human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "large minors in expanders"):
  Abstract: In this paper we study expander graphs and their minors. Specifically, we attempt to answer the following question: what is the largest function $f(n,\alpha,d)$, such that every $n$-vertex $\alpha$-expander with maximum vertex degree at most $d$ contains {\bf every} graph $H$ with at most $f(n,\alpha,d)$ edges and vertices as a minor? Our main result is that there is some universal constant $c$, such that $f(n,\alpha,d)\geq \frac{n}{c\log n}\cdot \left(\frac{\alpha}{d}\right )^c$. This bound achieves a tight dependence on $n$: it is well known that there are bounded-degree $n$-vertex expanders, that do not contain any grid with $\Omega(n/\log n)$ vertices and edges as a minor. The best previous result showed that $f(n,\alpha,d) \geq \Omega(n/\log^{\kappa}n)$, where $\kappa$ depends on both $\alpha$ and $d$. Additionally, we provide a randomized algorithm, that, given an $n$-vertex $\alpha$-expander with maximum vertex degree at most $d$, and another graph $H$ containing at most $\frac{n}{c\log n}\cdot \left(\frac{\alpha}{d}\right )^c$ vertices and edges, with high probability finds a model of $H$ in $G$, in time poly$(n)\cdot (d/\alpha)^{O\left( \log(d/\alpha) \right)}$. #R##N#We note that similar but stronger results were independently obtained by Krivelevich and Nenadov: they show that $f(n,\alpha,d)=\Omega \left(\frac{n\alpha^2}{d^2\log n} \right)$, and provide an efficient algorithm, that, given an $n$-vertex $\alpha$-expander of maximum vertex degree at most $d$, and a graph $H$ with $O\left( \frac{n\alpha^2}{d^2\log n} \right)$ vertices and edges, finds a model of $H$ in $G$. #R##N#Finally, we observe that expanders are the `most minor-rich' family of graphs in the following sense: for every $n$-vertex and $m$-edge graph $G$, there exists a graph $H$ with $O \left( \frac{n+m}{\log n} \right)$ vertices and edges, such that $H$ is not a minor of $G$.

Includes members:
  Member "towards tight er bounds for the excluded grid theorem":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "the parameterized complexity of motion planning for snake like robots")
  Member "improved bounds for the excluded grid theorem":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "theta triangle free and even hole k_4 free graphs part 1 layered wheels")
  Member "polynomial bounds for the grid minor theorem":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "hitting topological minors is fpt")
  Member "routing in undirected graphs with constant congestion":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "an approximation algorithm for fully planar edge disjoint paths")
  Member "a constructive proof of the general lovasz local lemma":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "scattering and sparse partitions and their applications")

Question: Please tell me which class the source paper 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)