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: "optimal deterministic ring exploration with oblivious asynchronous robots"
  Abstract: We consider the problem of exploring an anonymous unoriented ring of size n by k identical, oblivious, asynchronous mobile robots, that are unable to communicate, yet have the ability to sense their environment and take decisions based on their local view. Previous works in this weak scenario prove that k must not divide n for a deterministic solution to exist. Also, it is known that the minimum number of robots (either deterministic or probabilistic) to explore a ring of size n is 4. An upper bound of 17 robots holds in the deterministic case while 4 probabilistic robots are sufficient. In this paper, we close the complexity gap in the deterministic setting, by proving that no deterministic exploration is feasible with less than five robots, and that five robots are sufficient for any n that is coprime with five. Our protocol completes exploration in O(n) robot moves, which is also optimal.

Connected through hyperedge HE-1 (induced by source paper "distributed pattern formation in a ring"):
  with members:
    - "schelling games on graphs"
    - "hedonic diversity games"
    - "schelling segregation with strategic agents"
    - "arbitrary pattern formation on infinite grid by asynchronous oblivious robots"
    - "exponential segregation in a two dimensional schelling model with tolerant individuals"
    - "simple and efficient local codes for distributed stable network construction"
    - "an analysis of one dimensional schelling segregation"

Connected through hyperedge HE-2 (induced by source paper "dispersion of mobile robots the power of randomness"):
  with members:
    - "efficient dispersion of mobile robots on graphs"
    - "dispersion of mobile robots a study of memory time trade offs"
    - "optimal grid exploration by asynchronous oblivious robots"

Connected through hyperedge HE-3 (induced by source paper "implicit function computation by oblivious mobile robots"):
  with members:
    - "on the synthesis of mobile robots algorithms the case of ring gathering"
    - "gathering an even number of robots in an odd ring without global multiplicity detection"

Connected through hyperedge HE-4 (induced by source paper "universal systems of oblivious mobile robots"):
  with members:
    - "on the synthesis of mobile robots algorithms the case of ring gathering"
    - "gathering an even number of robots in an odd ring without global multiplicity detection"

Connected through hyperedge HE-5 (induced by source paper "ring exploration with oblivious myopic robots"):
  with members:
    - "asynchronous mobile robot gathering from symmetric configurations without global multiplicity detection"
    - "optimal probabilistic ring exploration by asynchronous oblivious robots"
    - "circle formation of weak mobile robots"

Connected through hyperedge HE-6 (induced by source paper "optimal grid exploration by asynchronous oblivious robots"):
  with members:
    - "asynchronous mobile robot gathering from symmetric configurations without global multiplicity detection"
    - "optimal probabilistic ring exploration by asynchronous oblivious robots"
    - "circle formation of weak mobile robots"

Connected through hyperedge HE-7 (induced by source paper "asynchronous mobile robot gathering from symmetric configurations without global multiplicity detection"):
  with members:
    - "optimal probabilistic ring exploration by asynchronous oblivious robots"

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)