arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1802.02885cs.ITmath.ITstat.ML
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基于$n$ - $\ell_1$加权最小化的压缩流数据在线分解

Online Decomposition of Compressive Streaming Data Using $n$-$\ell_1$ Cluster-Weighted Minimization

Huynh Van Luong, Nikos Deligiannis, Søren Forchhammer, André Kaup

摘要:

我们考虑的压缩流数据的分解方法的背景下,在线压缩鲁棒主成分分析(RPCA)。所提出的分解解决了$n$ - $\ell_1$聚类加权最小化,以将来自压缩测量的帧(或向量)序列分解成稀疏和低秩分量。我们的方法从少量的测量中处理每个时间实例的流的数据向量,而传统的批量RPCA需要访问完整的数据。$n$ - $\ell_1$聚类加权最小化利用稀疏分量及其与多个先前恢复的稀疏向量的相关性。此外,所提出的最小化可以利用稀疏组件的结构,通过聚类和重新加权迭代。该方法优于现有的方法,数值数据和实际的视频数据。

英文摘要:

We consider a decomposition method for compressive streaming data in the context of online compressive Robust Principle Component Analysis (RPCA). The proposed decomposition solves an $n$-$\ell_1$ cluster-weighted minimization to decompose a sequence of frames (or vectors), into sparse and low-rank components, from compressive measurements. Our method processes a data vector of the stream per time instance from a small number of measurements in contrast to conventional batch RPCA, which needs to access full data. The $n$-$\ell_1$ cluster-weighted minimization leverages the sparse components along with their correlations with multiple previously-recovered sparse vectors. Moreover, the proposed minimization can exploit the structures of sparse components via clustering and re-weighting iteratively. The method outperforms the existing methods for both numerical data and actual video data.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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