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 "walking through waypoints"):
  Abstract: We initiate the study of a fundamental combinatorial problem: Given a capacitated graph $G=(V,E)$, find a shortest walk ("route") from a source $s\in V$ to a destination $t\in V$ that includes all vertices specified by a set $\mathscr{W}\subseteq V$: the \emph{waypoints}. This waypoint routing problem finds immediate applications in the context of modern networked distributed systems. Our main contribution is an exact polynomial-time algorithm for graphs of bounded treewidth. We also show that if the number of waypoints is logarithmically bounded, exact polynomial-time algorithms exist even for general graphs. Our two algorithms provide an almost complete characterization of what can be solved exactly in polynomial-time: we show that more general problems (e.g., on grid graphs of maximum degree 3, with slightly more waypoints) are computationally intractable.

Includes members:
  Member "virtual network embedding approximations leveraging randomized rounding":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "joint wireless and edge computing resource management with dynamic network slice selection")
  Member "approximate and incremental network function placement":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "online joint placement and allocation of virtual network functions with heterogeneous servers")
  Member "an approximation algorithm for path computation and function placement in sdns":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "robust network function virtualization")
  Member "new algorithms for maximum disjoint paths based on tree likeness":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "the power of cut based parameters for computing edge disjoint paths")
  Member "service chain and virtual network embeddings approximations using randomized rounding":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "robust network function virtualization")
  Member "online admission control and embedding of service chains":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "robust online composition routing and nf placement for nfv enabled services")
  Member "on routing disjoint paths in bounded treewidth graphs":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "the power of cut based parameters for computing edge disjoint paths")
  Member "vertex disjoint path in upward planar graphs":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "routing with congestion in acyclic digraphs")

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)