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Automatic image semantic annotation is of great importance for image retrieval, therefore, this paper aims to recommend tags for social images according to user preferences. With the rapid development of the image-sharing community, such as Flickr, the image resources of the social network with rich metadata information demonstrate explosive growth. How to provide semantic tagging words (also known as tag recommendation) to social images through image metadata information analysis and mining is still a question, which brings new challenges and opportunities to the semantic understanding of images. Making full use of metadata for semantic analysis of images can help to bridge the semantic gap. Thus, we propose a novel personalized tag recommendation algorithm based on the convolution feature and weighted random walk. Particularly, for a given target image, we select its visual neighbors and determine the weight of each neighbor by mining the influence of user group metadata in Flickr on image correlation, and combining group information and visual features extracted by Convolutional Neural Network (CNN). Afterwards, the weighted random walk algorithm is implemented on the neighbor-tag bipartite graph. Experimental results show that tags recommended by our proposed method can accurately describe the semantic information of images and satisfy the personalized requirements of users.

Personalized Tag Recommendation Based on Convolution Feature and Weighted Random Walk