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Tag: drop

Treat data dropwear using a characteristic vector PCA using a covariance matrix.

Take 2-dimensional features to facilitate graphic display

import matplotlib.pyplot as plt
from sklearn.decomposition import PCA
from sklearn.datasets import load_iris

data = load_iris()

October 17, 2021By Simo Mathematics covariance, data, dimension, drop, feature vector, Matrix, PCA, Processing, UsingLeave a Comment

GUMSTIX OVERO WIFI has declined

I am using Gumstix overo, and I cannot use Wifi normally in the past many days.

I followed the instructions in Gumstix Overo Wifi and Overo Wifi in /etc The correct parameters are set in /net

October 11, 2021By Simo Wireless continuous, drop, GUMSTIX, OVERO, WiFiLeave a Comment

Do not rely on Python third-party library to achieve gradient decline

Knowledge The original meaning of the gradient is a vector (vector), which means that the directional derivative of a function at that point takes the maximum value along the direction, that is, th

September 30, 2021By Simo Design Pattern dependence, drop, gradient, Library, python, realization, third partyLeave a Comment

ASP.NET drop-down list and dictionary

I am using C#’s drop-down list in ASP.NET.

I am trying to bind a dictionary to the drop-down list.

How to specify “text” (the key of the dictionary is the drop-down text) and “value” (v

September 29, 2021By Simo Asp ASP, ASP.NET, Dictionary, drop, ListLeave a Comment

RAID reconstruction period file system performance drops

Such a quick problem-our RAID6 array is currently being rebuilt, and there is a very obvious loss of file system performance (the home directory is NFS installed on the array). I’m a bit look

September 25, 2021By Simo Storage drop, file, performance, period, RAID, reconstruction, systemLeave a Comment
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