Neural network -- Understanding BP neural network from code

As soon as we mention the back-propagation algorithm, we unconsciously think of the derivation of random gradient descent, sigmoid activation function and the back-propagation law that makes the head bigger. Even after learning the principle of back-propagation neural network, we are still confused. Here, we recommend a textbook Python neural n ...

Posted by kendall on Thu, 28 Apr 2022 16:47:15 +0300

Bitcoin prediction with pytorch

1. Overview of bitcoin forecast Bitcoin prediction is the same as stock prediction. Bitcoin prediction is divided into two parts. The first is model training and the second is model prediction. In model training, I am divided into three parts: data reading, feature selection and model training. model training data fetchfeature selection mo ...

Posted by DillyDong on Thu, 28 Apr 2022 03:45:44 +0300

20 lines of code: image classification and prediction can be easily done in Python under Serverless architecture

Author Jiang Yu preface Image classification is a hot topic in the field of artificial intelligence. Popular interpretation is an image processing method that distinguishes different types of targets according to the different characteristics reflected in the image information. It uses computer to quantitatively analyze the image, and clas ...

Posted by newbeee on Thu, 28 Apr 2022 00:00:39 +0300

Single pass clustering algorithm for weather clustering

Introduction to clustering algorithm (1) Systematic clustering method The basic idea of systematic clustering method is that samples with short distance are clustered first, and samples with long distance are clustered later. According to the different definitions between classes, the system clustering method can be divided into 8 kind ...

Posted by neex1233 on Wed, 27 Apr 2022 13:53:03 +0300

[machine learning practice] - Titanic dataset -- Bagging promotion (random forest)

1. Write in front: This part belongs to the actual combat part, and pays more attention to the application of the algorithm in the actual project. For further understanding of the perceptron algorithm itself, please refer to the following links, which have played a great role in my learning process: [1]Hands-On Machine Learning with Scikit-Lear ...

Posted by vipul73 on Wed, 27 Apr 2022 10:28:32 +0300

Medical image | breast cancer classification using deep learning (with python drill)

Welcome to the course python machine learning - breast cancer cell mining to teach you how to establish a cell model for diagnosis and prediction of breast cancer. The link address is python machine learning - breast cancer cell mining (recorded by bloggers) Tencent classroom registration address Netease cloud classroom registration address   ...

Posted by gazoo on Tue, 26 Apr 2022 16:20:05 +0300

docker usage notes

docker usage notes   This article is original by the author. Please indicate the source for Reprint: https://www.cnblogs.com/leisure_chn/p/14349287.html This article is original by the author. Please indicate the source for Reprint: https://www.cnblogs.com/leisure_chn/p/14349287.html Description of symbols used in this paper: 1 2 3 4 5 <c ...

Posted by crash4o4 on Tue, 26 Apr 2022 11:49:30 +0300

[source code analysis] TensorFlow distributed MirroredStrategy distribution calculation

[source code analysis] TensorFlow distributed MirroredStrategy distribution calculation In the previous article, we analyzed the basic architecture of MirroredStrategy and how to update variables. In this article, we'll see how MirroredStrategy works. Specifically, we want to know how MirroredStrategy runs training methods on remote device ...

Posted by t3l on Tue, 26 Apr 2022 03:18:24 +0300

tensorflow learning 5 -- CNN image classification

This code is the source code in the following blog post. Indeed, it can be used without brain replication import tensorflow as tf from tensorflow.keras.models import Sequential from tensorflow.keras.layers import Dense,Flatten,Conv2D,MaxPool2D from tensorflow.keras.datasets import mnist #### read and preprocess data (x_train,y_train),(x_test,y ...

Posted by salman_ahad@yahoo.com on Mon, 25 Apr 2022 11:54:46 +0300

Machine learning classifier case (opencv sklearn svm ann)

Machine learning classifier case (opencv sklearn svm ann python) ps: Recently, elder martial sister left us a task to record what we have learned from doing the task since we didn't understand anything at the beginning.... Language environment Python 3 7. Library used import os import cv2 import math import time import numpy as np import tqdm f ...

Posted by miro on Mon, 25 Apr 2022 05:07:37 +0300