Information processing method and device and storage medium

Embodiments of the invention disclose an information processing method and apparatus, and a storage medium. The method comprises the steps of obtaining to-be-input information of a first type; inputting the to-be-input information into the target similar information detection model to obtain output information of a second category associated with the to-be-input information; the first category and the second category are different categories; wherein the target similar information detection model is obtained by training through the following steps: constructing a positive example sample set and a positive example sample similarity label by utilizing a historical search click log; according to information in the positive example sample set, negative example sample information with different similarity degrees is collected, and a negative example sample set and corresponding negative example sample similarity labels are obtained; and training an initial similar information detection model by using the positive