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: "what does a conditional knowledge base entail"
  Abstract: This paper presents a logical approach to nonmonotonic reasoning based on the notion of a nonmonotonic consequence relation. A conditional knowledge base, consisting of a set of conditional assertions of the type "if ... then ...", represents the explicit defeasible knowledge an agent has about the way the world generally behaves. We look for a plausible definition of the set of all conditional assertions entailed by a conditional knowledge base. In a previous paper, S. Kraus and the authors defined and studied "preferential" consequence relations. They noticed that not all preferential relations could be considered as reasonable inference procedures. This paper studies a more restricted class of consequence relations, "rational" relations. It is argued that any reasonable nonmonotonic inference procedure should define a rational relation. It is shown that the rational relations are exactly those that may be represented by a "ranked" preferential model, or by a (non-standard) probabilistic model. The rational closure of a conditional knowledge base is defined and shown to provide an attractive answer to the question of the title. Global properties of this closure operation are proved: it is a cumulative operation. It is also computationally tractable. This paper assumes the underlying language is propositional.

Connected through hyperedge HE-1 (induced by source paper "a reconstruction of the multipreference closure"):
  with members:
    - "reasoning about exceptions in ontologies from the lexicographic closure to the skeptical closure"
    - "reasoning about multiple aspects in dls semantics and closure construction"
    - "analytic tableaux calculi for klm logics of nonmonotonic reasoning"
    - "another perspective on default reasoning"
    - "nonmonotonic reasoning preferential models and cumulative logics"
    - "plausibility measures and default reasoning"

Connected through hyperedge HE-2 (induced by source paper "elementary iterated revision and the levi identity"):
  with members:
    - "on strengthening the logic of iterated belief revision proper ordinal interval operators"
    - "extending the harper identity to iterated belief change"
    - "admissible and restrained revision"
    - "another perspective on default reasoning"
    - "the lexicographic closure as a revision process"

Connected through hyperedge HE-3 (induced by source paper "theoretical foundations of defeasible description logics"):
  with members:
    - "the complexity of circumscription in description logic"
    - "analytic tableaux calculi for klm logics of nonmonotonic reasoning"
    - "another perspective on default reasoning"
    - "nonmonotonic reasoning preferential models and cumulative logics"

Connected through hyperedge HE-4 (induced by source paper "a description logic framework for commonsense conceptual combination integrating typicality probabilities and cognitive heuristics"):
  with members:
    - "amnestic forgery an ontology of conceptual metaphors"
    - "rational closure in shiq"
    - "concepts and their dynamics a quantum theoretic modeling of human thought"
    - "the complexity of circumscription in description logic"
    - "another perspective on default reasoning"

Connected through hyperedge HE-5 (induced by source paper "defeasible reasoning in ℛℰℒ from rational entailment to rational closure"):
  with members:
    - "asp for minimal entailment in a rational extension of sroel"
    - "optimizing the computation of overriding"
    - "defeasible inclusions in low complexity dls"
    - "the complexity of circumscription in description logic"
    - "nonmonotonic reasoning preferential models and cumulative logics"

Connected through hyperedge HE-6 (induced by source paper "reasoning about exceptions in ontologies from the lexicographic closure to the skeptical closure"):
  with members:
    - "reasoning about multiple aspects in dls semantics and closure construction"
    - "defeasible inclusions in low complexity dls"
    - "the complexity of circumscription in description logic"
    - "nonmonotonic reasoning preferential models and cumulative logics"

Connected through hyperedge HE-7 (induced by source paper "on rational entailment for propositional typicality logic"):
  with members:
    - "theoretical foundations of defeasible description logics"
    - "analytic tableaux calculi for klm logics of nonmonotonic reasoning"
    - "another perspective on default reasoning"
    - "nonmonotonic reasoning preferential models and cumulative logics"

Connected through hyperedge HE-8 (induced by source paper "reasoning about multiple aspects in dls semantics and closure construction"):
  with members:
    - "defeasible inclusions in low complexity dls"
    - "the complexity of circumscription in description logic"
    - "another perspective on default reasoning"

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)