arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1602.09013stat.MLcs.LG
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超越CCA:多视图模型的矩匹配

Beyond CCA: Moment Matching for Multi-View Models

INRIA(法国国家信息与自动化研究所);École normale supérieure(巴黎高等师范学院)

Anastasia Podosinnikova, Francis Bach, Simon Lacoste-Julien

摘要:

我们介绍了三个新的半参数扩展的概率典型相关分析的可识别性保证。我们认为矩匹配技术在这些模型中的估计。为此,通过绘制新模型和离散版本的独立成分分析(DICA)之间的明确联系,我们首先将DICA累积量张量扩展到新的离散版本的CCA。通过进一步利用与独立成分分析的紧密联系,我们引入了广义协方差阵,它可以取代矩匹配框架中的累积量张量,从而显著地提高了样本复杂度,简化了推导和算法。由于张量幂方法或正交联合对角化方法在新的设置中不适用,我们使用非正交联合对角化技术来匹配累积量。我们证明了所提出的模型和估计技术的性能与合成和真实数据集的实验。

英文摘要:

We introduce three novel semi-parametric extensions of probabilistic canonical correlation analysis with identifiability guarantees. We consider moment matching techniques for estimation in these models. For that, by drawing explicit links between the new models and a discrete version of independent component analysis (DICA), we first extend the DICA cumulant tensors to the new discrete version of CCA. By further using a close connection with independent component analysis, we introduce generalized covariance matrices, which can replace the cumulant tensors in the moment matching framework, and, therefore, improve sample complexity and simplify derivations and algorithms significantly. As the tensor power method or orthogonal joint diagonalization are not applicable in the new setting, we use non-orthogonal joint diagonalization techniques for matching the cumulants. We demonstrate performance of the proposed models and estimation techniques on experiments with both synthetic and real datasets.

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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