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Representation learning with deep sparse auto-encoder for multi-task learning
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DOI：10.1016/j.patcog.2022.108742.png)
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We demonstrate an effective framework to achieve a better performance based on Deep Sparse auto encoder for Multi-task Learning, called DSML for short. To learn the reconstructed and higher-level features on cross-domain instances for multiple tasks, we combine the labeled and unlabeled data from all tasks to reconstruct the feature representations. Furthermore, we propose the model of Stacked Reconstruction Independence Component Analysis (SRICA for short) for the optimization of feature representations with a large amount of unlabeled data, which can effectively address the redundancy of image data. Our proposed SRICA model is developed from RICA and is based on deep sparse auto-encoder. In addition, we adopt a Semi-Supervised Learning method (SSL for short) based on model parameter regularization to build a unified model for multi-task learning. There are several advantages in our proposed framework as follows: 1) The proposed SRICA makes full use of a large amount of unlabeled data from all tasks. It is used to pursue an optimal sparsity feature representation, which can overcome the over fitting problem effectively. 2) The deep architecture used in our SRICA model is applied for higher-level and better representation learning, which is designed to train on patches for sphering the input data. 3) Training parameters in our proposed framework has lower computational cost compared to other common deep learning methods such as stacked denoising auto-encoders. Extensive experiments on several real image datasets demonstrate our proposed framework outperforms the state-of-the-art methods.(c) 2022 Elsevier Ltd. All rights reserved.
Keyword:
Deep sparse auto-encoder
Multi-task learning
RICA
Labeled and unlabeled data
期刊
IF:
7.6
论文数:
1.3W
被引数:
4.5W
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