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 reverse carpooling over wireless networks a distributed optimization approach"
  Abstract: We focus on a particular form of network coding, reverse carpooling, in a wireless network where the potentially coded transmitted messages are to be decoded immediately upon reception. The network is fixed and known, and the system performance is measured in terms of the number of wireless broadcasts required to meet multiple unicast demands. Motivated by the structure of the coding scheme, we formulate the problem as a linear program by introducing a flow variable for each triple of connected nodes. This allows us to have a formulation polynomial in the number of nodes. Using dual decomposition and projected subgradient method, we present a decentralized algorithm to obtain optimal routing schemes in presence of coding opportunities. We show that the primal sub-problem can be expressed as a shortest path problem on an \emph{edge-graph}, and the proposed algorithm requires each node to exchange information only with its neighbors.

Connected through hyperedge HE-1 (induced by source paper "delay aware wireless network coding in adversarial traffic"):
  with members:
    - "online energy efficient scheduling for timely information downloads in mobile networks"
    - "network utility maximization in adversarial environments"
    - "adversarial network coding"
    - "online ski rental for on off scheduling of energy harvesting base stations"
    - "throughput delay analysis of random linear network coding for wireless broadcasting"
    - "network coding aware queue management for tcp flows over coded wireless networks"

Connected through hyperedge HE-2 (induced by source paper "to send or not to send an optimal stopping approach to network coding in multi hop wireless networks"):
  with members:
    - "network coding aware queue management for tcp flows over coded wireless networks"

Connected through hyperedge HE-3 (induced by source paper "optimization based linear network coding for general connections of continuous flows"):
  with members:
    - "a linear network code construction for general integer connections based on the constraint satisfaction problem"
    - "on multi source networks enumeration rate region computation and hierarchy"
    - "the two unicast problem"
    - "decentralized constraint satisfaction"
    - "index coding an interference alignment perspective"
    - "scalar linear solvability of matroidal networks associated with representable matroids"
    - "on the index coding problem and its relation to network coding and matroid theory"
    - "minimum cost multicast over coded packet networks"

Connected through hyperedge HE-4 (induced by source paper "two way transmission capacity of wireless ad hoc networks"):
  with members:
    - "an overview of the transmission capacity of wireless networks"
    - "transmission capacity of ad hoc networks with multiple antennas using transmit stream adaptation and interference cancelation"
    - "the impact of channel feedback on opportunistic relay selection for hybrid arq in wireless networks"
    - "spatial interference cancellation for multi antenna mobile ad hoc networks"
    - "bandwidth partitioning in decentralized wireless networks"
    - "spectrum sharing between wireless networks"
    - "fractional power control for decentralized wireless networks"
    - "transmission capacity of ad hoc networks with spatial diversity"

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)