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: "energy aware load balancing in content delivery networks"
  Abstract: Internet-scale distributed systems such as content delivery networks (CDNs) operate hundreds of thousands of servers deployed in thousands of data center locations around the globe. Since the energy costs of operating such a large IT infrastructure are a significant fraction of the total operating costs, we argue for redesigning CDNs to incorporate energy optimizations as a first-order principle. We propose techniques to turn off CDN servers during periods of low load while seeking to balance three key design goals: maximize energy reduction, minimize the impact on client-perceived service availability (SLAs), and limit the frequency of on-off server transitions to reduce wear-and-tear and its impact on hardware reliability. We propose an optimal offline algorithm and an online algorithm to extract energy savings both at the level of local load balancing within a data center and global load balancing across data centers. We evaluate our algorithms using real production workload traces from a large commercial CDN. Our results show that it is possible to reduce the energy consumption of a CDN by more than 55% while ensuring a high level of availability that meets customer SLA requirements and incurring an average of one on-off transition per server per day. Further, we show that keeping even 10% of the servers as hot spares helps absorb load spikes due to global flash crowds with little impact on availability SLAs. Finally, we show that redistributing load across proximal data centers can enhance service availability significantly, but has only a modest impact on energy savings.

Connected through hyperedge HE-1 (induced by source paper "a novel communication cost aware load balancing in content delivery networks using honeybee algorithm"):
  with members:
    - "storage communication and load balancing trade off in distributed cache networks"

Connected through hyperedge HE-2 (induced by source paper "caching in the clouds optimized dynamic cache instantiation in content delivery systems"):
  with members:
    - "a utility optimization approach to network cache design"
    - "performance evaluation of the random replacement policy for networks of caches"
    - "a versatile and accurate approximation for lru cache performance"

Connected through hyperedge HE-3 (induced by source paper "coded load balancing in cache networks"):
  with members:
    - "network coding approach for information centric networking"
    - "network coding for critical infrastructure networks"
    - "caching at the edge with lt codes"
    - "storage communication and load balancing trade off in distributed cache networks"
    - "optimizing mds codes for caching at the edge"
    - "network coding meets multimedia a review"
    - "fundamental limits of caching"
    - "subspace properties of network coding and their applications"

Connected through hyperedge HE-4 (induced by source paper "dynamic provisioning in next generation data centers with on site power production"):
  with members:
    - "online energy generation scheduling for microgrids with intermittent energy sources and co generation"
    - "simple and effective dynamic provisioning for power proportional data centers"
    - "a taxonomy and survey of energy efficient data centers and cloud computing systems"

Connected through hyperedge HE-5 (induced by source paper "queuing theoretic analysis of power performance tradeoff in power efficient computing"):
  with members:
    - "coding for fast content download"
    - "a taxonomy and survey of energy efficient data centers and cloud computing systems"

Connected through hyperedge HE-6 (induced by source paper "reporting an experience on design and implementation of e health systems on azure cloud"):
  with members:
    - "a taxonomy and survey of energy efficient data centers and cloud computing systems"

Connected through hyperedge HE-7 (induced by source paper "coding for fast content download"):
  with members:
    - "interference alignment in regenerating codes for distributed storage necessity and code constructions"
    - "toward sustainable networking storage area networks with network coding"
    - "explicit construction of optimal exact regenerating codes for distributed storage"
    - "network coding for distributed storage systems"

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)