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 "on using blockchains for safety critical systems"):
  Abstract: Innovation in the world of today is mainly driven by software. Companies need to continuously rejuvenate their product portfolios with new features to stay ahead of their competitors. For example, recent trends explore the application of blockchains to domains other than finance. This paper analyzes the state-of-the-art for safety-critical systems as found in modern vehicles like self-driving cars, smart energy systems, and home automation focusing on specific challenges where key ideas behind blockchains might be applicable. Next, potential benefits unlocked by applying such ideas are presented and discussed for the respective usage scenario. Finally, a research agenda is outlined to summarize remaining challenges for successfully applying blockchains to safety-critical cyber-physical systems.

Includes members:
  Member "blockchain based smart contracts a systematic mapping study":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "an overview on smart contracts challenges advances and platforms")
  Member "blockchain oriented software engineering challenges and new directions":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "a first look at blockchain based decentralized applications")
  Member "design criteria to architect continuous experimentation for self driving vehicles":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "continuous experimentation for automotive software on the example of a heavy commercial vehicle in daily operation")
  Member "an analysis of iso 26262 using machine learning safely in automotive software":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "importance driven deep learning system testing")
  Member "keeping continuous deliveries safe":
    also connected through other hyperedges:
      (none)
  Member "the sharing economy for the smart grid":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "small scale markets for bilateral resource trading in the sharing economy")
  Member "blockchain in internet of things challenges and solutions":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "security privacy in iot using machine learning blockchain threats countermeasures")
  Member "caroline an autonomously driving vehicle for urban environments":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "from a competition for self driving miniature cars to a standardized experimental platform concept models architecture and evaluation")

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.SE(Software Engineering)