. In this report, we describe the 2007 DARPA Urban Challenge, our contribution "Caroline", the technology and algorithms along with her performance in the DARPA Urban Challenge Final Event on November 3, 2007.

Connected through hyperedge HE-1 (induced by source paper "on using blockchains for safety critical systems"):
  with members:
    - "blockchain based smart contracts a systematic mapping study"
    - "blockchain oriented software engineering challenges and new directions"
    - "design criteria to architect continuous experimentation for self driving vehicles"
    - "an analysis of iso 26262 using machine learning safely in automotive software"
    - "keeping continuous deliveries safe"
    - "the sharing economy for the smart grid"
    - "blockchain in internet of things challenges and solutions"

Connected through hyperedge HE-2 (induced by source paper "from a competition for self driving miniature cars to a standardized experimental platform concept models architecture and evaluation"):
  with members:
    - "autonomous driving 5 years after the urban challenge the anticipatory vehicle as a cyber physical system"
    - "engineering autonomous driving software"
    - "engineering the hardware software interface for robotic platforms a comparison of applied model checking with prolog and alloy"

Connected through hyperedge HE-3 (induced by source paper "engineering autonomous driving software"):
  with members:
    - "software systems engineering process and tools for the development of autonomous driving intelligence"
    - "extensible validation framework for dsls using monticore on the example of coding guidelines"
    - "monticore a framework for the development of textual domain specific languages"

Connected through hyperedge HE-4 (induced by source paper "autonomous driving 5 years after the urban challenge the anticipatory vehicle as a cyber physical system"):
  with members:
    - "engineering autonomous driving software"

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)