conceptual

失去的象牙塔:停学潮之下大学生对新冠病毒是何反应?

ぐ巨炮叔叔 提交于 2020-08-07 21:04:42
疫情之下,学校纷纷停课。在学业压力下,大学生对于新冠病毒的反应与普通人有没有区别呢?美国罗切斯特大学的计算机科学家对此进行了研究。 前不久,美国罗切斯特大学的计算机科学家根据推特舆情分析了 新型冠状病毒大流行带来的社会影响 ,探究了使用「中国病毒」、「武汉肺炎」这类歧视性词汇和使用「新冠病毒」这类中立词汇的两类人群在年龄、性别、政治倾向、地理位置以及更深层的心理层面上的差别。疫情之下,学校纷纷停课,学术会议也纷纷转为线上举行。在此情况下,那些停课的大学生对于新冠病毒有何反应?与普通人的反应有何区别?该团队对此展开了调查。 论文链接: https:// arxiv.org/abs/2004.0996 8 截至 4 月 13 日,COVID-19 已经在全球范围内确诊 1,812,734 例,死亡 113,675 例。病毒不仅对老年人或者有健康问题的人群造成巨大影响,年轻健康的人群也受到了不同程度的波及。随着世界范围的强制社交隔离,那些将大部分时间花在工作场所或者教育机构的人们极易遭受此类设施关闭带来的负面作用,超过 192 个国家的 17 亿学生受到影响。 作为拥有最多确诊人数的美国(确诊病例达 579,005 例,死亡病例达 22,252 例),总统 Donald Trump 采取了社交隔离措施,这也是自 1918 年大流感以来第一次全国范围内的强制社交隔离

Extend section in Mach-O file

吃可爱长大的小学妹 提交于 2020-06-16 20:51:15
问题 I am trying to extract libraries from the Dyld_shared_cache, and need to fix in external references. For example, the pointers in the __DATA.__objc_selrefs section usually point to data outside the mach-o file, to fix that I would have to copy the corresponding c-string from the dyld and append it to the __TEXT.__objc_methname section. Though from my understanding of the Mach-O file format, this extension of the __TEXT.__objc_methname would shift all the sections after it and would force me

MySQL Structured Query Language

本小妞迷上赌 提交于 2020-04-23 03:31:26
MySQL Structured Query Language SQL简介 SQL (Structured Query Language) 是具有数据操 纵和数据定义等多种功能的数据库语言,这种语言具有交互性特点,能为用户提供极大的便利,数据库管理系统应充分利用SQL语言提高计算机应用系统的工作质量与效率。SQL语言不仅能独立应用于终端,还可以作为子语言为其他程序设计提供有效助力,该程序应用中,SQL可与其他程序语言一起优化程序功能,进而为用户提供更多更全面的信息。 数据库操作 1.数据定义:DDL语言,定义数据库的逻辑结构,包括定义数据库、基本表、视图和索引4部分。 数据定义语言(data definition language,DDL)属于DBMS语言的一种,用于明确定义概念纲要(conceptual schemas)及内部纲要(internal schemas),DBMS内的DDL编译器(complier)能够处理DDL,识别纲要建构物(schema constructs)的描述(description)并加以存入DBMS目录中的纲要描述(schema description)。 为SQL语言集中负责数据结构定义与数据库对象定义的语言,由CREATE、ALTER与DROP三个语法所组成,最早是由Codasyl(Conference on Data Systems

资源:Java

偶尔善良 提交于 2020-04-16 07:15:27
【推荐阅读】微服务还能火多久?>>> ylbtech-资源:Java 1. 返回顶部 2. 返回顶部 · https://docs.oracle.com/javase/8/docs/ · Oracle has two products that implement Java Platform Standard Edition (Java SE) 8: Java SE Development Kit (JDK) 8 and Java SE Runtime Environment (JRE) 8. JDK 8 is a superset of JRE 8, and contains everything that is in JRE 8, plus tools such as the compilers and debuggers necessary for developing applets and applications. JRE 8 provides the libraries, the Java Virtual Machine (JVM), and other components to run applets and applications written in the Java programming language. Note that the JRE

