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: "computing the number of induced copies of a fixed graph in a bounded degree graph"
  Abstract: In this paper we show that for any graph $H$ of order $m$ and any graph $G$ of order $n$ and maximum degree $\Delta$ one can compute the number of subsets $S$ of $V(G)$ that induces a graph isomorphic to $H $in time $O(c^m\cdot n)$ for some constant $c = c(\Delta) > 0$. This is essentially best possible.

Connected through hyperedge HE-1 (induced by source paper "detecting and counting small patterns in planar graphs in subexponential parameterized time"):
  with members:
    - "homomorphisms are a good basis for counting small subgraphs"
    - "subexponential parameterized algorithms for planar and apex minor free graphs via low treewidth pattern covering"
    - "counting matchings with k unmatched vertices in planar graphs"
    - "approximating the partition function of planar two state spin systems"
    - "on triangulating k outerplanar graphs"
    - "approximate counting via correlation decay on planar graphs"
    - "beyond bidimensionality parameterized subexponential algorithms on directed graphs"
    - "planar subgraph isomorphism revisited"

Connected through hyperedge HE-2 (induced by source paper "statistical physics approaches to unique games"):
  with members:
    - "a deterministic algorithm for counting colorings with 2 delta colors"
    - "deterministic search for cnf satisfying assignments in almost polynomial time"
    - "algorithmic pirogov sinai theory"
    - "mixing of the glauber dynamics for the ferromagnetic potts model"
    - "ferromagnetic potts model refined bis hardness and related results"
    - "spectral algorithms for unique games"
    - "how to play unique games on expanders"

Connected through hyperedge HE-3 (induced by source paper "algorithmic pirogov sinai theory"):
  with members:
    - "algorithms for bis hard problems on expander graphs"
    - "the ising partition function zeros and deterministic approximation"
    - "inapproximability of the independent set polynomial in the complex plane"
    - "bis hardness for 2 spin systems on bipartite bounded degree graphs in the tree non uniqueness region"
    - "inapproximability of the partition function for the antiferromagnetic ising and hard core models"
    - "random cluster dynamics for the ising model is rapidly mixing"
    - "computing the independence polynomial from the tree threshold down to the roots"
    - "fptas for bis with degree bounds on one side"

Connected through hyperedge HE-4 (induced by source paper "a fixed parameter perspective on bis"):
  with members:
    - "homomorphisms are a good basis for counting small subgraphs"
    - "bis hardness for 2 spin systems on bipartite bounded degree graphs in the tree non uniqueness region"
    - "fptas for bis with degree bounds on one side"
    - "complexity of counting subgraphs only the boundedness of the vertex cover number counts"
    - "ferromagnetic potts model refined bis hardness and related results"

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)