Tasks Structure Regularization in Multi-Task Learning for Improving Facial Attribute Prediction

• URL: http://arxiv.org/abs/2108.04353v1
• Date: Thu, 29 Jul 2021 08:38:17 GMT
• Title: Tasks Structure Regularization in Multi-Task Learning for Improving Facial Attribute Prediction
• Authors: Fariborz Taherkhani, Ali Dabouei, Sobhan Soleymani, Jeremy Dawson, and Nasser M. Nasrabadi
• Abstract summary: We use a new Multi-Task Learning (MTL) paradigm in which a facial attribute predictor uses the knowledge of other related attributes to obtain a better generalization performance. Our MTL methods are compared with competing methods for facial attribute prediction to show its effectiveness.
• Score: 27.508755548317712
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The great success of Convolutional Neural Networks (CNN) for facial attribute prediction relies on a large amount of labeled images. Facial image datasets are usually annotated by some commonly used attributes (e.g., gender), while labels for the other attributes (e.g., big nose) are limited which causes their prediction challenging. To address this problem, we use a new Multi-Task Learning (MTL) paradigm in which a facial attribute predictor uses the knowledge of other related attributes to obtain a better generalization performance. Here, we leverage MLT paradigm in two problem settings. First, it is assumed that the structure of the tasks (e.g., grouping pattern of facial attributes) is known as a prior knowledge, and parameters of the tasks (i.e., predictors) within the same group are represented by a linear combination of a limited number of underlying basis tasks. Here, a sparsity constraint on the coefficients of this linear combination is also considered such that each task is represented in a more structured and simpler manner. Second, it is assumed that the structure of the tasks is unknown, and then structure and parameters of the tasks are learned jointly by using a Laplacian regularization framework. Our MTL methods are compared with competing methods for facial attribute prediction to show its effectiveness.

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