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: "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.

Connected through hyperedge HE-1 (induced by source paper "three in a tree in near linear time"):
  with members:
    - "graph pattern detection hardness for all induced patterns and faster non induced cycles"
    - "on the structure of pan even hole free graphs"
    - "powers of tensors and fast matrix multiplication"
    - "detecting an induced net subdivision"
    - "large induced subgraphs via triangulations and cmso"
    - "induced disjoint paths in claw free graphs"
    - "detecting 2 joins faster"
    - "the k in a path problem for claw free graphs"

Connected through hyperedge HE-2 (induced by source paper "structure and algorithms for cap even hole free graphs"):
  with members:
    - "the behavior of clique width under graph operations and graph transformations"
    - "vertex elimination orderings for hereditary graph classes"
    - "on the structure of pan even hole free graphs"

Connected through hyperedge HE-3 (induced by source paper "on the structure of pan even hole free graphs"):
  with members:
    - "vertex elimination orderings for hereditary graph classes"

Connected through hyperedge HE-4 (induced by source paper "a note on coloring even hole cap free graphs"):
  with members:
    - "on the structure of pan even hole free graphs"

Connected through hyperedge HE-5 (induced by source paper "linear recognition of almost interval graphs"):
  with members:
    - "faster algorithms for vertex partitioning problems parameterized by clique width"
    - "forbidden induced subgraphs of normal helly circular arc graphs characterization and detection"
    - "chordal editing is fixed parameter tractable"
    - "a subexponential parameterized algorithm for interval completion"
    - "normal helly circular arc graphs and its subclasses"
    - "exploring subexponential parameterized complexity of completion problems"
    - "interval deletion is fixed parameter tractable"
    - "polynomial kernels for 3 leaf power graph modification problems"

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)