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: "the power and limitations of static binary search trees with lazy finger"
  Abstract: A static binary search tree where every search starts from where the previous one ends (lazy finger) is considered. Such a search method is more powerful than that of the classic optimal static trees, where every search starts from the root (root finger), and less powerful than when rotations are allowed---where finding the best rotation based tree is the topic of the dynamic optimality conjecture of Sleator and Tarjan. The runtime of the classic root-finger tree can be expressed in terms of the entropy of the distribution of the searches, but we show that this is not the case for the optimal lazy finger tree. A non-entropy based asymptotically-tight expression for the runtime of the optimal lazy finger trees is derived, and a dynamic programming-based method is presented to compute the optimal tree.

Connected through hyperedge HE-1 (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"
    - "in pursuit of the dynamic optimality conjecture"
    - "the fresh finger property"
    - "worst case optimal tree layout in external memory"

Connected through hyperedge HE-2 (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"
    - "in pursuit of the dynamic optimality conjecture"
    - "searching in dynamic tree like partial orders"

Connected through hyperedge HE-3 (induced by source paper "weighted dynamic finger in binary search trees"):
  with members:
    - "a global geometric view of splaying"
    - "combining binary search trees"
    - "in pursuit of the dynamic optimality conjecture"
    - "upper bounds for maximally greedy binary search trees"
    - "de amortizing binary search trees"

Connected through hyperedge HE-4 (induced by source paper "combining binary search trees"):
  with members:
    - "improved upper bounds for pairing heaps"
    - "de amortizing binary search trees"
    - "layered working set trees"

Connected through hyperedge HE-5 (induced by source paper "in pursuit of the dynamic optimality conjecture"):
  with members:
    - "combining binary search trees"
    - "upper bounds for maximally greedy binary search trees"
    - "de amortizing binary search trees"

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)