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: "matroid secretary for regular and decomposable matroids"
  Abstract: In the matroid secretary problem we are given a stream of elements and asked to choose a set of elements that maximizes the total value of the set, subject to being an independent set of a matroid given in advance. The difficulty comes from the assumption that decisions are irrevocable: if we choose to accept an element when it is presented by the stream then we can never get rid of it, and if we choose not to accept it then we cannot later add it. Babaioff, Immorlica, and Kleinberg [SODA 2007] introduced this problem, gave O(1)-competitive algorithms for certain classes of matroids, and conjectured that every matroid admits an O(1)-competitive algorithm. However, most matroids that are known to admit an O(1)-competitive algorithm can be easily represented using graphs (e.g. graphic and transversal matroids). In particular, there is very little known about F-representable matroids (the class of matroids that can be represented as elements of a vector space over a field F), which are one of the foundational matroid classes. Moreover, most of the known techniques are as dependent on graph theory as they are on matroid theory. We go beyond graphs by giving an O(1)-competitive algorithm for regular matroids (the class of matroids that are representable over every field), and use techniques that are matroid-theoretic rather than graph-theoretic. We use the regular matroid decomposition theorem of Seymour to decompose any regular matroid into matroids which are either graphic, cographic, or isomorphic to R_{10}, and then show how to combine algorithms for these basic classes into an algorithm for regular matroids. This allows us to generalize beyond regular matroids to any class of matroids that admits such a decomposition into classes for which we already have good algorithms. In particular, we give an O(1)-competitive algorithm for the class of max-flow min-cut matroids.

Connected through hyperedge HE-1 (induced by source paper "strong algorithms for the ordinal matroid secretary problem"):
  with members:
    - "combinatorial secretary problems with ordinal information"
    - "combinatorial prophet inequalities"
    - "beyond matroids secretary problem and prophet inequality with general constraints"
    - "secretary problems with non uniform arrival order"
    - "the submodular secretary problem goes linear"
    - "o log log rank competitive ratio for the matroid secretary problem"
    - "a simple o log log mathrm rank competitive algorithm for the matroid secretary problem"
    - "prophet inequalities with limited information"

Connected through hyperedge HE-2 (induced by source paper "on the number of circuits in regular matroids with connections to lattices and codes"):
  with members:
    - "on the weight distribution of random binary linear codes"
    - "isolating a vertex via lattices polytopes with totally unimodular faces"
    - "extended formulations for independence polytopes of regular matroids"
    - "a polynomial time algorithm for estimating the partition function of the ferromagnetic ising model on a regular matroid"
    - "a decomposition theory for binary linear codes"

Connected through hyperedge HE-3 (induced by source paper "a framework for the secretary problem on the intersection of matroids"):
  with members:
    - "secretary problems with non uniform arrival order"
    - "online contention resolution schemes"
    - "prophet inequalities with limited information"
    - "online independent set beyond the worst case secretaries prophets and periods"
    - "polymatroid prophet inequalities"
    - "matroid prophet inequalities"
    - "advances on matroid secretary problems free order model and laminar case"
    - "on variants of the matroid secretary problem"

Connected through hyperedge HE-4 (induced by source paper "covering vectors by spaces regular matroids"):
  with members:
    - "spanning circuits in regular matroids"
    - "a polynomial time algorithm for estimating the partition function of the ferromagnetic ising model on a regular matroid"

Connected through hyperedge HE-5 (induced by source paper "spanning circuits in regular matroids"):
  with members:
    - "a birthday repetition theorem and complexity of approximating dense csps"
    - "polynomial bounds for the grid minor theorem"
    - "designing fpt algorithms for cut problems using randomized contractions"
    - "faster parameterized algorithms using linear programming"
    - "minimum k way cut of bounded size is fixed parameter tractable"

Connected through hyperedge HE-6 (induced by source paper "the submodular secretary problem goes linear"):
  with members:
    - "o log log rank competitive ratio for the matroid secretary problem"
    - "a simple o log log mathrm rank competitive algorithm for the matroid secretary problem"
    - "prophet inequalities with limited information"
    - "advances on matroid secretary problems free order model and laminar case"
    - "secretary problems with convex costs"
    - "the simulated greedy algorithm for several submodular matroid secretary problems"
    - "submodular function maximization via the multilinear relaxation and contention resolution schemes"
    - "constrained non monotone submodular maximization offline and secretary algorithms"

Connected through hyperedge HE-7 (induced by source paper "a simple o log log mathrm rank competitive algorithm for the matroid secretary problem"):
  with members:
    - "prophet inequalities with limited information"
    - "advances on matroid secretary problems free order model and laminar case"
    - "on variants of the matroid secretary problem"
    - "secretary problems with convex costs"
    - "the simulated greedy algorithm for several submodular matroid secretary problems"
    - "constrained non monotone submodular maximization offline and secretary algorithms"
    - "matroid secretary problem in the random assignment model"
    - "algorithms for secretary problems on graphs and hypergraphs"

Connected through hyperedge HE-8 (induced by source paper "o log log rank competitive ratio for the matroid secretary problem"):
  with members:
    - "prophet inequalities with limited information"
    - "advances on matroid secretary problems free order model and laminar case"
    - "on variants of the matroid secretary problem"
    - "secretary problems with convex costs"
    - "constrained non monotone submodular maximization offline and secretary algorithms"
    - "matroid secretary problem in the random assignment model"
    - "algorithms for secretary problems on graphs and hypergraphs"

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)