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: "datalog rewritability of disjunctive datalog programs and its applications to ontology reasoning"
  Abstract: We study the problem of rewriting a disjunctive datalog program into plain datalog. We show that a disjunctive program is rewritable if and only if it is equivalent to a linear disjunctive program, thus providing a novel characterisation of datalog rewritability. Motivated by this result, we propose weakly linear disjunctive datalog---a novel rule-based KR language that extends both datalog and linear disjunctive datalog and for which reasoning is tractable in data complexity. We then explore applications of weakly linear programs to ontology reasoning and propose a tractable extension of OWL 2 RL with disjunctive axioms. Our empirical results suggest that many non-Horn ontologies can be reduced to weakly linear programs and that query answering over such ontologies using a datalog engine is feasible in practice.

Connected through hyperedge HE-1 (induced by source paper "a complete classification of the complexity and rewritability of ontology mediated queries based on the description logic el"):
  with members:
    - "a dichotomy theorem for nonuniform csps"
    - "the proof of csp dichotomy conjecture"
    - "rewritability in monadic disjunctive datalog mmsnp and expressive description logics"
    - "n permutability and linear datalog implies symmetric datalog"
    - "linear datalog and bounded path duality of relational structures"

Connected through hyperedge HE-2 (induced by source paper "ontology mediated queries combined complexity and succinctness of rewritings via circuit complexity"):
  with members:
    - "the complexity of ontology based data access with owl 2 ql and bounded treewidth queries"
    - "theoretically optimal datalog rewritings for owl 2 ql ontology mediated queries"
    - "tree like queries in owl 2 ql succinctness and complexity results"
    - "sound complete and minimal ucq rewriting for existential rules"
    - "ontology based data access a study through disjunctive datalog csp and mmsnp"
    - "exponential lower bounds and separation for query rewriting"
    - "rewriting ontological queries into small nonrecursive datalog programs"
    - "description logic tboxes model theoretic characterizations and rewritability"

Connected through hyperedge HE-3 (induced by source paper "computing horn rewritings of description logics ontologies"):
  with members:
    - "ontology based data access a study through disjunctive datalog csp and mmsnp"
    - "computing datalog rewritings beyond horn ontologies"
    - "description logic tboxes model theoretic characterizations and rewritability"
    - "the dl lite family and relations"
    - "a knowledge compilation map"

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)