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 common view on strong uniform and other notions of equivalence in answer set programming"
  Abstract: Logic programming under the answer-set semantics nowadays deals with numerous different notions of program equivalence. This is due to the fact that equivalence for substitution (known as strong equivalence) and ordinary equivalence are different concepts. The former holds, given programs P and Q, iff P can be faithfully replaced by Q within any context R, while the latter holds iff P and Q provide the same output, that is, they have the same answer sets. Notions in between strong and ordinary equivalence have been introduced as theoretical tools to compare incomplete programs and are defined by either restricting the syntactic structure of the considered context programs R or by bounding the set A of atoms allowed to occur in R (relativized equivalence).For the latter approach, different A yield properly different equivalence notions, in general. For the former approach, however, it turned out that any ``reasonable'' syntactic restriction to R coincides with either ordinary, strong, or uniform equivalence. In this paper, we propose a parameterization for equivalence notions which takes care of both such kinds of restrictions simultaneously by bounding, on the one hand, the atoms which are allowed to occur in the rule heads of the context and, on the other hand, the atoms which are allowed to occur in the rule bodies of the context. We introduce a general semantical characterization which includes known ones as SE-models (for strong equivalence) or UE-models (for uniform equivalence) as special cases. Moreover,we provide complexity bounds for the problem in question and sketch a possible implementation method. #R##N#To appear in Theory and Practice of Logic Programming (TPLP).

Connected through hyperedge HE-1 (induced by source paper "inlining external sources in answer set programs"):
  with members:
    - "a model building framework for answer set programming with external computations"
    - "rewriting recursive aggregates in answer set programming back to monotonicity"
    - "conflict driven asp solving with external sources"
    - "asp modulo csp the clingcon system"
    - "a knowledge compilation map"

Connected through hyperedge HE-2 (induced by source paper "strong equivalence and program s structure in arguing essential equivalence between logic programs"):
  with members:
    - "abstract gringo"
    - "first order modular logic programs and their conservative extensions"
    - "lpopt a rule optimization tool for answer set programming"
    - "modularity aspects of disjunctive stable models"
    - "weight constraints as nested expressions"

Connected through hyperedge HE-3 (induced by source paper "a denotational semantics for equilibrium logic"):
  with members:
    - "the rise and fall of semantic rule updates based on se models"
    - "a general framework for equivalences in answer set programming by countermodels in the logic of here and there"
    - "propositional theories are strongly equivalent to logic programs"
    - "stable models and an alternative logic programming paradigm"

Connected through hyperedge HE-4 (induced by source paper "a general framework for equivalences in answer set programming by countermodels in the logic of here and there"):
  with members:
    - "modularity aspects of disjunctive stable models"
    - "relativized hyperequivalence of logic programs for modular programming"
    - "discovering classes of strongly equivalent logic programs"
    - "propositional theories are strongly equivalent to logic programs"
    - "the dlv system for knowledge representation and reasoning"
    - "semantical characterizations and complexity of equivalences in answer set programming"

Connected through hyperedge HE-5 (induced by source paper "characterising equilibrium logic and nested logic programs reductions and complexity1 2"):
  with members:
    - "embedding non ground logic programs into autoepistemic logic for knowledge base combination"
    - "propositional theories are strongly equivalent to logic programs"
    - "the dlv system for knowledge representation and reasoning"
    - "semantical characterizations and complexity of equivalences in answer set programming"
    - "tight logic programs"
    - "strong equivalence made easy nested expressions and weight constraints"
    - "characterization of strongly equivalent logic programs in intermediate logics"
    - "a polynomial translation of logic programs with nested expressions into disjunctive logic programs preliminary report"

Connected through hyperedge HE-6 (induced by source paper "relativized hyperequivalence of logic programs for modular programming"):
  with members:
    - "modularity aspects of disjunctive stable models"
    - "semantical characterizations and complexity of equivalences in answer set programming"
    - "strong equivalence made easy nested expressions and weight constraints"
    - "characterization of strongly equivalent logic programs in intermediate logics"
    - "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)