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In view of the existing regional traffic state classification method cannot completely reflect the controllable state of city road network problems, puts forward a constraint based on saturation equilibrium of multi intersection state controllability analysis model. First, the equilibrium of saturation control method to control the multi intersection; secondly, the equilibrium of saturation constraints,...
Electromagnetic (EM) surveys are widely used in geophysical study. Reliable 3-D forward modeling is required for the inversion and interpretation of geophysical data. We have introduced a novel method for 3-D EM modeling using stretching grids, which uses a multigrid iterative solver for solving the formed linear system of equations based on the staggered finite-difference method. The developed algorithm...
In order to provide decision and guidance for the future development of libraries, based on the Data Mining Decision Tree C4.5 Algorithm, taking the library of Changchun Institute of Technology as an example, by structuring decision tree and mining the factors which restrain users from using the library digital resource, the author gets some potential links among the factors affacting the using of...
By theoretical analysis, we constructed the mathematic model of measuring economic evaluation based panel data, and chosen 22 textile companies belonged to stock markets of Shanghai and Shenzhen to analyze. The results showed that their financial performances influence the status of free cash flows their held by individual characteristics. Moreover, we analyzed the reasons of forming these characteristics,...
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