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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
...率解释，你甚至可以轻松地利用新数据来更新模型（使用在线梯度下降算法）。如果你需要一个概率架构（比如简单地调节分类阈值，指明不确定性，或者是要得得置信区间），或者你以后想将更多的训练数据快速整合到模型中...
腾讯Tencent开源框架介绍（持续更新） - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...点包括：透明分库分表、高可用的MySQL集群服务，透明及在线的扩容及缩容；使得开发者可以仅专注于业务逻辑的开发及运营，无需编写数据分片逻辑，在海量用户并发情况下，也无须关心DB存储层的负载压力。
https://github.com/Te...
Where is my .vimrc file?
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@Idigas I was typing :echo(xxx) on my command window but I realized now you meant to type this into the vim editor. However, even though :e xxx works, the :echo(xxx) doesn't. It says E121 Undefined Variable: xxx E15: Invalid Expression : ($xxx)
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Adding iOS UITableView HeaderView (not section header)
... // ...
UIView *headerView = [[UIView alloc] initWithFrame:CGRectMake(XXX, YYY, XXX, YYY)];
UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(XXX, YYY, XXX, YYY)];
[headerView addSubview:imageView];
UILabel *labelView = [[UILabel alloc] initWithFrame:CGRectMa...
StringIO in Python3
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import numpy as np
from StringIO import StringIO
data = "1, abc , 2\n 3, xxx, 4"
print type(data)
"""
<type 'str'>
"""
print '\n', np.genfromtxt(StringIO(data), delimiter=",", dtype="|S3", autostrip=True)
"""
[['1' 'abc' '2']
['3' 'xxx' '4']]
"""
print '\n', type(data)
"""
<type 'str'...
How to format time since xxx e.g. “4 minutes ago” similar to Stack Exchange sites
The question is how to format a JavaScript Date as a string stating the time elapsed similar to the way you see times displayed on Stack Overflow.
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20个命令行工具监控 Linux 系统性能 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...网络上的进程、NFS、内核等等。这个工具有两个模式：即在线模式和捕捉模式。在线模式适用于实时监控，捕捉模式用于存储输出为 CSV 格式后的处理。
20. Collectl — 一体化性能检测工具
Collectl 是另一个功能强大的基于命令...
WheelView 拓展：滚轮选择框扩展，滚轮日历选择框和旋转日历扩展 · App In...
... no-repeat; } 文档反馈 切换 目录 在线 客服 扫码添加客服咨询 我要 分享 扫码分享到朋友圈 顶部 var qrcode = new QRCode("qrcode", { ...
Is it pythonic to import inside functions?
...t a the code of a function you might ask yourself: "What is function/class xxx?" (xxx is used inside the function). And you have to look at the very top of the file to see where xxx comes from. This is more of an issue when using from m import xxx. Seeing m.xxx tells you more - at least if there is ...
ImageConvertor 扩展：免费图像转换器，支持JPG/PNG/WEBP格式转换和图像处...
... no-repeat; } 文档反馈 切换 目录 在线 客服 扫码添加客服咨询 我要 分享 扫码分享到朋友圈 顶部 var qrcode = new QRCode("qrcode", { ...