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 "a faster algorithm to recognize even hole free graphs"):
  Abstract: We study the problem of determining whether an n-node graph G contains an even hole, i.e., an induced simple cycle consisting of an even number of nodes. Conforti, Cornuejols, Kapoor, and Vuskovic gave the first polynomial-time algorithm for the problem, which runs in O ( n 40 ) time. Later, Chudnovsky, Kawarabayashi, and Seymour reduced the running time to O ( n 31 ) . The best previously known algorithm for the problem, due to da Silva and Vuskovic, runs in O ( n 19 ) time. In this paper, we solve the problem in O ( n 11 ) time via a decomposition-based algorithm that relies on the decomposition theorem of da Silva and Vuskovic. Moreover, if G contains even holes, then our algorithm also outputs an even hole of G in O ( n 11 ) time.

Includes members:
  Member "detecting 2 joins faster":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "three in a tree in near linear time")
  Member "combinatorial optimization with 2 joins":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "three in a tree in near linear time")
  Member "algorithms for perfectly contractile graphs":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "three in a tree in near linear time")

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)