create Observable分为cold以及hot两种,cold主要是静态的,每次subscribe都是从头开始互不干扰,而hot的在同一时刻获得的值是一致的 cold Observable 使用create创建的Observable都是属于cold的Observable @Test public void coldObs() throws InterruptedException { Observable obs=Observable.create(sub->{ //在新线程上emit对…

OpenStack nova compute supports two flavors of Virtual Machine (VM) migration: Cold migration -- migration of a VM which requires the VM to be powered off during the migrate operation during which time the VM is inaccessible. Hot or live migration --…

What does 'a cold welcome' refer to? On wednesday evening,we went to the town hall. It was the last day of the year and a large crowd of people had gathered under the town hall clock. It would strike twelve in twenty minutes' time. Fifteen minutes pa…

Benefits of Cold Showers: 7 Reasons Why Taking Cool Showers Is Good For Your Health Most of us have been caught in that skin-cringing, and often dreaded moment of being the last one to shower. If you haven't then chances are that you've had someone w…

Cold: console.clear(); var Observable = Rx.Observable; var clock = Observable.interval(1000).take(10).map((i) => `${i}!`); clock.subscribe((x) => { console.log(` a ${x}`); }); setTimeout(function(){ clock.subscribe((x) => { console.log(` b ${x}`)…

[F] It Is Cold Dr. Ziad Najem is known as the godfather of  the  ACPC. When the regional contest was held in  Alexandria, Egypt, the weather was very cold. What surprised Dr. Ziad was that in the contest hall  the fans were turned on! Dr. Ziad immedi…

UVA 1524 - Hot or Cold? 题目链接 题意:给一个一元n次方程,带入x表示时间,f(x)表示温度,如今要求[s, e]的平均温度 思路:平均温度就是 总温度/ (e - s),画出曲线,能够发现温度总和为[s,e]上区间与x轴围成的面积,那么利用f(x)的原函数就能求面积了 代码: #include <cstdio> #include <cstring> #include <cmath> const int N = 105; int n; doubl…

新概念英语(1-61)A bad cold What is good news for Jimmy? A:Where's Jimmy? B:He's in bed. A:What's the matter with him? B:He feels ill. A:He looks ill. B:We must call the doctor. A:Yes, we must. B:Can you remember the doctor's telephone number? A:Yes, it's…

所谓冷热是针对处理器cache来说的,冷就是页不大可能在cache中,热就是有很大几率在cache中. cold page和hot page的概念可以参考LWN的一片文章http://lwn.net/Articles/14768/ 2.5.45内核,Martin Bligh和Andrew Morton以及其他人提交了一个内核分配器patch,引入了hot-n-cold pages的概念,这个概念本身是和现在处理器架构息息相关的. 以往我们认为系统内存是存储数据最快的地方.事实上并不是这样,最快的…

In this lesson you will learn to talk about the weather. 本节课将学习到关于天气 课上内容(Lesson) 词汇(Key Word ) # 关于表述天气的词 snowing v. 下雪(snow的ing形式) snowy  adj. 下雪的,多雪的:被雪覆盖的:洁白无瑕的 sunny   adj. 阳光充足的,和煦的:快活的:性情开朗的 windy adj. 多风的,有风的:腹胀的:吹牛的 hot  adj. 热的:辣的:热情的:激动的:紧…

ipmitool -I lanplus -H 10.1.81.90 -U admin -P admin mc reset cold…

<Learning to warm up cold Item Embeddings for Cold-start Recommendation with Meta Scaling and Shifting Networks>论文阅读 (i)问题背景: 工业界的推荐系统/广告系统现在都会用embedding技术生成物品/用户的向量.通俗点讲就是build一个向量嵌入层,把带有原始特征的输入向量转换成一个低维度的dense向量表示.推荐系统的模型一般有向量嵌入层和深度模型层两部分组成,向量嵌入层的…

ReactiveCocoa支持两种订阅方式,一种是冷订阅,一种是热订阅. 热订阅的特点: 1.不管有没有消息订阅着,发送者总会把消息发出去. 2.不管订阅者是什么时候订阅的,发送者总是会把相同的消息发给所有订阅者 冷订阅的特点: 跟热订阅的相反.冷订阅只会给订阅者发送一次消息,冷订阅使用的流(stream)跟热订阅使用的不一样. 热订阅:主动触发.      冷订阅:被动触发 RACSubject:ken能包含很多个subscriber, 一个订阅中只有一个subscribe 热订阅:积极型的,…

Text On Wednesday evening, we went to the Town Hall. It was the last day of the year and a large crowed of people had gathered under the Town Hall clock. It would strike twelve in twenty minutes' time. Fifteen minutes passed and then, at five to twel…

expression: a large crowd of 一大群 in twenty minutes’time 20分钟之后 一些时间使用的介词 in two year‘s time on Saturday in the week at the moment on Novermber 7th in 1979 in December at night in the morning until tomorrow The people were under the Town Hall clock. w…

"I used to think I was this made man," says entrepreneur Glenn Kelman. "That's what they tell you after you take a company public." In 1996 Mr. Kelman co-founded Plumtree, a business-software firm that went public in 2002. After that,…

题意: 给出一个序列,有两种操作: \(>\;x\) 将大于\(x\)的数全都取负 \(<\;x\) 将小于\(x\)的数全都取负 最后输出序列中的所有数最后的状态 思路: 我们先考虑对于一个数来说,它最后的状态只取决于它初始的时候是哪个数,而跟它所处的位置无关. 我们注意到序列中的数的范围是\([-10^{5}, 10^5]\),那么我们只需要处理出每个数在经过\(q\)次操作后的状态是什么,最后查表就好了. 我们定义一个状态\(1\)和\(-1\),分别表示一个数的当前状态是取负了还是没有…

