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Tensorflow.js - 07. Build an image classifier

Posted on February 03, 2020

Transfer learning image classifier 1. Introduction ๋ฐฐ์šฐ๊ฒŒ ๋  ๊ฒƒ 2. ์š”๊ตฌ ์‚ฌํ•ญ 3. Tensorflow.js์™€ MobileNet ๋ถˆ๋Ÿฌ์˜ค๊ธฐ 4. ๋ธŒ๋ผ์šฐ์ €์—์„œ MobileNet์„ ๋กœ๋”ฉ 5. MobileNet์„ ํ…Œ์ŠคํŠธ ํ•˜๊ธฐ 6. ๋ธŒ๋ผ์šฐ์ €์—์„œ ์›น์บ ์„ ํ™œ์šฉํ•˜์—ฌ MobileNet ๋ชจ๋ธ์„ ์‹คํ–‰ํ•˜๊ธฐ 7. MobileNetโ€ฆ

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์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ์—์„œ http ์š”์ฒญํ•˜๊ธฐ - fetch์— ๋Œ€ํ•œ ๊ณ ์ฐฐ

Posted on January 21, 2020

1. ์„œ๋ก  2. XMLHttpRequest 3. JQuery Ajax 3. async await & fetch 4. fetch polyfill 5. deep dive to fetch 5-1. ์—๋Ÿฌ ์ฒ˜๋ฆฌ 5-2. Abortable Fetch 5-3. fetch in react 6. ๊ฒฐ๋ก  1. ์„œ๋ก  ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ์—์„œ httpโ€ฆ

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Tensorflow.js - 05. Training and Prediction in Node.js

Posted on January 15, 2020

Training and Prediction in Node.js 1. ์†Œ๊ฐœ 2. ์š”๊ตฌ ์‚ฌํ•ญ 3. Nodejs.app ์„ค์น˜ 4. ํ•™์Šต/ํ…Œ์ŠคํŠธ์šฉ ๋ฐ์ดํ„ฐ ์„ค์น˜ํ•˜๊ธฐ 5. ๊ตฌ์งˆ์„ ๊ตฌ๋ณ„ํ•˜๋Š” ๋ชจ๋ธ ๋งŒ๋“ค๊ธฐ 6. ๋ชจ๋ธ์„ ์„œ๋ฒ„์—์„œ ํ›ˆ๋ จ์‹œํ‚ค๊ธฐ 7. ํด๋ผ์ด์–ธํŠธ ํŽ˜์ด์ง€๋ฅผ ๋งŒ๋“ค๊ณ  display ์šฉ ์ฝ”๋“œ ๋งŒ๋“ค๊ธฐ 8. ์•ฑ ์‹คํ–‰ํ•˜๊ธฐ 9. ๋ฐฐ์šด๊ฒƒ Training and Predictionโ€ฆ

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React count down์—์„œ ๋ฐฐ์šด event-emitter ์™€ requestAnimationFrame

Posted on January 14, 2020

๋ฆฌ์•กํŠธ์—์„œ ์นด์šดํŠธ ๋‹ค์šด์„ ๋งŒ๋“ค๋ฉฐ ๋ฐฐ์šด ๊ฒƒ๋“ค ๋ฆฌ์•กํŠธ์—์„œ ์นด์šดํŠธ ๋‹ค์šด์„ ๋งŒ๋“ ๋‹ค๊ณ  ๊ฐ€์ •ํ•ด๋ณด์ž. ๊ฐ€์žฅ ๋จผ์ € ์ƒ๊ฐ๋‚˜๋Š”๋Œ€๋กœ, ๋น ๋ฅด๊ฒŒ ๊ตฌํ˜„ํ•œ๋‹ค๋ฉด ์•„๋ž˜์™€ ๊ฐ™์€ ๋Š๋‚Œ์ด ๋  ๊ฒƒ์ด๋‹ค. ํ•˜์ง€๋งŒ ์ด ์ฝ”๋“œ๋Š” ํ•œ๊ฐ€์ง€ ๋ฌธ์ œ๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋‹ค. setInterval, setTimeoutโ€ฆ

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2020๋…„, ๋งค์ผ github์— contribution ํ•˜๊ธฐ

Posted on January 11, 2020

๋ธ”๋กœ๊ทธ์˜ ์„ฑ์žฅ 2018๋…„ 5์›” 1์ผ์— ๋ธ”๋กœ๊ทธ๋ฅผ ์‹œ์ž‘ํ•œ ์ด๋ก€๋กœ ํ—›์†Œ๋ฆฌ๋ฅผ ์ง€๊ป„์ด๋Š” ๋ธ”๋กœ๊ทธ์—์„œ, ์ œ๋ฒ• ์ด์‚ฌ๋žŒ ์ €์‚ฌ๋žŒ ์ฐพ์•„์˜ค๋Š” ๋ธ”๋กœ๊ทธ๋กœ ์„ฑ์žฅํ–ˆ๋‹ค. ๊พธ์ค€ํ•œ ๋ธ”๋กœ๊ทธ ๋ป˜ ๊ธ€๊ณผ ํšŒ์‚ฌ์—์„œ ์ผํ•˜๋Š” ๊ฒƒ ๋•๋ถ„์— github contribution์— ์ดˆ๋ก์ƒ‰ ๋ถˆ๋„ ๋งŽ์ด ๋“ค์–ด์˜ค๊ณ  ์žˆ๋‹ค. github contribution์€ 2013๋…„์— ์ƒ๊ธด ์ด๋ž˜๋กœ ๊ฐœ๋ฐœ์ž์˜ dailyโ€ฆ

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Chrome Samesite ์ฟ ํ‚ค ์ •์ฑ…

