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从源代码剖析Mahout推荐引擎 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...w FileDataModel(new File(file));
UserSimilarity user = new EuclideanDistanceSimilarity(model);
NearestNUserNeighborhood neighbor = new NearestNUserNeighborhood(NEIGHBORHOOD_NUM, user, model);
Recommender r = new GenericUserBasedRecommender(model, neighbor, user);
...
Concatenate a vector of strings/character
...:
stri_paste(letters, collapse='')
## [1] "abcdefghijklmnopqrstuvwxyz"
And some benchmarks:
require(microbenchmark)
test <- stri_rand_lipsum(100)
microbenchmark(stri_paste(test, collapse=''), paste(test,collapse=''), do.call(paste, c(as.list(test), sep="")))
Unit: microseconds
...
Android - implementing startForeground for a service?
...
@Snicolas: Thank you for pointing out a flaw in Android. I will work on getting this fixed.
– CommonsWare
Oct 12 '12 at 15:19
|...
How to set background color of HTML element using css properties in JavaScript
...nd your code is more maintainable if you keep all your styles, etc. in CSS and just set / unset class names in JavaScript.
Your CSS would obviously be something like:
.highlight {
background:#ff00aa;
}
Then in JavaScript:
element.className = element.className === 'highlight' ? '' : 'highlig...
Uri to default sound notification?
...
Settings comes from import android.provider.Settings;
– Chris Knight
Oct 10 '13 at 22:16
add a comment
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使用CSplitterWnd实现拆分窗口（多视图显示） - C/C++ - 清泛网 - 专注C/C++及内核技术
...s, CCreateContext* pContext)
{
// TODO: Add your specialized code here and/or call the base class
if(!m_wndSplitter.CreateStatic(this,1,2))
{
return FALSE;
}
CRect rect;
GetClientRect(&rect);
if(!m_wndSplitter.CreateView(0,0,RUNTIME_CLASS(CTest),CSize(rect.Width()/4,rect.Height(...
LEGO EV3 机器人按键控制 · App Inventor 2 中文网
...规格
开发平台：MIT App Inventor
目标设备：Android智能手机
通信协议：Bluetooth Classic
硬件要求：LEGO Mindstorms EV3
最小系统版本：Android 4.4+（蓝牙支持）
扩展建议
功能增强
传...
TaifunWiFi 拓展：WiFi Manager WiFi管理器扩展 · App Inventor 2 中文网
... 4. 企业网络管理
技术说明
权限要求
Android版本兼容性
网络扫描限制
网络建议API（Android >= 10）
最佳实践
故障排除
常见问题
开发信息
« 返回扩展首页
TaifunWiFi 拓...
实战做项目如何选择开源许可协议（一）-了解协议 - 开源 & Github - 清泛网...
...可协议。
参考：
http://www.aqee.net/a-short-guide-to-open-source-and-similar-licenses/
http://www.iteye.com/news/27616
原创文章，转载请注明： 转载自LANCEYAN.COM
实战 项目 许可协议
MVC演化史 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...类为Supervising Controller和Passive View。
Supervising Controller and Passive View
图解：MVP的两种分类：Supervising Controller和Passive View
二者的区别在于Model和View是否有联系，在Supervising Controller的实现中，View可以查询Model，Model状态发生变化...