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【Scikit-Learn Chinese Document] 30 Model Evaluation: Quality of Quantitative Forecast-Model Selection and Evaluation-User Guide | ApacheCN

https://qaofficial.com/post/2019/05/15/70492-scikit-learn-chinese-document-30-model-evaluation-quality-of-quantitative-forecast-model-selection-and-evaluation-user-guide-apachecn.html 2019-05-15
chinese document: http://sklearn.Apache cn.org/cn/stable/modules/model _ evaluation.html english document: http://sklearn.Apache cn.org/en/stable/modules/model _ evaluation.html Official Document: http://scikit-learn.org/stable/ github: https://github.com/apachecn/scikit-learn-doc-zhStar, we have been working hard) Contributor: https://github.com/apachecn/scikit-learn-doc-zh# Contributor About Us: http://www.apachecn.org/organization/209.html 3.3. Model Evaluation: Quantifying the Quality of Forecast There are 3 different API to evaluate the quality of model predictions:

【Scikit-Learn Chinese Document] XXX: Model Evaluation: Quality of Quantitative Forecast-Model Selection and Evaluation-User Guide | ApacheCN

https://qaofficial.com/post/2019/05/15/70491-scikit-learn-chinese-document-xxx-model-evaluation-quality-of-quantitative-forecast-model-selection-and-evaluation-user-guide-apachecn.html 2019-05-15
chinese document: http://sklearn.Apache cn.org/cn/stable/modules/model _ evaluation.html english document: http://sklearn.Apache cn.org/en/stable/modules/model _ evaluation.html Official Document: http://scikit-learn.org/stable/ github: https://github.com/apachecn/scikit-learn-doc-zhStar, we have been working hard) Contributor: https://github.com/apachecn/scikit-learn-doc-zh# Contributor About Us: http://www.apachecn.org/organization/209.html 3.3. Model Evaluation: Quantifying the Quality of Forecast There are 3 different API to evaluate the quality of model predictions:

Add Sql Job, New Step Appears: Creating Instance from COM Component with CLSID {Aa40d1d6-CAEF-4A56-B9BB-D0d3dc976ba2} in IClassFactory Failed due to the following error: c00

https://qaofficial.com/post/2019/05/15/70038-add-sql-job-new-step-appears-creating-instance-from-com-component-with-clsid-aa40d1d6-caef-4a56-b9bb-d0d3dc976ba2-in-iclassfactory-failed-due-to-the-following-error-c00.html 2019-05-15
Add Sql Job, New Step Appears: Creating Instance from COM Component with CLSID {Aa40d1d6-CAEF-4A56-B9BB-D0d3dc976ba2} in IClassFactory Failed due to the following error: c001f011.The solution of

After updating and installing the APP, click "Open Directly" to open the app, press home key to return to the desktop, click the icon again to enter the program and start again, instead of returning to the last open interface.

https://qaofficial.com/post/2019/05/15/70466-after-updating-and-installing-the-app-click-ampquotopen-directlyampquot-to-open-the-app-press-home-key-to-return-to-the-desktop-click-the-icon-again-to-enter-the-program-and-start-again-instead-of-returning-to-the-last-open-interface..html 2019-05-15
1.第一个启动页(WelcomeActivity )public class WelcomeActivity extends Activity { private final MyHandler myHandler = new MyHandler(this); private static class MyHandler extends Handler { private final WeakReference<WelcomeActivity> mActivity; public MyHandler(WelcomeActivity activity) { this.mActivity = new WeakReference<WelcomeActivity>(activity); } @Override public void handleMessage(Message msg) { WelcomeActivity

Current Situation and Boundary of Deep Learning, Problems Not Well Solved

https://qaofficial.com/post/2019/05/15/70651-current-situation-and-boundary-of-deep-learning-problems-not-well-solved.html 2019-05-15
Neural Network is an important machine learning technology, and it is also the hottest research direction at present, that is, the foundation of deep learning.Professor Shi Daming first made a detailed analysis of the two schools of artificial intelligence: Symbolism and connectionism, and then described the two methods of machine learning: supervised learning and unsupervised learing, step by step. The development of neural network includes four milestones: perceptron, multilayer perceptron, support vector machine, and deep learning.

Difference between Classification and Regression

https://qaofficial.com/post/2019/05/15/70368-difference-between-classification-and-regression.html 2019-05-15
There are two fields in data mining and artificial intelligence: classification and regression.It is easy to understand the classification alone, but it is difficult to distinguish clearly when thinking about the return. So what are the differences and connections between the two?The following is a brief introduction to my understanding. 参考资料:http://www.zhih

MRF-Markov Random Field Face Recognition Principle

https://qaofficial.com/post/2019/05/15/70724-mrf-markov-random-field-face-recognition-principle.html 2019-05-15
http://blog.sina.com.cn/s/blog_92c398b00102vs3q.html Baidu Baike: http://baike.baidu.com/view/1017664.htm CSDN Community: http://blog.csdn.net/polly_yang/article/details/9716591 Baidu Wenku: http://wenku.baidu.com/view/f2b16276581b6bd97f19eade.html "Research on Application of Markov Random Fields in Image Segmentation Methods" http://www.doc88.com/p-0476869866231.html Markov process Hidden Markov Process Compared with Markov, Hidden Markov Model is a double random process, which is not only a random event between state transitions, but also a random process between state and output. Domain System Hierarchical Domain Systems and Subgroups Popular Interpretation of Markov Random Fields

News Management System Design and Implementation

https://qaofficial.com/post/2019/05/15/70421-news-management-system-design-and-implementation.html 2019-05-15
News Management System Design and Implementation 1. Basic design idea: News management system mainly includes news addition, news deletion, news editing and news list;The news data table at least contains: ID, title, content and time. 2, code implementation: <html> <head> <title>新闻管理系统</title&

On the Solution to Unsuccessful Mounting of Files after vmware tools Installation under Linux

https://qaofficial.com/post/2019/05/15/70630-on-the-solution-to-unsuccessful-mounting-of-files-after-vmware-tools-installation-under-linux.html 2019-05-15
首先按照以往的经验,装虚拟机,然后在VMware中点击安装VMware tools,然后将文件复制到tmp文件夹,解压,执行vmware-in

Resolution that vmware tools installation cannot be started manually while simple installation is in progress

https://qaofficial.com/post/2019/05/15/70588-resolution-that-vmware-tools-installation-cannot-be-started-manually-while-simple-installation-is-in-progress.html 2019-05-15
If vmware tools is not installed, the interaction between the host computer and the client computer will be more troublesome, and sometimes the screen cannot be fully covered, which is very troublesome. This problem is solved as follows: 1, shut down the virtual machine 2, set up the virtual machine, the floppy drive and optical drive are set as physical floppy drive or physical optical drive, can automatically detect