human: Given a hyperedge-centered hypergraph: <hypergraph>, where the center hyperedge groups papers that share a common citing paper.

Details of the hypergraph:
Center hyperedge (induced by source paper "Chunking in soar: The anatomy of a general learn ing mechanism. Machine Learning, 1(1). Learning"):
  Abstract: gers University. Also appears as tech. report ML- TR-7. Minton, S. (1988). Quantitative results concerning the utility of explanation-based learning. In Proceedings of National Conference on Artificial Intelli gence, pages 564-569. St. Paul, MN.

Includes members:
  Member "A systematic description of greedy optimisation algorithms for cost sensitive generalisation":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "Cost-Sensitive Classification: Empirical Evaluation of a Hybrid Genetic Decision Tree Induction Algorithm")
  Member "Learning Approximate Control Rules Of High Utility":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "Learning Search-Control Heuristics for Logic Programs: Applications to Speedup Learning and Language Acquisition")
  Member "Learning with Rare Cases and Small Disjuncts":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "The Problem with Noise and Small Disjuncts")
  Member "The Problem with Noise and Small Disjuncts":
    also connected through other hyperedges:
      - Hyperedge HE-4 (induced by source paper "Learning with Rare Cases and Small Disjuncts")

Question: Please tell me which class the citing paper (i.e., the source paper of the center hyperedge) 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: Case_Based