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: "extending partial representations of interval graphs"
  Abstract: Interval graphs are intersection graphs of closed intervals of the real-line. The well-known computational problem, called recognition, asks whether an input graph $G$ can be represented by closed intervals, i.e., whether $G$ is an interval graph. There are several linear-time algorithms known for recognizing interval graphs, the oldest one is by Booth and Lueker [J. Comput. System Sci., 13 (1976)] based on PQ-trees. #R##N#In this paper, we study a generalization of recognition, called partial representation extension. The input of this problem consists of a graph $G$ with a partial representation $\cal R'$ fixing the positions of some intervals. The problem asks whether it is possible to place the remaining interval and create an interval representation $\cal R$ of the entire graph $G$ extending $\cal R'$. We generalize the characterization of interval graphs by Fulkerson and Gross [Pac. J. Math., 15 (1965)] to extendible partial representations. Using it, we give a linear-time algorithm for partial representation extension based on a reordering problem of PQ-trees.

Connected through hyperedge HE-1 (induced by source paper "circle graph isomorphism in almost linear time"):
  with members:
    - "testing isomorphism of circular arc graphs in polynomial time"
    - "the weisfeiler leman dimension of planar graphs is at most 3"
    - "deciding circular arc graph isomorphism in parameterized logspace"
    - "graph isomorphism restricted by lists"
    - "graph isomorphism in quasipolynomial time"
    - "completing orientations of partially oriented graphs"
    - "extending partial representations of circle graphs"
    - "extending partial representations of proper and unit interval graphs"

Connected through hyperedge HE-2 (induced by source paper "extending partial representations of unit circular arc graphs"):
  with members:
    - "the partial visibility representation extension problem"
    - "extending partial representations of circle graphs"
    - "extending partial representations of subclasses of chordal graphs"
    - "extending partial representations of function graphs and permutation graphs"

Connected through hyperedge HE-3 (induced by source paper "on the classes of interval graphs of limited nesting and count of lengths"):
  with members:
    - "extending partial representations of unit circular arc graphs"
    - "on the thinness and proper thinness of a graph"
    - "fo model checking of interval graphs"
    - "type based self stabilisation for computational fields"
    - "fo model checking on posets of bounded width"
    - "minimal and short representations of unit interval and unit circular arc graphs"
    - "bounded representations of interval and proper interval graphs"
    - "extending partial representations of circle graphs"

Connected through hyperedge HE-4 (induced by source paper "extending partial representations of circle graphs"):
  with members:
    - "the partial visibility representation extension problem"
    - "completing orientations of partially oriented graphs"
    - "minimal and short representations of unit interval and unit circular arc graphs"
    - "bounded representations of interval and proper interval graphs"
    - "linear time algorithm for partial representation extension of interval graphs"
    - "extending partial representations of proper and unit interval graphs"
    - "extending partial representations of subclasses of chordal graphs"
    - "extending partial representations of function graphs and permutation graphs"

Connected through hyperedge HE-5 (induced by source paper "simultaneous embedding of planar graphs"):
  with members:
    - "disconnectivity and relative positions in simultaneous embeddings"
    - "a kuratowski type theorem for planarity of partially embedded graphs"
    - "simultaneous pq ordering with applications to constrained embedding problems"
    - "testing simultaneous planarity when the common graph is 2 connected"
    - "simultaneous interval graphs"
    - "on a tree and a path with no geometric simultaneous embedding"
    - "the geometric thickness of low degree graphs"
    - "simultaneous embedding of a planar graph and its dual on the grid"

Connected through hyperedge HE-6 (induced by source paper "extending partial representations of proper and unit interval graphs"):
  with members:
    - "bounded representations of interval and proper interval graphs"
    - "linear time algorithm for partial representation extension of interval graphs"
    - "extending partial representations of circle graphs"
    - "extending partial representations of subclasses of chordal graphs"
    - "extending partial representations of function graphs and permutation graphs"
    - "simultaneous pq ordering with applications to constrained embedding problems"
    - "simultaneous interval graphs"

Connected through hyperedge HE-7 (induced by source paper "extending partial representations of subclasses of chordal graphs"):
  with members:
    - "bounded representations of interval and proper interval graphs"
    - "extending partial representations of circle graphs"
    - "extending partial representations of proper and unit interval graphs"
    - "extending partial representations of function graphs and permutation graphs"
    - "simultaneous pq ordering with applications to constrained embedding 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.DM(Discrete Mathematics)