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: "flexible paxos quorum intersection revisited"
  Abstract: Distributed consensus is integral to modern distributed systems. The widely adopted Paxos algorithm uses two phases, each requiring majority agreement, to reliably reach consensus. In this paper, we demonstrate that Paxos, which lies at the foundation of many production systems, is conservative. Specifically, we observe that each of the phases of Paxos may use non-intersecting quorums. Majority quorums are not necessary as intersection is required only across phases. #R##N#Using this weakening of the requirements made in the original formulation, we propose Flexible Paxos, which generalizes over the Paxos algorithm to provide flexible quorums. We show that Flexible Paxos is safe, efficient and easy to utilize in existing distributed systems. We conclude by discussing the wide reaching implications of this result. Examples include improved availability from reducing the size of second phase quorums by one when the number of acceptors is even and utilizing small disjoint phase-2 quorums to speed up the steady-state.

Connected through hyperedge HE-1 (induced by source paper "pigpaxos devouring the communication bottlenecks in distributed consensus"):
  with members:
    - "cross chain deals and adversarial commerce"
    - "hyperledger fabric a distributed operating system for permissioned blockchains"
    - "wpaxos wide area network flexible consensus"
    - "casper the friendly finality gadget"

Connected through hyperedge HE-2 (induced by source paper "bipartisan paxos a modular state machine replication protocol"):
  with members:
    - "speeding up consensus by chasing fast decisions"
    - "exploiting commutativity for practical fast replication"

Connected through hyperedge HE-3 (induced by source paper "rmwpaxos fault tolerant in place consensus sequences"):
  with members:
    - "caspaxos replicated state machines without logs"
    - "bizur a key value consensus algorithm for scalable file systems"

Connected through hyperedge HE-4 (induced by source paper "flexible byzantine fault tolerance"):
  with members:
    - "dfinity technology overview series consensus system"
    - "sbft a scalable and decentralized trust infrastructure"
    - "hotstuff bft consensus in the lens of blockchain"
    - "sbft a scalable decentralized trust infrastructure for blockchains"
    - "casper the friendly finality gadget"
    - "algorand the efficient and democratic ledger"
    - "xft practical fault tolerance beyond crashes"

Connected through hyperedge HE-5 (induced by source paper "caspaxos replicated state machines without logs"):
  with members:
    - "wpaxos ruling the archipelago with fast consensus"
    - "bizur a key value consensus algorithm for scalable file systems"

Connected through hyperedge HE-6 (induced by source paper "paxos made epr decidable reasoning about distributed protocols"):
  with members:
    - "bounded quantifier instantiation for checking inductive invariants"
    - "a short counterexample property for safety and liveness verification of fault tolerant distributed algorithms"
    - "counting constraints in flat array fragments"
    - "formal verification of multi paxos for distributed consensus"

Connected through hyperedge HE-7 (induced by source paper "wpaxos wide area network flexible consensus"):
  with members:
    - "wpaxos ruling the archipelago with fast consensus"
    - "bizur a key value consensus algorithm for scalable file systems"

Connected through hyperedge HE-8 (induced by source paper "wpaxos ruling the archipelago with fast consensus"):
  with members:
    - "bizur a key value consensus algorithm for scalable file systems"

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)