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: "wireless content caching for small cell and d2d networks"
  Abstract: The fifth generation wireless networks must provide fast and reliable connectivity while coping with the ongoing traffic growth. It is of paramount importance that the required resources, such as energy and bandwidth, do not scale with traffic. While the aggregate network traffic is growing at an unprecedented rate, users tend to request the same popular contents at different time instants. Therefore, caching the most popular contents at the network edge is a promising solution to reduce the traffic and the energy consumption over the backhaul links. In this paper, two scenarios are considered, where caching is performed either at a small base station, or directly at the user terminals, which communicate using Device-to-Device (D2D) communications. In both scenarios, joint design of the transmission and caching policies is studied when the user demands are known in advance. This joint design offers two different caching gains, namely, the  pre-downloading  and  local caching gains . It is shown that the finite cache capacity limits the attainable gains, and creates an inherent tradeoff between the two types of gains. In this context, a continuous time optimization problem is formulated to determine the optimal transmission and caching policies that minimize a generic cost function, such as energy, bandwidth, or throughput. The jointly optimal solution is obtained by demonstrating that caching files at a constant rate is optimal, which allows reformulation of the problem as a finite-dimensional convex program. The numerical results show that the proposed joint transmission and caching policy dramatically reduces the total cost, which is particularised to the total energy consumption at the Macro Base Station (MBS), as well as to the total economical cost for the service provider, when users demand economical incentives for delivering content to other users over the D2D links.

Connected through hyperedge HE-1 (induced by source paper "a unified framework for constructing centralized coded caching schemes"):
  with members:
    - "coded caching based on combinatorial designs"
    - "the exact rate memory tradeoff for caching with uncoded prefetching"
    - "coded caching via line graphs of bipartite graphs"
    - "placement delivery array design through strong edge coloring of bipartite graphs"
    - "adding transmitters dramatically boosts coded caching gains for finite file sizes"
    - "optimal placement delivery arrays with minimum number of rows"
    - "on the placement delivery array design for centralized coded caching scheme"
    - "coded caching with linear subpacketization is possible using ruzsa szem eredi graphs"

Connected through hyperedge HE-2 (induced by source paper "fog aided device to device networks with opportunistic content delivery"):
  with members:
    - "resource allocation in noma based fog radio access networks"
    - "fog radio access networks mobility management interference mitigation and resource optimization"
    - "d2d aware device caching in mmwave cellular networks"
    - "spatially correlated content caching for device to device communications"
    - "caching in the sky proactive deployment of cache enabled unmanned aerial vehicles for optimized quality of experience"
    - "fog computing based radio access networks issues and challenges"
    - "the three primary colors of mobile systems"
    - "mobility aware caching in d2d networks"

Connected through hyperedge HE-3 (induced by source paper "full duplex enabled mobile edge caching from distributed to cooperative caching"):
  with members:
    - "modeling and performance analysis of full duplex communications in cache enabled d2d networks"
    - "fundamental tradeoff between storage and latency in cache aided wireless interference networks"
    - "edge caching wireless networks performance analysis and optimization"
    - "cache aided full duplex small cells"
    - "delivery time minimization in edge caching synergistic benefits of subspace alignment and zero forcing"
    - "wireless device to device caching networks basic principles and system performance"
    - "octopus a cooperative hierarchical caching strategy for cloud radio access networks"
    - "energy efficiency of downlink networks with caching at base stations"

Connected through hyperedge HE-4 (induced by source paper "markov decision policies for dynamic video delivery in wireless caching networks"):
  with members:
    - "wireless video caching and dynamic streaming under differentiated quality requirements"
    - "optimizing content caching to maximize the density of successful receptions in device to device networking"
    - "mobility aware caching in d2d networks"
    - "caching placement in stochastic wireless caching helper networks channel selection diversity via caching"
    - "cooperative caching and transmission design in cluster centric small cell networks"
    - "analysis on cache enabled wireless heterogeneous networks"
    - "optimal geographic caching in cellular networks"
    - "feasibility study of stochastic streaming with 4k uhd video traces"

Connected through hyperedge HE-5 (induced by source paper "a rolling horizon dynamic programming approach for collaborative caching"):
  with members:
    - "popnetcod a popularity based caching policy for network coding enabled named data networking"
    - "content popularity prediction towards location aware mobile edge caching"
    - "using grouped linear prediction and accelerated reinforcement learning for online content caching"
    - "optimal and scalable caching for 5g using reinforcement learning of space time popularities"
    - "caching with time varying popularity profiles a learning theoretic perspective"
    - "context aware proactive content caching with service differentiation in wireless networks"
    - "joint caching routing and channel assignment for collaborative small cell cellular networks"
    - "adaptive prioritized random linear coding and scheduling for layered data delivery from multiple servers"

Connected through hyperedge HE-6 (induced by source paper "cache aided combination networks with interference"):
  with members:
    - "cache aided fog radio access networks with partial connectivity"
    - "fog aided wireless networks for content delivery fundamental latency tradeoffs"
    - "a reinforcement learning approach to proactive caching in wireless networks"
    - "coded caching in a multi server system with random topology"
    - "decentralized coded caching in wireless networks trade off between storage and latency"
    - "on the placement delivery array design for centralized coded caching scheme"
    - "fundamental tradeoff between storage and latency in cache aided wireless interference networks"
    - "coded caching schemes with reduced subpacketization from linear block codes"

Connected through hyperedge HE-7 (induced by source paper "wireless video caching and dynamic streaming under differentiated quality requirements"):
  with members:
    - "dynamic video streaming in caching enabled wireless mobile networks"
    - "optimizing content caching to maximize the density of successful receptions in device to device networking"
    - "wireless device to device caching networks basic principles and system performance"
    - "collaborative multi bitrate video caching and processing in mobile edge computing networks"
    - "the effects of mobility on the hit performance of cached d2d networks"
    - "caching placement in stochastic wireless caching helper networks channel selection diversity via caching"
    - "analysis on cache enabled wireless heterogeneous networks"
    - "optimal geographic caching in cellular networks"

Connected through hyperedge HE-8 (induced by source paper "mean field game theoretic edge caching in ultra dense networks"):
  with members:
    - "ultra dense edge caching under spatio temporal demand and network dynamics"
    - "spatially correlated content caching for device to device communications"
    - "ultra dense small cell networks turning density into energy efficiency"
    - "fundamental storage latency tradeoff in cache aided mimo interference networks"
    - "caching in wireless small cell networks a storage bandwidth tradeoff"
    - "tractable resource management with uplink decoupled millimeter wave overlay in ultra dense cellular networks"
    - "mean field games for distributed caching in ultra dense small cell networks"
    - "beyond the ultra dense barrier paradigm shifts on the road beyond 1000x wireless capacity"

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)