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 "discovering boolean gates in slime mould"):
  Abstract: Slime mould of Physarum polycephalum is a large cell exhibiting rich spatial non-linear electrical characteristics. We exploit the electrical properties of the slime mould to implement logic gates using a flexible hardware platform designed for investigating the electrical properties of a substrate (Mecobo). We apply arbitrary electrical signals to ‘configure’ the slime mould, i.e. change shape of its body and, measure the slime mould’s electrical response. We show that it is possible to find configurations that allow the Physarum to act as any 2-input Boolean gate. The occurrence frequency of the gates discovered in the slime was analysed and compared to complexity hierarchies of logical gates obtained in other unconventional materials. The search for gates was performed by both sweeping across configurations in the real material as well as training a neural network-based model and searching the gates therein using gradient descent.

Includes members:
  Member "slime mould memristors":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "memristors for the curious outsiders")
  Member "practical circuits with physarum wires":
    also connected through other hyperedges:
      (none)
  Member "slime mould logic gates based on frequency changes of electrical potential oscillation":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "applications of multi agent slime mould computing")
  Member "slime mould electronic oscillators":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "thirty eight things to do with live slime mould")
  Member "towards slime mould chemical sensor mapping chemical inputs onto electrical potential dynamics of physarum polycephalum":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "thirty eight things to do with live slime mould")
  Member "towards slime mould colour sensor recognition of colours by physarum polycephalum":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "thirty eight things to do with live slime mould")
  Member "slime mould tactile sensor":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "thirty eight things to do with live slime mould")
  Member "are complex systems hard to evolve":
    also connected through other hyperedges:
      (none)

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.ET(Emerging Technologies)