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: "in pursuit of the dynamic optimality conjecture"
  Abstract: In 1985, Sleator and Tarjan introduced the splay tree, a self-adjusting binary search tree algorithm. Splay trees were conjectured to perform within a constant factor as any offline rotation-based search tree algorithm on every sufficiently long sequence---any binary search tree algorithm that has this property is said to be dynamically optimal. However, currently neither splay trees nor any other tree algorithm is known to be dynamically optimal. Here we survey the progress that has been made in the almost thirty years since the conjecture was first formulated, and present a binary search tree algorithm that is dynamically optimal if any binary search tree algorithm is dynamically optimal.

Connected through hyperedge HE-1 (induced by source paper "new paths from splay to dynamic optimality"):
  with members:
    - "splaying preorders and postorders"
    - "weighted dynamic finger in binary search trees"
    - "the landscape of bounds for binary search trees"
    - "a linear potential function for pairing heaps"
    - "a study on splay trees"
    - "pattern avoiding access in binary search trees"
    - "self adjusting binary search trees what makes them tick"
    - "combining binary search trees"

Connected through hyperedge HE-2 (induced by source paper "belga b trees"):
  with members:
    - "weighted dynamic finger in binary search trees"
    - "multi finger binary search trees"
    - "the landscape of bounds for binary search trees"
    - "combining binary search trees"
    - "the power and limitations of static binary search trees with lazy finger"
    - "the fresh finger property"
    - "worst case optimal tree layout in external memory"

Connected through hyperedge HE-3 (induced by source paper "competitive online search trees on trees"):
  with members:
    - "weighted dynamic finger in binary search trees"
    - "on the tree search problem with non uniform costs"
    - "deterministic and probabilistic binary search in graphs"
    - "self adjusting binary search trees what makes them tick"
    - "the power and limitations of static binary search trees with lazy finger"
    - "searching in dynamic tree like partial orders"

Connected through hyperedge HE-4 (induced by source paper "smooth heaps and a dual view of self adjusting data structures"):
  with members:
    - "weighted dynamic finger in binary search trees"
    - "improved bounds for multipass pairing heaps and path balanced binary search trees"
    - "pairing heaps the forward variant"
    - "the landscape of bounds for binary search trees"
    - "pattern avoiding access in binary search trees"
    - "greedy is an almost optimal deque"
    - "a back to basics empirical study of priority queues"
    - "a tight lower bound for decrease key in the pure heap model"

Connected through hyperedge HE-5 (induced by source paper "weighted dynamic finger in binary search trees"):
  with members:
    - "a global geometric view of splaying"
    - "combining binary search trees"
    - "the power and limitations of static binary search trees with lazy finger"
    - "upper bounds for maximally greedy binary search trees"
    - "de amortizing binary search trees"

Connected through hyperedge HE-6 (induced by source paper "multi finger binary search trees"):
  with members:
    - "fusible hsts and the randomized k server conjecture"
    - "on dynamic optimality for binary search trees"

Connected through hyperedge HE-7 (induced by source paper "improved bounds for multipass pairing heaps and path balanced binary search trees"):
  with members:
    - "improved upper bounds for pairing heaps"

Connected through hyperedge HE-8 (induced by source paper "pairing heaps the forward variant"):
  with members:
    - "a tight lower bound for decrease key in the pure heap model"
    - "improved upper bounds for pairing heaps"

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)