human: Given a node-centered hypergraph: <hypergraph>, where nodes represent papers and hyperedges represent groups of papers sharing a common citing paper.

Details of the hypergraph:
Center node: "A model f w depending on a set of parameters w is used to estimate"
  Abstract: We have introduced earlier the use of regularisation in the learning procedure. It should now be understood that regularisation is most often a necessity to increase the quality of the results. Even when the unregularised solution is acceptable, it is likely that some regularisation will produce an improvement in performance. There does not exist any method giving directly the best value for the regularisation parameter ~, even in the linear case. The topic of this chapter is thus to propose some methods to estimate the best value. The best ~ being the one that leads to the smallest generalisation error, the methods presented and compared here propose estimators of the generalisation error. This estimation can then be used to approximate the best regularisation level. In sections 3.2 to 3.4 we present validation-based techniques. They estimate the generalisation error on the basis of some extra data. In sections 3.6 to 3.9, we deal with algebraic estimates of this error, that do not use any extra data, but rely on a number of assumptions. The contribution of this chapter is to present all these techniques and analyse them on the same ground. We also present some short derivations clarifying the links between different estimators of generalisation error, as well as a comparison between them. During the course of this chapter, the error will be the quadratic difference. For the validation-based methods, it is possible to consider any kind of error without modification of the method. On the other hand, the algebraic estimates are specific to the quadratic cost. Adapting them to another cost function would require to derive new expressions for the estimators.

Connected through hyperedge HE-1 (induced by source paper "A Bound on the Error of Cross Validation Using the Approximation and Estimation Rates, with"):
  with members:
    - "Rigorous Learning Curve Bounds from Statistical Mechanics"
    - "Improving Regressors using Boosting Techniques"
    - "An Experimental and Theoretical Comparison of Model Selection Methods on simple model selection problems, the"
    - "Algorithmic Stability and Sanity-Check Bounds for Leave-One-Out Cross-Validation"
    - "Preventing "Overfitting" of Cross-Validation Data"

Question: Please tell me which class the center node belongs to. The 7 classes are: Neural_Networks, Reinforcement_Learning, Probabilistic_Methods, Theory, Genetic_Algorithms, Case_Based, Rule_Learning. Directly output the class name.

gpt: Neural_Networks