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 "A Performance Model for Knowledge-based Systems"):
  Abstract: Most techniques for verification and validation are directed at functional properties of programs. However, other properties of programs are also essential. This paper describes a model for the average computing time of a KADS knowledge-based system based on its structure. An example taken from an existing knowledge-based system is used to demonstrate the use of the cost-model in designing the system.

Includes members:
  Member "A utility-based approach to learning in a mixed Case-Based and Model-Based Reasoning architecture":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "A Comparative Utility Analysis of Case-Based Reasoning and Control-Rule Learning Systems")
  Member "Redesigning control knowledge of knowledge-based systems: machine learning meets knowledge engineering":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "Learning Problem-Solving Concepts by Reflecting on Problem Solving")
  Member "Learning Control Knowledge in Models of Expertise ECML'95 Workshop on Knowledge-Level Modelling and Machine Learning":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "Problem Solving for Redesign")

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