Firstly,it confines the set of latent variables of probability latent semantic analysis to the set of multi-label of items to make latent variables have meanings of corresponding labels.

Discussion on ownership of partial items in the detailed list of highway contract in the process of final engineering cost;

The basic meanings and specialty of item type in MRPⅡ is discussed, and relation between these item type and item attribute.

This new algorithm revises the original similarity using item attribute,takes synthetically into account the influence of item attribute and user rating.

Traffic generation of the project was analysed and traffic rat was introduced,influence factors of similar project position were concluded,then the factors were applied in practical project position,and traffic generation forecast was carried out for the project,finally some suggestions were proposed for this method.

Above agriculture development projects economy analysis from project kinds analysis level,investment,fund raising and so on,analysis its characters,put forward the financial affairs evaluations method of middle and low outcome fields.

Collaborative filtering recommender algorithm for integrating item category and contextual information;