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Peak signal detection in realtime timeseries data
...do not corrupt the threshold. Future signals are therefore identified with approximately the same accuracy, regardless of the amount of previous signals. The algorithm takes 3 inputs: lag = the lag of the moving window, threshold = the z-score at which the algorithm signals and influence = the influ...
互联网健身的火爆：技术驱动是内因 资本只是点缀 - 资讯 - 清泛网 - 专注C/...
...9月17日，动吧体育获得3000万A轮融资；就在同一天，足球APP懂球帝获得B轮1000万美元融资；11月8日，健康猫获得A轮3500万融资；12月1日，柠檬健身获得A轮数千万融资……
同所有被资本关注过的行业一样，互联网健身在出现的那一...
What is bootstrapping?
I keep seeing "bootstrapping" mentioned in discussions of application development. It seems both widespread and important, but I've yet to come across even a poor explanation of what bootstrapping actually is; rather, it seems as though everyone is just supposed to know what it means. I don't, tho...
What is the difference between sigaction and signal?
I was about to add an extra signal handler to an app we have here and I noticed that the author had used sigaction() to set up the other signal handlers. I was going to use signal() . To follow convention I should use sigaction() but if I was writing from scratch, which should I choose?
...
Why does GCC generate 15-20% faster code if I optimize for size instead of speed?
...essor, but decrease performance on your particular processor (and the same applies to -Os). If you try the same example on different processors, you will find that on some of them benefit from -O2 while other are more favorable to -Os optimizations.
Here are the results for time ./test 0 0 on sever...
Cannot insert explicit value for identity column in table 'table' when IDENTITY_INSERT is set to OFF
...is:
SET IDENTITY_INSERT student ON
If you getting this error on your web application or you using entity framework then first run this query on SQL server and Update your entity model (.edmx file) and build your project and this error will be resolved
...
Good Free Alternative To MS Access [closed]
Consider the need to develop a lightweight desktop DB application on the Microsoft platforms.
28 Answers
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窝窝与众美联合并 新公司命名“众美窝窝” - 资讯 - 清泛网 - 专注C/C++及内核技术
...”的操作后台，使商家可以一站式创建并管理自有品牌的APP、窝窝专卖店，以及第三方互联网渠道上的店铺(微信微店，支付宝服务窗，百度直达号)，并且还支持商家手机端后台操作。
这些措施已初见成效。窝窝2014年Q4财报显...
How do I copy an object in Java?
...can use Java Object Serialization to make a deep copy. Unfortunately, this approach has some problems too(detailed examples).
Possible Problems:
clone is tricky to implement correctly.
It's better to use Defensive copying, copy constructors(as @egaga reply) or static factory methods.
If you hav...
prevent property from being serialized in web API
...
ASP.NET Web API uses Json.Net as default formatter, so if your application just only uses JSON as data format, you can use [JsonIgnore] to ignore property for serialization:
public class Foo
{
public int Id { get; set; }
public string Name { get; set; }
[JsonIgnore]
pub...