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: "sharing of unlicensed spectrum by strategic operators"
  Abstract: Facing the challenge of meeting ever-increasing demand for wireless data, the industry is striving to exploit large swaths of spectrum which anyone can use for free without having to obtain a license. Major standards bodies are currently considering a proposal to retool and deploy Long Term Evolution (LTE) technologies in unlicensed bands below 6 GHz. This paper studies the fundamental questions of whether and how the unlicensed spectrum can be shared by intrinsically strategic operators without suffering from the tragedy of the commons. A class of general utility functions is considered. It is first shown that a simple static sharing scheme allows a given set of operators to reach a subgame perfect Nash equilibrium for mutually beneficial sharing. The question of how many operators will choose to enter the market is also addressed by studying an entry game. A sharing scheme which allows dynamic spectrum borrowing and lending between operators is then proposed to address time-varying traffic and proved to achieve subgame perfect Nash equilibria with significantly higher revenue than static sharing. Implications of the results to practical LTE in unlicensed bands (LTE-U) are also discussed. The goal of this paper is to provide a theoretical foundation for LTE-U standardization and deployment.

Connected through hyperedge HE-1 (induced by source paper "cobeam beamforming based spectrum sharing with zero cross technology signaling for 5g wireless networks"):
  with members:
    - "massive mimo unlicensed a new approach to dynamic spectrum access"
    - "operating massive mimo in unlicensed bands for enhanced coexistence and spatial reuse"

Connected through hyperedge HE-2 (induced by source paper "distributed resource allocation for network slicing over licensed and unlicensed bands"):
  with members:
    - "network slicing games enabling customization in multi tenant networks"
    - "coordination protocol for inter operator spectrum sharing in co primary 5g small cell networks"
    - "joint energy and spectrum cooperation for cellular communication systems"
    - "investment and pricing with spectrum uncertainty a cognitive operator s perspective"
    - "cooperative games with overlapping coalitions"

Connected through hyperedge HE-3 (induced by source paper "a multi game framework for harmonized lte u and wifi coexistence over unlicensed bands"):
  with members:
    - "echo state networks for self organizing resource allocation in lte u with uplink downlink decoupling"
    - "small cell traffic balancing over licensed and unlicensed bands"

Connected through hyperedge HE-4 (induced by source paper "using private and public assessments in security information sharing agreements"):
  with members:
    - "information sharing over adaptive networks with self interested agents"

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)