human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge is induced by one source paper and its member nodes are the cited papers.

Details of the hypergraph:
Center hyperedge (induced by source paper "duopoly competition for mobile data plans with time flexibility"):
  Abstract: The growing competition drives the mobile network operators (MNOs) to explore adding time flexibility to the traditional data plan, which consists of a monthly subscription fee, a data cap, and a per-unit fee for exceeding the data cap. The rollover data plan, which allows the unused data of the previous month to be used in the current month, provides the subscribers with the time flexibility. In this paper, we formulate two MNOs' market competition as a three-stage game, where the MNOs decide their data mechanisms (traditional or rollover) in Stage I and the pricing strategies in Stage II, and then users make their subscription decisions in Stage III. Different from the monopoly market where an MNO always prefers the rollover mechanism over the traditional plan in terms of profit, MNOs may adopt different data mechanisms at an equilibrium. Specifically, the high-QoS MNO would gradually abandon the rollover mechanism as its QoS advantage diminishes. Meanwhile, the low-QoS MNO would progressively upgrade to the rollover mechanism. The numerical results show that the market competition significantly limits MNOs' profits, but both MNOs obtain higher profits with the possible choice of the rollover data plan.

Includes members:
  Member "economic viability of data trading with rollover":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "multi cap optimization for wireless data plans with time flexibility")
  Member "a novel mobile data contract design with time flexibility":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "multi cap optimization for wireless data plans with time flexibility")
  Member "exploring time flexibility in wireless data plans":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "multi cap optimization for wireless data plans with time flexibility")
  Member "an integrated spectrum and information market for green cognitive communications":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "multi cap optimization for wireless data plans with time flexibility")
  Member "the role of data cap in optimal two part network pricing":
    also connected through other hyperedges:
      - Hyperedge HE-5 (induced by source paper "multi cap optimization for wireless data plans with time flexibility")
  Member "time and location aware mobile data pricing":
    also connected through other hyperedges:
      - Hyperedge HE-6 (induced by source paper "economic viability of data trading with rollover")
  Member "mine gold to deliver green cognitive communications":
    also connected through other hyperedges:
      - Hyperedge HE-7 (induced by source paper "scalable mobile crowdsensing via peer to peer data sharing")
  Member "economic viability of paris metro pricing for digital services":
    also connected through other hyperedges:
      - Hyperedge HE-8 (induced by source paper "facilitating adoption of network services with externalities via cost subsidization")

Question: Please tell me which class the source paper 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)