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: "completely reachable automata"
  Abstract: We present a few results and several open problems concerning complete deterministic finite automata in which every non-empty subset of the state set occurs as the image of the whole state set under the action of a suitable input word.

Connected through hyperedge HE-1 (induced by source paper "on completely reachable automata and subset reachability"):
  with members:
    - "complexity of preimage problems for deterministic finite automata"
    - "improving the upper bound on the length of the shortest reset word"
    - "on the interplay between babai and v c ern y s conjectures"
    - "reachability of consensus and synchronizing automata"
    - "subset synchronization and careful synchronization of binary finite automata"
    - "on the synchronizing probability function and the triple rendezvous time for synchronizing automata"
    - "subset synchronization of transitive automata"
    - "a note on a recent attempt to improve the pin frankl bound"

Connected through hyperedge HE-2 (induced by source paper "a characterization of completely reachable automata"):
  with members:
    - "on completely reachable automata and subset reachability"
    - "on the interplay between babai and v c ern y s conjectures"
    - "reset complexity of ideal languages"

Connected through hyperedge HE-3 (induced by source paper "synchronization problems in automata without non trivial cycles"):
  with members:
    - "improving the upper bound on the length of the shortest reset word"
    - "finding short synchronizing words for prefix codes"
    - "subset synchronization in monotonic automata"
    - "approximating the maximum number of synchronizing states in automata"
    - "primitive sets of nonnegative matrices and synchronizing automata"
    - "subset synchronization and careful synchronization of binary finite automata"
    - "subset synchronization of transitive automata"
    - "strong inapproximability of the shortest reset word"

Connected through hyperedge HE-4 (induced by source paper "extending word problems in deterministic finite automata"):
  with members:
    - "improving the upper bound on the length of the shortest reset word"
    - "synchronizing automata with extremal properties"
    - "subset synchronization of transitive automata"
    - "a note on a recent attempt to improve the pin frankl bound"
    - "strong inapproximability of the shortest reset word"
    - "on two algorithmic problems about synchronizing automata"
    - "on the probability of being synchronizable"
    - "modifying the upper bound on the length of minimal synchronizing word"

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.FL(Formal Languages and Automata Theory)