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: "What online Machine Learning can do for Knowledge Acquisition A Case Study"
  Abstract: This paper reports on the development of a realistic knowledge-based application using the MOBAL system. Some problems and requirements resulting from industrial-caliber tasks are formulated. A step-by-step account of the construction of a knowledge base for such a task demonstrates how the interleaved use of several learning algorithms in concert with an inference engine and a graphical interface can fulfill those requirements. Design, analysis, revision, refinement and extension of a working model are combined in one incremental process. This illustrates the balanced cooperative modeling approach. The case study is taken from the telecommunications domain and more precisely deals with security management in telecommunications networks. MOBAL would be used as part of a security management tool for acquiring, validating and refining a security policy. The modeling approach is compared with other approaches, such as KADS and stand-alone machine learning.

Connected through hyperedge HE-1 (induced by source paper "Cooperation of Data-driven and Model-based Induction Methods for Relational Learning"):
  with members:
    (none)

Connected through hyperedge HE-2 (induced by source paper "An Efficient Subsumption Algorithm for Inductive Logic Programming"):
  with members:
    - "Efficient Algorithms for -Subsumption"
    - "Inductive Learning of Characteristic Concept Descriptions from Small Sets of Classified Examples"
    - "Efficient -Subsumption based on Graph Algorithms"

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: Rule_Learning