Posted on January 09, 2020

๋ฌธ์ œ์˜ ์‹œ์ž‘ ์ง€๋‚œ ์ฃผ๋ง, ์—„์ฒญ๋‚˜๊ฒŒ ๊ธ‰ํ•˜๊ฒŒ ๋น ๋ฅธ ์†๋„๋กœ ํ”„๋กœ์ ํŠธ๋ฅผ heroku์— ์˜ฌ๋ฆด ์ผ์ด ์žˆ์—ˆ๋‹ค. DB๋„ ์ƒˆ๋กœ๋งŒ๋“ค์–ด์•ผํ•˜๊ณ , ๋กœ๊ทธ์ธ๋„ ํ•„์š”ํ•œ ์‚ฌ์ดํŠธ๋ผ DB๋Š” Heroku์˜ Clean DB๋ฅผ, ๋กœ๊ทธ์ธ์€ google sign-in for websites์„ ์‚ฌ์šฉํ•˜์˜€๋‹ค. ์ฒ˜์Œ์—๋Š” passport google auth๋ฅผ ์‚ฌ์šฉํ•˜๋ ค๋‹ค๊ฐ€, ๊ทธ๋ƒฅ ํ•˜๋Š” ๊น€์— ์ง์ ‘ apiโ€ฆ

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Tensorflow.js - 04. CNN

Posted on January 02, 2020

Handwritten digit recognition with CNNs 1. ๋“ค์–ด๊ฐ€๊ธฐ์ „์— ๋งŒ๋“ค์–ด ๋ณผ ๊ฒƒ ์šฐ๋ฆฌ๊ฐ€ ๋ฐฐ์šธ ๊ฒƒ ํ•™์Šต ์ „์— ์ค€๋น„ํ•ด์•ผ ํ•  ๊ฒƒ 2. Set up HTML, Javascript ์ƒ์„ฑ ๋ฐ์ดํ„ฐ์™€ ์ฝ”๋“œ๋ฅผ ์œ„ํ•œ ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ ํŒŒ์ผ ์ƒ์„ฑ ํ…Œ์ŠคํŠธ ํ•ด๋ณด๊ธฐ 3. Load the Data 4. ์ž‘์—…์˜ ๊ฐœ๋…ํ™”โ€ฆ

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๋จธ์ง€๋œ ๋ธŒ๋žœ์น˜๋ฅผ ์‚ญ์ œํ•˜๋Š” ์Šคํฌ๋ฆฝํŠธ

Posted on January 01, 2020

remote์—์„œ ์ด๋ฏธ master๋กœ ๋จธ์ง€๋œ local/remote ๋ธŒ๋žœ์น˜๋ฅผ ์‚ญ์ œํ•˜๋Š” ์Šคํฌ๋ฆฝํŠธ ์šฐ๊ต์ˆ˜๋‹˜๊ป˜ ๊ฐ์‚ฌ์˜ ๋ง์”€์„ ๐Ÿ™‡โ€โ™‚๏ธ

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๋ธ”๋กœ๊ทธ ๊ฐœํŽธํ–ˆ์Šต๋‹ˆ๋‹ค. ๐Ÿ˜Ž

Posted on December 30, 2019

์ฃผ๋ง์— ์ง‘๊ตฌ์„์— ํ˜ผ์ž ์˜ค๋ž˜์žˆ์„ ์ผ์ด ์žˆ์–ด์„œ, ์ƒ๊ฐ๋‚œ ๊น€์— ๋ธ”๋กœ๊ทธ๋ฅผ ๊ฐœํŽธํ–ˆ์Šต๋‹ˆ๋‹ค. ์ด ์ „์—๋Š” hexo ๊ธฐ๋ฐ˜์œผ๋กœ ๋งŒ๋“ค์–ด์ง„ ๋ธ”๋กœ๊ทธ๋ฅผ ์ž‘์—…ํ–ˆ๋Š”๋ฐ, hexo ์ƒํƒœ๊ณ„๊ฐ€ ๊ด€๋ฆฌ๊ฐ€ ์ž˜ ์•ˆ๋˜๊ณ  ์žˆ๋Š” ๊ฑด์ง€ ํ”Œ๋Ÿฌ๊ทธ์ธ์ด๋‚˜ ๊ธฐ๋Šฅ๋“ค์ด ์ œ๋Œ€๋กœ ๋™์ž‘์„ ์•ˆํ•˜๋”๊ตฐ์š”. wordpress -> ??? -> github pages -> hexo -> gatsbyโ€ฆ

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์ค‘์•™์€ํ–‰ ๋””์ง€ํ„ธํ™”ํ: ์™œ ์ •๋ถ€๋Š” ๋””์ง€ํ„ธํ™”ํ๋ฅผ ๋ฐœํ–‰ํ•˜๋ ค๊ณ (ํ•˜์ง€ ์•Š์œผ๋ ค๊ณ ) ํ• ๊นŒ

Posted on December 27, 2019

Central Bank-Issued Digital Currencies: Why Governments May (or May Not) Need Them ์›๋ฌธ ์ผ๋ณธ์€ํ–‰ ์•„๋งˆ๋ฏธ์•ผ ๋งˆ์‚ฌ์š”์‹œ ๋ถ€์ด์žฌ๋Š” 20์ผ ์ค‘์•™์€ํ–‰์—์„œ ๋ฐœํ–‰ํ•œ ๋””์ง€ํ„ธ ํ™”ํ(CBDC)๊ฐ€ ๊ธฐ์กด ํ™”ํ๋ฅผ ๊ฐœ์„ ํ•˜์ง€ ๋ชปํ•  ๊ฐ€๋Šฅ์„ฑ์ด ๋‚ฎ๋‹ค๊ณ  ๊ฑฐ๋“ญ ์ฃผ์žฅํ–ˆ๋‹ค. CBDC(์ค‘์•™์€ํ–‰ ๋ฐœํ–‰ ๋””์ง€ํ„ธ ํ™”ํ, Centralโ€ฆ

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Tensorflow.js - 03. Linear Regression

