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# yang-zhang/multi-face.ipynb

Last active Jul 24, 2021
Multi-task Deep Learning Experiment using fastai Pytorch
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### Light-- commented Jul 10, 2020 • edited

 thanks for sharing....but, is that really a multi-task model? what's the architecture of the network really? Does it have a classical MTL structure which including a backbone and multi-head? or just only use resnet50.....sorry, could you explanin a little bit more...?

### icmpnorequest commented Aug 10, 2020

 thanks for sharing....but, is that really a multi-task model? what's the architecture of the network really? Does it have a classical MTL structure which including a backbone and multi-head? or just only use resnet50.....sorry, could you explanin a little bit more...? It's a classical multi-task learning architecture, which uses hard parameters sharing method. For example, $loss_{total} = \lambda_{age} * loss_{age} + \lambda_{gender} * loss_{gender}$. Hope it may help you

### Light-- commented Aug 11, 2020

 $loss_{total} = \lambda_{age} * loss_{age} + \lambda_{gender} * loss_{gender}$ @icmpnorequest as far as i know, only calculating the loss together doesn't make the model to have a multi-task structure, you are doing the multi-objective learning without a multi-task model structure, right? if the model structure is really using the classical multi-task structure as you said, could you tell me which paper/webpage you refer to? thanks.

### icmpnorequest commented Aug 12, 2020

 $loss_{total} = \lambda_{age} * loss_{age} + \lambda_{gender} * loss_{gender}$ @icmpnorequest as far as i know, only calculating the loss together doesn't make the model to have a multi-task structure, you are doing the multi-objective learning without a multi-task model structure, right? if the model structure is really using the classical multi-task structure as you said, could you tell me which paper/webpage you refer to? thanks. Maybe you could refer to the paper [19 CVPR] Multimodal Age and Gender Classification Using Ear and Profile Face Images