10 recommended articles about auc

Preface ROC (Receiver Operating Characteristic) curve and AUC are often used to evaluate the quality of a binary classifier. This article will first briefly introduce ROC and AUC, and then use examples to demonstrate how to make ROC curves and calculate AUC in python. Introduction to AUC AUC (Area Under Curve) is a very commonly used evaluation index in machine learning binary classification models. Compared with F1-Score, it has greater tolerance for project imbalance. Currently, it is commonly used in machine learning libraries (such as scikit- learn) generally integrates the calculation of this indicator, but sometimes the model is separate or written by itself. At this time, if you want to evaluate the quality of the training model, you have to build an AUC calculation module yourself. This article found libsvm when querying the information. -tools has a very easy-to-understand auc calculation, so I picked it out for future use. AUC calculation The calculation of AUC is divided into the following three steps: 1. Preparation of calculation data, if only

1 is used during model training. Python draws ROC curve and calculates AUC value

Introduction: This article introduces how to use Python to draw ROC curves and calculate AUC values, if necessary Friends can refer to it, let’s take a look below.

2. There is a question about the sql left connection. Why are all nulls found instead of no data?

Introduction: domain is the domain name table, domain_sell is the listed domain name table, domain_auction_history is the domain name auction table. This is my query statement: SELECT d. ,s.,MAX(h.price) AS max_price FROM domain d LEFT JOIN domain_sell s USING(domain_id) LEFT JO...

3. Build PHP on GAE Environment and enable URL rewriting gae tutorial gae website gaebol

Introduction: gae, php: Set up a PHP environment on GAE and enable URL rewriting: 1. Download quercus:http Of course, the latest version of ://quercus.caucho.com/ is the best, because in principle, the new version supports PHP better. However, during my own testing, I found that the latest 4.0.25 had some problems, so I switched to 4.0. Version 18. Select the WAR format file to download, use Winrar to decompress it, and copy the WEB-INFlib jar to the warWEB-INFlib directory under the GAE project 2. Configure Quercus: in appendin

##4 . floccinaucinihilipilification Linux The solution to the problem that the array element obtained by fgetcsv is an empty string

Introduction: floccinaucinihilipilification:floccinaucinihilipilification The solution to the problem that the array element obtained by Linux fgetcsv is an empty string Method: But on the server, many Linux servers are used, and the source program uses UTF-8, which can easily cause character encoding problems. If you just transcode the CSV file to UTF-8, there will be no problem on the Windows server, but on RedHat5 .5, in the array obtained with fgetcsv, if the content of a column is Chinese, the array element corresponding to the column is an empty string, while English is normal. At this time, you need to set the area:

5. Discuss the use analysis of Hessian in PHP_PHP tutorial

Introduction: Discuss the use analysis of Hessian in PHP. What is Hessian? Hessian is an open source remote communication protocol provided by caucho. It adopts binary RPC protocol and is based on HTTP transmission. There is no need to open another firewall port on the server side. Protocol

6. Build a PHP environment on GAE and enable URL rewriting_PHP tutorial

Introduction: Set up a PHP environment on GAE and enable URL rewriting. 1. Download quercus: http://quercus.caucho.com/ Of course, the latest version is the best, because in principle, the new version supports PHP better, but when I tested it, I found that the latest 4.0.25 exists

7. Using PHP as a Spring MVC View via Quercus (transfer)_PHP tutorial

Introduction: Using PHP as a Spring MVC View via Quercus (transfer). Original post: http://blog.caucho.com/2009/04/14/using-php-as-a-spring-mvc-view-via-quercus/ This week, Ive been prepping for a talk on Quercus in which I promised to show a demo of Spr

8. Flying Saucer implements html to pdf (some problems, continuous updates)_html/css_WEB-ITnose

Introduction: Flying Saucer implements html to pdf (some issues, continuously updated)

##9. (Oralce) Web page turning optimization example

Introduction: (Oralce) Web page turning optimization example web|page turning|optimization

10. Mysql database learning experience (4)

Introduction: Mysql database learning experience (4)

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