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: "cache enabled small cell networks modeling and tradeoffs"
  Abstract: We consider a network model where small base stations (SBSs) have caching capabilities as a means to alleviate the backhaul load and satisfy users' demand. The SBSs are stochastically distributed over the plane according to a Poisson point process (PPP), and serve their users either (i) by bringing the content from the Internet through a finite rate backhaul or (ii) by serving them from the local caches. We derive closed-form expressions for the outage probability and the average delivery rate as a function of the signal-to-interference-plus-noise ratio (SINR), SBS density, target file bitrate, storage size, file length and file popularity. We then analyze the impact of key operating parameters on the system performance. It is shown that a certain outage probability can be achieved either by increasing the number of base stations or the total storage size. Our results and analysis provide key insights into the deployment of cache-enabled small cell networks (SCNs), which are seen as a promising solution for future heterogeneous cellular networks.

Connected through hyperedge HE-1 (induced by source paper "joint content delivery and caching placement via dynamic programming"):
  with members:
    - "modeling analysis and optimization of coded caching in small cell networks"
    - "wireless device to device caching networks basic principles and system performance"
    - "analysis and optimization of caching and multicasting in large scale cache enabled heterogeneous wireless networks"
    - "caching placement in stochastic wireless caching helper networks channel selection diversity via caching"
    - "analysis on cache enabled wireless heterogeneous networks"
    - "optimal dynamic multicast scheduling for cache enabled content centric wireless networks"
    - "mixed timescale precoding and cache control in cached mimo interference network"
    - "fundamental limits of caching"

Connected through hyperedge HE-2 (induced by source paper "optimal cache leasing from a mobile network operator to a content provider"):
  with members:
    - "fair distributed user traffic association in cache equipped cellular networks"
    - "wireless caching technical misconceptions and business barriers"
    - "stochastic dynamic cache partitioning for encrypted content delivery"
    - "optimal geographic caching in cellular networks"
    - "on the complexity of optimal routing and content caching in heterogeneous networks"
    - "exploring the memory bandwidth tradeoff in an information centric network"

Connected through hyperedge HE-3 (induced by source paper "a survey on low latency towards 5g ran core network and caching solutions"):
  with members:
    - "stochastic optimization and control framework for 5g network slicing with effective isolation"
    - "ultra reliable and low latency communications in 5g downlink physical layer aspects"
    - "human in the loop wireless communications machine learning and brain aware resource management"
    - "r fft function split at ifft fft in unified lte cran and cable access network"
    - "a survey on mobile edge networks convergence of computing caching and communications"
    - "joint user association power control and scheduling in multi cell 5g networks"
    - "fundamental limits on latency in transceiver cache aided hetnets"
    - "decentralized coded caching in wireless networks trade off between storage and latency"

Connected through hyperedge HE-4 (induced by source paper "a low complexity approach to distributed cooperative caching with geographic constraints"):
  with members:
    - "delivery latency regions in fog rans with edge caching and cloud processing"
    - "spatial multi lru caching for wireless networks with coverage overlaps"
    - "a stackelberg game for incentive proactive caching mechanisms in wireless networks"
    - "cloud and cache aided wireless networks fundamental latency trade offs"
    - "a utility optimization approach to network cache design"
    - "optimal geographic caching in cellular networks"
    - "fundamental limits of cache aided wireless bc interplay of coded caching and csit feedback"
    - "cache aided interference channels"

Connected through hyperedge HE-5 (induced by source paper "context aware proactive content caching with service differentiation in wireless networks"):
  with members:
    - "a non stochastic learning approach to energy efficient mobility management"
    - "multi armed bandits with application to 5g small cells"
    - "big data meets telcos a proactive caching perspective"
    - "distributed online learning in social recommender systems"
    - "learning based optimization of cache content in a small cell base station"
    - "content level selective offloading in heterogeneous networks multi armed bandit optimization and regret bounds"
    - "living on the edge the role of proactive caching in 5g wireless networks"
    - "content aware user clustering and caching in wireless small cell networks"

Connected through hyperedge HE-6 (induced by source paper "joint pushing and caching for bandwidth utilization maximization in wireless networks"):
  with members:
    - "policy optimization for content push via energy harvesting small cells in heterogeneous networks"
    - "stochastic content centric multicast scheduling for cache enabled heterogeneous cellular networks"
    - "wireless caching technical misconceptions and business barriers"
    - "wireless content caching for small cell and d2d networks"
    - "analysis and optimization of caching and multicasting in large scale cache enabled heterogeneous wireless networks"
    - "analysis and optimization of caching and multicasting in large scale cache enabled wireless networks"
    - "multicast aware caching for small cell networks"
    - "base station assisted device to device communications for high throughput wireless video networks"

Connected through hyperedge HE-7 (induced by source paper "learning based caching in cloud aided wireless networks"):
  with members:
    - "placing dynamic content in caches with small population"
    - "learning based optimization of cache content in a small cell base station"
    - "living on the edge the role of proactive caching in 5g wireless networks"
    - "content aware user clustering and caching in wireless small cell networks"
    - "five disruptive technology directions for 5g"
    - "a tutorial on spectral clustering"

Connected through hyperedge HE-8 (induced by source paper "fair distributed user traffic association in cache equipped cellular networks"):
  with members:
    - "optimal geographic caching in cellular networks"
    - "on the complexity of optimal routing and content caching in heterogeneous networks"
    - "average rate of downlink heterogeneous cellular networks over generalized fading channels a stochastic geometry approach"

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)