January 2023
Intermediate to advanced
288 pages
6h 6m
Chinese
Content preview from 移动端AI与ML应用开发：基于iOS和Android
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
34
|
第
2
章
实际
：
叶锈病
；
预测
：
叶锈病 实际
：
角叶斑病
；
预测
：
角叶斑病
图
2-13
：具有迁移学习的复杂图像
2.3
总结
在本章中，你认识了计算机视觉并了解了它的真正含义
—
编写代码来帮助计算机解析
图像内容。在从头构建一个可以识别 10 种时尚类别的神经网络之前，你学习了如何构
建神经网络以识别多个类别。之后，你了解了迁移学习的概念，你可以在其中使用已在
数百万张图像上进行预训练的现有模型来识别许多类别，并使用它们的内部变量将它们
应用到你的场景中。从中，你看到了如何从 TensorFlow Hub 下载模型并重新使用，以很
少的代码行获得非常复杂的模型。例如，你看到了一个用于植物豆类疾病的分类器，该
分类器是使用仅定义两层的模型编写的！这会形成你将在本书中主要使用的方法论，因
为从这里开始，重点将是在移动应用程序中使用模型。我们将在第 3 章开始这段旅程，
介绍 ML Kit，这是一个框架，可帮助你快速构建原型或跨 Android 和 iOS 使用的交钥匙
ML 工程。
正文.indd 34正文.indd 34 2023-4-30 9:07:482023-4-30 9:07:48
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.