Xu Cui

 

   



566 Stories by Xu Cui

AIR application is invisible with mx:Application

If you use mx:WindowedApplication, you won’t have this problem. If you use mx:Application, you may find your application is not visible after launching. Solution:  open your application description file (xxxx-app.xml) and change visible propert
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Increase your virtual machine disk size in VMWare

Host OS: Mac Virtual machine: Windows XP Problem: You initially set the hard disk size to 20G. Later you find you need to increase the disk size to 100G. Solution: turn off your virtual machine and set the hard disk size to 100G. You don’t need
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SVM (support vector machine) with libsvm

I am learning svm lately and tried libsvm. It’s a good package. Linear kernel example (support vectors are in circles): Nonlinear example (radial basis) 3-class example Basic procedure to use libsvm: Preprocess your data. This including normali
58 1 min read

Why should you be nice to young people

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The marshmallow test, temptation

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Sensitivity, specificity, ROC, AUC …

You can’t believe how much jargon there is in binary classification. Just remember the following diagram (from wiki). accuracy = ( TP + TN ) / (P+N), i.e. correctly classified divided by the total false discovery rate (FDR) = TP / (TP+FP), i.e.
5 1 min read

Unable to build a valid certificate chain for the signer.

How to get a cert in the first place: http://www.adobe.com/devnet/air/articles/signing_air_applications_print.html If you encounter this error when signing your AIR application, do the following: Download the Thawte Code Signing CA from www.thawte.co
1 39 sec read

Terrific AIR applications

You can get all applications from Adobe Marketplace Beautiful Design Employee Directory Elegant design. This application drives me to learn AIR. Adobe Media Player Elegant design Time 100 Desktop Nice design. Rotating globe, rotating pictures in 3D T
0 25 sec read

Balloon model of hemodynamics

Picture: The vascular bed is treated as an expandable venous compartment (a balloon). If there is a burst of flow, the volume will increase and then return to baseline. That’s where ‘balloon’ comes from. During steady state (i.e. wi
5 1 min read