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 of information in a multiple access channel with heterogeneous traffic and an energy harvesting node"
  Abstract: Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) with two source nodes transmitting different types of data to a common destination. The first node is grid-connected and its data packets arrive in a bursty manner, and at each time slot it transmits one packet with some probability. Another energy harvesting (EH) sensor node generates a new status update with a certain probability whenever it is charged. We derive the delay of the grid-connected node and the AoI of the EH sensor as functions of different parameters in the system. The results show that the mutual interference has a non-trivial impact on the delay and age performance of the two nodes.

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 "optimal control of status updates in a multiple access channel with stability constraints"):
  with members:
    - "optimal status updating with a finite battery energy harvesting source"
    - "control of status updates for energy harvesting devices that monitor processes with alarms"
    - "optimal status updating for an energy harvesting sensor with a noisy channel"
    - "age of information and throughput in a shared access network with heterogeneous traffic"
    - "coded status updates in an energy harvesting erasure channel"
    - "age of information performance of multiaccess strategies with packet management"
    - "optimizing information freshness in wireless networks under general interference constraints"
    - "age minimal online policies for energy harvesting sensors with random battery recharges"

Connected through hyperedge HE-3 (induced by source paper "delay violation probability and age of information interplay in the two user multiple access channel"):
  with members:
    - "sampling for data freshness optimization non linear age functions"
    - "age of information and throughput in a shared access network with heterogeneous traffic"
    - "optimal policies for status update generation in a wireless system with heterogeneous traffic"
    - "qos provisioning in large wireless networks"
    - "reliable transmission of short packets through queues and noisy channels under latency and peak age violation guarantees"
    - "optimizing information freshness in wireless networks under general interference constraints"
    - "age and value of information non linear age case"
    - "on the delay performance of interference channels"

Connected through hyperedge HE-4 (induced by source paper "control of status updates for energy harvesting devices that monitor processes with alarms"):
  with members:
    - "optimal policies for status update generation in a wireless system with heterogeneous traffic"
    - "age minimal online policies for energy harvesting sensors with random battery recharges"
    - "scheduling status updates to minimize age of information with an energy harvesting sensor"
    - "optimal status update for age of information minimization with an energy harvesting source"
    - "age and value of information non linear age case"
    - "age minimal transmission in energy harvesting two hop networks"
    - "remote estimation of the wiener process over a channel with random delay"
    - "update or wait how to keep your data fresh"

Connected through hyperedge HE-5 (induced by source paper "age of information performance of multiaccess strategies with packet management"):
  with members:
    - "a general formula for the stationary distribution of the age of information and its application to single server queues"
    - "minimizing the age of information noma or oma"
    - "average peak age of information minimization in uav assisted iot networks"
    - "age of information in multicast networks with multiple update streams"
    - "timely updates in energy harvesting two hop networks offline and online policies"
    - "age of information in a network of preemptive servers"
    - "scheduling policies for minimizing age of information in broadcast wireless networks"
    - "the age of information in networks moments distributions and sampling"

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)