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: "efficient enumeration of solutions produced by closure operations"
  Abstract: In this paper we address the problem of generating all elements obtained by the saturation of an initial set by some operations. More precisely, we prove that we can generate the closure by polymorphisms of a boolean relation with a polynomial delay. This implies for instance that we can compute with polynomial delay the closure of a family of sets by any set of "set operations" (e.g. by union, intersection, difference, symmetric difference$\dots$). To do so, we prove that for any set of operations $\mathcal{F}$, one can decide in polynomial time whether an elements belongs to the closure by $\mathcal{F}$ of a family of sets. When the relation is over a domain larger than two elements, our generic enumeration method fails for some cases, since the associated decision problem is $NP$-hard and we provide an alternative algorithm.

Connected through hyperedge HE-1 (induced by source paper "neighborhood inclusions for minimal dominating sets enumeration linear and polynomial delay algorithms in p_7 free and p_8 free chordal graphs"):
  with members:
    - "a complexity theory for hard enumeration problems"
    - "a polynomial delay algorithm for enumerating minimal dominating sets in chordal graphs"
    - "new results on monotone dualization and generating hypergraph transversals"

Connected through hyperedge HE-2 (induced by source paper "constant delay enumeration for nondeterministic document spanners"):
  with members:
    - "enumeration on trees with tractable combined complexity and efficient updates"
    - "enumeration on trees under relabelings"
    - "constant delay algorithms for regular document spanners"
    - "answering fo mod queries under updates on bounded degree databases"
    - "a circuit based approach to efficient enumeration"
    - "answering conjunctive queries under updates"
    - "document spanners for extracting incomplete information expressiveness and complexity"
    - "joining extractions of regular expressions"

Connected through hyperedge HE-3 (induced by source paper "efficiently enumerating hitting sets of hypergraphs arising in data profiling"):
  with members:
    - "the minimal hitting set generation problem algorithms and computation"
    - "exploiting hidden structure in selecting dimensions that distinguish vectors"
    - "randomised enumeration of small witnesses using a decision oracle"
    - "a polynomial delay algorithm for enumerating minimal dominating sets in chordal graphs"
    - "paradigms for parameterized enumeration"
    - "efficient algorithms for dualizing large scale hypergraphs"
    - "new results on monotone dualization and generating hypergraph transversals"
    - "incremental recompilation of knowledge"

Connected through hyperedge HE-4 (induced by source paper "enumerating minimal dominating sets in k_t free graphs and variants"):
  with members:
    - "enumeration of enumeration algorithms"
    - "output polynomial enumeration on graphs of bounded local linear mim width"
    - "on the enumeration of minimal dominating sets and related notions"
    - "a polynomial delay algorithm for enumerating minimal dominating sets in chordal graphs"
    - "new results on monotone dualization and generating hypergraph transversals"

Connected through hyperedge HE-5 (induced by source paper "enumerating models of dnf faster breaking the dependency on the formula size"):
  with members:
    - "a circuit based approach to efficient enumeration"
    - "output polynomial enumeration on graphs of bounded local linear mim width"
    - "efficient generation of stable planar cages for chemistry"
    - "efficient algorithms for dualizing large scale hypergraphs"

Connected through hyperedge HE-6 (induced by source paper "enumeration in incremental fpt time"):
  with members:
    - "default logic and bounded treewidth"
    - "paradigms for parameterized enumeration"
    - "new results on monotone dualization and generating hypergraph transversals"

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.CC(Computational Complexity)