Ex6_ Machine learning_ Wu Enda course assignment (Python): SVM Support Vector Machines
Ex6_ Machine learning_ Wu Enda course assignment (Python): SVM Support Vector Machines
instructions:
This article is about Mr. Wu Enda's learning notes of the machine learning course on Coursera.
The first part of this paper first introduces the knowledge review and key notes of the corresponding week of the course, as well as the i ...
Posted by Fatboy on Sun, 30 Jan 2022 00:23:31 +0100
Residual network ResNet source code analysis - pytoch version
Source GitHub address
The torchvision module in PyTorch framework includes: torchvision datasets,torchvision.models,torchvision. The three sub packages of transforms. For details, please refer to the official website: http://pytorch.org/docs/master/torchvision/index.html. Refer to github for specific code: https://github.com/pytorch/vision/tr ...
Posted by modcar on Sat, 29 Jan 2022 20:38:25 +0100
auc computing logic
1. auc meaning
AUC (Area under curve) is a commonly used two classification evaluation method for machine learning. It directly means the area under the ROC curve, as shown in the following figure
The column in the table represents the forecast classification, and the row represents the actual classification:Actual 1, forecast 1: real ...
Posted by dpsd on Sat, 29 Jan 2022 20:16:59 +0100
Building a deep and intensive learning environment
Conda environment construction
Download and install
Download from official website
Tsinghua source image download
New environment
conda create -n rl python=3.8
Activate environment
conda activate rl
Install software
The IDE recommends installing Jupyter Lab or pycham
Execute the following command to install and run jupyter lab in rl environ ...
Posted by tooNight on Sat, 29 Jan 2022 14:47:28 +0100
Implementation of CF algorithm based on matrix decomposition
Dataset used: link: https://pan.baidu.com/s/1OLQE7mpefXGRpADyVEkpVQ
Extraction code: 7x5c
1, History of matrix decomposition
1.1 Traditional SVD
In general, SVD matrix decomposition refers to SVD (singular value) decomposition technology. Here, we name it Traditional SVD (traditional and classic), and its formula is as follows:
The form of Tra ...
Posted by gtibok on Sat, 29 Jan 2022 00:43:03 +0100
From principle to actual combat, hand touch will take you to master the K-nearest neighbor algorithm [necessary for the introduction of machine learning]
preface
K-nearest neighbor (k-NN) is a basic classification and regression method. It is one of the simplest algorithms in data mining technology. Its core function is to solve the supervised classification problem.
KNN can quickly and efficiently solve the prediction classification problem based on special data sets, but it does not produce ...
Posted by danscreations on Sat, 29 Jan 2022 00:14:44 +0100
Machine learning notes Week01
Deep learning and pytorch Foundation
Machine learning is a means to realize artificial intelligence. Its purpose is to enable programs to use past experience to learn independently and optimize answers
Deep learning is a specific method to realize machine learning
Model classification of machine learning
A specific problem can be ...
Posted by Azad on Fri, 28 Jan 2022 12:57:41 +0100
Collaborative filtering recommendation algorithm
1, Recommended model construction process
Data - > features - > ML algorithm - > prediction output
1.1 data cleaning / data processing
data sources
Dominant data
Rating
Comments / comments
Invisible data
Order history
Cart events plus shopping cart
Page views page browsing
Click thru Click
Search log search record
Data volume ...
Posted by cwncool on Fri, 28 Jan 2022 12:02:06 +0100
PyTorch deep learning practice introduction note 9 exercise - Multi classification using kaggle's Otto data set
In the article Introduction to PyTorch deep learning practice notes 9-SoftMax classifier Mr. Liu gave an after-school exercise and downloaded kaggle's Otto dataset Do more classification.
0 Overview
Let's take a look at the background of the official website.
The Otto Group is one of the world's biggest e-commerce companies, with subsidiar ...
Posted by saint4 on Fri, 28 Jan 2022 06:24:41 +0100
boardgame.io Gobang: AI transformation
Too long to see: Click here View the complete code.
Last We use boardgame io + wgo. JS + react made a simple Gobang game and used the engine to match our AI. However, AI is very weak. Let's try to transform it in the direction of AlphaGo and create our own AI.
Monte Carlo
We know that AlphaGo uses Monte Carlo search and neural network. Thro ...
Posted by karapantass on Fri, 28 Jan 2022 04:29:02 +0100