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: "revisiting the problem of searching on a line"
  Abstract: We revisit the problem of searching for a target at an unknown location on a line when given upper and lower bounds on the distance D that separates the initial position of the searcher from the target. Prior to this work, only asymptotic bounds were known for the optimal competitive ratio achievable by any search strategy in the worst case. We present the first tight bounds on the exact optimal competitive ratio achievable, parameterized in terms of the given bounds on D, along with an optimal search strategy that achieves this competitive ratio. We prove that this optimal strategy is unique. We characterize the conditions under which an optimal strategy can be computed exactly and, when it cannot, we explain how numerical methods can be used efficiently. In addition, we answer several related open questions, including the maximal reach problem, and we discuss how to generalize these results to m rays, for any m >= 2.

Connected through hyperedge HE-1 (induced by source paper "priority evacuation from a disk using mobile robots"):
  with members:
    - "god save the queen"
    - "fast two robot disk evacuation with wireless communication"
    - "search and fetch with 2 robots on a disk wireless and face to face communication models"
    - "fast rendezvous on a cycle by agents with different speeds"
    - "online searching with turn cost"

Connected through hyperedge HE-2 (induced by source paper "lower bounds for searching robots some faulty"):
  with members:
    - "search on a line by byzantine robots"
    - "collaborative search on the plane without communication"
    - "online searching with turn cost"
    - "optimal constructions of hybrid algorithms"

Connected through hyperedge HE-3 (induced by source paper "linear search with terrain dependent speeds"):
  with members:
    - "evacuating robots from a disk using face to face communication"
    - "time varying graphs and dynamic networks"
    - "online searching with turn cost"

Connected through hyperedge HE-4 (induced by source paper "search on a line by byzantine robots"):
  with members:
    - "time varying graphs and dynamic networks"
    - "online searching with turn cost"

Connected through hyperedge HE-5 (induced by source paper "fast two robot disk evacuation with wireless communication"):
  with members:
    - "fast rendezvous on a cycle by agents with different speeds"

Connected through hyperedge HE-6 (induced by source paper "tradeoffs between cost and information for rendezvous and treasure hunt"):
  with members:
    - "time versus cost tradeoffs for deterministic rendezvous in networks"
    - "fast rendezvous with advice"
    - "how to meet asynchronously at polynomial cost"
    - "faster treasure hunt and better strongly universal exploration sequences"
    - "how to meet asynchronously almost everywhere"

Connected through hyperedge HE-7 (induced by source paper "towards a general framework for searching on a line and searching on m rays"):
  with members:
    - "online searching with turn cost"

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)