多层语义对齐的跨模态检索方法研究

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为解决具有语义相关的文本、图像数据互检索问题,提出一种基于多层语义对齐的跨模态检索方法。采用跨模态多层网络来提取图像和文本特征,通过注意力机制计算特征向量间的关联度,对提取的特征进行实体和关系对齐。为增强语义约束,采用全局语义一致性策略从给定的文本数据提取语义标签,利用文本加权向量进行多标签预测,进一步为实体和关系对齐提供了全局语义约束。在Flickr30k和MSCOCO两个公开数据集上的实验结果验证了所提方法的有效性。
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