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 "clique width and directed width measures for answer set programming"):
  Abstract: Disjunctive Answer Set Programming (ASP) is a powerful declarative programming paradigm whose main decision problems are located on the second level of the polynomial hierarchy. Identifying tractable fragments and developing efficient algorithms for such fragments are thus important objectives in order to complement the sophisticated ASP systems available to date. Hard problems can become tractable if some problem parameter is bounded by a fixed constant; such problems are then called fixed-parameter tractable (FPT). While several FPT results for ASP exist, parameters that relate to directed or signed graphs representing the program at hand have been neglected so far. In this paper, we first give some negative observations showing that directed width measures on the dependency graph of a program do not lead to FPT results. We then consider the graph parameter of signed clique-width and present a novel dynamic programming algorithm that is FPT w.r.t. this parameter. Clique-width is more general than the well-known treewidth, and, to the best of our knowledge, ours is the first FPT algorithm for bounded clique-width for reasoning problems beyond SAT.

Includes members:
  Member "directed width measures and monotonicity of directed graph searching":
    also connected through other hyperedges:
      (none)
  Member "a trichotomy for regular simple path queries on graphs":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "regular expressions with backreferences polynomial time matching techniques")
  Member "digraph complexity measures and applications in formal language theory":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "width parameterizations for knot free vertex deletion on digraphs")
  Member "backdoors to tractable answer set programming":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "structural decompositions of epistemic logic programs")
  Member "trichotomy and dichotomy results on the complexity of reasoning with disjunctive logic programs":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "inconsistency proofs for asp the asp drupe format")
  Member "fixed parameter complexity of semantics for logic programs":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "structural decompositions of epistemic logic programs")
  Member "a hierarchy of tractable subsets for computing stable models":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "a paraconsistent asp like language with tractable model generation")

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.AI(Artificial Intelligence)