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China is one of the countries in the world that suffer serious natural disasters. Frequent and serious biological disasters cause great damage to crop production. The plant disease data of multiform could be analyzed and then a forecasting report was made.This article according to characteristic of the plant disease, introduced forecasts system's design and key technologies realization based on data...
Aiming at the individuation problems of network teaching system, the improved genetic algorithms with decision tree is adopted in this paper so that the student model is divided into four categories according to the studentpsilas interest, fancy, knowledge state, learning history, psychology factor, cognitive ability and so on. A personalized learning circumstance is provided for students.
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