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: "cost effective cache deployment in mobile heterogeneous networks"
  Abstract: This paper investigates one of the fundamental issues in cache-enabled heterogeneous networks (HetNets): how many cache instances should be deployed at different base stations, in order to provide guaranteed service in a cost-effective manner. Specifically, we consider two-tier HetNets with hierarchical caching, where the most popular files are cached at small cell base stations (SBSs) while the less popular ones are cached at macro base stations (MBSs). For a given network cache deployment budget, the cache sizes for MBSs and SBSs are optimized to maximize network capacity while satisfying the file transmission rate requirements. As cache sizes of MBSs and SBSs affect the traffic load distribution, inter-tier traffic steering is also employed for load balancing. Based on stochastic geometry analysis, the optimal cache sizes for MBSs and SBSs are obtained, which are threshold-based with respect to cache budget in the networks constrained by SBS backhauls. Simulation results are provided to evaluate the proposed schemes and demonstrate the applications in cost-effective network deployment.

Connected through hyperedge HE-1 (induced by source paper "aoi delay tradeoff in mobile edge caching with freshness aware content refreshing"):
  with members:
    - "cooperative service caching and workload scheduling in mobile edge computing"
    - "ai assisted low information latency wireless networking"
    - "age of information aware radio resource management in vehicular networks a proactive deep reinforcement learning perspective"
    - "minimum age of information in the internet of things with non uniform status packet sizes"
    - "content popularity prediction towards location aware mobile edge caching"
    - "air ground integrated vehicular network slicing with content pushing and caching"
    - "edge caching wireless networks performance analysis and optimization"
    - "edge caching in dense heterogeneous cellular networks with massive mimo aided self backhaul"

Connected through hyperedge HE-2 (induced by source paper "the design of dynamic probabilistic caching with time varying content popularity"):
  with members:
    - "decentralized caching for content delivery based on blockchain a game theoretic perspective"
    - "caching policy toward maximal success probability and area spectral efficiency of cache enabled hetnets"
    - "a survey on low latency towards 5g ran core network and caching solutions"
    - "wireless device to device caching networks basic principles and system performance"
    - "optimization and analysis of probabilistic caching in n tier heterogeneous networks"
    - "cache enabled heterogeneous cellular networks optimal tier level content placement"
    - "optimal geographic caching in cellular networks"
    - "least recently used caches under the shot noise model"

Connected through hyperedge HE-3 (induced by source paper "viewport aware deep reinforcement learning approach for 360 o video caching"):
  with members:
    - "applications of deep reinforcement learning in communications and networking a survey"
    - "saltinet scan path prediction on 360 degree images using saliency volumes"
    - "edge caching wireless networks performance analysis and optimization"
    - "deep reinforcement learning framework applications and embedded implementations"
    - "a deep reinforcement learning based framework for content caching"
    - "context aware proactive content caching with service differentiation in wireless networks"
    - "caching at the wireless edge design aspects challenges and future directions"
    - "deep reinforcement learning in large discrete action spaces"

Connected through hyperedge HE-4 (induced by source paper "economical caching for scalable videos in cache enabled heterogeneous networks"):
  with members:
    - "optimized base station cache allocation for cloud radio access network with multicast backhaul"
    - "random caching based cooperative transmission in heterogeneous wireless networks"
    - "fundamental tradeoff between storage and latency in cache aided wireless interference networks"
    - "cache enabled physical layer security for video streaming in backhaul limited cellular networks"
    - "cache enabled device to device communications offloading gain and energy cost"
    - "modeling analysis and optimization of coded caching in small cell networks"
    - "stochastic content centric multicast scheduling for cache enabled heterogeneous cellular networks"
    - "caching in wireless small cell networks a storage bandwidth tradeoff"

Connected through hyperedge HE-5 (induced by source paper "tile based joint caching and delivery of 360 o videos in heterogeneous networks"):
  with members:
    - "edge caching wireless networks performance analysis and optimization"
    - "multi stream switching for interactive virtual reality video streaming"
    - "understanding performance of edge content caching for mobile video streaming"
    - "caching at the wireless edge design aspects challenges and future directions"
    - "caching at the edge a green perspective for 5g networks"

Connected through hyperedge HE-6 (induced by source paper "single or multiple frames content delivery for robust and secure communication in energy and spectrum efficient 5g networks"):
  with members:
    - "fairness and transmission aware caching and delivery policies in ofdma based hetnets"
    - "a new look at physical layer security caching and wireless energy harvesting for heterogeneous ultra dense networks"
    - "limited feedback scheme for device to device communications in 5g cellular networks with reliability and cellular secrecy outage constraints"
    - "joint backhaul access analysis of full duplex self backhauling heterogeneous networks"
    - "green ofdma resource allocation in cache enabled cran"
    - "joint hybrid backhaul and access links design in cloud radio access networks"
    - "exploiting device to device communications in joint scheduling of access and backhaul for mmwave small cells"
    - "uplink contention based scma for 5g radio access"

Connected through hyperedge HE-7 (induced by source paper "air ground integrated vehicular network slicing with content pushing and caching"):
  with members:
    - "comp in the sky uav placement and movement optimization for multi user communications"
    - "self sustaining caching stations toward cost effective 5g enabled vehicular networks"
    - "software defined space air ground integrated vehicular networks challenges and solutions"
    - "policy optimization for content push via energy harvesting small cells in heterogeneous networks"
    - "designing and implementing future aerial communication networks"
    - "mobility aware caching for content centric wireless networks modeling and methodology"
    - "fso based vertical backhaul fronthaul framework for 5g wireless networks"
    - "the new frontier in ran heterogeneity multi tier drone cells"

Connected through hyperedge HE-8 (induced by source paper "content popularity prediction towards location aware mobile edge caching"):
  with members:
    - "dynamic mobile edge caching with location differentiation"
    - "understanding performance of edge content caching for mobile video streaming"
    - "context aware proactive content caching with service differentiation in wireless networks"
    - "wireless device to device caching networks basic principles and system performance"
    - "a learning based approach to caching in heterogenous small cell networks"
    - "wireless content caching for small cell and d2d networks"
    - "content centric sparse multicast beamforming for cache enabled cloud ran"
    - "learning based optimization of cache content in a small cell base station"

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)