Ridge regression model | machine learning

1. Ridge regression model 1.1 background For regression problems, their basic contents are basically the same, so ridge regression model and linear regression model similar: y = θ 0 ...

Posted by baranwalpk on Mon, 20 Sep 2021 23:56:17 +0200

Machine Learning Basic One Stop

Catalog 1. Overview of the process (this article is mainly the red box part) 2. Feature Processing Section 1. Overview 1.1 Some common questions 2. Specific treatment (see red box above for specific order) 2.1 Missing value handling (delete or fill) 2.2 Data format processing (data set partition, time format, etc.) 2.3 Data sampling (ov ...

Posted by jwwceo on Sun, 19 Sep 2021 17:34:45 +0200

[Layout optimization] Sparrow-based wireless sensor network (WSN) coverage optimization matlab source code

1. WSN Model 1.1 Motivation In recent years, with the development of distributed environment such as peer-to-peer network, cloud computing and grid computing, wireless sensor network (WSN) has been widely used.Is a new computing and network mode that can be defined as a network of tiny, small, expensive and highly intelligent devices called s ...

Posted by ghostrider1337 on Fri, 17 Sep 2021 06:38:56 +0200

Classification using kNN algorithm python implementation

Ideas and steps of kNN algorithm The basic idea of kNN algorithm is as follows: Suppose there are n samples in the sample set, which have discrimination on m features, and they belong to one of 0 or 1 respectively. Suppose the eigenvector of the ith sample is ( a ...

Posted by phpcharan on Thu, 16 Sep 2021 02:17:28 +0200

Standard process of machine learning modeling for Python data analysis (data engineering + modeling parameter adjustment + model evaluation + whole process visualization)

Author CSDN: Sisyphus of the attack Link to this article: https://blog.csdn.net/qq_42216093/article/details/116994199 Copyright notice: This article is the author's original article. Reprint requires the consent of the author Nowadays, machine learning is hot, and Python is the most commonly used implementation of machine learning for ...

Posted by XxDeadmanxX on Tue, 14 Sep 2021 04:58:38 +0200

Nested cross validation

20210911 0. Introduction In most cases, machine learning experiments are divided directly by train test. Generally speaking, this method has little impact on the data set with relatively small data set, but it is biased for the data set with relatively small data set. (I remember it was said in a book, and it was also mentioned in the course ...

Posted by Rocu on Sun, 12 Sep 2021 00:10:02 +0200

Homework_Week6_Coursera[Machine Learning]AndrewNg,Part1.Advice for Applying Machine Learning

First question subject 1 You train a learning algorithm, and find that it has unacceptably high error on the test set. You plot the learning curve, and obtain the figure below. Is the algorithm suffering from high bias, high variance, or neither? answer: C Resolution: It's obvious from this figure that no amount of data is useful. ...

Posted by afrancis on Sat, 11 Sep 2021 01:44:19 +0200

OpenCV4 machine learning: principle and implementation of K-means

preface: This column mainly combines OpenCV4 to realize some basic image processing operations, classical machine learning algorithms (such as K-Means, KNN, SVM, decision tree, Bayesian classifier, etc.), and common deep learning algorithms. Series of articles, continuously updated: OpenCV4 machine learning (I): Construction and configuratio ...

Posted by Christopher on Tue, 07 Sep 2021 06:41:32 +0200

A garbage sorting project takes you to play with the paddle

A garbage sorting project takes you to play with the paddle (2) Continued above< A garbage sorting project takes you to play with the paddle (1) >: Based on PaddleClas Realize garbage classification, export the information model, use PaddleHub Serving for service deployment, and use PYQT5 to realize visualization. This paper takes waste ...

Posted by AeonE on Tue, 07 Sep 2021 06:13:21 +0200

[NLP] ⚠️ Learn not to hit me! Learn basic operation in half an hour 2 ⚠️ key word

summary From today on, we will start a journey of natural language processing (NLP). NLP can let us process, understand and use human language to realize the communication bridge between machine language and human language key word Keywords, i.e. key words, can describe the essence of an article and have important applications in docum ...

Posted by kundan on Mon, 06 Sep 2021 05:57:58 +0200