Posted on December 23, 2019

Linear Regression ๋ช‡ ๋ฒˆ์งธ ์„ ํ˜• ํšŒ๊ท€์ธ์ง€ ์•Œ ์ˆ˜ ์—†๋‹ค. 01. 2d data๋กœ ์˜ˆ์ธกํ•ด๋ณด๊ธฐ ์ด๋ฒˆ ํŠœํ† ๋ฆฌ์–ผ์—์„œ๋Š” ์ž๋™์ฐจ ์„ธํŠธ๋ฅผ ํ‘œํ˜„ํ•œ ์ˆซ์ž ๋ฐ์ดํ„ฐ๋กœ ์˜ˆ์ธกํ•˜๋Š” ๋ชจ๋ธ์„ ํ›ˆ๋ จ์‹œ์ผœ ๋ด…๋‹ˆ๋‹ค. ์ด ์—ฐ์Šต์—์„œ๋Š” ๋‹ค์–‘ํ•œ ์ข…๋ฅ˜์˜ ๋ชจ๋ธ์„ ํ›ˆ๋ จํ•˜๋Š” ๊ณตํ†ต์ ์ธ ๋‹จ๊ณ„๋ฅผ ๋ณด์—ฌ์ฃผ๊ณ , ์ด์— ๋”ฐ๋ผ ์ž‘์€ ๋ฐ์ดํ„ฐ ์„ธํŠธ์™€ ๊ฐ„๋‹จํ•œ ๋ชจ๋ธ์„ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค. 1์ฐจ์ ์ธ ๋ชฉํ‘œ๋Š” Tensorflowโ€ฆ

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Tensorflow.js - 01. ์‹œ์ž‘ํ•˜๊ธฐ

Posted on December 20, 2019

https://www.tensorflow.org/js/tutorials์„ ๊ฐœ์ธ์ ์ธ ํ•™์Šต์„ ์œ„ํ•ด ๋ฒˆ์—ญํ•œ ๊ธ€์ž…๋‹ˆ๋‹ค. ์ •ํ™•ํ•œ ๋ฒˆ์—ญ์„ ์œ„ํ•ด์„œ๊ฐ€ ์•„๋‹ˆ๋ผ, ๊ฐœ์ธ์ ์ธ ๊ณต๋ถ€๋ฅผ ์œ„ํ•ด์„œ ํ•˜๋Š” ๊ฒƒ์ž…๋‹ˆ๋‹ค. ์˜คํ•ด ใ„ดใ„ด ์‹œ์ž‘ํ•˜๊ธฐ Tensorflow.js๋Š” ๋ธŒ๋ผ์šฐ์ €์™€ Node.jsโ€ฆ

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Tensorflow.js - 02. ์„ค์น˜ํ•˜๊ธฐ

Posted on December 20, 2019

์ด์ „๊ธ€ ๋ณด๊ธฐ ์„ค์น˜ ๋ธŒ๋ผ์šฐ์ € ์„ค์น˜ Tensorflow.js๋ฅผ ์„ค์น˜ํ•˜๋Š” ๋ฐฉ๋ฒ•์€ ๋‘ ๊ฐ€์ง€๊ฐ€ ์žˆ์Šต๋‹ˆ๋‹ค. Script tag๋ฅผ ์ด์šฉํ•˜๋Š”๋ฒ• npm์„ ์ด์šฉํ•ด์„œ ์„ค์น˜ํ•˜๊ณ , Parcel, Webpack, Rollupโ€ฆ

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2020๋…„ ๋ชฉํ‘œ

Posted on December 18, 2019

Don't do anything boring Tensorflow JS ์ค‘์š”๋„: โ˜…โ˜…โ˜…โ˜…โ˜… ๋‚œ์ด๋„: โ˜…โ˜…โ˜…โ˜…โ˜… AI๊ฐ€ ํ•˜๊ณ  ์‹ถ์–ด์š” ์„ ์ƒ๋‹˜... tensorflowjs ๋ฅผ ํŠœํ† ๋ฆฌ์–ผ๋ถ€ํ„ฐ ๋”ฐ๋ผํ•˜๋ฉด์„œ ๋ฐฐ์›Œ๋ณด์ž. ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๊ฐ•์˜ ๋ฐฑ์ค€๊ฐ•์˜ ์ด์ œ ์•Œ๊ณ ๋ฆฌ์ฆ˜ ์ •๋ณตํ•  ๋•Œ๊ฐ€ ๋˜์—ˆ๋‹ค. ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ์™€ ํŒŒ์ด์ฌ์œผ๋กœ ์ง„ํ–‰ํ•ด๋ณผ ์˜ˆ์ •. ์ค‘์š”๋„: โ˜…โ˜…โ˜…โ˜… ๋‚œ์ด๋„: โ˜…โ˜… Preferenceโ€ฆ

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Github์„ ์•„๋ฆ„๋‹ต๊ฒŒ ๊ด€๋ฆฌํ•˜๊ธฐ

Posted on December 18, 2019

Commit Message ์ข‹์€ git commit ๋ฉ”์‹œ์ง€๋ฅผ ์œ„ํ•œ ์˜์–ด์‚ฌ์ „ ์ข‹์€ git ์ปค๋ฐ‹ ๋ฉ”์‹œ์ง€๋ฅผ ์ž‘์„ฑํ•˜๊ธฐ ์œ„ํ•œ 7๊ฐ€์ง€ ์•ฝ์† ์š”์•ฝ Single Line Multi Line Single Line ๊ณผ ๋™์ผํ•˜์ง€๋งŒ, Multi Line ์œผ๋กœ ๊ฐ€๋ฉด ๋‘ ๋ฒˆ์งธ ๋ผ์ธ์€ ๋ฐ˜๋“œ์‹œ ๋น„์›Œ๋‘˜ ๊ฒƒ ์„ธ ๋ฒˆ์งธ ๋ผ์ธ๋ถ€ํ„ฐ Change ์ƒ์„ธ๋ฅผ ๋ฆฌ์ŠคํŠธ ํ˜•์‹์œผ๋กœ ๊ธฐ์ˆ  Linearโ€ฆ

