Model training method and device, and wrongly-written character identification method and device

The invention discloses a model training method and device, and a wrongly-written character identification method and device. The model training method comprises steps that the text information and the time information corresponding to each sentence of the text information are extracted from a preset text data source; a word vector of each word of the text information and the time vector corresponding to a sentence of each word are determined, the word vector is a multi-dimensional array used for uniquely expressing the word, and the time vector corresponding to the sentence of each word is used for uniquely expressing the publish time of the sentence of the word; sentences of the text information are taken as units, the time vector corresponding to each sentence and the word vector corresponding to each word of the sentence are inputted to a memory neural network, the neural network model is acquired through training, and the neural network model is applied to identify the wrongly-written characters in the t