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 the classes of interval graphs of limited nesting and count of lengths"):
  Abstract: In 1969, Roberts introduced proper and unit interval graphs and proved that these classes are equal. Natural generalizations of the second class were considered in which the number of different lengths of intervals is limited by k. Not much is known about them and the long-standing open problem asks how hard is recognition even for k=2. In this paper, we show that a generalization of recognition called partial representation extension is NP-hard even for k=2, while a quadratic-time algorithm is known for unit interval graphs. #R##N#We propose generalizations of proper interval graphs called k-nested interval graphs in which there are no chains of k+1 intervals nested in each other. We give a linear-time algorithm for recognition and a polynomial-time algorithm for partial representation extension. These results extend a list of examples, where problems involving geometry (k lengths) are much harder than similar problems involving topology (nesting k).

Includes members:
  Member "extending partial representations of unit circular arc graphs":
    also connected through other hyperedges:
      (none)
  Member "on the thinness and proper thinness of a graph":
    also connected through other hyperedges:
      (none)
  Member "fo model checking of interval graphs":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "a new perspective on fo model checking of dense graph classes")
  Member "type based self stabilisation for computational fields":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "leakage and protocol composition in a game theoretic perspective")
  Member "fo model checking on posets of bounded width":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "first order interpretations of bounded expansion classes")
  Member "minimal and short representations of unit interval and unit circular arc graphs":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "on the isomorphism problem for helly circular arc graphs")
  Member "bounded representations of interval and proper interval graphs":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "extending partial representations of circle graphs")
  Member "extending partial representations of interval graphs":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "circle graph isomorphism in almost 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.DM(Discrete Mathematics)