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2019๋…„ ํšŒ๊ณ 

Posted on December 13, 2019

2019๋…„๋„ ์ด์ œ 2์ฃผ๊ฐ€ ์ฑ„ ๋‚จ์ง€ ์•Š์•˜์Šต๋‹ˆ๋‹ค. 2019๋…„์— ๋Œ€ํ•ด ์ž ์‹œ ๋’ค๋Œ์•„ ๋ณด๋Š” ์‹œ๊ฐ„์„ ๊ฐ–๋„๋ก ํ•˜๊ฒ ์Šต๋‹ˆ๋‹ค. Achievement 1. ํ‡ด์‚ฌ ๊ทธ๋ฆฌ๊ณ  ์ด์ง ์‚ฌ์‹ค K์‚ฌ์— ์žˆ์—ˆ์„ ๋•Œ์—๋Š”, ๋‚˜๋ฆ„์— ๊ทธ ๋‹ค์Œ ์ด์ง์— ๋Œ€ํ•œ ๋ช‡๊ฐ€์ง€ ์›์น™์ด ์žˆ์—ˆ์Šต๋‹ˆ๋‹ค. 3๋…„์„ ์ฑ„์›Œ์„œ ๊ผญ ์•ˆ์‹์›”โ€ฆ

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๋ฆฌ์•กํŠธ ํ…์ŠคํŠธ ํ•˜์ด๋ผ์ดํŠธ ๋งŒ๋“ค๊ธฐ

Posted on October 15, 2019

์š”๊ตฌ์‚ฌํ•ญ ํ•œ ์—˜๋ฆฌ๋จผํŠธ์•ˆ์—์„œ ํŠน์ •ํ•œ ํ‚ค์›Œ๋“œ๋ฅผ ๋‹ค๋ฅธ ์ƒ‰์‹ฑ์œผ๋กœ ๋ฐ”๊ฟ”์„œ ์ถœ๋ ฅํ•˜๋Š” ๊ฒƒ์ด๋‹ค. ์•„๋ž˜ ์˜ˆ์‹œ๋ฅผ ์‚ดํŽด๋ณด์ž before after ์˜์‹์˜ ํ๋ฆ„ ํŠน์ • ํ‚ค์›Œ๋“œ๊ฐ€ ํฌํ•จ๋˜์–ด ์žˆ๋Š”์ง€, ๊ทธ๋ฆฌ๊ณ  ๊ทธ๊ฒƒ์„ ๋”ฐ๋กœ ๋ฝ‘์•„ ๋‚ผ ์ˆ˜ ์žˆ๋Š” ๊ฐ€์žฅ ๊ฐ„๋‹จํ•œ ๋ฐฉ๋ฒ•์€ ๋ฌด์—‡์ผ๊นŒ? ๋ฐ”๋กœ split ์ผ ๊ฒƒ์ด๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์—ฌ๊ธฐ์„œ ๋‘ ๊ฐ€์ง€ ๋ชฐ๋ž๋˜ ์‚ฌ์‹ค์„ ์•Œ๊ฒŒ ๋œ๋‹ค. ์ฒซ ๋ฌธ์ž์— seperatorโ€ฆ

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typescript debounce

Posted on October 14, 2019

Creates a debounced function that delays invoking func until after wait milliseconds have elapsed since the last time the debounced function was invoked. The debounced function comes with a cancelโ€ฆ

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๋ธŒ๋ผ์šฐ์ € ํžˆ์Šคํ† ๋ฆฌ ์กฐ์ž‘

Posted on September 30, 2019

๋ธŒ๋ผ์šฐ์ € ํžˆ์Šคํ† ๋ฆฌ ๋ธŒ๋ผ์šฐ์ €์˜ ํžˆ์Šคํ† ๋ฆฌ๋Š” ์•ˆ์— ์žˆ๋‹ค. ๋งŒ ๊ฐ€์ ธ์˜ฌ ์ˆ˜ ์žˆ์„ ๋ฟ, ์‹ค์ œ ๋‚ด๋ถ€์— ๋ฆฌ์ŠคํŠธ๋Š” ๊ฐ€์ ธ์˜ฌ ์ˆ˜๊ฐ€ ์—†๋Š”๋ฐ ์ด๋Š” ๋ณด์•ˆ์ƒ์˜ ๋ฌธ์ œ ๋•Œ๋ฌธ์ด๋‹ค. ๋Š” ๊ฐ๊ฐ ๋ธŒ๋ผ์šฐ์ €์˜ ์•ž์œผ๋กœ๊ฐ€๊ธฐ ๋’ค๋กœ ๊ฐ€๊ธฐ์™€ ๋™์ผํ•œ ์—ญํ• ์„ ํ•œ๋‹ค. ํŠน์ • ์œ„์น˜๋กœ ๊ฐ€๊ธฐ ํ˜„์žฌ ํŽ˜์ด์ง€์˜ index๋Š” 0 ์ด๋ผ๊ณ  ๋ณผ ์ˆ˜ ์žˆ๋‹ค. -1 ์€ ๋ฐ”๋กœ ์ „ ํŽ˜์ด์ง€,โ€ฆ

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ํƒ€์ž…์Šคํฌ๋ฆฝํŠธ ์ œ๋„ค๋ฆญ

Posted on September 19, 2019

์ œ๋„ค๋ฆญ์ด๋ž€ ์ œ๋„ค๋ฆญ์€ ํด๋ž˜์Šค ๋‚ด๋ถ€์—์„œ ์‚ฌ์šฉํ•˜๋Š” ๋ฐ์ดํ„ฐ์˜ ํƒ€์ž…์„ ์™ธ๋ถ€์—์„œ ์ง€์ •ํ•˜๋Š” ๊ฒƒ์„ ์˜๋ฏธํ•œ๋‹ค. ์–ด๋–ค ํƒ€์ž…์˜ ๋ฐ์ดํ„ฐ๋ฅผ ์“ธ์ง€๋ฅผ, ํด๋ž˜์Šค ์„ ์–ธ๋ถ€๊ฐ€ ์•„๋‹ˆ๋ผ ์™ธ๋ถ€์—์„œ ๊ฒฐ์ •ํ•˜๋Š” ๊ฒƒ์ด๋‹ค. ์ผ๋‹จ ์ž๋ฐ” ์ฝ”๋“œ๋กœ ํ•œ๋ฒˆ ์‚ดํŽด๋ณด์ž. ๋ผ๋Š” ๋ฐ์ดํ„ฐ ํƒ€์ž…์€ ์กด์žฌํ•˜์ง€ ์•Š๋Š”๋‹ค. ๋Š” name์˜ ํƒ€์ž…์œผ๋กœ, ์•„๋ž˜ ์ฒ˜๋Ÿผ Personโ€ฆ

