Prediction Analyze Of Deposition Of Decision For The Rectification In Outside Channel Of Port

The status of harbor further promotes in the national economy, the harbor's function develops unceasingly, transfers from the traditional transportation node to the center of international trade.The question of harbor and route's silt deposit is always a restriction factor, which affects many harbor development. The coastal engineering uses the mechanical control measure to deal with and resolve silt issue frequently.But regarding the study about the deposit mechanism of powder sandiness seacoast was still not perfect, therefore using the statistical method and the computer method analyze and forecast suddenly deposit is very essential.This article takes survival analysis as the computing tool for the first time, takes one north port's material as the example, studies using the deposit as the death time, and selects some targets from project practice as the input target. This article uses the survival analysis to analyze the principal components of harbor's deposit and obtain the primary factors and the independent factors, which influence harbor's deposit. Proposed the model of using the application neural network method to forecast. The model's input target adopts the independent factor which obtains by using the survival analysis.The survival material exists part of the deleting data and neglects deleting observation will cause overestimation about viewpoint's post-risky, because in the data including the data, the visiting time is short and arrives at the observation end point, however, removing the deleting data with short visiting time.The article avoids risk proportion hypothesis of the survival analysis. Every month takes as a patient, and the condition may be supposed fixedly. Taking full advantages of survival analysis to analyze the ability of the chopped data and also used the flexibility of the neural network in forecasting.