Question generating method and apparatus, inquiring diagnosis system, and computer readable storage medium

A question generating apparatus, comprising at least one processor, the at least one processor being configured to:

• acquire a candidate question set Q according to a dialog context, wherein the candidate question set Q comprises a first selected number of candidate questions qi, of which correlation degree with the dialog context satisfies a threshold, where i is a positive integer less than or equal to the first selected number;
• acquire an answer aj corresponding to a candidate question in the candidate question set Q to obtain an answer set A, where j is a positive integer less than or equal to the first selected number, and j=i indicates that the answer a corresponds to the candidate question qi;
• calculate an information value of each candidate question in the candidate question set Q, comprising:
• obtaining a predicted answer to the candidate question qi by using a first recurrent neural network;
• calculating a probability of generating an answer aj for the dialog context and the candidate question qi according to a similarity between the candidate questions qi and each of the other candidate questions;
• calculating an information amount brought by each candidate question qi by using a second recurrent neural network according to the probability of generating the answer aj for the dialog context and the information amount brought by each candidate question qi;
• and
• generate at least one question according to the information value of each candidate question,
• wherein the at least one processor is further configured to:
• based on a corpus and a loss function, perform training by using a stochastic gradient descent method to form the first recurrent neural network and the second recurrent neural network, and wherein the corpus comprises a dialog context for training Tcontext, a candidate question set for training TQ, and an answer set for training TA.