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: "representative sets for multisets"
  Abstract: The notion of a $q$-representative set for a family of subsets has recently proven to be very useful in the design of parameterized and exact algorithms. We generalize this notion to families of $\mathit{multisets}$. We also give an efficient way to find a representative set for a family of multisets. As an application we give a deterministic algorithm for minimal weight r-SIMPLE k-PATH running in time $O^*(r^{O(k/r)})$ for $1<r\leq k$. This extends a result of Abasi et. al [ABGH14] that gave a \emph{randomized} algorithm of similar running time for the non-weighted case. We derive other algorithms for problems that can be viewed as augmenting a parameterized problem with a `relaxation' parameter. A corollary of our construction is an improved explicit construction of $\mathit{lopsided\; universal\; sets}$ [FLS14] for a certain range of parameters.

Connected through hyperedge HE-1 (induced by source paper "fast algorithms for parameterized problems with relaxed disjointness constraints"):
  with members:
    - "kernelization algorithms for packing problems allowing overlaps"
    - "representative sets of product families"
    - "representative families a unified tradeoff based approach"
    - "on r simple k path"
    - "efficient computation of representative sets with applications in parameterized and exact algorithms"
    - "deterministic parameterized algorithms for matching and packing problems"
    - "narrow sieves for parameterized paths and packings"

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)