A Kind of Improved Vector Space Model

Information filtration is a kind of classical application of large-scale network content processing. It carries out filtration operation to successively coming information, remaining those information that meets users´ demands and deleting those information that falls short of users´ demands. Vector space model is one of its common classical models. This thesis made research and improvement on Vector Space Model (VSM), and on this basis put forward to introducing a kind of center space vector to solve the problem of thesaurus. This method has relatively high precision rate and recall rate, and improves the integral capability of the model.