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: "the internet of flying things opportunities and challenges with airborne fog computing and mobile cloud in the clouds"
  Abstract: This paper focuses on services and applications provided to mobile users using airborne computing infrastructure. We present concepts such as drones-as-a-service and fly-in,fly-out infrastructure, and note data management and system design issues that arise in these scenarios. Issues of Big Data arising from such applications, optimising the configuration of airborne and ground infrastructure to provide the best QoS and QoE, situation-awareness, scalability, reliability, scheduling for efficiency, interaction with users and drones using physical annotations are outlined.

Connected through hyperedge HE-1 (induced by source paper "the penetration of internet of things in robotics towards a web of robotic things"):
  with members:
    - "creating an extrovert robotic assistant via iot networking devices"
    - "mobile unmanned aerial vehicles uavs for energy efficient internet of things communications"
    - "a gap analysis of internet of things platforms"
    - "a new vision for smart objects and the internet of things mobile robots and long range uhf rfid sensor tags"

Connected through hyperedge HE-2 (induced by source paper "characterizing application scheduling on edge fog and cloud computing resources"):
  with members:
    - "violet a large scale virtual environment for internet of things"
    - "adaptive energy aware scheduling of dynamic event analytics across edge and cloud resources"
    - "slaq quality driven scheduling for distributed machine learning"
    - "arm wrestling with big data a study of commodity arm64 server for big data workloads"
    - "a manifesto for future generation cloud computing research directions for the next decade"
    - "demystifying fog computing characterizing architectures applications and abstractions"
    - "mobile edge computing a survey on architecture and computation offloading"
    - "big data and fog computing"

Connected through hyperedge HE-3 (induced by source paper "mobile edge computing fog et al a survey and analysis of security threats and challenges"):
  with members:
    - "fog computing focusing on mobile users at the edge"
    - "aqua computing coupling computing and communications"
    - "software defined networking a comprehensive survey"
    - "cloud based augmentation for mobile devices motivation taxonomies and open challenges"

Connected through hyperedge HE-4 (induced by source paper "joint trajectory and communication design for multi uav enabled wireless networks"):
  with members:
    - "securing uav communications via joint trajectory and power control"
    - "the sky is not the limit lte for unmanned aerial vehicles"
    - "placement optimization of uav mounted mobile base stations"
    - "securing uav communications via trajectory optimization"
    - "fundamental green tradeoffs progresses challenges and impacts on 5g networks"
    - "joint trajectory and communication design for uav enabled multiple access"
    - "cyclical multiple access in uav aided communications a throughput delay tradeoff"
    - "efficient deployment of multiple unmanned aerial vehicles for optimal wireless coverage"

Connected through hyperedge HE-5 (induced by source paper "demystifying fog computing characterizing architectures applications and abstractions"):
  with members:
    - "distributed scheduling of event analytics across edge and cloud"
    - "fog computing principles architectures and applications"
    - "fog computing focusing on mobile users at the edge"
    - "holistic measures for evaluating prediction models in smart grids"
    - "towards a practical architecture for india centric internet of things"

Connected through hyperedge HE-6 (induced by source paper "big data and fog computing"):
  with members:
    - "knowledge infused and consistent complex event processing over real time and persistent streams"
    - "mathbb echo an adaptive orchestration platform for hybrid dataflows across cloud and edge"
    - "demystifying fog computing characterizing architectures applications and abstractions"
    - "a berkeley view of systems challenges for ai"
    - "internet of things iot a vision architectural elements and future directions"

Connected through hyperedge HE-7 (induced by source paper "mobile edge computing via a uav mounted cloudlet optimization of bit allocation and path planning"):
  with members:
    - "mobile cloud computing with a uav mounted cloudlet optimal bit allocation for communication and computation"
    - "energy efficient uav communication with trajectory optimization"
    - "parallel and distributed methods for nonconvex optimization part ii applications"
    - "optimal transport theory for power efficient deployment of unmanned aerial vehicles"
    - "resource allocation for machine to machine communications with unmanned aerial vehicles"
    - "wireless communications with unmanned aerial vehicles opportunities and challenges"
    - "unmanned aerial vehicle with underlaid device to device communications performance and tradeoffs"
    - "throughput maximization for mobile relaying systems"

Connected through hyperedge HE-8 (induced by source paper "mobile cloud computing with a uav mounted cloudlet optimal bit allocation for communication and computation"):
  with members:
    - "placement optimization of uav mounted mobile base stations"
    - "energy efficient uav communication with trajectory optimization"
    - "optimal transport theory for power efficient deployment of unmanned aerial vehicles"
    - "resource allocation for machine to machine communications with unmanned aerial vehicles"
    - "wireless communications with unmanned aerial vehicles opportunities and challenges"
    - "unmanned aerial vehicle with underlaid device to device communications performance and tradeoffs"
    - "mobile internet of things can uavs provide an energy efficient mobile architecture"
    - "throughput maximization for mobile relaying 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.CY(Computers and Society)