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 "hankel matrices for weighted visibly pushdown automata"):
  Abstract: Hankel matrices (aka connection matrices) of word functions and graph parameters have wide applications in automata theory, graph theory, and machine learning. We give a characterization of real-valued functions on nested words recognized by weighted visibly pushdown automata in terms of Hankel matrices on nested words. This complements C. Mathissen's characterization in terms of weighted monadic second order logic.

Includes members:
  Member "on the complexity of equivalence and minimisation for q weighted automata":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "minimisation of multiplicity tree automata")
  Member "weighted automata and monadic second order logic":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "connection matrices and the definability of graph parameters")
  Member "measuring and synthesizing systems in probabilistic environments":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "strategy representation by decision trees with linear classifiers")
  Member "weighted logics for nested words and algebraic formal power series":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "nested weighted automata")
  Member "probabilistic weighted automata":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "nested weighted automata")
  Member "a spectral algorithm for learning hidden markov models":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "combining offline models and online monte carlo tree search for planning from scratch")
  Member "first order and temporal logics for nested words":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "model checking the interval way")

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.FL(Formal Languages and Automata Theory)