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: "on hybrid models of quantum finite automata"
  Abstract: This paper describes several existing hybrid models of QFA in a uniform way.We clarify the relationship between hybrid QFA and some other models.Some results concerning the language recognition power and the equivalence problem of hybrid QFA follow directly in this paper. In the literature, there exist several interesting hybrid models of quantum finite automata (QFA) which have both quantum and classical states. This paper describes these models in a uniform way: a hybrid QFA can be seen as a two-component communication system consisting of a quantum component and a classical one, and the existing hybrid QFA differ from each other mainly in the specific communication pattern: classical-quantum, or quantum-classical, or two-way. We clarify the relationship between these hybrid QFA and some other models; in particular, it is shown that hybrid QFA can be simulated exactly by QFA with general quantum operations. As corollaries, some results in the literature concerning the language recognition power and the equivalence problem of hybrid QFA follow directly from these relationships clarified in this paper.

Connected through hyperedge HE-1 (induced by source paper "lower bounds on the size of semi quantum finite automata"):
  with members:
    - "on the state complexity of semi quantum finite automata"
    - "two way finite automata with quantum and classical states"

Connected through hyperedge HE-2 (induced by source paper "promise problems solved by quantum and classical finite automata"):
  with members:
    - "power of the interactive proof systems with verifiers modeled by semi quantum two way finite automata"
    - "potential of quantum finite automata with exact acceptance"
    - "from quantum query complexity to state complexity"
    - "classical automata on promise problems"
    - "on the state complexity of semi quantum finite automata"
    - "superiority of exact quantum automata for promise problems"
    - "succinctness of two way probabilistic and quantum finite automata"
    - "hierarchy and equivalence of multi letter quantum finite automata"

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)