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๋ฆฌ์•กํŠธ ์ธํ„ฐ๋ทฐ ์งˆ๋ฌธ & ๋‹ต (2)

Posted on August 21, 2019

๋ชฉ์ฐจ table of contents React Router What is React Router? How React Router is different from history library? What are the components of React Router v4? What is the purpose of and methods of ? Howโ€ฆ

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๋ฆฌ์•กํŠธ ์ธํ„ฐ๋ทฐ ์งˆ๋ฌธ & ๋‹ต (1)

Posted on August 20, 2019

๋ชฉ์ฐจ Core React What is React What are the major features of React? What is JSX? What is the difference between Element and Component? How to create components in React? When to use a Class Componentโ€ฆ

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ํƒ€์ž…์Šคํฌ๋ฆฝํŠธ ํƒ€์ž… ๋‹จ์–ธ

Posted on August 20, 2019

๋ฌธ์ œ์˜ ์‹œ์ž‘ ๋ฌธ์ œ์˜ ์‹œ์ž‘์€ ์—ฌ๊ธฐ ์˜€๋‹ค. ๋‚ด๊ฐ€ ์‚ฌ์šฉํ•˜๋Š” ์ฝ”๋“œ๋Š” ์•„๋ž˜์™€ ๊ฐ™์•˜๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ๋‹ค๋ฅธ ํ”„๋กœ์ ํŠธ์—์„œ ์•„๋ž˜์™€ ๊ฐ™์€ ์—๋Ÿฌ๊ฐ€ ๋ฐœ์ƒํ–ˆ๋‹ค. ํŒŒ๋ผ๋ฏธํ„ฐ๋กœ์˜ค๋Š” ์ด enum์˜ ํ‚ค๊ฐ€ ์•„๋‹ ์ˆ˜๋„ ์žˆ๊ธฐ ๋•Œ๋ฌธ์— ๋ฐœ์ƒํ•˜๋Š” ์—๋Ÿฌ ์˜€๋‹ค. ๊ธฐ์กด lint ๋ฃฐ์—์„œ๋Š” any๋ฅผ acceptโ€ฆ

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๋ฆฌ์•กํŠธ ์ธํ„ฐ๋ทฐ ์งˆ๋ฌธ & ๋‹ต

Posted on August 13, 2019

์›๋ฌธ-reactjs-interview-questions 1. Core React 2. React - Router, Internationalization, Redux, Native and supported libraries and Integration 

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koa-nextjs-react-typescript-boilerplate

Posted on August 12, 2019

github repository nextjs์™€ react ๋งŒ ๊น”๋”ํ•˜๊ฒŒ ์“ฐ๊ณ  ์‹ถ์ง€๋งŒ, ๊ทธ๋Ÿฌ๊ธฐ์—” ํ˜„์‹ค์ ์ธ ๋ฌธ์ œ๊ฐ€ ๋ช‡๊ฐ€์ง€ ์žˆ๋‹ค

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๋ธŒ๋ผ์šฐ์ €๋Š” ์–ด๋–ป๊ฒŒ ๋™์ž‘ํ•˜๋Š”๊ฐ€? - ๋ชจ๋˜ ์›น๋ธŒ๋ผ์šฐ์ €๊ฐ€ ๋™์ž‘ํ•˜๋Š” ๋ฐฉ๋ฒ•

Posted on August 12, 2019

๐Ÿšง์ž‘์„ฑ์ค‘ ๐Ÿšง ์›๋ฌธ-How Browsers Work: Behind the scenes of modern web browsers ์ด ๊ธ€์„ ์š”์•ฝ/๋ฒˆ์—ญํ•œ ๋” ์ข‹์€ ๊ธ€์ด ๋„ค์ด๋ฒ„ d2์— ์žˆ์Šต๋‹ˆ๋‹ค. ๊ฐœ์ธ์ ์ธ ๊ณต๋ถ€ ์ฐจ์›์—์„œ ์ด ์›๋ฌธ์„ fullyโ€ฆ

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React Hooks Api (2)

Posted on August 12, 2019

useReducer ์˜ ๋Œ€์ฒด ํ•จ์ˆ˜๋‹ค. ๋‹ค์ˆ˜์˜ ํ•˜์œ— ๊ฐ’์„ ๋งŒ๋“œ๋Š” ๋ณต์žกํ•œ ๋กœ์ง, ํ˜น์€ ๋‹ค์Œ state๊ฐ€ ์ด์ „ state์˜ ์˜์กด์ ์ธ ๊ฒฝ์šฐ์— ์“ด๋‹ค. ๋ญ๊ฐ€ ๋ญ”์ง€ ๋ชจ๋ฅด๊ฒ ์œผ๋‹ˆ๊นŒ ์˜ˆ์ œ๋ฅผ ๋ณด์ž. useState๋ฅผ ์“ฐ๊ธฐ์ „ ์˜ˆ์ œ๋ฅผ ๋ณด๋‹ˆ ๋Œ€์ถฉ ๊ฐ์ด ์˜จ๋‹ค. dispatch๋ฅผ ํ†ตํ•ด์„œ state๊ฐ’์— ๋ณ€ํ™”๋ฅผ ์ฃผ์ง€ ์•Š๊ณ  stateโ€ฆ