Convert BSpline Curve to Arc Spline in OpenCASCADE eryar@163.com Abstract. The paper based on OpenCASCADE algorithms to approximate the NURBS curve to arc spline. The method is most useful in numerical control to drive the cutter along straight line…

初识马尔可夫和马尔可夫链 作者:白宁超 2016年7月10日20:34:20 摘要:最早接触马尔可夫模型的定义源于吴军先生<数学之美>一书,起初觉得深奥难懂且无什么用场.直到学习自然语言处理时,才真正使用到隐马尔可夫模型,并体会到此模型的妙用之处.马尔可夫模型在处理序列分类时具体强大的功能,诸如解决:词类标注.语音识别.句子切分.字素音位转换.局部句法剖析.语块分析.命名实体识别.信息抽取等.另外广泛应用于自然科学.工程技术.生物科技.公用事业.信道编码等多个领域.本文写作思路如下:第一篇对马…

本文来自于腾讯bugly开发者社区,非经作者同意,请勿转载,原文地址:http://bugly.qq.com/bbs/forum.php?mod=viewthread&tid=1264&extra=page%3D1 继插件化后,热补丁技术在2015年开始爆发,目前已经是非常热门的Android开发技术.其中比较著名的有淘宝的Dexposed.支付宝的AndFix以及QZone的超级热补丁方案.微信对热补丁技术的研究并不算早,大约开始于2015年6月.经过研究与尝试现有的各个方案,我们发现它…

Text Fishing is my favourite sport. I often fish for hours without catching anything. But this does not worry me. Some fisherman are unlucky. Instead of catching fish, they catch old boots and rubbish. I am even less lucky. I never catch anything - n…

Text I had an amusing experience last year. After I had left a small village in the south of France. I drove on to the next town. On the way, a young man waved to me. I stopped and he asked me for a lift. As soon as he got into the car, I said good m…

HTML指的是超文本标记语言 (Hyper Text Markup Language), HTML不是一种编程语言,而是一种标记语言 (markup language) ,HTML使用标记标签来描述网页. HTML 文档是由 HTML 元素定义的.HTML 元素指的是从开始标签(start tag)到结束标签(end tag)的所有代码. 注释:开始标签常被称为开放标签(opening tag),结束标签常称为闭合标签(closing tag).空元素在开始标签中进行关闭(以开始标签的结束而结束…

前面的话 从某种意义上讲,不是描述性文本的任何内容都可以认为是列表.人口普查.太阳系.餐馆菜单等都可以表示为一个列表或列表的列表.列表分为无序列表.有序列表和定义列表三种 无序列表 无序列表(unorder list)缩写为ul,即无数值排序项的集合,且它们在列表中的顺序是没有意义的.通常情况下,无序列表项的头部可以是几种形式,如一个点,一个圆形或方形.头部的风格并不是在页面的HTML描述定义,但在其相关的CSS可以用list-style-type属性 [默认样式] //IE7-浏览器margi…

原文地址:https://www.infoq.com/articles/rxjava-by-example Key takeaways Reactive programming is a specification for dealing with asynchronous streams of data Reactive provides tools for transforming and combining streams and for managing flow-control Mar…

原文地址:https://www.infoq.com/articles/reactor-by-example Key takeaways Reactor is a reactive streams library targeting Java 8 and providing an Rx-conforming API It uses the same approach and philosophy as RxJava despite some API differences It is a 4th…

向前算法解决隐马尔可夫模型似然度问题 作者:白宁超 2016年7月11日22:54:57 摘要:最早接触马尔可夫模型的定义源于吴军先生<数学之美>一书,起初觉得深奥难懂且无什么用场.直到学习自然语言处理时,才真正使用到隐马尔可夫模型,并体会到此模型的妙用之处.马尔可夫模型在处理序列分类时具体强大的功能,诸如解决:词类标注.语音识别.句子切分.字素音位转换.局部句法剖析.语块分析.命名实体识别.信息抽取等.另外广泛应用于自然科学.工程技术.生物科技.公用事业.信道编码等多个领域.本文写作思路如下…

之前的Code First系列文章已经演示了如何使用Fluent API和Data Annotation的方式配置实体的属性,比如配置Destination类的Name属性长度不大于50等.本文介绍EF里更强大的Validation API达到实体属性验证的效果.主要是通过ValidationAttributes属性和IValidatebleObject接口来进行的验证. 一.实体属性的简单验证(GetValidationResult方法) 修改person类LastName属性不超过10个字符…

温习<高性能MySQL>的复制篇. 1 复制概述 Mysql内建的复制功能是构建大型,高性能应用程序的基础.将Mysql的数据分布到多个系统上去,这种分布的机制,是通过将Mysql的某一台主机的数据复制到其它主机(slaves)上,并重新执行一遍来实现的.复制过程中一个服务器充当主服务器,而一个或多个其它服务器充当从服务器.主服务器将更新写入二进制日志文件,并维护文件的一个索引以跟踪日志循环.这些日志可以记录发送到从服务器的更新.当一个从服务器连接主服务器时,它通知主服务器从服务器在日志中读取…

1.如果你继续发烧,我就去请医生过来If your fever continues, I'll send for the doctor.2.在这么大的停车场里,我是永远都找不到我的车的I'll never find my car in this huge parking lot.3.这些图表表明我们明年又会是成功的一年These figures point to our having a very successful year next year.4.这个红色电话亭现在很少被用到The red…