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: "flipping edge labelled triangulations"
  Abstract: Flips in triangulations have received a lot of attention over the past decades. However, the problem of tracking where particular edges go during the flipping process has not been addressed. We examine this question by attaching unique labels to the triangulation edges. We introduce the concept of the orbit of an edge $e$, which is the set of all edges reachable from $e$ via flips. #R##N#We establish the first upper and lower bounds on the diameter of the flip graph in this setting. Specifically, we prove tight $\Theta(n \log n)$ bounds for edge-labelled triangulations of $n$-vertex convex polygons and combinatorial triangulations, contrasting with the $\Theta(n)$ bounds in their respective unlabelled settings. The $\Omega(n \log n)$ lower bound for the convex polygon setting might be of independent interest, as it generalizes lower bounds on certain sorting models. When simultaneous flips are allowed, the upper bound for convex polygons decreases to $O(\log^2 n)$, although we no longer have a matching lower bound. #R##N#Moving beyond convex polygons, we show that edge-labelled triangulated polygons with a single reflex vertex can have a disconnected flip graph. This is in sharp contrast with the unlabelled case, where the flip graph is connected for any triangulated polygon. For spiral polygons, we provide a complete characterization of the orbits. This allows us to decide connectivity of the flip graph of a spiral polygon in linear time. We also prove an upper bound of $O(n^2)$ on the diameter of each connected component, which is optimal in the worst case. We conclude with an example of a non-spiral polygon whose flip graph has diameter $\Omega(n^3)$.

Connected through hyperedge HE-1 (induced by source paper "a polynomial version of cereceda s conjecture"):
  with members:
    - "reoptimization of parameterized problems"
    - "towards cereceda s conjecture for planar graphs"
    - "improved bounds for randomly sampling colorings via linear programming"
    - "on a conjecture of mohar concerning kempe equivalence of regular graphs"
    - "a reconfigurations analogue of brooks theorem and its consequences"
    - "recoloring graphs via tree decompositions"

Connected through hyperedge HE-2 (induced by source paper "linear transformations between colorings in chordal graphs"):
  with members:
    - "a polynomial version of cereceda s conjecture"
    - "reoptimization of parameterized problems"
    - "recoloring graphs via tree decompositions"

Connected through hyperedge HE-3 (induced by source paper "a note on the flip distance problem for edge labeled triangulations"):
  with members:
    - "flip distance between triangulations of a simple polygon is np complete"
    - "flip distance between triangulations of a planar point set is apx hard"
    - "flip distance between two triangulations of a point set is np complete"

Connected through hyperedge HE-4 (induced by source paper "a proof of the orbit conjecture for flipping edge labelled triangulations"):
  with members:
    - "reconfiguring ordered bases of a matroid"
    - "flips in edge labelled pseudo triangulations"
    - "flip distance between triangulations of a simple polygon is np complete"
    - "flip distance between triangulations of a planar point set is apx hard"
    - "computing the flip distance between triangulations"
    - "the complexity of change"
    - "flip distance between two triangulations of a point set is np complete"
    - "happy endings for flip graphs"

Connected through hyperedge HE-5 (induced by source paper "reconfiguring ordered bases of a matroid"):
  with members:
    - "minimum weight triangulation is np hard"

Connected through hyperedge HE-6 (induced by source paper "shortest reconfiguration paths in the solution space of boolean formulas"):
  with members:
    - "flip distance between triangulations of a simple polygon is np complete"
    - "vertex cover reconfiguration and beyond"
    - "flip distance between triangulations of a planar point set is apx hard"
    - "recoloring bounded treewidth graphs"
    - "on the parameterized complexity of reconfiguration problems"
    - "a computational trichotomy for connectivity of boolean satisfiability"
    - "flip distance between two triangulations of a point set is np complete"
    - "a history of flips in combinatorial triangulations"

Connected through hyperedge HE-7 (induced by source paper "flip distance between triangulations of a planar point set is apx hard"):
  with members:
    - "flip distance between triangulations of a simple polygon is np complete"
    - "flip distance between two triangulations of a point set is np complete"
    - "happy endings for flip graphs"
    - "rotation distance is fixed parameter tractable"

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.CG(Computational Geometry)