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• W2790201703 abstract "Multifeature learning has been a fundamental research problem in multimedia analysis. Most existing multifeature learning methods exploit graph, which must be computed beforehand, as input to uncover data distribution. These methods have two major problems confronted. First, graph construction requires calculating similarity based on nearby data pairs by a fixed function, e.g., the RBF kernel, but the intrinsic correlation among different data pairs varies constantly. Therefore, feature learning based on such predefined graphs may degrade, especially when there is dramatic correlation variation between nearby data pairs. Second, in most existing algorithms, each single-feature graph is computed independently and then combine them for learning, which ignores the correlation between multiple features. In this paper, a new unsupervised multifeature learning method is proposed to make the best utilization of the correlation among different features by jointly optimizing data correlation from multiple features in an adaptive way. As opposed to computing the affinity weight of data pairs by a fixed function, the weight of affinity graph is learned by a well-designed optimization problem. Additionally, the affinity graph of data pairs from different features is optimized in a global level to better leverage the correlation among different channels. In this way, the adaptive approach correlates the features of all features for a better learning process. Experimental results on real-world datasets demonstrate that our approach outperforms the state-of-the-art algorithms on leveraging multiple features for multimedia analysis." @default.
• W2790201703 created "2018-03-29" @default.
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• W2790201703 date "2019-05-01" @default.
• W2790201703 modified "2023-10-18" @default.
• W2790201703 title "Adaptive Structure Discovery for Multimedia Analysis Using Multiple Features." @default.
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• W2790201703 doi "https://doi.org/10.1109/tcyb.2018.2815012" @default.
• W2790201703 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/29993799" @default.
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