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: "koalja from data plumbing to smart workspaces in the extended cloud"
  Abstract: Koalja describes a generalized data wiring or `pipeline' platform, built on top of Kubernetes, for plugin user code. Koalja makes the Kubernetes underlay transparent to users (for a `serverless' experience), and offers a breadboarding experience for development of data sharing circuitry, to commoditize its gradual promotion to a production system, with a minimum of infrastructure knowledge. Enterprise grade metadata are captured as data payloads flow through the circuitry, allowing full tracing of provenance and forensic reconstruction of transactional processes, down to the versions of software that led to each outcome. Koalja attends to optimizations for avoiding unwanted processing and transportation of data, that are rapidly becoming sustainability imperatives. Thus one can minimize energy expenditure and waste, and design with scaling in mind, especially with regard to edge computing, to accommodate an Internet of Things, Network Function Virtualization, and more.

Connected through hyperedge HE-1 (induced by source paper "locality statefulness and causality in distributed information systems concerning the scale dependence of system promises"):
  with members:
    - "from observability to significance in distributed information systems"
    - "spacetime entangled networks i relativity and observability of stepwise consensus"
    - "spacetimes with semantics"
    - "on the theory of system administration"

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)