after the discussion of the organization and data access of the data, the paper presents some pop kinds of information retrieve models nowadays, such as boolean logical model, vector space retrieve model and probability retrieve model 在讨论了分布式环境中的数据组织和访问后,本文又具体讨论了现今几种主要的信息检索模型:布尔逻辑模型,向量空间模型,以及概率模型等。
according to the varied kinds of the retrieve models in the course of the design and our practical situation, we put forward a new information retrieve system combining the boolean logical model and the vector space retrieve model, which is named extended weighting vector space retrieve model 在系统的设计实现过程中,我们根据上文提到的不同检索模型,结合我们的实际情况,提出了一种结合布尔逻辑模型和空间向量模型的新的检索系统,即扩展的加权向量空间检索模型。