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: "effect of user mobility on the performance of device to device networks with distributed caching"
  Abstract: We consider a distributed caching device-to-device (D2D) network in which a user's file of interest is cached as several portions in the storage of other devices in the network. Assuming that the user needs to obtain all these file portions, the portions cached farther away naturally become the performance bottleneck. This is due to the fact that dominant interferers may be closer to the receiver than the serving device. Using a simple stochastic geometry model, we concretely demonstrate that this bottleneck can be loosened if the users are mobile. Gains obtained from mobility are quantified in terms of coverage probability.

Connected through hyperedge HE-1 (induced by source paper "mobility aware content preference learning in decentralized caching networks"):
  with members:
    - "decentralized multi task learning based on extreme learning machines"
    - "user preference learning based edge caching for fog radio access network"
    - "exploiting mobility in cache assisted d2d networks performance analysis and optimization"
    - "learning to reweight examples for robust deep learning"
    - "mobility and popularity aware coded small cell caching"
    - "caching policy for cache enabled d2d communications by learning user preference"
    - "context aware proactive content caching with service differentiation in wireless networks"
    - "optimizing content caching to maximize the density of successful receptions in device to device networking"

Connected through hyperedge HE-2 (induced by source paper "exploiting moving intelligence delay optimized computation offloading in vehicular fog networks"):
  with members:
    - "learning based task offloading for vehicular cloud computing systems"
    - "coding for distributed fog computing"
    - "a survey on mobile edge computing the communication perspective"
    - "towards low latency and ultra reliable vehicle to vehicle communication"
    - "task replication for deadline constrained vehicular cloud computing optimal policy performance analysis and implications on road traffic"
    - "effect of retransmissions on optimal caching in cache enabled small cell networks"

Connected through hyperedge HE-3 (induced by source paper "exploiting mobility in cache assisted d2d networks performance analysis and optimization"):
  with members:
    - "mobility increases the data offloading ratio in d2d caching networks"
    - "wireless device to device caching networks basic principles and system performance"
    - "mobility aware caching for content centric wireless networks modeling and methodology"
    - "mobility aware caching in d2d networks"
    - "the effects of mobility on the hit performance of cached d2d networks"
    - "optimal geographic caching in cellular networks"
    - "backhaul aware caching placement for wireless networks"
    - "fundamental limits of caching in wireless d2d networks"

Connected through hyperedge HE-4 (induced by source paper "outage correlation in finite and clustered wireless networks"):
  with members:
    - "downlink coordinated joint transmission for mutual information accumulation"
    - "interference functionals in poisson networks"
    - "modeling and performance analysis of clustered device to device networks"
    - "correlations of interference and link successes in heterogeneous cellular networks"
    - "managing interference correlation through random medium access"
    - "effect of spatial interference correlation on the performance of maximum ratio combining"
    - "a direct approach to computing spatially averaged outage probability"
    - "diversity polynomials for the analysis of temporal correlations in wireless networks"

Connected through hyperedge HE-5 (induced by source paper "spatial alignment of coding and modulation helps content delivery"):
  with members:
    - "sinr outage evaluation in cellular networks saddle point approximation spa using normal inverse gaussian nig distribution"
    - "content delivery in erasure broadcast channels with cache and feedback"
    - "wireless device to device caching networks basic principles and system performance"
    - "wireless caching technical misconceptions and business barriers"
    - "analysis and optimization of caching and multicasting in large scale cache enabled heterogeneous wireless networks"
    - "cooperative caching and transmission design in cluster centric small cell networks"
    - "cache enabled heterogeneous cellular networks optimal tier level content placement"
    - "greendelivery proactive content caching and push with energy harvesting based small cells"

Connected through hyperedge HE-6 (induced by source paper "mitigating interference in content delivery networks by spatial signal alignment the approach of shot noise ratio"):
  with members:
    - "sinr outage evaluation in cellular networks saddle point approximation spa using normal inverse gaussian nig distribution"
    - "optimal geographic caching in finite wireless networks"
    - "content delivery in erasure broadcast channels with cache and feedback"
    - "wireless device to device caching networks basic principles and system performance"
    - "wireless caching technical misconceptions and business barriers"
    - "cooperative caching and transmission design in cluster centric small cell networks"
    - "cache enabled heterogeneous cellular networks optimal tier level content placement"
    - "greendelivery proactive content caching and push with energy harvesting based small cells"

Connected through hyperedge HE-7 (induced by source paper "cache aided full duplex small cells"):
  with members:
    - "wireless caching technical misconceptions and business barriers"
    - "user scheduling and optimal power allocation for full duplex cellular networks"
    - "optimal low complexity self interference cancellation for full duplex mimo small cells"
    - "optimization and analysis of probabilistic caching in n tier heterogeneous networks"
    - "mean field games for distributed caching in ultra dense small cell networks"
    - "full duplex mimo small cell networks with interference cancellation"
    - "interference cancellation at receivers in cache enabled wireless networks"
    - "energy recycling full duplex radios for next generation networks"

Connected through hyperedge HE-8 (induced by source paper "mobility aware caching in d2d networks"):
  with members:
    - "cache size allocation in backhaul limited wireless networks"
    - "wireless device to device caching networks basic principles and system performance"
    - "mobility aware caching for content centric wireless networks modeling and methodology"
    - "optimal geographic caching in cellular networks"
    - "large scale convex optimization for ultra dense cloud ran"
    - "backhaul aware caching placement for wireless networks"
    - "fundamental limits of caching in wireless d2d networks"
    - "what will 5g be"

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)