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: "age minimization in energy harvesting communications energy controlled delays"
  Abstract: We consider an energy harvesting source that is collecting measurements from a physical phenomenon and sending updates to a destination within a communication session time. Updates incur transmission delays that are function of the energy used in their transmission. The more transmission energy used per update, the faster it reaches the destination. The goal is to transmit updates in a timely manner, namely, such that the total age of information is minimized by the end of the communication session, subject to energy causality constraints. We consider two variations of this problem. In the first setting, the source controls the number of measurement updates, their transmission times, and the amounts of energy used in their transmission (which govern their delays, or service times, incurred). In the second setting, measurement updates externally arrive over time, and therefore the number of updates becomes fixed, at the expense of adding data causality constraints to the problem. We characterize age-minimal policies in the two settings, and discuss the relationship of the age of information metric to other metrics used in the energy harvesting literature.

Connected through hyperedge HE-1 (induced by source paper "who should google scholar update more often"):
  with members:
    - "optimal selective encoding for timely updates"
    - "trading off computation with transmission in status update systems"
    - "average peak age of information minimization in uav assisted iot networks"
    - "a reinforcement learning framework for optimizing age of information in rf powered communication systems"
    - "age of information aware cache updating with file and age dependent update durations"
    - "reducing age of information for computation intensive messages via packet replacement"
    - "timely distributed computation with stragglers"
    - "age of information in multicast networks with multiple update streams"

Connected through hyperedge HE-2 (induced by source paper "partial updates losing information for freshness"):
  with members:
    - "optimal selective encoding for timely updates"
    - "trading off computation with transmission in status update systems"
    - "on timely channel coding with hybrid arq"
    - "reducing age of information for computation intensive messages via packet replacement"
    - "timely distributed computation with stragglers"
    - "age of information in multicast networks with multiple update streams"
    - "age of information for updates with distortion"
    - "using erasure feedback for online timely updating with an energy harvesting sensor"

Connected through hyperedge HE-3 (induced by source paper "optimal selective encoding for timely updates"):
  with members:
    - "trading off computation with transmission in status update systems"
    - "on timely channel coding with hybrid arq"
    - "reducing age of information for computation intensive messages via packet replacement"
    - "timely distributed computation with stragglers"
    - "age of information in multicast networks with multiple update streams"
    - "age of information in g g 1 1 systems age expressions bounds special cases and optimization"
    - "age of information for updates with distortion"
    - "using erasure feedback for online timely updating with an energy harvesting sensor"

Connected through hyperedge HE-4 (induced by source paper "timely updates in energy harvesting two hop networks offline and online policies"):
  with members:
    - "using erasure feedback for online timely updating with an energy harvesting sensor"
    - "online timely status updates with erasures for energy harvesting sensors"
    - "optimal status updating for an energy harvesting sensor with a noisy channel"
    - "coded status updates in an energy harvesting erasure channel"
    - "status updates in a multi stream m g 1 1 preemptive queue"
    - "age minimal online policies for energy harvesting sensors with random battery recharges"
    - "sending information through status updates"
    - "age minimal transmission for energy harvesting sensors with finite batteries online policies"

Connected through hyperedge HE-5 (induced by source paper "age of information scaling in large networks with hierarchical cooperation"):
  with members:
    - "age of information for discrete time queues"
    - "waiting before serving a companion to packet management in status update systems"
    - "age of information in multicast networks with multiple update streams"
    - "online timely status updates with erasures for energy harvesting sensors"
    - "timely status update in massive iot systems decentralized scheduling for wireless uplinks"
    - "coded status updates in an energy harvesting erasure channel"
    - "age of information in g g 1 1 systems"
    - "age minimal online policies for energy harvesting sensors with random battery recharges"

Connected through hyperedge HE-6 (induced by source paper "using erasure feedback for online timely updating with an energy harvesting sensor"):
  with members:
    - "online timely status updates with erasures for energy harvesting sensors"
    - "status updates in a multi stream m g 1 1 preemptive queue"
    - "age of information minimization for an energy harvesting source with updating erasures with and without feedback"
    - "sending information through status updates"
    - "delay and peak age violation probability in short packet transmissions"
    - "content based status updates"
    - "timely lossless source coding for randomly arriving symbols"
    - "age minimal transmission for energy harvesting sensors with finite batteries online policies"

Connected through hyperedge HE-7 (induced by source paper "waiting before serving a companion to packet management in status update systems"):
  with members:
    - "a general formula for the stationary distribution of the age of information and its application to single server queues"
    - "age optimal updates of multiple information flows"
    - "the age of information in networks moments distributions and sampling"
    - "to skip or to switch minimizing age of information under link capacity constraint"
    - "the age of updates in a simple relay network"
    - "sending information through status updates"
    - "optimal status update for age of information minimization with an energy harvesting source"
    - "the age of information in multihop networks"

Connected through hyperedge HE-8 (induced by source paper "closed form whittle s index enabled random access for timely status update"):
  with members:
    - "age of information in g g 1 1 systems age expressions bounds special cases and optimization"
    - "age of information scaling in large networks with hierarchical cooperation"
    - "using erasure feedback for online timely updating with an energy harvesting sensor"
    - "can decentralized status update achieve universally near optimal age of information in wireless multiaccess channels"
    - "information aging through queues a mutual information perspective"
    - "delay performance of multi antenna multicasting in wireless networks"
    - "towards massive connectivity support for scalable mmtc communications in 5g networks"
    - "age optimal sampling and transmission scheduling in multi source 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.IT(Information Theory)