tag:blogger.com,1999:blog-57285482026-06-27T17:35:04.805+08:00Jerry's SpaceThis blog is used to write some living concept.Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.comBlogger131125tag:blogger.com,1999:blog-5728548.post-35082531401841105842019-04-26T09:59:00.000+08:002019-04-26T09:59:45.081+08:00VScode setting for virtualenv pathref: https://codertw.com/%E4%BC%BA%E6%9C%8D%E5%99%A8/141315/
將以下內容複製到使用者設定(檔案->首選項->設定->使用者設定):
// 將設定放入此檔案中以覆蓋預設設定
{
//python虛擬環境路徑。 下例是指向 <專案目錄>/venv。 也可以直接指向絕對目錄。
"python.venvPath": "${workspaceFolder}/venv",
//可選
"python.venvFolders": [
"envs",
".pyenv",
".direnv",
".venv",
"venv"
],
//可選。 python.exe在venv下的路徑，需要參考"python.venvPath"配置
"python.pythonPath": "${Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-53634920487843829472018-10-12T23:47:00.002+08:002018-10-12T23:47:24.393+08:00git hard reset, revertgit 有三區:
git reset有多個選項:
hard: 把branch上的節點資料清除，把workspace所有的資料都清除，由repository上的資料替換
soft: 把branch上的節點資料清除，但workspace的資料不會移除
Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-68219257650864322812018-10-12T23:12:00.001+08:002018-10-12T23:42:06.692+08:00從github下載code後，更改到bitbucket私人專案的步驟有時候因為需要參考到github的程式進行修改，修改後的程式碼要放在私人專案進行測試的話，步驟可參考:
https://stackoverflow.com/questions/46691186/how-to-clone-a-project-from-github-but-use-bitbucket-as-remote-repository
原理:
把github的origin改成另一個名稱, e.g., upstream
新增origin remote 到bitbucket
push 到新origin remote
Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-29413922796598442212018-02-11T22:21:00.002+08:002018-02-11T22:21:57.051+08:00Let encrypt ssl installref: https://certbot.eff.org/#ubuntuxenial-apache
1. 安裝certbot
$ sudo apt-get update
$ sudo apt-get install software-properties-common
$ sudo add-apt-repository ppa:certbot/certbot
$ sudo apt-get update
$ sudo apt-get install python-certbot-apache
2. 執行下列命令，回答問題後，就完成ssl安裝
$ sudo certbot --authenticator webroot --installer apache
3. 每90天會過期，寫下列命令到 crontab自動展期
crontab -e
# renew ssl Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-42017380984933997362018-01-27T22:45:00.003+08:002018-01-27T22:45:52.399+08:00Machine Learning好文章http://blog.csdn.net/soulmeetliang/article/details/72619885Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-75498615152212838072018-01-27T12:08:00.000+08:002018-01-27T12:16:41.094+08:00Git學習的好資料[線上讀書會] Mouson 主講 git 入門 與應用實務
https://www.youtube.com/watch?v=gVByWjwetVc
[線上讀書會] 語堂 主講 github 實現多人共同開發
https://www.youtube.com/watch?v=OmlGiqilfRIJerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-5391707489663074122018-01-23T23:19:00.001+08:002018-01-27T10:36:23.473+08:00Vue的好教學影片Vue.js入门学习
https://www.youtube.com/playlist?list=PLu3b11EPo_MfxhGAgO1LTJuDLTMCHIGLvJerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-9861068248142955202018-01-20T23:54:00.000+08:002018-01-20T23:56:56.917+08:00HTML APP快速版面規劃nav: black, white
jumbotran: light-blue, dark font
button: green, white
font icon
6-column: white, black
side title: white, light gray
4-column: white, black
foot: green white
facebook font-awesome icon
tool:
fa2png.ioJerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-35877013298191729132018-01-15T22:39:00.001+08:002018-01-15T22:39:13.961+08:00VueRouter的問題如果沒有顯示，要檢查輸入的網址有沒有問題，
預設的情況下，必須為 localhost:8080/#/data/route, 重點在#字號，如果直接用絕對路徑去輸入，那麼vueRouter就會判斷錯誤。
詳
https://stackoverflow.com/questions/40550446/vue-js-routing-to-pages-not-workingJerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-43062593544113223992018-01-13T22:30:00.000+08:002018-01-14T17:33:35.689+08:00Word2Vec好資料1. https://youtu.be/Z7XimPdCFZ0
2. https://www.slideshare.net/ywchen88/word2vec-70245972?qid=c15fa37e-19cc-4903-b6a1-4486adc3a265&v=&b=&from_search=9
3. https://www.slideshare.net/HyunYoungLee3/word2-vec-81790245?qid=8ca149b7-4bb7-4b31-a1f8-f787ef8d9903&v=&b=&from_search=8
4. http://www.52nlp.cn/synonyms-%E4%B8%AD%E6%96%87%E8%BF%91%E4%B9%89%E8%AF%8D%E5%B7Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-12020225377005511752017-12-07T16:59:00.001+08:002017-12-07T16:59:09.207+08:00修正download目錄更新很慢的問題https://www.laptopmag.com/articles/slow-windows-downloads-folder
Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-27683988236060294742017-11-06T08:46:00.004+08:002017-11-06T09:03:20.868+08:00如何在node js中上傳檔案
ref:
multipart/form-data
What does enctype='multipart/form-data' mean?