CVPR 2020 | 京东AI研究院对视觉与语言的思考:从自洽、交互到共生

六眼飞鱼酱① 提交于 2020-04-13 20:10:41
【今日推荐】:为什么一到面试就懵逼!>>> 纵观视觉与语言在这六年间的飞速发展史,它就仿佛是两种不同文化(计算机视觉与自然语言处理)的碰撞与交融。这里每一种文化最初的进化都是 自洽 的,即独立地演化形成一套完备的视觉理解或语言建模体系;演化至今,我们当前所迎来的则是两种文化间的 交互 ,自此视觉理解和语言建模不再是简单串联的两个模块,而是通过互相的信息传递成为共同促进的一个整体;对于视觉与语言的未来,则一定是聚焦于两者更为本质和紧密的 共生 ,它所渴望的,将是挣脱开数据标注的桎梏,在海量的弱监督甚至于无监督数据上找寻两者间最为本质的联系,并以之为起源,如「道生一,一生二,二生三,三生万物」一般,赋予模型在各种视觉与语言任务上的生命力。 This monkey on the back of horse Disney made the best cake of all time using projection Tiny squid flopping around on the rocky bottom of fish tank 注:为了更好地便于读者理解和推动视觉语言领域的发展,将这几年我们关于视觉与语言的代表性工作(LSTM-A [1],GCN-LSTM [2],HIP [3],X-LAN [4])进行开源,这些对应的源码都在 GitHub 上陆续公开( https://

Python link two separate GUIs on physically different computers

只愿长相守 提交于 2020-01-17 18:13:09
问题 Suppose I have two separate files, e.g. customerorder.py and employeeside.py customerorder.py gathers the customer order and employeeside.py displays the queue of orders. Conceptually, these would run on two separate screens inside a coffee shop. However, when i import employeeside.py from customerorder.py, it displays the employeeside.py GUI instead. I need to import the file as I am calling a function in employeeside.py when from the customerorder.py file. Is there a way to run the specific

Why to run code in method called by XAML Window.Loaded?

安稳与你 提交于 2020-01-12 18:51:10
问题 I saw a code example that creates a method Window_Loaded() which is called by XAML's "Window Loaded" event: <Window x:Class="TestModuleLoader.Window1" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="Window1" Height="300" Width="300" Loaded="Window_Loaded"> <Grid> ... </Grid> </Window> But in the code behind, the code worked in both the constructor and the Window_Loaded() method: using System.Windows; namespace

async/await thread transition curiosity

只愿长相守 提交于 2020-01-02 12:24:51
问题 I have the following simple console application: class Program { private static int times = 0; static void Main(string[] args) { Console.WriteLine("Start {0}", Thread.CurrentThread.ManagedThreadId); var task = DoSomething(); task.Wait(); Console.WriteLine("End {0}", Thread.CurrentThread.ManagedThreadId); Console.ReadLine(); } static async Task<bool> DoSomething() { times++; if (times >= 3) { return true; } Console.WriteLine("DoSomething-1 sleeping {0}", Thread.CurrentThread.ManagedThreadId);

Why is TaskScheduler.Current the default TaskScheduler?

隐身守侯 提交于 2019-12-28 02:26:29
问题 The Task Parallel Library is great and I've used it a lot in the past months. However, there's something really bothering me: the fact that TaskScheduler.Current is the default task scheduler, not TaskScheduler.Default. This is absolutely not obvious at first glance in the documentation nor samples. Current can lead to subtle bugs since its behavior is changing depending on whether you're inside another task. Which can't be determined easily. Suppose I am writting a library of asynchronous

Conceptual Modelling - Is my drawing correct ?

删除回忆录丶 提交于 2019-12-25 12:25:41
问题 I have a exam tomorrow and we have gotten a sample exam, but since there are no answers to this sample exam, Id thought Id ask here. So here we go, this is one of the questions Im not sure if ive done correctly: Q: Draw a conceptual model describing the following domain. In the domain there are monkeys and bananas. A Monkey can eat bananas BUT two monkeys can not eat the same banana. A(which I think is correct): http://gyazo.com/722ee8618bfee76ed9f616d45d800819 Now, the reason why I think my