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Graph depth-first traverse algorithm is based on the premise of establishing an adjacency table. According to the demand of graphic component auto-creating in monitoring system, this paper acts in a diametrically opposite way, improves graphic traverse algorithm which creates the adjacency table, and puts forward a kind of algorithm which completes graphic topology analysis with database. The algorithm automatically analyzes system graph of electric substation, traverses every equipment and line, generates the adjacency table, and sets up relationship of equipments. The key of the algorithm is how to accurately determine whether the equipment is connected or not. The application of the algorithm on electric substation automation system is satisfactory. The program using Delphi 6.0 is successfully tested in Windows 98/XP/2000.

This paper analyses the correlation of the data indicators of tourism economy resources firstly. Because there are higher nonlinear and larger volatility with the analysis and forecasting of tourism economy, this paper gives the analysis and forecasting model of tourism economy based on improved support vector regression (SVR) secondly. All kinds of kernel function are used in the numerical test based on the tourism economy data of Taian from January 2000 to December 2008 lastly. The numerical test results show that the improved SVR model of tourism economy forecasting is effective.