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: "confluent hasse diagrams"
  Abstract: We show that a transitively reduced digraph has a confluent upward drawing if and only if its reachability relation has order dimension at most two. In this case, we construct a confluent upward drawing with $O(n^2)$ features, in an $O(n) \times O(n)$ grid in $O(n^2)$ time. For the digraphs representing series-parallel partial orders we show how to construct a drawing with $O(n)$ features in an $O(n) \times O(n)$ grid in $O(n)$ time from a series-parallel decomposition of the partial order. Our drawings are optimal in the number of confluent junctions they use.

Connected through hyperedge HE-1 (induced by source paper "on strict outer confluent graphs"):
  with members:
    - "strict confluent drawing"
    - "split decomposition and graph labelled trees characterizations and fully dynamic algorithms for totally decomposable graphs"
    - "confluent layered drawings"
    - "delta confluent drawings"
    - "confluent drawings visualizing non planar diagrams in a planar way"

Connected through hyperedge HE-2 (induced by source paper "strict confluent drawing"):
  with members:
    - "confluent layered drawings"
    - "delta confluent drawings"
    - "confluent drawings visualizing non planar diagrams in a planar way"

Connected through hyperedge HE-3 (induced by source paper "superpatterns and universal point sets"):
  with members:
    - "drawing arrangement graphs in small grids or how to play planarity"
    - "drawing permutations with few corners"
    - "small superpatterns for dominance drawing"
    - "universal point sets for planar three tree"

Connected through hyperedge HE-4 (induced by source paper "small superpatterns for dominance drawing"):
  with members:
    - "superpatterns and universal point sets"
    - "drawing arrangement graphs in small grids or how to play planarity"
    - "on universal point sets for planar graphs"

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)