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: "normal helly circular arc graphs and its subclasses"
  Abstract: A Helly circular-arc model M=(C,A) is a circle C together with a Helly family A of arcs of C. If no arc is contained in any other, then M is a proper Helly circular-arc model, if every arc has the same length, then M is a unit Helly circular-arc model, and if there are no two arcs covering the circle, then M is a normal Helly circular-arc model. A Helly (resp. proper Helly, unit Helly, normal Helly) circular-arc graph is the intersection graph of the arcs of a Helly (resp. proper Helly, unit Helly, normal Helly) circular-arc model. In this article we study these subclasses of Helly circular-arc graphs. We show natural generalizations of several properties of (proper) interval graphs that hold for some of these Helly circular-arc subclasses. Next, we describe characterizations for the subclasses of Helly circular-arc graphs, including forbidden induced subgraphs characterizations. These characterizations lead to efficient algorithms for recognizing graphs within these classes. Finally, we show how these classes of graphs relate with straight and round digraphs.

Connected through hyperedge HE-1 (induced by source paper "dual parameterization of weighted coloring"):
  with members:
    - "ruling out fpt algorithms for weighted coloring on forests"
    - "kernelization lower bounds by cross composition"
    - "kernels for below upper bound parameterizations of the hitting set and directed dominating set problems"

Connected through hyperedge HE-2 (induced by source paper "unit interval editing is fixed parameter tractable"):
  with members:
    - "unit interval vertex deletion fewer vertices are relevant"
    - "forbidden induced subgraphs of normal helly circular arc graphs characterization and detection"
    - "linear recognition of almost interval graphs"
    - "chordal editing is fixed parameter tractable"
    - "a subexponential parameterized algorithm for proper interval completion"
    - "a polynomial kernel for proper interval vertex deletion"
    - "finding small separators in linear time via treewidth reduction"
    - "polynomial kernels for proper interval completion and related problems"

Connected through hyperedge HE-3 (induced by source paper "linear recognition of almost interval graphs"):
  with members:
    - "a faster algorithm to recognize even hole free graphs"
    - "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"
    - "exploring subexponential parameterized complexity of completion problems"
    - "interval deletion is fixed parameter tractable"
    - "polynomial kernels for 3 leaf power graph modification problems"

Connected through hyperedge HE-4 (induced by source paper "forbidden induced subgraphs of normal helly circular arc graphs characterization and detection"):
  with members:
    - "forbidden structure characterization of circular arc graphs and a certifying recognition algorithm"
    - "linear recognition of almost interval graphs"
    - "on circular arc graphs having a model with no three arcs covering the circle"

Connected through hyperedge HE-5 (induced by source paper "linear time algorithms for finding tucker submatrices and lekkerkerker boland subgraphs"):
  with members:
    - "on circular arc graphs having a model with no three arcs covering the circle"

Connected through hyperedge HE-6 (induced by source paper "parameterized complexity of induced graph matching on claw free graphs"):
  with members:
    - "induced disjoint paths in claw free graphs"
    - "kernelization of packing problems"
    - "on the recognition of fuzzy circular interval graphs"
    - "dominating set is fixed parameter tractable in claw free graphs"
    - "domination when the stars are out"

Connected through hyperedge HE-7 (induced by source paper "domination when the stars are out"):
  with members:
    - "deterministic parameterized connected vertex cover"
    - "detecting 2 joins faster"
    - "parameterized complexity of induced graph matching on claw free graphs"
    - "optimal antithickenings of claw free trigraphs"
    - "dominating set is fixed parameter tractable in claw free graphs"
    - "linear time split decomposition revisited"
    - "solving dominating set in larger classes of graphs fpt algorithms and polynomial kernels"

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.DM(Discrete Mathematics)