## [Python] use kfold in sklearn to realize cross validation in the model

In the previous article, the data set is divided into 37 points in order, which will lead to inaccurate results. Therefore, this paper uses the kfold method in sklearn to realize cross validation, so as to make the results more accurate
Last article ----- > Python post processing data format run model (pycruise) - verify data validity
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Added by **POGRAN** on *Sat, 12 Feb 2022 18:52:26 +0200*

## Machine learning artifact scikit learn nanny level introductory tutorial

Scikit learn nanny level introductory tutorial
Scikit learn is a well-known Python machine learning library, which is widely used in data science fields such as statistical analysis and machine learning modeling.
Modeling invincible: users can realize various supervised and unsupervised learning models through scikit learnVarious functions: a ...

Added by **MattG** on *Sun, 30 Jan 2022 20:15:07 +0200*

## Machine learning artifact scikit learn nanny level introductory tutorial

Official account: Special HouseAuthor: PeterEditor: Peter
Hello, I'm Peter~
Scikit learn is a well-known Python machine learning library, which is widely used in data science fields such as statistical analysis and machine learning modeling.
Modeling invincible: users can realize various supervised and unsupervised learning models through ...

Added by **sadaf** on *Wed, 12 Jan 2022 19:57:53 +0200*

## [scikit learn] K-nearest neighbor (KNN)

KNN
KNN(K-Nearest Neighbor) is one of the simplest machine learning algorithms, which can be used for classification and regression. It is a supervised learning algorithm. The idea is that if most of the K most similar (i.e. the nearest) samples of a sample in the feature space belong to a certain category, the sample also belongs to this cate ...

Added by **CyberShot** on *Wed, 05 Jan 2022 05:56:09 +0200*

## Explanation of Python scikit learn feature extraction

Feature extraction is simply to convert a series of data into digital features that can be used for machine learning. sklearn.feature_extraction is a module of scikit learn feature extraction
This paper summarizes the following contents:
Onehot encodingDictVectorizer usesCountVectorizer useTfidfVectorizer usesHashingVectorizer uses
1.O ...

Added by **j4v1** on *Wed, 29 Dec 2021 09:42:42 +0200*