yusisc-优快云博客

原创 trivial

start a virtualbox machine from cmdcd /d "D:\Program Files\Oracle\VirtualBox"start VirtualBoxVM.exe -startvm openwrt_04exitset a static ip from cmd@echo offclscolor 0AEcho **************************************************************************

2022-01-28 16:08:45 3774

原创 conemu activates conda env while open new terminal

cmd.exe /k ""%ConEmuBaseDir%\CmdInit.cmd"" & conda activate tfgpu25

2021-08-11 14:15:08 221

原创 windows call command one by one

windows batch file call command for 200 times.call: Calls one batch program from another without stopping the parent batch program. The call command accepts labels as the target of the call.REM call command for 200 timesFOR /L %%A IN (1,1,200) DO ( ECH

2020-08-28 00:03:27 343 1

原创 jupyter notebook works in vscode

I found that vscode is able to open jupyter notebooks directly, which i had been wishing for, early this year.This feature makes it’s easy to open a jupyter notebook as open a terminal, start jupyter server and work in browser.jupyter notebook runing in

2020-08-24 00:04:34 207

原创 simple cpp pool to limit the amount of thread running currently

simple cpp pool to limit the amount of thread running currently to make the computer more responsive.short storywrapping the target function with lambda function.condition variable to block the wrapping function, limiting running thread amount.long s

2020-06-26 12:36:41 198

原创 cpp work with utf-8

I’m mainly working with cpp, recently. Sometimes, I have some Chinese characters in the input/output stream, the the encoding issue became annoy.the method to make your utf-8 coded program work in GBK scenario.add the following line to your code.#includ

2020-06-12 20:33:36 298

转载 smooth a curve in images

This is from a post in stackoverflow.com . I make a copy here so that it’s easy to access.#!/usr/bin/env python3# -*- coding: utf-8 -*-# @Time : 2019-03-09 01_17_59 Sat# @Author : yusisc (yusi...

2019-03-09 01:22:44 407

原创 how operating system locates the dll for an applicaton

when it’s implicit linking an dll (dynamic-link library) , the operating system will use the following algorithm for locating a DLL.The directory where the executable module for the current process...

2019-01-10 02:50:44 197

原创 why cross entropy loss works

cross entropy is measurement of probability distributions p and q over the same underlying random variable.H(p,q)=−∑xi∈Xp(xi)logq(xi)H(p, q) = -\sum_{x_i \in X} p(x_i)log^{q(x_i)}H(p,q)=−xi∈X∑p(xi...

2019-01-06 14:11:51 236

原创 How to make TensorFlow employ multiple GPUs

The content of this essay may not be true. It’s just a short note. As far as I know, recent versions of TensorFlow do not automatically distribute work load to multiply GPUs, even the GPUs are visibl...

2019-01-02 14:38:21 257

原创 Access Windows Subsystem for Linux (WSL) by ssh

modified sshd_config# $OpenBSD: sshd_config,v 1.101 2017/03/14 07:19:07 djm Exp $# This is the sshd server system-wide configuration file. See# sshd_config(5) for more information.# This ssh...

2018-09-01 12:47:31 579

转载如何让奇异值分解(SVD)变得不“奇异”？

如何让奇异值分解(SVD)变得不“奇异”？红色石头发布于 2018-08-29 分类：机器学习阅读(144) 评论(0) 如何让奇异值分解(SVD)变得不“奇异”？-红色石头的个人博客 http://redstonewill.com/1529/ 在之前的一篇文章：通俗解释协方差与相关系数，红色石头为大家通俗化地讲解了协方差是如何定义的，以及如何直观理...

2018-08-30 14:31:33 3177 5

原创 Having trouble to eject portable device from windows?

When I trying to eject my mobile hard disk from windows, It often comes that---------------------------Problem Ejecting USB Attached SCSI (UAS) Mass Storage Device---------------------------This ...

2018-08-22 00:07:00 415

原创 how to disable github hotkeys/keyboard shortcuts

Tampermonkey, The chrome app, is able to achieve this. The script is as following.// ==UserScript==// @name Disable keyboard shortcuts at github// @description Stop websites from high...

2018-08-21 12:20:02 504

转载 reinitialize parameters in keras

# Reset/Reinitialize model weights/parameters · Issue #341 · keras-team/keras# https://github.com/keras-team/keras/issues/341session = K.get_session()for layer in model.layers: for v in layer...

