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: "mobicacher mobility aware content caching in small cell networks"
  Abstract: Small-cell networks have been proposed to meet the demand of ever growing mobile data traffic. One of the prominent challenges faced by small-cell networks is the lack of sufficient backhaul capacity to connect small-cell base stations (small-BSs) to the core network. We exploit the effective application layer semantics of both spatial and temporal locality to reduce the backhaul traffic. Specifically, small-BSs are equipped with storage facility to cache contents requested by users. As the {\em cache hit ratio} increases, most of the users' requests can be satisfied locally without incurring traffic over the backhaul. To make informed caching decisions, the mobility patterns of users must be carefully considered as users might frequently migrate from one small cell to another. We study the issue of mobility-aware content caching, which is formulated into an optimization problem with the objective to maximize the caching utility. As the problem is NP-complete, we develop a polynomial-time heuristic solution termed {\em MobiCacher} with bounded approximation ratio. We also conduct trace-based simulations to evaluate the performance of {\em MobiCacher}, which show that {\em MobiCacher} yields better caching utility than existing solutions.

Connected through hyperedge HE-1 (induced by source paper "optimal scheduling of content caching subject to deadline"):
  with members:
    - "on optimal proactive and retention aware caching with user mobility"
    - "caching at base stations with heterogeneous user demands and spatial locality"
    - "a rolling horizon dynamic programming approach for collaborative caching"
    - "accounting for information freshness in scheduling of content caching"
    - "using grouped linear prediction and accelerated reinforcement learning for online content caching"
    - "caching with time varying popularity profiles a learning theoretic perspective"
    - "optimal geographic caching in cellular networks with linear content coding"
    - "cost optimal caching for d2d networks with user mobility modeling analysis and computational approaches"

Connected through hyperedge HE-2 (induced by source paper "a personalized preference learning framework for caching in mobile networks"):
  with members:
    - "caching at base stations with heterogeneous user demands and spatial locality"
    - "user preference learning based edge caching for fog radio access network"
    - "on the effects of subpacketization in content centric mobile networks"
    - "how to cache in mobile hybrid iot networks"
    - "caching policy for cache enabled d2d communications by learning user preference"
    - "pricing and resource allocation via game theory for a small cell video caching system"
    - "information theoretic caching the multi user case"
    - "caching incentive design in wireless d2d networks a stackelberg game approach"

Connected through hyperedge HE-3 (induced by source paper "joint caching and resource allocation in d2d assisted wireless hetnet"):
  with members:
    - "cache placement in two tier hetnets with limited storage capacity cache or buffer"
    - "inter cluster cooperation for wireless d2d caching networks"
    - "optimal caching and scheduling for cache enabled d2d communications"
    - "a delay aware caching algorithm for wireless d2d caching networks"
    - "cooperation in 5g hetnets advanced spectrum access and d2d assisted communications"
    - "wireless device to device caching networks basic principles and system performance"
    - "optimization and analysis of probabilistic caching in n tier heterogeneous networks"
    - "mode selection resource allocation and power control for d2d enabled two tier cellular network"

Connected through hyperedge HE-4 (induced by source paper "device caching for network offloading delay minimization with presence of user mobility"):
  with members:
    - "cost optimal caching for d2d networks with user mobility modeling analysis and computational approaches"
    - "mobility aware caching for content centric wireless networks modeling and methodology"
    - "mobility aware caching in d2d networks"
    - "optimal geographic caching in cellular networks"
    - "distributed storage allocations"

Connected through hyperedge HE-5 (induced by source paper "towards mobility aware proactive caching for vehicular ad hoc networks"):
  with members:
    - "living on the edge the role of proactive caching in 5g wireless networks"
    - "empirical study of traffic velocity distribution and its effect on vanets connectivity"
    - "on the role of vehicular mobility in cooperative content caching"
    - "femtocaching wireless video content delivery through distributed caching helpers"

Connected through hyperedge HE-6 (induced by source paper "a survey on mobile edge networks convergence of computing caching and communications"):
  with members:
    - "mobile edge computing fog et al a survey and analysis of security threats and challenges"
    - "pricing and resource allocation via game theory for a small cell video caching system"
    - "delay optimal computation task scheduling for mobile edge computing systems"
    - "caching at the wireless edge design aspects challenges and future directions"
    - "dynamic computation offloading for mobile edge computing with energy harvesting devices"
    - "energy efficient resource allocation for mobile edge computation offloading extended version"
    - "wireless caching technical misconceptions and business barriers"
    - "cooperative device to device communications with caching"

Connected through hyperedge HE-7 (induced by source paper "cost optimal caching for d2d networks with user mobility modeling analysis and computational approaches"):
  with members:
    - "incentive mechanism design for cache assisted d2d communications a mobility aware approach"
    - "mobility increases the data offloading ratio in d2d caching networks"
    - "stochastic content centric multicast scheduling for cache enabled heterogeneous cellular 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"
    - "fog computing based radio access networks issues and challenges"
    - "mobility aware caching for content centric wireless networks modeling and methodology"
    - "mobility aware caching in d2d networks"

Connected through hyperedge HE-8 (induced by source paper "a learning based approach to caching in heterogenous small cell networks"):
  with members:
    - "caching with unknown popularity profiles in small cell networks"
    - "analysis on cache enabled wireless heterogeneous networks"
    - "a transfer learning approach for cache enabled wireless networks"
    - "efficient scheduling and power allocation for d2d assisted wireless caching networks"
    - "modeling and analysis of content caching in wireless small cell networks"
    - "hierarchical coded caching"
    - "learning based optimization of cache content in a small cell base station"
    - "fundamental limits of caching in wireless d2d networks"

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)