Basic process of modeling and evaluation:
Zero, characteristic Engineering
import pandas as pd
import numpy as np
import seaborn as sns
import matplotlib.pyplot as plt
from IPython.display import Image
plt.rcParams['font.sans-serif'] = ['SimHei'] # Used to display Chinese labels normally
Posted on Thu, 23 Sep 2021 08:10:50 -0400 by jOE :D
How to deal with missing values in machine learning
Note: this data is from kaggle, please stamp for details here , original reference connection, please stamp here , this paper is a long one, which aims to introduce some ideas and details in the process of EDA.
The purpose of this EDA(Exploratory Data Analysis) is ...
Posted on Thu, 23 Sep 2021 05:58:16 -0400 by g00bster
Typical case analysis of BP neural network
[example 5-1] 60 groups of gasoline samples were scanned by Fourier near infrared transform spectrometer. The scanning range was 900 ~ 1700nm and the scanning interval was 2nm. The spectral curve of each sample contained 401 wavelength points. At the same time, the octane number content was determined ...
Posted on Thu, 23 Sep 2021 03:35:19 -0400 by northernmonkey
Data and features determine the upper limit of machine learning, and models and algorithms only approximate this upper limit
1. Data preprocessing
data acquisitionData cleaning: remove dirty dataData sampling: it can be used when the data is unbalanced, including up sampling and down sampling; Positive sample > negative sample, and the amo ...
Posted on Tue, 21 Sep 2021 18:16:19 -0400 by little_webspinner
from sklearn.datasets import load_boston
from sklearn.model_selection import train_test_split
from sklearn.preprocessing import StandardScaler
from sklearn.linear_model import LinearRegression
from sklearn.metrics import mean_squared_error
from sklearn.linear_model import SGDRegressor
import pandas as pd
# get data
Posted on Tue, 21 Sep 2021 16:58:37 -0400 by xwishmasterx
Reprint address: https://zhuanlan.zhihu.com/p/382460472 Logo-beam is a laser radar SLAM algorithm. The corresponding paper is "logo-beam: light and ground optimized lidar odometry and mapping on variable terrain", with open source code.
Next, we will make a simple analysis of logo-logo in combination with the paper and code. Logo-log ...
Posted on Tue, 21 Sep 2021 15:39:05 -0400 by pure_skill_2000
If there is a skill in the field of computers that will remain obsolete after ten or twenty years, I think it must be algorithms and data structures.
I. The Dutch Flag
The so-called Dutch flag problem is that given a set of numbers, put the number less than a certain number of nums on the left, the number equal to num in the ...
Posted on Tue, 21 Sep 2021 12:06:16 -0400 by mudasir
Author home page( Silicon based workshop of slow fire rock sugar): Slow fire rock sugar (Wang Wenbing) blog silicon based workshop of slow fire rock sugar _csdnblog
Website of this article: https://blog.csdn.net/HiWangWenBing/article/details/120378620
Chapter 1 Preface
Chapter 2 numerical definition of derivative
Chapter 3 numer ...
Posted on Tue, 21 Sep 2021 02:47:55 -0400 by robin
Without data but with expert knowledge, knowledge can also be transformed into computer-aided model.
Data is the basis of the model, but without data, only domain experts can well describe or even predict the "situation" of a given environment. I will summarize the concept of knowledge driven model based on Bayesian probability, and ...
Posted on Tue, 21 Sep 2021 02:25:12 -0400 by meritre
Overview of data processing in deep learning
Three elements of deep learning: data, computing power and algorithm In engineering practice, the importance of data has attracted more and more attention. In the data science community, there is a saying that "data determines the upper limit of the model, and algorithm determines the lower lim ...
Posted on Mon, 20 Sep 2021 21:38:27 -0400 by ven.ganeva