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React Hooks Api (1)

Posted on August 08, 2019

Hooks API Hook์€ react 16.8์—์„œ ์ถ”๊ฐ€๋œ ๊ฐœ๋…์œผ๋กœ, Hook์„ ์‹œ์šฉํ•˜๋ฉด class๋ฅผ ๊ฐ–์„ฑํ•˜์ง€ ์•Š์•„๋„ state๊ด€๋ฆฌ์™€ ๊ฐ™์€ react์˜ ๊ธฐ๋Šฅ์„ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋‹ค. ๊ธฐ๋ณธ Hook useStateโ€ฆ

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HAProxy

Posted on August 07, 2019

๋กœ๋“œ๋ฐธ๋Ÿฐ์„œ ๋กœ๋“œ ๋ฐธ๋Ÿฐ์‹ฑ์ด๋ž€, ๋ถ€ํ•˜ ๋ถ„์‚ฐ์„ ์œ„ํ•ด์„œ ๊ฐ€์ƒ IP๋ฅผ ํ†ตํ•ด ์—ฌ๋Ÿฌ ์„œ๋ฒ„์— ์ ‘์†ํ•˜๋„๋ก ๋ถ„๋ฐฐํ•˜๋Š” ๊ธฐ๋Šฅ์„ ๋งํ•œ๋‹ค. ๋กœ๋“œ ๋ฐธ๋Ÿฐ์‹ฑ์—์„œ ์‚ฌ์šฉํ•˜๋Š” ์ฃผ์š” ๊ธฐ์ˆ ์€ NAT(Network Address Translation): ์‚ฌ์„ค IP ์ฃผ์†Œ๋ฅผ ๊ณต์ธ IP ์ฃผ์†Œ๋กœ ๋ฐ”๊พธ๋Š” ๋ฐ ์‚ฌ์šฉํ•˜๋Š” ํ†ต์‹ ๋ง์˜ ์ฃผ์†Œ ๋ณ€์กฐ๊ธฐ์ด๋‹ค. DSR(Dynamic Source Routing protocolโ€ฆ

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Docker์™€ ECR, ECS ๊ฒฝํ—˜

Posted on August 06, 2019

์ œ๋ฒ• ๊ทœ๋ชจ๊ฐ€ ์žˆ์—ˆ๋˜ ์ „ ํšŒ์‚ฌ์—์„œ๋Š” ํŠน๋ณ„ํ•˜๊ฒŒ ์ธํ”„๋ผ์— ๋Œ€ํ•ด ๊ณ ๋ฏผ์„ ๋ณ„๋กœ ํ•  ํ•„์š”๊ฐ€ ์—†์—ˆ๋‹ค. ๋งŽ์€ ๋ถ€๋ถ„์ด ์ž๋™ํ™”๋˜์–ด ์žˆ์—ˆ๊ณ , ๋˜ ์ ๋‹นํ•œ ํˆด๋กœ ์ž˜ ๋งŒ๋“ค์–ด์ ธ ์žˆ์—ˆ๊ธฐ ๋•Œ๋ฌธ์— ๊ฐœ๋ฐœ์— ์˜จ์ „ํžˆ ์ง‘์ค‘ํ•  ์ˆ˜ ์žˆ์—ˆ๋‹ค. ํ•˜์ง€๋งŒ ์ƒˆ๋กญ๊ฒŒ ์˜จ ์Šคํƒ€ํŠธ์—…์€ (๋‹น์—ฐํ•˜๊ฒŒ๋„) ๊ทธ๋Ÿฐ๊ฒŒ ์—†์œผ๋ฏ€๋กœ, ํšŒ์‚ฌ์—์„œ ์‚ฌ์šฉํ•˜๊ณ  ์žˆ๋Š” AWSโ€ฆ

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Javascript Reduce

Posted on July 22, 2019

๋ฉ์ฒญ์ด๋ผ ๊ทธ๋Ÿฐ์ง€ ํ•จ์ˆ˜๊ฐ€ ์ž˜ ์ดํ•ด ๋˜์ง€ ์•Š์•˜๋‹ค. Reduce : ์ฒ˜๋ฆฌํ•  ํ˜„์žฌ ์š”์†Œ (optional): ์ฒ˜๋ฆฌํ•  ์š”์†Œ์˜ ์ธ๋ฑ์Šค : ์ฝœ๋ฐฑ์˜ ๋ฐ˜ํ™˜๊ฐ’์„ ๊ณ„์†ํ•ด์„œ ๋ˆ„์ ํ•œ๋‹ค. ์ด ์˜ˆ์ œ์—์„œ๋Š” ์ฒ˜์Œ์—” , ๊ทธ ๋‹ค์Œ์—” , ๊ทธ ๋‹ค์Œ์—” ๊ฐ€ ๋  ๊ฒƒ์ด๋‹ค. (optional): ๋ฅผ ํ˜ธ์ถœํ•œ ๋ฐฐ์—ด, ์—ฌ๊ธฐ์„œ๋Š” ์ด ๋  ๊ฒƒ์ด๋‹ค. (optional): ์˜ ์ตœ์ดˆ ๊ฐ’. ์—†์œผ๋ฉด ๋ฐฐ์—ด์˜โ€ฆ

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Javascript Set ๊ทธ๋ฆฌ๊ณ  Map

