基于本体的用户兴趣模型构建研究

针对用户兴趣模型中本体构建和模型更新的难点和不足，提出一种基于本体论的用户兴趣模型构建方法，该方法通过领域本体、用户个性本体、校正本体和本体更新实现模型的构建。对于领域本体的构建，摒弃了训练、学习和聚类的方法，直接从开放目录专案获取类目。对于用户兴趣的更新，采用按照校正本体增加、淘汰和传递原理调整相结合的方式。实验结果表明，该模型较易生成，用户兴趣的准确度和更新的及时性都有所提高。

Research on Ontology-based User Interest Model Construction

Aiming at the difficulties and deficiency of ontology construction in user interest model and model updating, this paper presents an ontology-based approach to construct user interest model. The approach uses domain ontology, user personal ontology, correction ontology and ontology updating to achieve the model construction, it abandons the method of train, study and clusting to the construction of domain ontology, reguires category from ODP, updates user interest timely through correcting ontology construction, washing out users＇ outdate interest and adjusting interest degree. Experimental results show that this model is easier to construct, and accuracy and timely of it is improved.