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: "strong coresets for subspace approximation and k median in nearly linear time"
  Abstract: Recently the first $(1+\epsilon)$-approximate strong coresets for $k$-median and subspace approximation of size $\text{poly}(k/\epsilon)$ were obtained by Sohler and Woodruff 2018. Importantly, given $n$ points in $\mathbb{R}^d$, the size of these coresets was the first that was independent of both $n$ and $d$. Unfortunately their construction had a running time which was exponential in $\text{poly}(k/\epsilon)$. Here we give the first polynomial time, and in fact nearly linear time, algorithms for constructing such coresets. Our first algorithm runs in $\text{nnz}(A)/\epsilon + (n+d) \text{poly}(k/\epsilon)$ time and our second runs in $nd \log^2(nd) + (n+d) \text{poly}(k/\epsilon)$ time.

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)