https://stackoverflow.com/questions/4526273/what-does-enctype-multipart-form-data-mean
https://www.hacksparrow.com/handle-file-uploads-in-express-node-js.html
1. 可以用express內建的body parser，解出multipart/form-data後，直接利用req.filename來存取資料。
2. 可以在 ios中，找相關程式來形成post的multipart/form-data後，送給server解析
Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-39615194587279049132017-06-11T12:56:00.000+08:002017-06-11T12:56:55.974+08:00處理二欄Word論文時，殺不掉的最後空白頁面在寫二欄Word論文時，常常會碰到殺不掉的最後空白頁面，造成很大的困擾。把最後一頁刪除，則文件格式會跑掉；不刪除，則列印時都會出現最後空白一頁，多送紙。
解決方法:
到最後一行，把字型設定到最小，就可以解決這鳥問題。(不正規解法，但有用。)Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-29581769238633033852017-04-17T14:23:00.002+08:002017-04-18T14:57:49.327+08:00OpenStack Install with CentOSbg 重裝...Orz
安裝文件參考
https://www.hkitblog.com/?p=28724
vSwitch觀念影片
https://youtu.be/7x-JzMDN6Wc
很重要，必看***Introduction to Open vSwitch (OVS)
https://www.youtube.com/watch?v=rYW7kQRyUvA
心得:
0. 要用對外網路，不要用預設的命令，改用 (https://www.rdoproject.org/networking/neutron-with-existing-external-network/)
packstack --allinone --provision-demo=n --os-neutron-ovs-bridge-mappings=extnet:br-ex -Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-83564032239794929372017-04-17T14:14:00.002+08:002017-04-17T14:17:46.998+08:00Meteor框架記錄
Meteor框架跟django框架很類似，但也有很多不同的地方，如
meteor框架的架構主要是會分成client及server，資料庫的部分使用mongodb的collection(這部分的程式碼是可以共用的)。
檔案架構如下，其中imports目錄下的程式碼meteor不會主動載入，需要匯入的時候使用import語法匯入
client
server
imports
public
在各個目錄下面，會需要設計許多html網頁樣板，meteor會自動掃描樣板整合。
網頁樣板中的(只要一份)、(只要一份)、標記，meteor會自動掃描合併
在各個目錄下面，會需要設計許多javascript程式，用來輔助樣板功能
在路由的部分，可使用iron router及flow router，如果沒有要整合其他的前端框架，使用iron router 就可以了Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com1tag:blogger.com,1999:blog-5728548.post-67626565519804724972017-03-14T16:02:00.001+08:002017-03-14T16:02:21.068+08:00Install Ubuntu 14.04 on MacAir 2016REF:
1. Get the wireless driver and put into the flash drive
http://askubuntu.com/questions/626642/how-to-install-broadcom-wireless-drivers-offline
"
If you are using Ubuntu 14.04.2 installation media the driver will not build
If you have 14.04.2, then download 64-BIT DRIVER FROM UBUNTU REPOSITORY or 32-BIT DRIVER,
copy it to your home folder and run the same command. But you still
need Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-27926441268672508332017-03-11T12:45:00.001+08:002017-03-11T12:45:58.077+08:00Why Docker? VM or Physical一些想法
Q:Docker 要裝在實體機還是VM中?
裝在實體機中，效能當然是最好。但是如果沒有用到實體機的全部資源，或實體機運算能力強大，可以把實體機切割成多個VMs，例如同時跑 Windows及Linux VM，如此可充分利用硬體資源。
Q:為什麼實體機有了Docker還要裝多個VM?
Docker有一些限制，如不能跑Windows VM等。
Q:為什麼要在雲端VM中跑Docker?
