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: "The Minimum Feature Set Problem"
  Abstract: This paper appeared in Neural Networks 7 (1994), no. 3, pp. 491-494.

Connected through hyperedge HE-1 (induced by source paper "NP-Completeness of Minimum Rule Sets"):
  with members:
    - "The Design and Evaluation of a Rule Induction Algorithm"

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: Theory