Posted on July 18, 2019

๊ทผ๋ฐ ์‚ฌ์‹ค.. ์ปฌ๋ ‰์…˜ ํ•„์š”์—†์ง€ ์•Š์„๊นŒ ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ์—์„œ ์ผ๋ฐ˜์ ์ธ Object๋Š” key-value์Œ์„ ๋Š์ž„ ์—†์ด ์ถ”๊ฐ€ํ•  ์ˆ˜ ์žˆ๋Š” ํ˜•ํƒœ๋กœ ๊ตฌ์„ฑ๋˜์–ด ์žˆ๋‹ค. ๊ทธ๋ž˜์„œ ์‚ฌ์‹ค ์ปฌ๋ ‰์…˜์ด ํ•„์š”ํ•˜์ง€ ์•Š์€ ๊ฒƒ ์ฒ˜๋Ÿผ ๋ณด์ผ ์ˆ˜๋„ ์žˆ๋‹ค. ๊ทธ๋Ÿฌ๋‚˜ ์ด๋”ฐ๊ธˆ์”ฉ object๋กœ ๋ถ€์กฑํ•  ๋•Œ๊ฐ€ ์žˆ๋‹ค. keyโ€ฆ

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Javascript Symbol

Posted on July 18, 2019

Javascript Primitive ๊ธฐ์กด์— ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ๋Š” 6๊ฐ€์ง€์˜ primitive๊ฐ€ ์žˆ์—ˆ๋‹ค. Object string number boolean null undefined ๊ทธ๋Ÿฌ๋‚˜ es6๊ฐ€ ๋“ค์–ด์„œ๋ฉด์„œ ์ด๋ผ๋Š” 7๋ฒˆ์งธ primitive๊ฐ€ ์ถ”๊ฐ€๋˜์—ˆ๋‹ค. Symbol ์ƒˆ๋กœ์šด ์‹ฌ๋ณผ ๊ฐ’์„ ์ƒ์„ฑํ–ˆ๋‹ค. ์ด ์‹ฌ๋ณผ๋กœ ์ƒ์„ฑํ•œ ๊ฐ’์€ ๋ณ€๊ฒฝํ•  ์ˆ˜ ์—†์œผ๋ฏ€๋กœ constโ€ฆ

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javascript event bubbling & capturing

Posted on July 17, 2019

image Javascript Event Capturing Event Capturing์€ ํŠน์ • ์š”์†Œ์—์„œ ์ด๋ฒคํŠธ๊ฐ€ ๋ฐœ์ƒํ–ˆ์„ ๋•Œ, ์ตœ์ƒ์œ„ ์š”์†Œ์—์„œ ๋ถ€ํ„ฐ ์ด๋ฒคํŠธ๋ฅผ ํƒ์ƒ‰ํ•˜์—ฌ ํŠน์ •์š”์†Œ๊นŒ์ง€ ์ฐพ์•„์˜ค๋Š” ์ด๋ฒคํŠธ ์ „ํŒŒ ๋ฐฉ์‹์„ ์˜๋ฏธํ•œ๋‹ค. ์œ„ ์˜ˆ์‹œ์—์„œ ๊ฐ€์žฅ ๋‚ด๋ถ€์˜ elementโ€ฆ

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javascript class

Posted on July 09, 2019

Class ํด๋ž˜์Šค๋Š” ๊ธฐ๋ณธ์ ์œผ๋กœ ์ด๋ ‡๊ฒŒ ์ƒ๊ฒผ๋‹ค. ํŠน์ง• 1. strict ๋ชจ๋“œ์—์„œ ์‹คํ–‰ ๋”ฑํžˆ ๋ฅผ ์„ ์–ธํ•˜์ง€ ์•Š์•„๋„, ํด๋ž˜์Šค์˜ ์ฝ”๋“œ๋Š” ๊ธฐ๋ณธ์ ์œผ๋กœ ๋ชจ๋“œ์—์„œ ์‹คํ–‰๋œ๋‹ค. ๊ทธ๋ ‡๊ฒŒ ๋˜๋ฉด, ๋‹น์—ฐํžˆ ๋ชจ๋“œ์˜ ์—ฌ๋Ÿฌ๊ฐ€์ง€ ํŠน์ง•์„ ์ž๋™์œผ๋กœ ๋”ฐ๋ฅด๊ฒŒ ๋œ๋‹ค.โ€ฆ

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javascript ์ผ๋ฐ˜ ํ•จ์ˆ˜์™€ ํ™”์‚ดํ‘œ ํ•จ์ˆ˜์˜ ์ฐจ์ด

Posted on July 09, 2019

ES6์—์„œ๋ถ€ํ„ฐ ์ƒ๊ธด ์€ ์ผ๋ฐ˜์ ์œผ๋กœ ์˜ ๋ชจ์–‘์„ ํ•˜๊ณ  ์žˆ์œผ๋ฉฐ, ๋™์ž‘๋„ ๋น„์Šทํ•ด๋ณด์ธ๋‹ค. ํ•˜์ง€๋งŒ ์ด ๋‘ ์„ ์–ธ๋ฐฉ์‹์€ ๋‘๊ฐ€์ง€ ๋ถ„๋ช…ํ•œ ์ฐจ์ด๋ฅผ ๊ฐ€์ง€๊ณ  ์žˆ๋‹ค. 1. this์™€ argumentsโ€ฆ

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Intersection Observer

Posted on June 24, 2019

Intersection Observer Intersection Observer๋Š” ์—˜๋ฆฌ๋จผํŠธ๊ฐ€ viewport์— ๋…ธ์ถœ๋˜๊ณ  ์žˆ๋Š”์ง€ ์—ฌ๋ถ€๋ฅผ ํ™•์ธํ•ด์ฃผ๋Š” APIโ€ฆ

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Typescript, React, NextJs, Koa, Styled Component ๋กœ ํ”„๋ก ํŠธ์—”๋“œ ํ™˜๊ฒฝ ๋งŒ๋“ค๊ธฐ

Posted on June 20, 2019

์‚ฌ์šฉํ•œ ์˜คํ”ˆ์†Œ์Šค React ์ž์„ธํ•œ ์„ค๋ช…์€ ์ƒ๋žต ํ•œ๋‹ค Nextjs NextJs ๋ฆฌ์•กํŠธ์—์„œ ์„œ๋ฒ„์‚ฌ์ด๋“œ ๋ Œ๋”๋ง์„ ํ•  ์ˆ˜ ์žˆ๋„๋ก ํ•ด์ฃผ๋Š” ํ”„๋ ˆ์ž„์›Œํฌ๋‹ค. angular๋‚˜ react ๋“ฑ์€ SPA๋ผ์„œ ๋ถˆํŽธํ•œ ์ ์ด ๋”๋Ÿฌ ์žˆ๋Š”๋ฐ, React์—์„œ NextJS๋ฅผ ํ™œ์šฉํ•˜๋ฉด react๋ฅผ ssr(server side renderingโ€ฆ

