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 semantic framework for preference handling in answer set programming"
  Abstract: We provide a semantic framework for preference handling in answer set programming. To this end, we introduce preference preserving consequence operators. The resulting fixpoint characterizations provide us with a uniform semantic framework for characterizing preference handling in existing approaches. Although our approach is extensible to other semantics by means of an alternating fixpoint theory, we focus here on the elaboration of preferences under answer set semantics. Alternatively, we show how these approaches can be characterized by the concept of order preservation. These uniform semantic characterizations provide us with new insights about interrelationships and moreover about ways of implementation.

Connected through hyperedge HE-1 (induced by source paper "syntax preserving belief change operators for logic programs"):
  with members:
    - "characterization of logic program revision as an extension of propositional revision"
    - "the rise and fall of semantic rule updates based on se models"
    - "a program level approach to revising logic programs under the answer set semantics"
    - "updates in answer set programming an approach based on basic structural properties"
    - "strong equivalence made easy nested expressions and weight constraints"
    - "a framework for compiling preferences in logic programs"
    - "on properties of update sequences based on causal rejection"

Connected through hyperedge HE-2 (induced by source paper "a family of descriptive approaches to preferred answer sets"):
  with members:
    - "computing preferred answer sets by meta interpretation in answer set programming"
    - "a framework for compiling preferences in logic programs"
    - "well founded semantics for extended logic programs with dynamic preferences"

Connected through hyperedge HE-3 (induced by source paper "a framework for compiling preferences in logic programs"):
  with members:
    - "logic programs with compiled preferences"
    - "a compiler for ordered logic programs"
    - "complexity of prioritized default logics"
    - "well founded semantics for extended logic programs with dynamic preferences"

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)