文章整合

【推荐系统基础】正负样本采样和构造

文章目录一、回顾word2vec中的负采样 word2vec 2 1.1 滑动窗口 11 11 1.2 目标函数 12 14 1.3 预测函数 13 24 二、word2vec中的负采样实现 word2vec 28 三、推荐系统中召回相关基础 170 3.1 召回中的三种训练方式 31 176 ...
2022-07-07 21:53【山顶夕景】
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limit 与offset的用法（转载）

limit 与offset的用法在mysql中一般使用limit来实现分页 1、LIMIT后面跟一个参数，表示要提取的数量。如： select/ from test LIMIT 3 指提取前三条数据，类似sqlServer的top语法。 2、LIMIT后面跟两个参数时，第一个参数是指第几行，...
2022-07-07 21:54【流楚丶格念】
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如何衡量产品是否“刚需、高频、痛点”

如何衡量产品是否“刚需、高频、痛点” https://img blog.csdnimg.cn/e27cfb31638d431981db13017760e1b3.webp 小海按：如果说创业者需要有产品经理的思维，那对于产品的“刚需、高频、痛点”三个核心要求，更需要完善的评估体系来帮助产品进行功能优...
2022-07-07 21:54【流楚丶格念】
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第四期SFO销毁，Starfish OS如何对SFO价值赋能？

7月5日晚（utc时间），Starfish OS 迎来了对其生态通证的第四次销毁，本次销毁量总计 11,157,295.19枚 SFO。通过市场供求关系理论实践得知，销毁是直接改变市场供应量，且直线提升通证价值的一大手段，当SFO的数量缩减，即，供应减少而市场需求不变或增多的情况下，sfo的价值增长...
2022-07-07 21:54【InfoQ】
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LinkedBlockingQueue源码分析-新增和删除

LinkedBlockingQueue源码分析新增和删除新增 put方法，把e新增到队列的尾部，如果有可以新增的空间的话，直接新增成功，否则当前线程陷入等待，源码： public void put E e throws InterruptedException { if e == nul...
2022-07-07 21:54【InfoQ】
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Les mots ont été écrits, la fonction est vraiment puissante!

Bonjour tout le monde,Je suis le chef de la pile.. Tout le monde sait, Programmeur cette profession doit être constamment résumée , Ce qui m'a le plus...
2022-07-07 23:50【Pile technologique Java】
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The function is really powerful!

Hello everyone , I'm the stack leader . Everybody knows , The profession of programmer needs to be summarized constantly , One of the things that im...
2022-07-07 23:51【Java technology stack】
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Kubectl's handy command line tool: Oh my Zsh tips and tricks

Zsh Tips and tricks stay unix/linux In the operating system environment , We will often discuss shell、 Terminal and command line interface .Bas...
2022-07-07 23:51【Qiyan】
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Automated testing: robot framework is a practical skill that 90% of people want to know

https://img blog.csdnimg.cn/611bd93050ba491ab09f0df16f45960d.png 1. background Today's sharing is about Robot Framework During the use of the fr...
2022-07-07 23:51【Little brother said test】
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Seven years' experience of a test engineer -- to you who walk alone all the way (don't give up)

Preface Unknowingly, in the software testing industry , I've got to get up and down 7 years . Along the way, I also left many stories that I can't...
2022-07-07 23:51【Little brother said test】
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The result of innovation in professional courses such as robotics (Automation)

https://img blog.csdnimg.cn/98b9c5bde5554d0f854425a068a8f448.png Fast forward to conclusion ： The long-term existence of all industries must be s...
2022-07-07 23:51【zhangrelay】
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Preliminary test of optical flow sensor: gl9306

https://img blog.csdnimg.cn/2834d978ad1243bf9505a1b35b176a77.png pic center GL9306 Optical flow sensor Objective record Contents Background int...
2022-07-07 23:51【Zhuoqing】
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Robomaster visual tutorial (10) target prediction

RoboMaster Visual tutorial （10） Target forecast The target prediction should be RM The most difficult and important part of vision , The prediction...
2022-07-07 23:52【Raring_ Ringtail】
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Robomaster visual tutorial (11) summary

RoboMaster Visual tutorial （11） summary This series of tutorials is finally the last one , At first, there are two more articles 「 Program startup ...
2022-07-07 23:52【Raring_ Ringtail】
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QT creator add custom new file / Project Template Wizard

Qt Creator Add custom new file / Project Template Wizard Translated from ： https://doc.qt.io/qtcreator/creator project wizards.html https://doc.qt...
2022-07-07 23:52【Raring_ Ringtail】
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QT creator add JSON based Wizard

Qt Creator Add based on JSON Wizard for This article is translated from ： https://doc.qt.io/qtcreator/creator project wizards json.html https://...
2022-07-07 23:53【Raring_ Ringtail】
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QT and OpenGL: load 3D models using the open asset import library (assimp)

Qt and OpenGL： Use Open Asset Import Library（ASSIMP） load 3D Model Translated from ： https://www.ics.com/blog/qt and opengl loading 3d model open a...
2022-07-07 23:53【Raring_ Ringtail】
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QT and OpenGL: loading 3D models using the open asset import library (assimp) - Part 2

Qt and OpenGL： Use Open Asset Import Library（ASSIMP） load 3D Model The first 2 part Translated from ： https://www.ics.com/blog/qt and opengl load...
2022-07-07 23:53【Raring_ Ringtail】
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Opengl3.3 mouse picking up objects

OpenGL3.3 Pick up objects with the mouse This article is translated from ：http://www.lighthouse3d.com/tutorials/opengl selection tutorial/ stay 3D...
2022-07-07 23:53【Raring_ Ringtail】
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Using Google test in QT

I found a good book a few days ago 《The Ray Tracer Challenge》 This book is different from other books on programming or algorithms in that it does ...
2022-07-07 23:53【Raring_ Ringtail】
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