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: "parameterized complexity of 1 planarity"
  Abstract: We consider the problem of finding a 1-planar drawing for a general graph, where a 1-planar drawing is a drawing in which each edge participates in at most one crossing. Since this problem is known to be NP-hard we investigate the parameterized complexity of the problem with respect to the vertex cover number, tree-depth, and cyclomatic number. For these parameters we construct fixed-parameter tractable algorithms. However, the problem remains NP-complete for graphs of bounded bandwidth, pathwidth, or treewidth.

Connected through hyperedge HE-1 (induced by source paper "an experimental study of a 1 planarity testing and embedding algorithm"):
  with members:
    - "planar graphs have bounded queue number"
    - "a survey on graph drawing beyond planarity"
    - "recognizing optimal 1 planar graphs in linear time"
    - "embedding preserving rectangle visibility representations of nonplanar graphs"
    - "an annotated bibliography on 1 planarity"
    - "crossing patterns in nonplanar road networks"
    - "re embedding a 1 plane graph into a straight line drawing in linear time"
    - "ortho polygon visibility representations of embedded graphs"

Connected through hyperedge HE-2 (induced by source paper "sketched representations and orthogonal planarity of bounded treewidth graphs"):
  with members:
    - "drawing hv restricted planar graphs"
    - "bend minimum orthogonal drawings in quadratic time"
    - "crossing minimization for 1 page and 2 page drawings of graphs with bounded treewidth"
    - "orthogonal graph drawing with inflexible edges"

Connected through hyperedge HE-3 (induced by source paper "parameterized algorithms for book embedding problems"):
  with members:
    - "crossing minimization for 1 page and 2 page drawings of graphs with bounded treewidth"
    - "the complexity landscape of decompositional parameters for ilp"
    - "two page book embeddings of 4 planar graphs"

Connected through hyperedge HE-4 (induced by source paper "a survey on graph drawing beyond planarity"):
  with members:
    - "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"
    - "orthogonal and smooth orthogonal layouts of 1 planar graphs with low edge complexity"

Connected through hyperedge HE-5 (induced by source paper "recognizing optimal 1 planar graphs in linear time"):
  with members:
    - "a reduction system for optimal 1 planar graphs"
    - "recognizing and drawing ic planar graphs"
    - "on 4 map graphs and 1 planar graphs and their recognition problem"
    - "on the recognition of fan planar and maximal outer fan planar graphs"
    - "adding one edge to planar graphs makes crossing number and 1 planarity hard"
    - "the straight line rac drawing problem is np hard"

Connected through hyperedge HE-6 (induced by source paper "an annotated bibliography on 1 planarity"):
  with members:
    - "recognizing optimal 1 planar graphs in linear time"
    - "nic planar graphs"
    - "new results on edge partitions of 1 plane graphs"
    - "recognizing and drawing ic planar graphs"
    - "re embedding a 1 plane graph into a straight line drawing in linear time"
    - "recognizing ic planar and nic planar graphs"
    - "ortho polygon visibility representations of embedded graphs"
    - "approximation algorithms for polynomial expansion and low density graphs"

Connected through hyperedge HE-7 (induced by source paper "nic planar graphs"):
  with members:
    - "recognizing optimal 1 planar graphs in linear time"
    - "a note on ic planar graphs"
    - "recognizing and drawing ic planar graphs"
    - "recognizing ic planar and nic planar graphs"
    - "on 4 map graphs and 1 planar graphs and their recognition problem"
    - "adding one edge to planar graphs makes crossing number and 1 planarity hard"

Connected through hyperedge HE-8 (induced by source paper "crossing patterns in nonplanar road networks"):
  with members:
    - "going off road transversal complexity in road networks"

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)