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: "linear search with terrain dependent speeds"
  Abstract: We revisit the linear search problem where a robot, initially placed at the origin on an infinite line, tries to locate a stationary target placed at an unknown position on the line. Unlike previous studies, in which the robot travels along the line at a constant speed, we consider settings where the robot's speed can depend on the direction of travel along the line, or on the profile of the terrain, e.g. when the line is inclined, and the robot can accelerate. Our objective is to design search algorithms that achieve good competitive ratios for the time spent by the robot to complete its search versus the time spent by an omniscient robot that knows the location of the target. We consider several new robot mobility models in which the speed of the robot depends on the terrain.These include 1) different constant speeds for different directions, 2) speed with constant acceleration and/or variability depending on whether a certain segment has already been searched, 3) speed dependent on the incline of the terrain. We provide both upper and lower bounds on the competitive ratios of search algorithms for these models, and in many cases, we derive optimal algorithms for the search time.

Connected through hyperedge HE-1 (induced by source paper "probabilistically faulty searching on a half line"):
  with members:
    - "energy consumption of group search on a line"
    - "average case worst case tradeoffs for evacuating 2 robots from the disk in the face to face model"
    - "fast two robot disk evacuation with wireless communication"
    - "search and fetch with 2 robots on a disk wireless and face to face communication models"
    - "further connections between contract scheduling and ray searching problems"
    - "collaborative search on the plane without communication"
    - "online searching with turn cost"

Connected through hyperedge HE-2 (induced by source paper "energy consumption of group search on a line"):
  with members:
    - "average case worst case tradeoffs for evacuating 2 robots from the disk in the face to face model"
    - "god save the queen"
    - "priority evacuation from a disk using mobile robots"
    - "search on a line by byzantine robots"
    - "fast two robot disk evacuation with wireless communication"
    - "search and fetch with 2 robots on a disk wireless and face to face communication models"
    - "evacuating robots from a disk using face to face communication"
    - "online searching with turn cost"

Connected through hyperedge HE-3 (induced by source paper "time energy tradeoffs for evacuation by two robots in the wireless model"):
  with members:
    - "average case worst case tradeoffs for evacuating 2 robots from the disk in the face to face model"
    - "god save the queen"
    - "priority evacuation from a disk using mobile robots"
    - "search on a line by byzantine robots"
    - "search and fetch with 2 robots on a disk wireless and face to face communication models"
    - "evacuating robots from a disk using face to face communication"
    - "online searching with turn cost"

Connected through hyperedge HE-4 (induced by source paper "parallel search with no coordination"):
  with members:
    - "parallel exhaustive search without coordination"
    - "memory lower bounds for randomized collaborative search and applications to biology"
    - "collaborative search on the plane without communication"

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)