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: "tree drawings revisited"
  Abstract: We make progress on a number of open problems concerning the area requirement for drawing trees on a grid. We prove that #R##N#1. every tree of size $n$ (with arbitrarily large degree) has a straight-line drawing with area $n2^{O(\sqrt{\log\log n\log\log\log n})}$, improving the longstanding $O(n\log n)$ bound; #R##N#2. every tree of size $n$ (with arbitrarily large degree) has a straight-line upward drawing with area $n\sqrt{\log n}(\log\log n)^{O(1)}$, improving the longstanding $O(n\log n)$ bound; #R##N#3. every binary tree of size $n$ has a straight-line orthogonal drawing with area $n2^{O(\log^*n)}$, improving the previous $O(n\log\log n)$ bound by Shin, Kim, and Chwa (1996) and Chan, Goodrich, Kosaraju, and Tamassia (1996); #R##N#4. every binary tree of size $n$ has a straight-line order-preserving drawing with area $n2^{O(\log^*n)}$, improving the previous $O(n\log\log n)$ bound by Garg and Rusu (2003); #R##N#5. every binary tree of size $n$ has a straight-line orthogonal order-preserving drawing with area $n2^{O(\sqrt{\log n})}$, improving the $O(n^{3/2})$ previous bound by Frati (2007).

Connected through hyperedge HE-1 (induced by source paper "improved upper and lower bounds for lr drawings of binary trees"):
  with members:
    - "lr drawings of ordered rooted binary trees and near linear area drawings of outerplanar graphs"

Connected through hyperedge HE-2 (induced by source paper "on the area requirements of planar straight line orthogonal drawings of ternary trees"):
  with members:
    - "lr drawings of ordered rooted binary trees and near linear area drawings of outerplanar graphs"

Connected through hyperedge HE-3 (induced by source paper "pole dancing 3d morphs for tree drawings"):
  with members:
    - "how to morph planar graph drawings"
    - "morphing planar graph drawings with unidirectional moves"
    - "morphing planar graph drawings optimally"

Connected through hyperedge HE-4 (induced by source paper "drawing a rooted tree as a rooted y monotone minimum spanning tree"):
  with members:
    - "simple compact monotone tree drawings"
    - "optimal monotone drawings of trees"
    - "rooted uniform monotone minimum spanning trees"

Connected through hyperedge HE-5 (induced by source paper "how to fit a tree in a box"):
  with members:
    - "on upward drawings of trees on a given grid"

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)