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: "edge and central cloud computing a perfect pairing for high energy efficiency and low latency"
  Abstract: In this paper, we study the coexistence and synergy between edge and central cloud computing in heterogeneous cellular networks (HetNets), in which multi-antenna small base stations (SBSs) empowered by clouds at the edge offer computing services for user equipments (UEs), whereas a macro base station (MBS) provides computing services from a central cloud via a high-speed backhaul. With processing latency constraints at the edge cloud and backhaul, we aim to minimize the network energy consumption (the energy used for task offloading as well as computation) through jointly optimizing the cloud selection, the UE's transmit power, the SBS's receive beamformer, and the SBS's transmit covariance matrix. We devise a tractable solution that can achieve great performance gain over conventional schemes. With large-scale antennas at the MBS, the massive multiple-input multiple-output (MIMO) backhaul can significantly reduce the complexity of our algorithm and obtain even better performance.

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.NI(Networking and Internet Architecture)