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: "compact floor planning via orderly spanning trees"
  Abstract: Floor-planning is a fundamental step in VLSI chip design. Based upon the concept of orderly spanning trees, we present a simple O(n)-time algorithm to construct a floor-plan for any n-node plane triangulation. In comparison with previous floor-planning algorithms in the literature, our solution is not only simpler in the algorithm itself, but also produces floor-plans which require fewer module types. An equally important aspect of our new algorithm lies in its ability to fit the floorplan area in a rectangle of size (n - 1) × ⌊(2n + 1)/3⌋. Lower bounds on the worst-case area for floor-planning any plane triangulation are also provided in the paper.

Connected through hyperedge HE-1 (induced by source paper "the flip diameter of rectangulations and convex subdivisions"):
  with members:
    - "adjacency preserving spatial treemaps"
    - "rectangular layouts and contact graphs"

Connected through hyperedge HE-2 (induced by source paper "embedding the dual complex of hyper rectangular partitions"):
  with members:
    - "regular labelings and geometric structures"
    - "simultaneous embedding of a planar graph and its dual on the grid"

Connected through hyperedge HE-3 (induced by source paper "computing cartograms with optimal complexity"):
  with members:
    - "optimal polygonal representation of planar graphs"
    - "area universal rectangular layouts"
    - "rectangular layouts and contact graphs"

Connected through hyperedge HE-4 (induced by source paper "optimal polygonal representation of planar graphs"):
  with members:
    - "on touching triangle graphs"
    - "rectangular layouts and contact graphs"

Connected through hyperedge HE-5 (induced by source paper "regular labelings and geometric structures"):
  with members:
    - "steinitz theorems for simple orthogonal polyhedra"
    - "orientation constrained rectangular layouts"
    - "area universal rectangular layouts"

Connected through hyperedge HE-6 (induced by source paper "on touching triangle graphs"):
  with members:
    - "optimal polygonal representation of planar graphs"
    - "rectangular layouts and contact graphs"

Connected through hyperedge HE-7 (induced by source paper "orientation constrained rectangular layouts"):
  with members:
    - "area universal rectangular layouts"

Connected through hyperedge HE-8 (induced by source paper "orderly spanning trees with applications"):
  with members:
    - "linear time compression of bounded genus graphs into information theoretically optimal number of bits"
    - "improved compact visibility representation of planar graph via schnyder s realizer"
    - "compact encodings of planar graphs via canonical orderings and multiple parentheses"
    - "linear time succinct encodings of planar graphs via canonical orderings"
    - "a fast general methodology for information theoretically optimal encodings of 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.DS(Data Structures and Algorithms)