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: "on a generalization of nemhauser and trotter s local optimization theorem"
  Abstract: Fellows, Guo, Moser and Niedermeier 14 proved a generalization of Nemhauser and Trotter's theorem, which applies to d-Bounded-Degree Vertex Deletion (to delete k vertices of the input graph to make the maximum degree of it źd) and gives a linear-vertex kernel for d = 0 and 1, and a superlinear-vertex kernel for each d ź 2 for the problem parameterized by k. It is still left as an open problem whether this parameterized problem admits a linear-vertex kernel for each d ź 3 . In this paper, we refine the generalized Nemhauser and Trotter's theorem and give a linear-vertex kernel for each d ź 0 . We prove a generalization of Nemhauser and Trotter's local optimization theorem.We obtain the first linear kernel for d-Bounded-Degree Vertex Deletion parameterized by the deletion size k for each fixed d ź 3 .We obtain the first linear kernel for d-Star Packing parameterized by the packing size k for each fixed d ź 3 .

Connected through hyperedge HE-1 (induced by source paper "linear kernels for separating a graph into components of bounded size"):
  with members:
    - "deleting edges to restrict the size of an epidemic a new application for treewidth"
    - "on the computational complexity of vertex integrity and component order connectivity"
    - "minimum bisection is fixed parameter tractable"
    - "minimum k way cut of bounded size is fixed parameter tractable"
    - "finding small separators in linear time via treewidth reduction"
    - "hitting forbidden minors approximation and kernelization"
    - "multicut is fpt"
    - "fixed parameter tractability of multicut parameterized by the size of the cutset"

Connected through hyperedge HE-2 (induced by source paper "kernelization and parameterized algorithms for 3 path vertex cover"):
  with members:
    - "a parameterized algorithm for bounded degree vertex deletion"
    - "a generalization of nemhauser and trotter s local optimization theorem"

Connected through hyperedge HE-3 (induced by source paper "a parameterized algorithm for bounded degree vertex deletion"):
  with members:
    - "a generalization of nemhauser and trotter s local optimization theorem"

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)