The invention provides a cross-
modal generalized zero sample retrieval method based on a dual learning
generative adversarial network. The method comprises: constructing a
generative adversarial network based on dual learning; mapping the high-dimensional visual features of different
modes to a common low-dimensional semantic embedding space; secondly, constructing multiple constraint mechanisms to perform cyclic consistency constraint, generative adversarial constraint and classifier constraint so as to maintain visual-
semantic consistency and generated feature-source feature consistency, andperforming cross-
modal retrieval after training of the whole network, so that the model is more powerful in performance in generalization of zero-sample retrieval. Meanwhile, in the whole training process, paired
multimedia data pairs on the pixel level do not need to serve as training samples, only
paired data on the category are needed, so that the complexity and expensive cost of
data set collection are reduced, the retrieval effect is better, and
performance improvement is more obvious in the zero-sample generalization retrieval problem.