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: "a decidable subclass of finitary programs"
  Abstract: Answer set programming - the most popular problem solving paradigm based on logic programs - has been recently extended to support uninterpreted function symbols. All of these approaches have some limitation. In this paper we propose a class of programs called FP2 that enjoys a different trade-off between expressiveness and complexity. FP2 programs enjoy the following unique combination of properties: (i) the ability of expressing predicates with infinite extensions; (ii) full support for predicates with arbitrary arity; (iii) decidability of FP2 membership checking; (iv) decidability of skeptical and credulous stable model reasoning for call-safe queries. Odd cycles are supported by composing FP2 programs with argument restricted programs.

Connected through hyperedge HE-1 (induced by source paper "constraint answer set programming without grounding"):
  with members:
    - "constraint answer set solver ezcsp and why integration schemas matter"
    - "computing stable models of normal logic programs without grounding"
    - "clingcon the next generation"

Connected through hyperedge HE-2 (induced by source paper "asperix a first order forward chaining approach for answer set computing"):
  with members:
    - "the third open answer set programming competition"
    - "asp modulo csp the clingcon system"
    - "disjunctive asp with functions decidable queries and effective computation"
    - "the dlv system for knowledge representation and reasoning"
    - "graphs and colorings for answer set programming"

Connected through hyperedge HE-3 (induced by source paper "automata for infinite argumentation structures"):
  with members:
    - "afra argumentation framework with recursive attacks"
    - "on finitely recursive programs"
    - "the dlv system for knowledge representation and reasoning"
    - "defeasible logic programming an argumentative approach"

Connected through hyperedge HE-4 (induced by source paper "language asp f with arithmetic expressions and consistency restoring rules"):
  with members:
    - "functional answer set programming"
    - "stable models and an alternative logic programming paradigm"

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.AI(Artificial Intelligence)