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: "fast space optimal leader election in population protocols"
  Abstract: The model of population protocols refers to the growing in popularity theoretical framework suitable for studying pairwise interactions within a large collection of simple indistinguishable entities, frequently called agents. In this paper the emphasis is on the space complexity in fast leader election via population protocols governed by the random scheduler, which uniformly at random selects pairwise interactions from the population of n agents.   The main result of this paper is a new fast and space optimal leader election protocol. The new protocol operates in parallel time O(log2 n) equivalent to O(n log2 n) sequential pairwise interactions, in which each agent utilises O(log log n) states. This double logarithmic space utilisation matches asymptotically the lower bound [Equation] log log n on the number of states utilised by agents in any leader election algorithm with the running time [Equation], see [7].   Our solution relies on the concept of phase clocks, a fundamental synchronisation and coordination tool in the field of Distributed Computing. We propose a new fast and robust population protocol for initialisation of phase clocks to be run simultaneously in multiple modes and intertwined with the leader election process. We also provide the reader with the relevant formal argumentation indicating that our solution is always correct and fast with high probability.

Connected through hyperedge HE-1 (induced by source paper "robust comparison in population protocols"):
  with members:
    - "majority stabilization in population protocols"
    - "robust detection in leak prone population protocols"
    - "space optimal majority in population protocols"
    - "time space trade offs in population protocols"
    - "determining majority in networks with local interactions and very small local memory"
    - "passively mobile communicating machines that use restricted space"
    - "the computational power of population protocols"

Connected through hyperedge HE-2 (induced by source paper "noidy conmunixatipn on the convergence of the averaging population protocol"):
  with members:
    - "almost logarithmic time space optimal leader election in population protocols"
    - "erasure correction for noisy radio networks"
    - "limits for rumor spreading in stochastic populations"
    - "ignore or comply on breaking symmetry in consensus"
    - "broadcasting in noisy radio networks"
    - "space optimal majority in population protocols"
    - "rapid asynchronous plurality consensus"
    - "efficient k party voting with two choices"

Connected through hyperedge HE-3 (induced by source paper "composable computation in discrete chemical reaction networks"):
  with members:
    - "efficient size estimation and impossibility of termination in uniform dense population protocols"
    - "output oblivious stochastic chemical reaction networks"
    - "composable rate independent computation in continuous chemical reaction networks"
    - "hardness of computing and approximating predicates and functions with leaderless population protocols"
    - "space optimal majority in population protocols"
    - "time space trade offs in molecular computation"
    - "time space trade offs in population protocols"
    - "stable leader election in population protocols requires linear time"

Connected through hyperedge HE-4 (induced by source paper "on counting the population size"):
  with members:
    - "exact size counting in uniform population protocols in nearly logarithmic time"
    - "efficient size estimation and impossibility of termination in uniform dense population protocols"
    - "simple load balancing"
    - "space optimal majority in population protocols"
    - "time space trade offs in population protocols"
    - "stable leader election in population protocols requires linear time"
    - "determining majority in networks with local interactions and very small local memory"
    - "the computational power of population protocols"

Connected through hyperedge HE-5 (induced by source paper "leader election requires logarithmic time in population protocols"):
  with members:
    - "almost logarithmic time space optimal leader election in population protocols"
    - "logarithmic expected time leader election in population protocol model"
    - "space optimal majority in population protocols"
    - "time space trade offs in population protocols"
    - "stable leader election in population protocols requires linear time"

Connected through hyperedge HE-6 (induced by source paper "efficient size estimation and impossibility of termination in uniform dense population protocols"):
  with members:
    - "on counting the population size"
    - "population protocols are fast"
    - "almost logarithmic time space optimal leader election in population protocols"
    - "logarithmic expected time leader election in population protocol model"
    - "hardness of computing and approximating predicates and functions with leaderless population protocols"
    - "space optimal majority in population protocols"
    - "time space trade offs in population protocols"
    - "time and space optimal counting in population protocols"

Connected through hyperedge HE-7 (induced by source paper "almost logarithmic time space optimal leader election in population protocols"):
  with members:
    - "logarithmic expected time leader election in population protocol model"
    - "space optimal majority in population protocols"
    - "time space trade offs in population protocols"
    - "time vs information tradeoffs for leader election in anonymous trees"
    - "on convergence and threshold properties of discrete lotka volterra population protocols"
    - "stable leader election in population protocols requires linear time"
    - "plurality consensus in the gossip model"
    - "leader election for anonymous asynchronous agents in arbitrary networks"

Connected through hyperedge HE-8 (induced by source paper "hardness of computing and approximating predicates and functions with leaderless population protocols"):
  with members:
    - "robustness of expressivity in chemical reaction networks"
    - "democratic existential and consensus based output conventions in stable computation by chemical reaction networks"
    - "how many cooks spoil the soup"
    - "stable leader election in population protocols requires linear time"
    - "leaderless deterministic chemical reaction networks"
    - "timing in chemical reaction networks"
    - "deterministic function computation with chemical reaction networks"
    - "passively mobile communicating machines that use restricted space"

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.DC(Distributed, Parallel, and Cluster Computing)