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: "robust data driven guarantees in auctions"
  Abstract: Analysis of welfare in auctions comes traditionally via one of two approaches: precise but fragile inference of the exact details of a setting from data or robust but coarse theoretical price of anarchy bounds that hold in any setting. As markets get more and more dynamic and bidders become more and more sophisticated, the weaknesses of each approach are magnified.In this paper, we provide tools for analyzing and estimating the empirical price of anarchy of an auction. The empirical price of anarchy is the worst case efficiency loss of any auction that could have produced the data, relative to the optimal. Our techniques are based on inferring simple properties of auctions: primarily the expected revenue and the expected payments and allocation probabilities from possible bids. These quantities alone allow us to empirically estimate the revenue covering parameter of an auction which allows us to re-purpose the theoretical machinery of Hartline et al. [2014] for empirical purposes. Moreover, we show that under general conditions the revenue covering parameter estimated from the data approaches the true parameter with the error decreasing at the rate proportional to the square root of the number of auctions and at most polynomially in the number of agents. While we focus on the setting of position auctions, and particularly the generalized second price auction, our techniques are applicable far more generally. Finally, we apply our techniques to a selection of advertising auctions on Microsoft's Bing and find empirical results that are a significant improvement over the theoretical worst-case bounds.

Connected through hyperedge HE-1 (induced by source paper "routing games in the wild efficiency equilibration and regret large scale field experiments in singapore"):
  with members:
    - "power saving transportation mode identification for large scale applications"
    - "learning and trust in auction markets"
    - "data driven estimation of origin destination demand and user cost functions for the optimization of transportation networks"
    - "on the price of anarchy of highly congested nonatomic network games"
    - "the price of anarchy in large games"
    - "learning in auctions regret is hard envy is easy"
    - "econometrics for learning agents"
    - "playing the wrong game smoothness bounds for congestion games with behavioral biases"

Connected through hyperedge HE-2 (induced by source paper "how bad is selfish routing in practice"):
  with members:
    - "power saving transportation mode identification for large scale applications"
    - "data driven estimation of origin destination demand and user cost functions for the optimization of transportation networks"
    - "the price of anarchy in large games"
    - "econometrics for learning 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.GT(Computer Science and Game Theory)