2018-08-21 00:01:19 369

原创 fit a curve

scipy.interpolate.splprepimport numpy as npfrom scipy import interpolatefrom matplotlib import pyplot as pltx = np.array([23, 24, 24, 25, 25])y = np.array([13, 12, 13, 12, 13])# append the ...

2018-08-20 23:56:35 608

转载 [转] 优秀的算法工程师都是不用深度学习的

from:优秀的算法工程师都是不用深度学习的 - 优快云博客https://blog.youkuaiyun.com/B9Q8e64lO6mm/article/details/79019199 作者：王超我也来一发《优秀的算法工程师都是不用深度学习的》向神文致敬《优...

2018-08-14 23:30:52 1330

转载 AI 算法工程师必备技能知识图谱

from: AI 算法工程师必备技能知识图谱 - 优快云博客 https://blog.youkuaiyun.com/zpalyq110/article/details/77979313 不知不觉已经在AI领域混了4个多月了，感觉需要学的太多太多了，此博客用以记录成长为 AI 算法工程师的必备技能，...

2018-08-14 23:24:31 1036

原创机器学习领域的两个名词 BP神经网络 & sotfmax loss

BP神经网络我听人说过BP神经网络、一般的BP神经网络，我还听过前馈神经网络。我感觉他们说的是同一个东西，也就是那种多层全连接的神经网络。不过，不同的名字里面，“向前”是他，“向后”也是他。这个让人有点困惑。我去搜索了一下 back propagation neural network。从搜索的结果看来，在英文世界里，BP神经网络这么一个东西，至少不是一个广泛使用的概念。我的观点是：B...

2018-08-09 12:37:58 318

转载 sklearn库的学习

origin: sklearn库的学习 - 优快云博客 https://blog.youkuaiyun.com/u014248127/article/details/78885180 sklearn库的学习 &amp;lt;div class=&quot;article-info-box&quot;&amp;gt; &amp;lt;div class=&

2018-08-06 18:32:08 331

原创 The strategy to make a configuration object for your python project

dictionary easydict a class

2018-08-06 13:39:14 168

转载 tmux-cheatsheet.markdown

tmux shortcuts & cheatsheetstart new:tmuxstart new with session name:tmux new -s mynameattach:tmux a # (or at, or attach)attach to named:tmux a -t mynamelist sessions:tmu...

2018-08-06 09:22:51 247

原创 file management applications recommend

listfile management One_Commander Q-dirpreview One_Commander

2018-08-05 23:39:27 199

原创你说的是多层感知机（MLP）还是BP神经网络？

我时常听人说起或者在各种文章中看到“BP神经网络”这样一个名词。在这些地方，所为的“BP神经网络”应该是多层感知机“MLP”。他们不好奇吗？或许是习惯了吧。习惯创造语言。在google搜索“Back-Propagation Neural Networks”，似乎这个不像是一个有比较广泛应用的短语。...

2018-08-05 13:20:57 12504

原创 'binary_crossentropy' & 'categorical_crossentropy' in keras

In model.compile(*) of keras, I met binary_crossentropy &amp; categorical_crossentropy. These two kinds of loss somehow made me confused. I did some search, which help a lot on this. In fact, checkin...

2018-08-05 13:07:30 3637

原创 The Explanation: TensorFlow consumed all memory of all GPUs

When run a TensorFlow or Keras script (as script 1) on a computer with multiple GPUs, the nvidia-smi -l command is going to indicate all the memory resource of all GPUs is consumed, as: But, there ...

2018-08-05 12:42:12 238

原创 Two TensorFlow program structure template drafts

Simple one#!/usr/bin/env python3# -*- coding: UTF-8 -*-# @Time : 2018/8/3 10:47# @File : tensorflow_template.py# @Author : yusisc (yusisc@gmail.com)import numpy as npimport tensorflo...

2018-08-03 12:18:42 175

原创 nvidia errors in TensorFlow

Go to check GPU memory usage, when encountering nvidia or cuda error.I’ve been worked with tensorflow-gpu for a while. When run the codes, nvidia reports kinds of errors without clear instructio...

