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: "Focusing Construction and Selection of Abductive Hypotheses"
  Abstract: Many abductive understanding systems explain novel situations by a chaining process that is neutral to explainer needs beyond generating some plausible explanation for the event being explained. This paper examines the relationship of standard models of abductive understanding to the case-based explanation model. In case-based explanation, construction and selection of abductive hypotheses are focused by specific explanations of prior episodes and by goal-based criteria reflecting current information needs. The case-based method is inspired by observations of human explanation of anomalous events during everyday understanding, and this paper focuses on the method's contributions to the problems of building good explanations in everyday domains. We identify five central issues, compare how those issues are addressed in traditional and case-based explanation models, and discuss motivations for using the case-based approach to facilitate generation of plausible and useful explanations in domains that are complex and imperfectly un derstood.

Connected through hyperedge HE-1 (induced by source paper "Goal-based Explanation Evaluation 1"):
  with members:
    (none)

Connected through hyperedge HE-2 (induced by source paper "ADAPtER: an Integrated Diagnostic System Combining Case-Based and Abductive Reasoning"):
  with members:
    - "A utility-based approach to learning in a mixed Case-Based and Model-Based Reasoning architecture"
    - "On the Usefulness of Re-using Diagnostic Solutions"

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: Case_Based