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 "Knowledge Discovery in International Conflict Databases"):
  Abstract: Artificial Intelligence is heavily supported by military institutions, while practically no effort goes into the investigation of possible contributions of AI to the avoidance and termination of crises and wars. This paper makes a first step into this direction by investigating the use of machine learning techniques for discovering knowledge in international conflict and conflict management databases. We have applied similarity-based case retrieval to the KOSIMO database of international conflicts. Furthermore, we present results of analyzing the CONFMAN database of successful and unsuccessful conflict management attempts with an inductive decision tree learning algorithm. The latter approach seems to be particularly promising, as conflict management events apparently are more repetitive and thus better suited for machine-aided analysis.

Includes members:
  Member "Irrelevant Features and the Subset Selection Problem":
    also connected through other hyperedges:
      - Hyperedge HE-1 (induced by source paper "NP-Completeness of Searches for Smallest Possible Feature Sets a subset of the set of all")
  Member "Machine Learning Methods for International Conflict Databases: A Case Study in Predicting Mediation Outcome":
    also connected through other hyperedges:
      - Hyperedge HE-2 (induced by source paper "Structural Regression Trees")
  Member "The Possible Contribution of AI to the Avoidance of Crises and Wars: Using CBR Methods":
    also connected through other hyperedges:
      - Hyperedge HE-3 (induced by source paper "A Weighted Nearest Neighbor Algorithm for Learning with Symbolic Features")

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