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 drawings visualizing non planar diagrams in a planar way"
  Abstract: In this paper, we introduce a new approach for drawing diagrams that have applications in software visualization. Our approach is to use a technique we call confluent drawing for visualizing non-planar diagrams in a planar way. This approach allows us to draw, in a crossing-free manner, graphs--such as software interaction diagrams--that would normally have many crossings. The main idea of this approach is quite simple: we allow groups of edges to be merged together and drawn as "tracks" (similar to train tracks). Producing such confluent diagrams automatically from a graph with many crossings is quite challenging, however, so we offer two heuristic algorithms to test if a non-planar graph can be drawn efficiently in a confluent way. In addition, we identify several large classes of graphs that can be completely categorized as being either confluently drawable or confluently non-drawable.

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

Connected through hyperedge HE-2 (induced by source paper "confluent drawing parallel coordinates web based interactive visual analytics of large multi dimensional data"):
  with members:
    - "evaluation of a bundling technique for parallel coordinates"

Connected through hyperedge HE-3 (induced by source paper "a survey on graph drawing beyond planarity"):
  with members:
    - "parameterized complexity of 1 planarity"
    - "minimum weight connectivity augmentation for planar straight line graphs"
    - "compact drawings of 1 planar graphs with right angle crossings and few bends"
    - "drawing subcubic 1 planar graphs with few bends few slopes and large angles"
    - "turning cliques into paths to achieve planarity"
    - "a heuristic approach towards drawings of graphs with high crossing resolution"
    - "on rac drawings of graphs with one bend per edge"
    - "recognizing optimal 1 planar graphs in linear time"

Connected through hyperedge HE-4 (induced by source paper "further towards unambiguous edge bundling investigating power confluent drawings for network visualization"):
  with members:
    - "graph drawing by stochastic gradient descent"
    - "strict confluent drawing"
    - "improved optimal and approximate power graph compression for clearer visualisation of dense graphs"
    - "confluent layered drawings"
    - "delta confluent drawings"

Connected through hyperedge HE-5 (induced by source paper "1 fan bundle planar drawings of graphs"):
  with members:
    - "an annotated bibliography on 1 planarity"
    - "on the recognition of fan planar and maximal outer fan planar graphs"
    - "the density of fan planar graphs"
    - "on the number of edges of fan crossing free graphs"
    - "the straight line rac drawing problem is np hard"

Connected through hyperedge HE-6 (induced by source paper "strict confluent drawing"):
  with members:
    - "confluent hasse diagrams"
    - "confluent layered drawings"
    - "delta confluent drawings"

Connected through hyperedge HE-7 (induced by source paper "the bundled crossing number"):
  with members:
    - "strict confluent drawing"
    - "hardness of approximation for crossing number"
    - "an algorithm for the graph crossing number problem"

Connected through hyperedge HE-8 (induced by source paper "on embeddability of buses in point sets"):
  with members:
    - "many to one boundary labeling with backbones"
    - "2 stack pushall sortable permutations"
    - "on bus graph realizability"

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)