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: "logic programs with propositional connectives and aggregates"
  Abstract: Answer set programming (ASP) is a logic programming paradigm that can be used to solve complex combinatorial search problems. Aggregates are an ASP construct that plays an important role in many applications. Defining a satisfactory semantics of aggregates turned out to be a difficult problem, and in this paper we propose a new approach, based on an analogy between aggregates and propositional connectives. First, we extend the definition of an answer set/stable model to cover arbitrary propositional theories; then we define aggregates on top of them both as primitive constructs and as abbreviations for formulas. Our definition of an aggregate combines expressiveness and simplicity, and it inherits many theorems about programs with nested expressions, such as theorems about strong equivalence and splitting.

Connected through hyperedge HE-1 (induced by source paper "an asp semantics for constraints involving conditional aggregates"):
  with members:
    - "asp core 2 input language format"
    - "hybrid metabolic network completion"
    - "rewriting recursive aggregates in answer set programming back to monotonicity"
    - "vicious circle principle and logic programs with aggregates"
    - "functional answer set programming"
    - "well founded and stable semantics of logic programs with aggregates"

Connected through hyperedge HE-2 (induced by source paper "inconsistency proofs for asp the asp drupe format"):
  with members:
    - "asp core 2 input language format"
    - "shared aggregate sets in answer set programming"
    - "routing driverless transport vehicles in car assembly with answer set programming"
    - "textsf qrat generalizing qrat by a more powerful qbf redundancy property"
    - "efficient certified rat verification"
    - "vicious circle principle and logic programs with aggregates"
    - "team building with answer set programming in the gioia tauro seaport"
    - "detecting inconsistencies in large biological networks with answer set programming"

Connected through hyperedge HE-3 (induced by source paper "exploiting partial knowledge in declarative domain specific heuristics for asp"):
  with members:
    - "the seventh answer set programming competition design and results"
    - "degrees of laziness in grounding effects of lazy grounding strategies on asp solving"
    - "combining answer set programming and domain heuristics for solving hard industrial problems application paper"
    - "asperix a first order forward chaining approach for answer set computing"
    - "clingo asp control preliminary report"
    - "claspfolio 2 advances in algorithm selection for answer set programming"
    - "team building with answer set programming in the gioia tauro seaport"
    - "the dlv system for knowledge representation and reasoning"

Connected through hyperedge HE-4 (induced by source paper "enhancing magic sets with an application to ontological reasoning"):
  with members:
    - "shared aggregate sets in answer set programming"
    - "cautious reasoning in asp via minimal models and unsatisfiable cores"
    - "anytime answer set optimization via unsatisfiable core shrinking"
    - "rewriting recursive aggregates in answer set programming back to monotonicity"
    - "anytime computation of cautious consequences in answer set programming"
    - "vicious circle principle and logic programs with aggregates"
    - "complexity of super coherence problems in asp"
    - "well founded and stable semantics of logic programs with aggregates"

Connected through hyperedge HE-5 (induced by source paper "shared aggregate sets in answer set programming"):
  with members:
    - "asp core 2 input language format"
    - "constraints lazy constraints or propagators in asp solving an empirical analysis"
    - "clingcon the next generation"
    - "combining answer set programming and domain heuristics for solving hard industrial problems application paper"
    - "anytime answer set optimization via unsatisfiable core shrinking"
    - "predicate logic as a modeling language modeling and solving some machine learning and data mining problems with idp3"
    - "complexity and compilation of gz aggregates in answer set programming"
    - "rewriting recursive aggregates in answer set programming back to monotonicity"

Connected through hyperedge HE-6 (induced by source paper "functional asp with intensional sets application to gelfond zhang aggregates"):
  with members:
    - "vicious circle principle and logic programs with aggregates"
    - "functional answer set programming"
    - "well founded and stable semantics of logic programs with aggregates"

Connected through hyperedge HE-7 (induced by source paper "translating lpod and cr prolog2 into standard answer set programs"):
  with members:
    - "a framework for compiling preferences in logic programs"
    - "logic programming with ordered disjunction"

Connected through hyperedge HE-8 (induced by source paper "stepwise debugging of answer set programs"):
  with members:
    - "the dlvhex system for knowledge representation recent advances system description"
    - "kara a system for visualising and visual editing of interpretations for answer set programs"
    - "the sealion has landed an ide for answer set programming preliminary report"
    - "catching the ouroboros on debugging non ground answer set programs"
    - "on elementary loops of logic programs"
    - "justifications for logic programs under answer set semantics"
    - "the dlv system for knowledge representation and reasoning"
    - "extending classical logic with inductive definitions"

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)