跳转到内容
View in the app

A better way to browse. Learn more.

彼岸论坛

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.
欢迎抵达彼岸 彼岸花开 此处谁在 -彼岸论坛

[机器学习] 如何截取完整的波形图,请教一下各位(关于机器学习、特征提取、时间序列)

发表于

最近在做机器学习相关的事情,但遇到了如下问题,导致训练出来的模型识别准确度一般

1ed1a3301b23ba3d.png

数据波形图如上图所示,我目前是通过滑动窗口来进行截取的,我的预期是截取下来的数据是红色框框的这种(两边平缓、中间波动较大),我目前的截取条件是超过阈值就自动截取

注:窗口大小是固定的

但由于条件可能过于单一,也有一定的概率截取到黑色框框的这种类型的数据

本人在数据分析和机器学习上,基本上是小白,问题描述可能也比较不专业,所以在此请教一下 V 友,这种时间序列的数据,应该如何进行特征提取

Featured Replies

No posts to show

创建帐户或登录来提出意见

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.