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 "on rac drawings of graphs with one bend per edge"):
  Abstract: A k-bend right-angle-crossing drawing or (k-bend RAC drawing}, for short) of a graph is a polyline drawing where each edge has at most k bends and the angles formed at the crossing points of the edges are 90 degrees. Accordingly, a graph that admits a k-bend RAC drawing is referred to as k-bend right-angle-crossing graph (or k-bend RAC, for short). #R##N#In this paper, we continue the study of the maximum edge-density of 1-bend RAC graphs. We show that an n-vertex 1-bend RAC graph cannot have more than $5.5n-O(1)$ edges. We also demonstrate that there exist infinitely many n-vertex 1-bend RAC graphs with exactly $5n-O(1)$ edges. Our results improve both the previously known best upper bound of $6.5n-O(1)$ edges and the corresponding lower bound of $4.5n-O(\sqrt{n})$ edges by Arikushi et al. (Comput. Geom. 45(4), 169--177 (2012)).

Includes members:
  Member "a survey on graph drawing beyond planarity":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "fan crossing free graphs")
  Member "nic planar graphs":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "fan crossing free graphs")
  Member "on the density of non simple 3 planar graphs":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "simple k planar graphs are simple k 1 quasiplanar")
  Member "recognizing and drawing ic planar graphs":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "fan crossing free graphs")
  Member "the density of fan planar graphs":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "fan crossing free graphs")
  Member "on the number of edges of fan crossing free graphs":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "efficient generation of different topological representations of graphs beyond planarity")
  Member "the straight line rac drawing problem is np hard":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "rac drawings in subcubic area")

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)