1. 雲端中心有大量資源，只要有錢，運算能力可以隨時Scale UP。網路頻寬可隨時加大。
2. 雲端中心租用以VM為主，Docker需要跑在OS上，所以需要一台實體或VM才可以執行Docker。
3. 用VM容易備份。
Q:要租多台VMs或一台VM with Dockers?
如果系統無特殊需求，當然是一台VM結合多個Dockers，系統資源較為有效利用，且省錢。
Q: Docker的好處是Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-58219504974086244062017-02-14T17:09:00.003+08:002017-02-15T10:27:15.678+08:00SHVC /SHM 編譯Windows 10, VS2015Windows
1. Install TortoiseSVN
2. Go to https://hevc.hhi.fraunhofer.de/shvc
3. Use TortoiseSVN (Click on a folder with right mouse) to download https://hevc.hhi.fraunhofer.de/svn/svn_SHVCSoftware/tags/SHM-12.2/
4. Use visual studio 2015 community to compile.
5. Open the vc solution file.
6. build errors:
7. Install windows 8.1 sdk
8. Build Solution
Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-41621656300050526082016-12-26T20:30:00.000+08:002016-12-26T20:33:09.838+08:00Mobile App Design Flow1. Define the Problem and App Solution
2. Define Personas
3. Find the Use Case and User Story
4. Find the feature list
5. Prioritize the feature list (user story? scrum? kaban?)
6. MVP
7. Define main work flows and others.
8. Prototype High Level Wireframe
9. Confirm the wireframe and prototype with users
10. Coding and Testing
references:
https://www.udacity.com/course/Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-81602880638505323552016-11-30T08:22:00.000+08:002016-11-30T08:22:03.569+08:00FFMPEG 降低frame數，但保留audio及高視訊品質
ffmpeg -y -i Chap01_06.mp4 -r 15 -c:v libx264 -crf 18 -strict -2 -movflags faststart -c:a copy nnChap01_06.mp4
Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-4029131624130523732016-11-05T10:03:00.004+08:002016-11-05T10:51:24.639+08:00Scrum and user story好投影片http://www.slideshare.net/ertjona/workshop-paper-prototying-game
User Story Mapping Workshop (Design Skills 2016)
http://www.slideshare.net/mozyrko/user-story-mapping-design-skills-2016?qid=03fdb600-19a5-4610-9eb8-f9600f0bede2&v=&b=&from_search=5
Agile meetuphsinchu user story mapping workshop
http://www.slideshare.net/ssusere62027/agile-meetuphsinchu-user-story-mapping-workshop?qidJerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-51270403884974601782016-11-05T10:03:00.003+08:002016-11-05T10:07:25.856+08:00Scrum好投影片http://www.slideshare.net/ertjona/workshop-paper-prototying-gameJerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-86833115346777382942016-10-25T23:21:00.000+08:002016-10-25T23:21:05.951+08:00Word調整目錄及標號字型
目錄部份， 修改各層「目錄」相關樣式就可以了
標號部份，可於插入標號後，按ctrl+shift+s鍵叫出「目前」所在標號的樣式選單，再選「修改」樣式，去修改字型大小就好了。
Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-59273118133922056322016-10-15T10:04:00.000+08:002016-10-15T10:04:58.506+08:00psnr and ssim 好文章1. Ji Life House: 圖片相似度----SSIM以及PSNR
http://jirongwu81.blogspot.tw/2016/09/ssimpsnr.html
2. 视频编码方案之间的比较（HEVC，H.264，MPEG2等）
http://www.cnblogs.com/xkfz007/p/4509746.html
3. 電機工程系碩士班碩士學位論文基於SSIM 之H.264 視訊傳輸服務品質
4. [參考] x264命令行參數解釋
https://www.ptt.cc/bbs/AVEncode/M.1305719689.A.615.html
5. Netflix 評估影片品質的方法
https://blog.gslin.org/archives/2016/06/08/6618/netflix-%E8%A9%Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0tag:blogger.com,1999:blog-5728548.post-49182874357742140632016-10-10T00:17:00.005+08:002016-10-10T00:33:49.103+08:00Node.js Job Queue Reference:
Kue, https://github.com/Automattic/kue
Document/Example:
https://www.linkedin.com/pulse/job-queue-nodejs-adrien-desbiaux
1. Install Redis
2. Install Kue
Usage:
Producer
1. 建立queue instance
var kue = require('kue'),
var jobs = kue.createQueue();
2. 建立job
job = jobs.create('bessel-filter-image', jobArgs).save();
3. 等待job 結束(callback)
Jerry Hsuhttp://www.blogger.com/profile/08257164951113708320noreply@blogger.com0