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如何选择机器学习算法 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...算法？ 当然，如果你真心在乎准确率，最好的途径就是测试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen
How do you know what machine learning algorithm to ch...
如何高效的学习掌握新技术 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...于和服务器通信的结果数据，还要和界面整合。
发布测试完善
对于做好的作品，发布给自己和其他人进行测试，然后继续完善，在这个过程中去进一步学习掌握技术细节。
当明确了实践的项目和各个阶段的目标，后面就...
How to make div background color transparent in CSS
... answer is not complete enough to provide that. Using rgba with a fallback png would be much better.
– René
Aug 4 '12 at 9:19
...
浅谈Heatmap：网页热点图生成原理 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...e(1000, 1000, new ImagickPixel('white'));
$heatmap_image->setImageFormat('png');
$plot_image = new Imagick('plot.png');
$iterator = $plot_image->getPixelIterator();
foreach($iterator as $row) {
foreach ($row as $pixel) {
$colors = $pixel->getColor();
foreach (array('r'...
如何选择机器学习算法 - 大数据 & AI - 清泛网移动版 - 专注C/C++及内核技术
...算法？ 当然，如果你真心在乎准确率，最好的途径就是测试一大堆各式各样的算法（同时确保在每个算法上也测试不同的参数），最后选择在交叉验证中表现最好的。jmp0xf 译自Edwin Chen
How do you know what machine learning algorithm to ch...
Best Practice to Organize Javascript Library & CSS Folder Structure [closed]
...re portable. appcropolis-project resources css blue-theme background.png images background.png blue-theme.css my-index.css js my-index.js my-contact-info.js images products computer.jpg cellphone.png printer.jpg my-company-logo-small.png my-company-logo-large.png data some-data.json...
Preloading CSS Images
... height:0; overflow:hidden; z-index:-1; // hide images
content:url(img1.png) url(img2.png) url(img3.gif) url(img4.jpg); // load images
}
Demo
it's better to use a sprite image to reduce http requests...(if there are many relatively small sized images) and make sure the images are hosted where...
What is a simple/minimal browserconfig.xml for a web site
...on>
<tile>
<square70x70logo src="/mstile-70x70.png"/>
<square150x150logo src="/mstile-150x150.png"/>
<wide310x150logo src="/mstile-310x150.png"/>
<square310x310logo src="/mstile-310x310.png"/>
<TileColor>#8bc53f&l...
Disable cache for some images
...each request for the dynamic image.
So, for example -
<img src="image.png" />
Would become
<img src="image.png?dummy=8484744" />
Or
<img src="image.png?dummy=371662" />
From the point of view of the web-server the same file is accessed, but from the point of view of the b...
App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
...明”等属性设为“健身宝”，并在手机上运行AI伴侣进行测试连接。
注意：该程序需要用到手机内置的计步器传感器（或加速度传感器）和GPS传感器，请确保您的手机具备此功能（一般新手机都具有这几个功能，比较旧的...