並列摘要
This research finds the most similar meteorological factors. We predict the typhoon rainfall with the case-based reasoning of the Euclidean distance and weight similarity. We compare the history of a typhoon's data by direction, longitude, latitude, wind velocity and strength. Then we use regression analysis method to infer rainfall with the atmospheric pressure. The results of the rainfall forecast reach 70 to 75 percent. The errors location of maximum rainfall forecast are nearby two counties according to the Euclidean distance method.