2018-08-02 17:47:45 177

转载 5 easy steps to start editing python notebooks over SSH

ref:5 easy steps to start editing python notebooks over SSHhttp://fizzylogic.nl/2017/11/06/edit-jupyter-notebooks-over-ssh/When you work with Linux machines on Amazon EC2 or Azure over SSH and wa...

2018-08-02 13:21:34 148

原创 matrix, vector and tensor operators

1. matrix multiplicationAB=CAB=CAB=C ref: Matrix multiplication - Wikipedia https://en.wikipedia.org/wiki/Matrix_multiplication2. inner product (dot product)Algebraic definition a⋅b=∑i=1na...

2018-07-26 11:51:13 391

原创 jagged accuracy curve in tensorflow

What is f-string in pythonstep = 5test_accuracy = 0.77777print(f'step {step:05d}, test accuracy {test_accuracy}\n') # f-strings# It's more simple thanprint('step {:05d}, test accuracy {}\n'.fo...

2018-04-20 12:38:44 162

原创 entropy, crosss entropy

Information EntropyInformation Entropy measures the information missing before reception, saying the level of uncertainty of a random variable XXX. Information entropy definition: H(X)=−∑i=1np(xi)...

2018-04-09 21:11:44 222

原创 cudnn runtime error

DATE: 2018-03-25cudnn runtime errorWhen I run some code with tensorflow(gpu version), I met the following error.2018-03-25 10:31:42.242669: E C:\tf_jenkins\workspace\rel-win\M\windows-gpu\PY...

2018-03-25 11:30:15 1305

转载 How to check if a journal is EI, SCI, ISI, SCIE or SSCI and get its Impact Factor

How to check if a journal is EI, SCI, ISI, SCIE or SSCI and get its Impact Factor?http://www.philippe-fournier-viger.com/links.php========Check journal indexes (EI, SCI, ISI, ...) Search for SCI journ...

2018-03-16 01:48:16 2729

转载远程访问jupyter notebook

远程访问jupyter notebook - Echo/ - 博客园http://www.cnblogs.com/yangxiaolan/p/5778305.html远程访问jupyter notebookipython notebook是一个基于浏览器的python数据分析工具，使用起来非常方便，具有极强的交互方式和富文本的展示效果。jupyter是它的升级版，它的安装也非常方便，一般Anaco...

2018-02-24 18:09:59 212

转载多无线路由器AP使用同一个SSID号无缝连接漫游

多无线路由器AP使用同一个SSID号无缝连接漫游http://www.360doc.com/content/17/0629/20/37516364_667561843.shtml多无线路由器AP使用同一个SSID号无缝连接漫游2017-06-29 脚下的路... 来源阅 229 转 1转藏到我的图书馆微信分享：

2018-02-21 15:48:50 23497

转载 Win10 App如何走代理?Win10应用代理教程_Win10技巧_太平洋电脑网PConline

Win10 App如何走代理?Win10应用代理教程_Win10技巧_太平洋电脑网PConlinehttp://www.pconline.com.cn/win10/725/7259509.htmlWin10 App如何走代理?Win10应用代理教程2015-12-01 09:12 出处：PConline原创作者：Aimo 10

2018-02-07 20:43:53 4115 1

原创 how to disable vimium for specific urls?

I use the extension vimium in my chrome to get easy control on the pages. But in the jupyter notebook pages, I need to disable vimium for jupyter notebook has its own keyboard shortcuts. It seems eas

2018-02-05 21:32:07 1035 4

转载 Linux->Windows主机目录和文件名中文乱码恢复 - clover_toeic - 博客园

Linux->Windows主机目录和文件名中文乱码恢复 - clover_toeic - 博客园https://www.cnblogs.com/clover-toeic/p/5235316.html中国知网文件乱码修复方法。Linux->Windows主机目录和文件名中文乱码恢复标签：字符编码 Python[TOC]声明本文主要记述作

2018-02-03 21:25:13 2721

转载字符编码笔记：ASCII，Unicode 和 UTF-8

字符编码笔记：ASCII，Unicode 和 UTF-8 - 阮一峰的网络日志http://www.ruanyifeng.com/blog/2007/10/ascii_unicode_and_utf-8.html字符编码笔记：ASCII，Unicode 和 UTF-8作者：阮一峰日期： 2007年10月28日

2018-02-03 13:18:06 657

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