In depth understanding of TabNet: detailed architecture and classification code implementation
TabNet released by Google is a neural network for tabular data. It realizes instance wise feature selection through sequential attention mechanism similar to additive model, and realizes self-supervised learning through encoder decoder framework.Table data is the most commonly used data type in daily life. For example, credit card fraud detecti ...
Posted by SuNcO on Wed, 19 Jan 2022 13:18:00 +0100
Experiment 3 of machine learning and data mining in Guangzhou University
Experimental trimer analysis
1, Experimental purpose This experimental course is a professional course for students majoring in computer, artificial intelligence and software engineering. Through experiments, it helps students better master the concepts, technologies, principles and applications related to data mining and machine learning; Imp ...
Posted by mattsinclair on Tue, 18 Jan 2022 04:36:35 +0100
Pandas document learning
Pandas document learning
0. Introduction
What is Pandas?
Pandas is a powerful tool set for analyzing structured data; Its use is based on Numpy (providing high-performance matrix operation); It is used for data mining and data analysis, and also provides data cleaning function.
One of the sharp tools: DataFrame
DataFrame is a tabular data ...
Posted by Selkirk on Mon, 17 Jan 2022 07:47:30 +0100
Reptile case analysis
Next, I will introduce how to crawl and save the top 250 web page data of Douban step by step.
First, we need the foundation of python: defining variables, lists, dictionaries, tuples, if statements, while statements, etc.
Then use to understand the basic framework (principle) of the crawler: the crawler is to imitate the browser to access th ...
Posted by Artiom on Sun, 16 Jan 2022 20:51:33 +0100
The most complete tutorial of Python crawler, from introduction to case practice, can't learn. I'll give you my girlfriend!
preface
Hi! hello everyone! Recently, most of the hot lists on CSDN are Python crawler articles. It can be seen that everyone's enthusiasm for Python is still very high, so I code this article overnight these days in combination with some tutorials. If you want technical exchange, you can go to my home page and have technical exchange together ...
Posted by softnmedia on Sat, 15 Jan 2022 23:23:06 +0100
Tide information analysis
Tide information analysis
(1) Climb cninfo Vanke A website to download pdf (2) Filter specified fields from pdf (3) Visual analysis using python
preface
Bloggers need to crawl the pdf of the annual report of the specified company in the tide information, download it, filter the specified fields of the pdf, and then conduct visual analys ...
Posted by md_grnahid on Sat, 15 Jan 2022 07:17:48 +0100
Start again! FaceBook open source "one-stop service" timing weapon Kats!
Welcome to focus on Python, data analysis, data mining and fun tools!
I believe many people have heard or used FaceBook Prophet to solve time series problems. A few days ago, I shared this article: That is great! FaceBook open source, the first timing king in the whole network, Kats! Loved by many people! Some of my friends wrote to me priva ...
Posted by ashrust on Fri, 14 Jan 2022 08:52:51 +0100
DataWhale - (hands on data analysis) - task02 (Section 1 of data cleaning and feature processing) - 202201
Hands on data analysis
Chapter 2: data cleaning and feature processing
import numpy as np
import pandas as pd
#Load data train csv
df = pd.read.csv('train.csv')
df.head(10)
Brief description of data cleaning
The data we get is usually unclean. The so-called unclean means that there are missing values and some abnormal points in the data, w ...
Posted by ss-mike on Thu, 13 Jan 2022 11:55:55 +0100
Tianchi competition -- visual analysis of user emotion
Tianchi competition -- visual analysis of user emotion
catalogue
Tianchi competition -- visual analysis of user emotion
preface
1, Read the data, check the basic situation and preprocess the data
Import related Library
Read data, basic analysis data
Null value processing, data mapping
Word segmentation analysis of comments
2, Word ...
Posted by Mirrorball on Thu, 13 Jan 2022 06:37:58 +0100
Start learning data analysis task01 data loading and exploratory data analysis
Chapter II
Section I data loading and preliminary observation
1.1 loading data
1.1.1 task 1: import numpy and pandas
import numpy as np
import pandas as pd
1.1.2 task 2: load data
(1) Load data using relative paths
#Import relative path data
df=pd.read_csv('train.csv')
(2) Load data using absolute path
#Absolute path import data
...
Posted by Jtech on Tue, 11 Jan 2022 17:19:13 +0100