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: "coalitional games with overlapping coalitions for interference management in small cell networks"
  Abstract: In this paper, we study the problem of cooperative interference management in an OFDMA two-tier small cell network. In particular, we propose a novel approach for allowing the small cells to cooperate, so as to optimize their sum-rate, while cooperatively satisfying their maximum transmit power constraints. Unlike existing work which assumes that only disjoint groups of cooperative small cells can emerge, we formulate the small cells' cooperation problem as a coalition formation game with overlapping coalitions. In this game, each small cell base station can choose to participate in one or more cooperative groups (or coalitions) simultaneously, so as to optimize the tradeoff between the benefits and costs associated with cooperation. We study the properties of the proposed overlapping coalition formation game and we show that it exhibits negative externalities due to interference. Then, we propose a novel decentralized algorithm that allows the small cell base stations to interact and self-organize into a stable overlapping coalitional structure. Simulation results show that the proposed algorithm results in a notable performance advantage in terms of the total system sum-rate, relative to the noncooperative case and the classical algorithms for coalitional games with non-overlapping coalitions.

Connected through hyperedge HE-1 (induced by source paper "peer to peer energy trading with sustainable user participation a game theoretic approach"):
  with members:
    - "managing price uncertainty in prosumer centric energy trading a prospect theoretic stackelberg game approach"
    - "customer engagement plans for peak load reduction in residential smart grids"
    - "energy storage sharing in smart grid a modified auction based approach"
    - "towards a consumer centric grid a behavioral perspective"
    - "price discrimination for energy trading in smart grid a game theoretic approach"
    - "cooperation and storage tradeoffs in power grids with renewable energy resources"
    - "prioritizing consumers in smart grid a game theoretic approach"
    - "three party energy management with distributed energy resources in smart grid"

Connected through hyperedge HE-2 (induced by source paper "context aware group buying in ultra dense small cell networks unity is strength"):
  with members:
    - "two sided matching based cooperative spectrum sharing"
    - "energy group buying with loading sharing for green cellular networks"
    - "load optimization with user association in cooperative and load coupled lte networks"
    - "user mobility evaluation for 5g small cell networks based on individual mobility model"
    - "5g ultra dense cellular networks"

Connected through hyperedge HE-3 (induced by source paper "socially trusted collaborative edge computing in ultra dense networks"):
  with members:
    - "online learning for offloading and autoscaling in energy harvesting mobile edge computing"
    - "a survey on mobile edge computing the communication perspective"
    - "online learning for offloading and autoscaling in renewable powered mobile edge computing"
    - "a cooperative scheduling scheme of local cloud and internet cloud for delay aware mobile cloud computing"
    - "what will 5g be"
    - "optimization of radio and computational resources for energy efficiency in latency constrained application offloading"
    - "coalition formation games for collaborative spectrum sensing"
    - "belief propagation methods for intercell interference coordination"

Connected through hyperedge HE-4 (induced by source paper "collaborative smartphone sensing using overlapping coalition formation games"):
  with members:
    - "a layered coalitional game framework of wireless relay network"
    - "coalition formation games for collaborative spectrum sensing"
    - "cooperative games with overlapping coalitions"
    - "coalitional game theory for communication networks a tutorial"
    - "a generic approach to coalition formation"

Connected through hyperedge HE-5 (induced by source paper "distributed downlink power control for dense networks with carrier aggregation"):
  with members:
    - "ultra dense small cell networks turning density into energy efficiency"
    - "downlink transmit power setting in lte hetnets with carrier aggregation"
    - "algorithms for enhanced inter cell interference coordination eicic in lte hetnets"
    - "what will 5g be"

Connected through hyperedge HE-6 (induced by source paper "load aware dynamic spectrum access for small cell networks a graphical game approach"):
  with members:
    - "a game theoretic perspective on self organizing optimization for cognitive small cells"
    - "partially distributed resource allocation in small cell networks"
    - "heterogeneous cloud radio access networks a new perspective for enhancing spectral and energy efficiencies"
    - "full duplex cloud radio access networks an information theoretic viewpoint"
    - "ergodic capacity analysis of remote radio head associations in cloud radio access networks"
    - "joint precoding and multivariate backhaul compression for the downlink of cloud radio access networks"

Connected through hyperedge HE-7 (induced by source paper "downlink transmit power setting in lte hetnets with carrier aggregation"):
  with members:
    - "algorithms for enhanced inter cell interference coordination eicic in lte hetnets"

Connected through hyperedge HE-8 (induced by source paper "overlapping coalition formation games for emerging communication networks"):
  with members:
    - "coalitional graph games for popular content distribution in cognitive radio vanets"
    - "what will 5g be"
    - "hedonic coalition formation for distributed task allocation among wireless agents"
    - "cooperative games with overlapping coalitions"
    - "coalition formation games for distributed cooperation among roadside units in vehicular networks"
    - "physical layer security coalitional games for distributed cooperation"
    - "coalitional games for distributed collaborative spectrum sensing in cognitive radio networks"
    - "a distributed merge and split algorithm for fair cooperation in wireless 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.GT(Computer Science and Game Theory)