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: "recognizability versus solvability of promise problems in finite classical and quantum automata framework"
  Abstract: In pioneering papers \cite{ESY84,Gh06}, the concept of the {\em promise problems} was introduced and started to be systematically explored. It has been argued that promise problems should be seen as partial {\em decision problems} and as such that they are more fundamental than decision problems and formal languages that used to be considered as the basic ones for complexity theory issues explorations. Moreover, both of the above papers explored and summarized \cite{Gh06} in some depth and systematically, promise problems in the context of the theory of the main computational complexity classes as well as in the context of cracking of the public key cryptography. #R##N#In the present paper a variety of issues is explored concerning dealing with the promise problems on the level of finite, classical, quantum and also semi-quantum automata. Two acceptance modes, {\em recognizability} and {\em solvability} are introduced and their basic properties are explored. This is also to capture and explore the case that even in the case the promise is simple (say regular), its disjoint subsets for so called yes and no cases do not have to be so. In addition, some results concerning descriptional complexity impacts on outcomes of some operations on promise problems are shown as well as the significant power of quantum versions of classical automata is demonstrated when dealing with some promise problems.

Connected through hyperedge HE-1 (induced by source paper "classical automata on promise problems"):
  with members:
    - "unary probabilistic and quantum automata on promise problems"
    - "the minimum amount of useful space new results and new directions"
    - "potential of quantum finite automata with exact acceptance"
    - "on the state complexity of semi quantum finite automata"
    - "new results on the minimum amount of useful space"
    - "superiority of exact quantum automata for promise problems"
    - "succinctness of two way probabilistic and quantum finite automata"
    - "two way finite automata with quantum and classical states"

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)