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: "multiway cut pairwise realizable distributions and descending thresholds"
  Abstract: We design new approximation algorithms for the Multiway Cut problem, improving the previously known factor of 1.32388 [Buchbinder et al., 2013]. #R##N#We proceed in three steps. First, we analyze the rounding scheme of Buchbinder et al., 2013 and design a modification that improves the approximation to (3+sqrt(5))/4 (approximately 1.309017). We also present a tight example showing that this is the best approximation one can achieve with the type of cuts considered by Buchbinder et al., 2013: (1) partitioning by exponential clocks, and (2) single-coordinate cuts with equal thresholds. #R##N#Then, we prove that this factor can be improved by introducing a new rounding scheme: (3) single-coordinate cuts with descending thresholds. By combining these three schemes, we design an algorithm that achieves a factor of (10 + 4 sqrt(3))/13 (approximately 1.30217). This is the best approximation factor that we are able to verify by hand. #R##N#Finally, we show that by combining these three rounding schemes with the scheme of independent thresholds from Karger et al., 2004, the approximation factor can be further improved to 1.2965. This approximation factor has been verified only by computer.

Connected through hyperedge HE-1 (induced by source paper "optimizing item and subgroup configurations for social aware vr shopping"):
  with members:
    - "solving linear programs in the current matrix multiplication time"
    - "neural collaborative filtering"
    - "spmc socially aware personalized markov chains for sparse sequential recommendation"
    - "a multilayer network dataset of interaction and influence spreading in a virtual world"
    - "almost polynomial ratio eth hardness of approximating densest k subgraph"
    - "submodular and supermodular multi labeling and vertex happiness"
    - "vbpr visual bayesian personalized ranking from implicit feedback"
    - "from group recommendations to group formation"

Connected through hyperedge HE-2 (induced by source paper "downgrading to minimize connectivity"):
  with members:
    - "improved algorithms for mst and metric tsp interdiction"
    - "hardness and approximation for network flow interdiction"
    - "simple and fast rounding algorithms for directed and node weighted multiway cut"
    - "an o 1 approximation for minimum spanning tree interdiction"
    - "improved region growing and combinatorial algorithms for k route cut problems"
    - "approximation algorithms and hardness of the k route cut problem"

Connected through hyperedge HE-3 (induced by source paper "solving k 1 stable instances of k terminal cut with isolating cuts"):
  with members:
    - "bilu linial stable instances of max cut and minimum multiway cut"
    - "are stable instances easy"
    - "rounding algorithms for a geometric embedding of minimum multiway cut"

Connected through hyperedge HE-4 (induced by source paper "improving the integrality gap for multiway cut"):
  with members:
    - "an improved integrality gap for the calinescu karloff rabani relaxation for multiway cut"
    - "rounding algorithms for a geometric embedding of minimum multiway cut"

Connected through hyperedge HE-5 (induced by source paper "shortest path queries graph partitioning and covering problems in worst and beyond worst case settings"):
  with members:
    - "lower bounds in the preprocessing and query phases of routing algorithms"

Connected through hyperedge HE-6 (induced by source paper "global and fixed terminal cuts in digraphs"):
  with members:
    - "approximating multicut and the demand graph"
    - "an improved integrality gap for the calinescu karloff rabani relaxation for multiway cut"
    - "improved hardness for cut interdiction and firefighter problems"
    - "simple and fast rounding algorithms for directed and node weighted multiway cut"
    - "directed multicut with linearly ordered terminals"
    - "rounding algorithms for a geometric embedding of minimum multiway cut"

Connected through hyperedge HE-7 (induced by source paper "approximating multicut and the demand graph"):
  with members:
    - "local distribution and the symmetry gap approximability of multiway partitioning problems"

Connected through hyperedge HE-8 (induced by source paper "an improved integrality gap for the calinescu karloff rabani relaxation for multiway cut"):
  with members:
    - "rounding algorithms for a geometric embedding of minimum multiway cut"

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)