This method changes the blind man-machine interactive process based on heuristics to goal-directed interaction on the logic reasoning base, transformation theorem and reasoning theorem are put forward and proved, reasoning matrix and network are constructed.

In order to reduce the workload of traffic demand forecasting of expressway s influencing area, the technique of OD matrix estimation was adopted considering the characteristics of expressways to modify the process of the traditional"four-stage"method.

For the problem of pile defects quantization analysis well resolved,the instantaneous response solutions of multi-defects pile on top and arbitrary location were obtained by matrix recurrence method based on the model of defective pile-soil system in stratified soil.

This paper provides the dynamic multiple of index decision making for oilfield to choose the best developing program It increases the time factor on the basis of target factor and program factor, and ideal matrix is expanded from two spaces to three spaces.

Based on the ideal matrix,a relative superior membership degree method is presented.

In this index system, then, the value and growth degree for every index are synthetically considered and an ideal matrix method for dynamic synthetical ecaluation is proposed.