关键词: 多层语义, 检索, 跨模态, 融合, 深度学习

Abstract: How to explore the inherent relations of different modalities is the core problem of cross-modal retrieval.The previous works demonstrate that the models which incorporate representation learning and correlation learning into a single process are more suitable for cross-modal retrieval task,but these models only contain the 1-1 correspondence correlations between different modalities.However,different modalities are more likely to have different granularities of semantics abstraction,and the correlations between different modalities are more likely to occur in different layers of semantic at the same time.This paper proposed a cross-modal retrieval model fusing multilayer semantic.The model benefits from the architecture of deep boltzmann machine which is an undirected graph model and implements that each semantic layer of text modality is associated with multiple different semantic layers of image modality at last,and explores the inherent N-M relations of different modalities more sufficiently.The results of experiments on three real and public datasets demonstrate that this model is obviously superior to the state-of-art models,and has higher accuracy of retrieval.

Key words: Cross-modal, Deep learning, Fusion, Multilayer semantics, Retrieval