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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
...NUM = 2;
final static int RECOMMENDER_NUM = 3;
public static void main(String[] args) throws IOException, TasteException {
String file = "datafile/item.csv";
DataModel model = new FileDataModel(new File(file));
UserSimilarity user = new EuclideanDistanceSimilar...
warning RC2182: duplicate dialog control ID 1002 - C/C++ - 清泛网 - 专注C/C++及内核技术
warning RC2182: duplicate dialog control ID 1002原因：报错行的控件ID值（这里是1002），与其他的控件ID值一样，发生冲突了。解决：resource.h中将值一样的控件ID改为不同的值。原因：报错行的控件ID值（这里是1002），与其他的控件ID值一...
ble 蓝牙透传代码怎么写？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...用我们这个模块这个地址可以吗？
上图中是控制服务id：SERVICEF000_UUUID = UUID.fromString("0000f000-0000-1000-8000-00805f9b34fb");以及2个控制端口的特征id。
可以做到透传，不过要换透传 id，这个 id 是 io 控制口
晚一些我给你一...
How to generate the “create table” sql statement for an existing table in postgreSQL
... a.attname as column_name,
pg_catalog.format_type(a.atttypid, a.atttypmod) as column_type,
CASE WHEN
(SELECT substring(pg_catalog.pg_get_expr(d.adbin, d.adrelid) for 128)
FROM pg_catalog.pg_attrdef d
WHERE d.adrelid = a....
Explain Python entry points?
...en called from the command line, parse the arguments that the user has provided, and ... well, do whatever the command is designed to do.
Install the docutils package for a great example of entry-point use: it will install something like a half-dozen useful commands for converting Python documentat...
How to hide Bootstrap modal with javascript?
...e browser window, use the browser's console to try
$('#myModal').modal('hide');
If it works (and the modal closes) then you know that your close Javascript is not being sent from the server to the browser correctly.
If it doesn't work then you need to investigate further on the client what is h...
Detect permission of camera in iOS
I am developing a very simple video app. I use the official control: UIImagePickerController.
6 Answers
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Find the PID of a process that uses a port on Windows
...e:
Proto Local Address Foreign Address State PID
TCP 0.0.0.0:37 0.0.0.0:0 LISTENING 1111
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What is a “slug” in Django?
...
A "slug" is a way of generating a valid URL, generally using data already obtained. For instance, a slug uses the title of an article to generate a URL. I advise to generate the slug by means of a function, given the title (or another piece of data), rather than...
How to make CSS width to fill parent?
...l have different rendering rules.
So for:
table#bar you need to set the width to 100% otherwise it will be only be as wide as it determines it needs to be. However, if the table rows total width is greater than the width of bar it will expand to its needed width. IF i recall you can counteract thi...