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: "updates in answer set programming an approach based on basic structural properties"
  Abstract: We have studied the update operator defined for update sequences by Eiter et al. without tautologies and we have observed that it satisfies an interesting property This property, which we call Weak Independence of Syntax (WIS), is similar to one of the postulates proposed by Alchourron, Gardenfors, and Makinson (AGM); only that in this case it applies to nonmonotonic logic. In addition, we consider other five additional basic properties about update programs and we show that the operator of Eiter et al. satisfies them. This work continues the analysis of the AGM postulates under a refined view that considers nelson logic as a monotonic logic which allows us to expand our understanding of answer sets. Moreover, nelson logic helped us to derive an alternative definition of the operator defined by Eiter et al. avoiding the use of unnecessary extra atoms.

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"
    - "strong equivalence made easy nested expressions and weight constraints"
    - "a semantic framework for preference handling in answer set programming"
    - "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 "exception based knowledge updates"):
  with members:
    - "the rise and fall of semantic rule updates based on se models"
    - "on the evolution of the instance level of dl lite knowledge bases"
    - "splitting and updating hybrid knowledge bases"
    - "an abductive framework for computing knowledge base updates"
    - "strong equivalence made easy nested expressions and weight constraints"
    - "on properties of update sequences based on causal rejection"

Connected through hyperedge HE-3 (induced by source paper "the rise and fall of semantic rule updates based on se models"):
  with members:
    - "splitting and updating hybrid knowledge bases"
    - "a program level approach to revising logic programs under the answer set semantics"
    - "propositional theories are strongly equivalent to logic programs"
    - "an abductive framework for computing knowledge base updates"
    - "strong equivalence made easy nested expressions and weight constraints"
    - "on properties of update sequences based on causal rejection"

Connected through hyperedge HE-4 (induced by source paper "splitting and updating hybrid knowledge bases"):
  with members:
    - "towards closed world reasoning in dynamic open worlds"
    - "an abductive framework for computing knowledge base updates"
    - "strong equivalence made easy nested expressions and weight constraints"
    - "on properties of update sequences based on causal rejection"

Connected through hyperedge HE-5 (induced by source paper "a general approach to belief change in answer set programming"):
  with members:
    - "propositional theories are strongly equivalent to logic programs"
    - "the dlv system for knowledge representation and reasoning"
    - "towards automated integration of guess and check programs in answer set programming a meta interpreter and applications"
    - "strong equivalence made easy nested expressions and weight constraints"
    - "computing preferred answer sets by meta interpretation in answer set programming"
    - "a framework for compiling preferences in logic programs"
    - "on properties of update sequences based on causal rejection"

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.LO(Logic in Computer Science)