Title
Shared-Private Information Bottleneck Method for Cross-Modal Clustering.
Abstract
Recently, the cross-modal analysis has drawn much attention due to the rapid growth and widespread emergence of multimodal data. It integrates multiple modalities to improve learning and generalization performance. However, most previous methods just focus on learning a common shared feature space for all modalities and ignore the private information hidden in each individual modality. To address this problem, we propose a novel shared-private information bottleneck (SPIB) method for cross-modal clustering. First, we devise a hybrid words model and a consensus clustering model to construct the shared information of multiple modalities, which capture the statistical correlation of low-level features and the semantic relations of the high-level clustering partitions, respectively. Second, the shared information of multiple modalities and the private information of individual modalities are maximally preserved through a unified information maximization function. Finally, the optimization of SPIB function is performed by a sequential "draw-and-merge" procedure, which guarantees the function converges to a local maximum. Besides, to solve the lack of tags in cross-modal social images, we also investigate the use of structured prior knowledge in the form of knowledge graph to enrich the information in semantic modality and design a novel semantic similarity measurement for social images. The experimental results on four types of cross-modal datasets demonstrate that our method outperforms the state-of-the-art approaches.
Year
DOI
Venue
2019
10.1109/ACCESS.2019.2904554
IEEE ACCESS
Keywords
Field
DocType
Cross-modal clustering,information bottleneck,mutual information,knowledge graph,social images
Semantic similarity,Modalities,Data modeling,Feature vector,Computer science,Consensus clustering,Artificial intelligence,Mutual information,Information bottleneck method,Cluster analysis,Machine learning,Distributed computing
Journal
Volume
ISSN
Citations 
7
2169-3536
1
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Xiaoqiang Yan1205.35
Yangdong Ye211829.64
Yiqiao Mao310.34
Hui Yu412821.50