human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "a study on splay trees"):
  Abstract: We study the dynamic optimality conjecture, which predicts that splay trees are a form of universally efficient binary search tree, for any access sequence. We reduce this claim to a regular access bound, which seems plausible and might be easier to prove. This approach may be useful to establish dynamic optimality.

Includes members:
  Member "new paths from splay to dynamic optimality":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "splaying preorders and postorders")
  Member "self adjusting binary search trees what makes them tick":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "new paths from splay to dynamic optimality")
  Member "combining binary search trees":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "new paths from splay to dynamic optimality")
  Member "in pursuit of the dynamic optimality conjecture":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "new paths from splay to dynamic optimality")
  Member "the fresh finger property":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "new paths from splay to dynamic optimality")
  Member "upper bounds for maximally greedy binary search trees":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "new paths from splay to dynamic optimality")
  Member "splay trees davenport schinzel sequences and the deque conjecture":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "splaying preorders and postorders")

Question: Please tell me which class the source paper 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)