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: "advancements on sefe and partitioned book embedding problems"
  Abstract: In this work we investigate the complexity of some problems related to the {\em Simultaneous Embedding with Fixed Edges} (SEFE) of $k$ planar graphs and the PARTITIONED $k$-PAGE BOOK EMBEDDING (PBE-$k$) problems, which are known to be equivalent under certain conditions. #R##N#While the computational complexity of SEFE for $k=2$ is still a central open question in Graph Drawing, the problem is NP-complete for $k \geq 3$ [Gassner {\em et al.}, WG '06], even if the intersection graph is the same for each pair of graphs ({\em sunflower intersection}) [Schaefer, JGAA (2013)]. #R##N#We improve on these results by proving that SEFE with $k \geq 3$ and sunflower intersection is NP-complete even when the intersection graph is a tree and all the input graphs are biconnected. Also, we prove NP-completeness for $k \geq 3$ of problem PBE-$k$ and of problem PARTITIONED T-COHERENT $k$-PAGE BOOK EMBEDDING (PTBE-$k$) - that is the generalization of PBE-$k$ in which the ordering of the vertices on the spine is constrained by a tree $T$ - even when two input graphs are biconnected. Further, we provide a linear-time algorithm for PTBE-$k$ when $k-1$ pages are assigned a connected graph. Finally, we prove that the problem of maximizing the number of edges that are drawn the same in a SEFE of two graphs is NP-complete in several restricted settings ({\em optimization version of SEFE}, Open Problem $9$, Chapter $11$ of the Handbook of Graph Drawing and Visualization).

Connected through hyperedge HE-1 (induced by source paper "upward book embeddings of st graphs"):
  with members:
    - "upward planar morphs"
    - "windrose planarity embedding graphs with direction constrained edges"
    - "crossing minimization for 1 page and 2 page drawings of graphs with bounded treewidth"
    - "upward partitioned book embeddings"
    - "planar l drawings of directed graphs"
    - "arc diagrams flip distances and hamiltonian triangulations"
    - "the book thickness of 1 planar graphs is constant"
    - "intersection link representations of graphs"

Connected through hyperedge HE-2 (induced by source paper "the quasefe problem"):
  with members:
    - "a survey on graph drawing beyond planarity"
    - "simultaneous drawing of planar graphs with right angle crossings and few bends"
    - "simultaneous visibility representations of plane st graphs using l shapes"
    - "simultaneous embedding of planar graphs"
    - "simultaneous pq ordering with applications to constrained embedding problems"
    - "testing simultaneous planarity when the common graph is 2 connected"
    - "on a tree and a path with no geometric simultaneous embedding"

Connected through hyperedge HE-3 (induced by source paper "hierarchical partial planarity"):
  with members:
    - "simultaneous orthogonal planarity"
    - "simultaneous drawing of planar graphs with right angle crossings and few bends"
    - "planarity of streamed graphs"
    - "drawing partially embedded and simultaneously planar graphs"
    - "streamed graph drawing and the file maintenance problem"
    - "picking planar edges or drawing a graph with a planar subgraph"
    - "algorithms and bounds for drawing non planar graphs with crossing free subgraphs"
    - "disconnectivity and relative positions in simultaneous embeddings"

Connected through hyperedge HE-4 (induced by source paper "upward partitioned book embeddings"):
  with members:
    - "two page book embeddings of 4 planar graphs"
    - "implementing a partitioned 2 page book embedding testing algorithm"
    - "when can you fold a map"

Connected through hyperedge HE-5 (induced by source paper "clustered planarity with pipes"):
  with members:
    - "subexponential time and fpt algorithms for embedded flat clustered planarity"
    - "recognizing weak embeddings of graphs"
    - "hanani tutte for approximating maps of graphs"
    - "c planarity of embedded cyclic c graphs"
    - "embedding graphs into embedded graphs"
    - "a new perspective on clustered planarity as a combinatorial embedding problem"
    - "detecting weakly simple polygons"
    - "toward the hanani tutte theorem for clustered graphs"

Connected through hyperedge HE-6 (induced by source paper "on the mathcal np hardness of gracsim drawing and k sefe problems"):
  with members:
    - "simultaneous drawing of planar graphs with right angle crossings and few bends"
    - "simultaneous embeddings with few bends and crossings"
    - "simultaneous visibility representations of plane st graphs using l shapes"
    - "simultaneous embedding edge orderings relative positions cutvertices"
    - "drawing partially embedded and simultaneously planar graphs"
    - "sefe with no mapping via large induced outerplane graphs in plane graphs"
    - "simultaneous embedding of planar graphs"
    - "simultaneous pq ordering with applications to constrained embedding problems"

Connected through hyperedge HE-7 (induced by source paper "simultaneous orthogonal planarity"):
  with members:
    - "simultaneous drawing of planar graphs with right angle crossings and few bends"
    - "simultaneous embedding edge orderings relative positions cutvertices"
    - "disconnectivity and relative positions in simultaneous embeddings"
    - "simultaneous pq ordering with applications to constrained embedding problems"
    - "testing simultaneous planarity when the common graph is 2 connected"
    - "simultaneous interval graphs"

Connected through hyperedge HE-8 (induced by source paper "computing nodetrix representations of clustered graphs"):
  with members:
    - "intersection link representations of graphs"
    - "advances on testing c planarity of embedded flat clustered graphs"
    - "relaxing the constraints of clustered planarity"

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.CC(Computational Complexity)