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: "optimal monotone drawings of trees"
  Abstract: A monotone drawing of a graph G is a straight-line drawing of G such that, for every pair of vertices u,w in G, there exists abpath P_{uw} in G that is monotone in some direction l_{uw}. (Namely, the order of the orthogonal projections of the vertices of P_{uw} on l_{uw} is the same as the order they appear in P_{uw}.) #R##N#The problem of finding monotone drawings for trees has been studied in several recent papers. The main focus is to reduce the size of the drawing. Currently, the smallest drawing size is O(n^{1.205}) x O(n^{1.205}). In this paper, we present an algorithm for constructing monotone drawings of trees on a grid of size at most 12n x 12n. The smaller drawing size is achieved by a new simple Path Draw algorithm, and a procedure that carefully assigns primitive vectors to the paths of the input tree T. #R##N#We also show that there exists a tree T_0 such that any monotone drawing of T_0 must use a grid of size Omega(n) x Omega(n). So the size of our monotone drawing of trees is asymptotically optimal.

Connected through hyperedge HE-1 (induced by source paper "drawing graphs as spanners"):
  with members:
    - "on plane constrained bounded degree spanners"
    - "strongly monotone drawings of planar graphs"
    - "on planar greedy drawings of 3 connected planar graphs"
    - "on monotone drawings of trees"
    - "lower bounds on the dilation of plane spanners"
    - "recognition and complexity of point visibility graphs"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"

Connected through hyperedge HE-2 (induced by source paper "drawing planar graphs with few segments on a polynomial grid"):
  with members:
    - "drawing planar graphs with few geometric primitives"
    - "drawing graphs on few circles and few spheres"
    - "experimental analysis of the accessibility of drawings with few segments"
    - "the complexity of drawing graphs on few lines and few planes"
    - "strongly monotone drawings of planar graphs"
    - "drawing graphs on few lines and few planes"
    - "on monotone drawings of trees"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"

Connected through hyperedge HE-3 (induced by source paper "uniform 2d monotone minimum spanning graphs"):
  with members:
    - "angle monotone graphs construction and local routing"
    - "drawing a rooted tree as a rooted y monotone minimum spanning tree"
    - "simple compact monotone tree drawings"
    - "angle monotone paths in non obtuse triangulations"
    - "rooted uniform monotone minimum spanning trees"
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"

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

Connected through hyperedge HE-5 (induced by source paper "monotone drawings of k inner planar graphs"):
  with members:
    - "simple compact monotone tree drawings"
    - "on monotone drawings of trees"
    - "orderly spanning trees with applications"

Connected through hyperedge HE-6 (induced by source paper "simple compact monotone tree drawings"):
  with members:
    - "on monotone drawings of trees"

Connected through hyperedge HE-7 (induced by source paper "rooted uniform monotone minimum spanning trees"):
  with members:
    - "strongly monotone drawings of planar graphs"
    - "gabriel triangulations and angle monotone graphs local routing and recognition"
    - "on monotone drawings of trees"
    - "on self approaching and increasing chord drawings of 3 connected planar graphs"
    - "increasing chord graphs on point sets"
    - "self approaching graphs"
    - "monotone grid drawings of planar 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)