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: "enumeration and decidable properties of automatic sequences"
  Abstract: We show that various aspects of k-automatic sequences -- such as having an unbordered factor of length n -- are both decidable and effectively enumerable. As a consequence it follows that many related sequences are either k-automatic or k-regular. These include many sequences previously studied in the literature, such as the recurrence function, the appearance function, and the repetitivity index. We also give some new characterizations of the class of k-regular sequences. Many results extend to other sequences defined in terms of Pisot numeration systems.

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"
    - "ultimate periodicity of b recognisable sets a quasilinear procedure"
    - "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:
    - "ultimate periodicity of b recognisable sets a quasilinear procedure"
    - "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 "prefix palindromic length of the thue morse word"):
  with members:
    - "sturmian numeration systems and decompositions to palindromes"
    - "eertree an efficient data structure for processing palindromes in strings"
    - "a subquadratic algorithm for minimum palindromic factorization"

Connected through hyperedge HE-4 (induced by source paper "automaticity and invariant measures of linear cellular automata"):
  with members:
    - "automatic sequences based on parry or bertrand numeration systems"
    - "automatic theorem proving in walnut"

Connected through hyperedge HE-5 (induced by source paper "abelian square rich words"):
  with members:
    - "maximum number of distinct and nonequivalent nonstandard squares in a word"
    - "words with the maximum number of abelian squares"
    - "cyclic complexity of words"
    - "decision algorithms for fibonacci automatic words with applications to pattern avoidance"
    - "on the number of unbordered factors"
    - "abelian repetitions in sturmian words"
    - "periodicity repetitions and orbits of an automatic sequence"

Connected through hyperedge HE-6 (induced by source paper "sums of palindromes an approach via automata"):
  with members:
    - "on the number of unbordered factors"
    - "primitive words and lyndon words in automatic and linearly recurrent sequences"
    - "periodicity repetitions and orbits of an automatic sequence"

Connected through hyperedge HE-7 (induced by source paper "an efficient algorithm to decide periodicity of b recognisable sets using lsdf convention"):
  with members:
    - "ultimate periodicity of b recognisable sets a quasilinear procedure"
    - "periodicity repetitions and orbits of an automatic sequence"

Connected through hyperedge HE-8 (induced by source paper "automatic theorem proving in walnut"):
  with members:
    - "closed rich privileged trapezoidal and balanced words in automatic sequences"
    - "mechanical proofs of properties of the tribonacci 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)