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
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Android
上使用
ML Kit
的文本处理应用程序
|
75
一个值会匹配多个模式，因此，例如，书的 ISBN 以三位数字开头，它与电话号码的模
式匹配，因此它被检测为两个实体！
图
5-1
：从文本中提取实体
考虑到这一点，ML Kit 拥有实体提取 API，可以创建一个能读取此类数据的应用程序
—
包括地址、电话号码、电子邮件等。我们将在本节探讨如何创建这样的应用程序。
5.1.1
创建应用程序
我假设你已经完成了第 3 章中所示的创建新应用程序的步骤。如果你还没有，我建议你
先从那里开始。和以前一样，使用 Android Studio 创建一个新的单一视图应用程序。找
到应用级 build.gradle 文件并添加实体提取库：
implementation 'com.google.mlkit:entity-extraction:16.0.0-beta1'
请注意，在撰写本书时，实体提取是测试版产品，因此可能存在一些错误。此外，如果
你正在关注此内容，请务必查看 ML Kit 文档中的实体提取站点以获取最新版本（
https://
oreil.ly/DP4WI
）。
正文.indd 75正文.indd 75 2023-4-30 9:08:202023-4-30 9:08:20
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