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: "structure theorem and isomorphism test for graphs with excluded topological subgraphs"
  Abstract: We generalize the structure theorem of Robertson and Seymour for graphs excluding a fixed graph $H$ as a minor to graphs excluding $H$ as a topological subgraph. We prove that for a fixed $H$, every graph excluding $H$ as a topological subgraph has a tree decomposition where each part is either "almost embeddable" to a fixed surface or has bounded degree with the exception of a bounded number of vertices. Furthermore, we prove that such a decomposition is computable by an algorithm that is fixed-parameter tractable with parameter $|H|$. #R##N#We present two algorithmic applications of our structure theorem. To illustrate the mechanics of a "typical" application of the structure theorem, we show that on graphs excluding $H$ as a topological subgraph, Partial Dominating Set (find $k$ vertices whose closed neighborhood has maximum size) can be solved in time $f(H,k)\cdot n^{O(1)}$ time. More significantly, we show that on graphs excluding $H$ as a topological subgraph, Graph Isomorphism can be solved in time $n^{f(H)}$. This result unifies and generalizes two previously known important polynomial-time solvable cases of Graph Isomorphism: bounded-degree graphs and $H$-minor free graphs. The proof of this result needs a generalization of our structure theorem to the context of invariant treelike decomposition.

Connected through hyperedge HE-1 (induced by source paper "hypergraph isomorphism for groups with restricted composition factors"):
  with members:
    - "graph isomorphism in quasipolynomial time parameterized by treewidth"
    - "an improved isomorphism test for bounded tree width graphs"
    - "a faster isomorphism test for graphs of small degree"
    - "a unifying method for the design of algorithms canonizing combinatorial objects"
    - "graph isomorphism for unit square graphs"
    - "graph isomorphism in quasipolynomial time"
    - "graph isomorphism for bounded genus graphs in linear time"
    - "tight lower and upper bounds for the complexity of canonical colour refinement"

Connected through hyperedge HE-2 (induced by source paper "graph isomorphism in quasipolynomial time parameterized by treewidth"):
  with members:
    - "hypergraph isomorphism for groups with restricted composition factors"
    - "an improved isomorphism test for bounded tree width graphs"
    - "a faster isomorphism test for graphs of small degree"
    - "a unifying method for the design of algorithms canonizing combinatorial objects"
    - "minimum circuit size graph isomorphism and related problems"
    - "canonizing graphs of bounded tree width in logspace"
    - "graph isomorphism in quasipolynomial time"
    - "graph isomorphism for bounded genus graphs in linear time"

Connected through hyperedge HE-3 (induced by source paper "canonisation and definability for graphs of bounded rank width"):
  with members:
    - "an improved isomorphism test for bounded tree width graphs"
    - "definable decompositions for graphs of bounded linear cliquewidth"
    - "the weisfeiler leman dimension of planar graphs is at most 3"
    - "computing with tangles"
    - "isomorphism testing for graphs of bounded rank width"
    - "fixed parameter tractable canonization and isomorphism test for graphs of bounded treewidth"
    - "capturing polynomial time on interval graphs"

Connected through hyperedge HE-4 (induced by source paper "an improved isomorphism test for bounded tree width graphs"):
  with members:
    - "towards faster isomorphism tests for bounded degree graphs"
    - "graph isomorphism for unit square graphs"
    - "canonizing graphs of bounded tree width in logspace"
    - "isomorphism testing for graphs of bounded rank width"
    - "reduction techniques for graph isomorphism in the context of width parameters"

Connected through hyperedge HE-5 (induced by source paper "a faster isomorphism test for graphs of small degree"):
  with members:
    - "an improved isomorphism test for bounded tree width graphs"
    - "graph isomorphism in quasipolynomial time"
    - "fixed parameter tractable canonization and isomorphism test for graphs of bounded treewidth"
    - "graph isomorphism for graph classes characterized by two forbidden induced subgraphs"

Connected through hyperedge HE-6 (induced by source paper "model checking for successor invariant first order formulas on graph classes of bounded expansion"):
  with members:
    - "a new perspective on fo model checking of dense graph classes"
    - "the generalised colouring numbers on classes of bounded expansion"
    - "order invariance on decomposable structures"
    - "successor invariant first order logic on graphs with excluded topological subgraphs"
    - "fo model checking of interval graphs"
    - "deciding first order properties of nowhere dense graphs"
    - "lower bounds for the complexity of monadic second order logic"
    - "on brambles grid like minors and parameterized intractability of monadic second order logic"

Connected through hyperedge HE-7 (induced by source paper "turing kernelization for finding long paths in graph classes excluding a topological minor"):
  with members:
    - "turing kernelization for finding long paths and cycles in restricted graph classes"
    - "exploring the complexity of layout parameters in tournaments and semi complete digraphs"
    - "a polynomial turing kernel for weighted independent set in bull free graphs"
    - "characterizing the easy to find subgraphs from the viewpoint of polynomial time algorithms kernels and turing kernels"
    - "minimum bisection is fixed parameter tractable"
    - "kernelization lower bounds by cross composition"

Connected through hyperedge HE-8 (induced by source paper "topological containment of the 5 clique minus an edge in 4 connected graphs"):
  with members:
    - "graphs with no 7 wheel subdivision"

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.DS(Data Structures and Algorithms)