225 - Attention U-net. What is attention and why is it needed for U-Net?
What is attention and why is it needed for U-Net?
Attention in U-Net is a method to highlight only the relevant activations during training. It reduces the computational resources wasted on irrelevant activations and provides better generalization of the network.
Two types of attention:
1. Hard attention
Highlight relevant regions by cropping.
One region of an image at a time; this implies it is non differentiable and needs reinforcement learning.
Network can either pay attention or not, nothing in between.
Backpropagation cannot be used.
2. Soft attention
Weighting different parts of the image.
Relevant parts of image get large weights and less relevant parts get small weights.
Can be trained with backpropagation.
During training, the weights also get trained making the model pay more attention to relevant regions.
In summary – it adds weights to pixels based on the relevance.
Why is attention needed in U-Net?
U-net skip connection combines spatial information from the down-sampling path with
21 view
11
1
2 weeks ago 00:03:54 4
ลูกสาวพ่อผมขอนะครับ - Bonnadol [Official MV]
3 weeks ago 00:47:07 0
С ДОБРЫМ УТРОМ! ОПЯТЬ ДВАДЦАТЬ ПЯТЬ! - ДОБРЫЕ СОВЕТСКИЕ ПЕСНИ ИЗ КИНОФИЛЬМОВ
4 weeks ago 00:00:58 0
Рецепт в комментариях #самса #самсушки #рецептсамсы #песочнаясамса
1 month ago 01:14:04 0
Обучение логистов с нуля! Базовый курс по логистике.
1 month ago 01:06:55 2
Я СЫГРАЛ на САМОМ БОЛЬШОМ ТУРНИРЕ | Mortal Kombat 1!
2 months ago 00:00:00 0
Sun Dried Mushrooms Recipe and How To Make Sun-Dried Mushroom Curry | Vitamin D Rich
2 months ago 00:37:59 0
День, 2: Дождь, Уборка, 2()
2 months ago 00:00:15 1
Блестящая глазурь на сахарном сиропе и желатине
3 months ago 01:11:31 1
Азамат Абильдаев: почему я поддерживаю СВО и Владимира Путина
3 months ago 00:19:50 6
ПРИШЛА ЗИМА В АПРЕЛЕ, РЫБАЛКА НА ЛЕНЁВКЕ ПО БЕЛОЙ РЫБЕ, НА ПАРУ СКОВОРОДОК ЕСТЬ, ЛОВИМ НА УРАЛЕ!