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: "optimization of caching devices with geometric constraints"
  Abstract: It has been recently advocated that in large communication systems it is beneficial both for the users and for the network as a whole to store content closer to users. One particular implementation of such an approach is to co-locate caches with wireless base stations. In this paper we study geographically distributed caching of a fixed collection of files. We model cache placement with the help of stochastic geometry and optimize the allocation of storage capacity among files in order to minimize the cache miss probability. We consider both per cache capacity constraints as well as an average capacity constraint over all caches. The case of per cache capacity constraints can be efficiently solved using dynamic programming, whereas the case of the average constraint leads to a convex optimization problem. We demonstrate that the average constraint leads to significantly smaller cache miss probability. Finally, we suggest a simple LRU-based policy for geographically distributed caching and show that its performance is close to the optimal.

Connected through hyperedge HE-1 (induced by source paper "online learning models for content popularity prediction in wireless edge caching"):
  with members:
    - "user preference learning based edge caching for fog radio access network"
    - "optimal and scalable caching for 5g using reinforcement learning of space time popularities"
    - "caching policy toward maximal success probability and area spectral efficiency of cache enabled hetnets"
    - "context aware proactive content caching with service differentiation in wireless networks"
    - "a low complexity approach to distributed cooperative caching with geographic constraints"
    - "caching at the wireless edge design aspects challenges and future directions"
    - "interference functionals in poisson networks"
    - "optimal geographic caching in cellular networks"

Connected through hyperedge HE-2 (induced by source paper "optimal geographic caching in cellular networks with linear content coding"):
  with members:
    - "on the delay of geographical caching methods in two tiered heterogeneous networks"
    - "a provably efficient online collaborative caching algorithm for multicell coordinated systems"
    - "optimal geographic caching in cellular networks"
    - "femtocaching and device to device collaboration a new architecture for wireless video distribution"

Connected through hyperedge HE-3 (induced by source paper "information centric offloading in cellular networks with coordinated device to device communication"):
  with members:
    - "fundamentals of cluster centric content placement in cache enabled device to device networks"
    - "wireless device to device caching networks basic principles and system performance"
    - "cooperative caching and transmission design in cluster centric small cell networks"
    - "modeling and performance analysis of clustered device to device networks"
    - "optimal geographic caching in cellular networks"
    - "a transfer learning approach for cache enabled wireless networks"
    - "modeling and analysis of content caching in wireless small cell networks"
    - "coded caching for delay sensitive content"

Connected through hyperedge HE-4 (induced by source paper "gibbsian on line distributed content caching strategy for cellular networks"):
  with members:
    - "caching policy toward maximal success probability and area spectral efficiency of cache enabled hetnets"
    - "a low complexity approach to distributed cooperative caching with geographic constraints"
    - "on optimal geographical caching in heterogeneous cellular networks"
    - "a learning based approach to caching in heterogenous small cell networks"
    - "edge caching for coverage and capacity aided heterogeneous networks"
    - "on the delay of geographical caching methods in two tiered heterogeneous networks"
    - "placing dynamic content in caches with small population"
    - "optimal geographic caching in cellular networks"

Connected through hyperedge HE-5 (induced by source paper "on optimal geographical caching in heterogeneous cellular networks"):
  with members:
    - "a low complexity approach to distributed cooperative caching with geographic constraints"
    - "cooperative caching and transmission design in cluster centric small cell networks"
    - "a utility optimization approach to network cache design"
    - "optimal geographic caching in cellular networks"
    - "exploiting user mobility for wireless content delivery"
    - "fundamental limits of caching"
    - "femtocaching and device to device collaboration a new architecture for wireless video distribution"

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)