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: "ultimate periodicity of b recognisable sets a quasilinear procedure"
  Abstract: It is decidable if a set of numbers, whose representation in a base b is a regular language, is ultimately periodic. This was established by Honkala in 1986. #R##N#We give here a structural description of minimal automata that accept an ultimately periodic set of numbers. We then show that it can verified in linear time if a given minimal automaton meets this description. #R##N#This thus yields a O(n log(n)) procedure for deciding whether a general deterministic automaton accepts an ultimately periodic set of numbers.

Connected through hyperedge HE-1 (induced by source paper "minimal automaton for multiplying and translating the thue morse set"):
  with members:
    - "state complexity of the multiples of the thue morse set"
    - "enumeration and decidable properties of automatic sequences"
    - "the growth function of s recognizable sets"
    - "periodicity repetitions and orbits of an automatic sequence"
    - "minimal dfa for testing divisibility"

Connected through hyperedge HE-2 (induced by source paper "state complexity of the multiples of the thue morse set"):
  with members:
    - "enumeration and decidable properties of automatic sequences"
    - "the growth function of s recognizable sets"
    - "periodicity repetitions and orbits of an automatic sequence"
    - "minimal dfa for testing divisibility"

Connected through hyperedge HE-3 (induced by source paper "an efficient algorithm to decide periodicity of b recognisable sets using lsdf convention"):
  with members:
    - "enumeration and decidable properties of automatic sequences"
    - "periodicity repetitions and orbits of an automatic sequence"

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)