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Deep Learning of Part-Based Representation of Data Using Sparse Autoencoders With Nonnegativity Constraints

机译:使用具有非负约束的稀疏自动编码器对基于零件的数据表示进行深度学习

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摘要

We demonstrate a new deep learning autoencoder network, trained by a nonnegativity constraint algorithm (nonnegativity-constrained autoencoder), that learns features that show part-based representation of data. The learning algorithm is based on constraining negative weights. The performance of the algorithm is assessed based on decomposing data into parts and its prediction performance is tested on three standard image data sets and one text data set. The results indicate that the nonnegativity constraint forces the autoencoder to learn features that amount to a part-based representation of data, while improving sparsity and reconstruction quality in comparison with the traditional sparse autoencoder and nonnegative matrix factorization. It is also shown that this newly acquired representation improves the prediction performance of a deep neural network.
机译:我们演示了一种新的深度学习自动编码器网络,该网络由非负约束算法(非负约束自动编码器)训练,可以学习显示基于部分数据表示的特征。学习算法基于约束负权重。基于将数据分解为多个部分来评估算法的性能,并在三个标准图像数据集和一个文本数据集上测试其预测性能。结果表明,与传统的稀疏自动编码器和非负矩阵分解相比,非负约束迫使自动编码器学习相当于基于部分数据表示的特征,同时提高了稀疏性和重构质量。还表明,这种新获得的表示提高了深度神经网络的预测性能。

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