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: "generalized hypergraph matching via iterated packing and local ratio"
  Abstract: In \(k\)-hypergraph matching, we are given a collection of sets of size at most \(k\), each with an associated weight, and we seek a maximum-weight subcollection whose sets are pairwise disjoint. More generally, in \(k\)-hypergraph \(b\)-matching, instead of disjointness we require that every element appears in at most \(b\) sets of the subcollection. Our main result is a linear-programming based \((k-1+\tfrac{1}{k})\)-approximation algorithm for \(k\)-hypergraph \(b\)-matching. This settles the integrality gap when \(k\) is one more than a prime power, since it matches a previously-known lower bound. When the hypergraph is bipartite, we are able to improve the approximation ratio to \(k-1\), which is also best possible relative to the natural LP. These results are obtained using a more careful application of the iterated packing method.

Connected through hyperedge HE-1 (induced by source paper "integrality gaps for bounded color matchings"):
  with members:
    - "a birthday repetition theorem and complexity of approximating dense csps"
    - "lift and round to improve weighted completion time on unrelated machines"
    - "complexity results for rainbow matchings"
    - "on integrality ratios for asymmetric tsp in the sherali adams hierarchy"
    - "sparsest cut on bounded treewidth graphs algorithms and hardness results"
    - "iterative packing for demand and hypergraph matching"
    - "approximating sparsest cut in graphs of bounded treewidth"

Connected through hyperedge HE-2 (induced by source paper "approximate multi matroid intersection via iterative refinement"):
  with members:
    - "improved approximation for 3 dimensional matching via bounded pathwidth local search"
    - "matroidal degree bounded minimum spanning trees"
    - "submodular function maximization via the multilinear relaxation and contention resolution schemes"
    - "robust and maxmin optimization under matroid and knapsack uncertainty sets"
    - "constrained non monotone submodular maximization offline and secretary algorithms"
    - "on generalizations of network design problems with degree bounds"

Connected through hyperedge HE-3 (induced by source paper "algorithms to approximate column sparse packing problems"):
  with members:
    - "attenuate locally win globally an attenuation based framework for online stochastic matching with timeouts"
    - "random order contention resolution schemes"
    - "adaptivity gaps for stochastic probing submodular and xos functions"
    - "improved algorithmic bounds for discrepancy of sparse set systems"
    - "deterministic discrepancy minimization via the multiplicative weight update method"
    - "constrained submodular maximization via a non symmetric technique"
    - "constrained submodular maximization beyond 1 e"
    - "non negative submodular stochastic probing via stochastic contention resolution schemes"

Connected through hyperedge HE-4 (induced by source paper "stochastic packing integer programs with few queries"):
  with members:
    - "the stochastic matching problem beating half with a non adaptive algorithm"
    - "almost optimal stochastic weighted matching with few queries"
    - "adaptivity gaps for stochastic probing submodular and xos functions"
    - "ignorance is almost bliss near optimal stochastic matching with few queries"
    - "submodular stochastic probing on matroids"
    - "a stochastic probing problem with applications"
    - "iterative packing for demand and hypergraph matching"
    - "the query commit problem"

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)