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Typescript Type, Enum, Partial, Record๋กœ ๊ธ€๋กœ๋ฒŒ ๋ณ€์ˆ˜ ๊ด€๋ฆฌํ•˜๊ธฐ

Posted on June 17, 2019

๊ณ ๋ฏผ์ง€์  Global ๋กœ ๊ด€๋ฆฌํ•˜๋Š” Colorset Red, Blue, Green, Black์ด ์žˆ๋‹ค. ์ด ์ƒ‰๋“ค์€ ๊ฐ๊ฐ ์ง€์ •๋œ ์นผ๋ผ์ฝ”๋“œ๊ฐ€ ์žˆ๋‹ค ๊ทธ๋Ÿฌ๋‚˜ ๋•Œ๋กœ๋Š” ๊ทธ ์ปฌ๋Ÿฌ์ฝ”๋“œ์— ๋งž๊ฒŒ ์•ˆ์“ฐ๋Š” ๊ฒฝ์šฐ๋„ ์žˆ๋‹ค ๊ทธ๋Ÿฌ๋‚˜ ๋•Œ๋กœ๋Š” ์ € ๋„ค๊ฐœ๋ฅผ ๋‹ค ์•ˆ์“ฐ๊ณ  1~3๊ฐœ๋งŒ ์“ฐ๋Š” ๊ฒฝ์šฐ๊ฐ€ ์žˆ๋‹ค. Union types Union Type ์–ด๋–ค ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ์—์„œ ๋ฐ›๋Š” ํŒŒ๋ผ๋ฏธํ„ฐ์˜ ๊ฐ’์„ numberโ€ฆ

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Javascript - Promise

Posted on May 21, 2019

Promise ๋Š” ๋ฐ ์ธ์ˆ˜๋ฅผ ์ „๋‹ฌํ•  ์‹คํ–‰ํ•จ์ˆ˜๋ฅผ ์˜๋ฏธํ•œ๋‹ค. ์‹คํ–‰ํ•จ์ˆ˜๋Š” ์™€ ๋ฅผ ๋ฐ›์•„ ์ฆ‰์‹œ ์‹คํ–‰๋œ๋‹ค. ์‹คํ–‰ํ•จ์ˆ˜๋Š” ๋ณดํ†ต ๋น„๋™๊ธฐ ์ž‘์—…์„ ์‹œ์ž‘ํ•œ ํ›„, ๋ชจ๋“  ์ž‘์—…์„ ๋๋‚ด๋ฉด ๋ฅผ ํ˜ธ์ถœํ•ด์„œ ๋ฅผ ์ดํ–‰ํ•˜๊ณ , ์˜ค๋ฅ˜๊ฐ€ ๋ฐœ์ƒํ•œ ๊ฒฝ์šฐ ๋ฅผ ํ˜ธ์ถœํ•ด ๊ฑฐ๋ถ€๋œ๋‹ค. ๋Š” ๋‹ค์Œ ์ค‘ ํ•˜๋‚˜์˜ ์ƒํƒœ๋ฅผ ๊ฐ€์ง„๋‹ค. ๋Œ€๊ธฐ(pending): ์ดํ–‰๋˜๊ฑฐ๋‚˜ ๊ฑฐ๋ถ€๋˜์ง€ ์•Š๋Š” ์ดˆ๊ธฐ ์ƒํƒœ ์ดํ–‰(fullfiledโ€ฆ

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Javascript - Destructuring Assignment

Posted on May 21, 2019

๊ตฌ์กฐ ๋ถ„ํ•ด ํ• ๋‹น ๊ตฌ์กฐ ๋ถ„ํ•ด ํ• ๋‹น์€ ๋ฐฐ์—ด์ด๋‚˜ ๊ฐ์ฒด์˜ ์†์„ฑ์„ ๋ง๊ทธ๋Œ€๋กœ ๋ถ„ํ•ดํ•˜์—ฌ, ๋ถ„ํ•ด ํ•œ ๊ฐ’์„ ๊ฐœ๋ณ„๋ณ€์ˆ˜์— ๋‹ด์„ ์ˆ˜ ์žˆ๊ฒŒ ๋„์™€์ฃผ๋Š” ํ‘œํ˜„์‹์ด๋‹ค. ๊ฐ์ฒด ๊ตฌ์กฐ ๋ถ„ํ•ด ์—ฌ๊ธฐ์—์„œ //๋Š” ์ „์—ญ๊ฐ์ฒด ์ผ ๊ฒƒ์ด๋‹ค. ๊ฐ์ฒด ๋ฆฌํ„ฐ๋Ÿด ํ‘œ๊ธฐ๋ฒ•๊ณผ JSON์˜ ์ฐจ์ด JSON์€ "key": valueโ€ฆ

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React ๊ณต๋ถ€ํ•˜๊ธฐ 7 - ์ปดํฌ๋„ŒํŠธ ๋ผ์ดํ”„ ์‚ฌ์ดํด

Posted on May 20, 2019

React Component Life Cycle ๋ผ์ดํ”„ ์‚ฌ์ดํด์€ ์ด 10๊ฐ€์ง€๋‹ค. ์ ‘๋‘์‚ฌ๋Š” ์–ด๋–ค ์ž‘์—…์„ ์ž‘๋™ํ•˜๊ธฐ์ „์— ์‹คํ–‰ํ•˜๋Š” ๋ฉ”์†Œ๋“œ๊ฐ€, ๋Š” ์–ด๋–ค ์ž‘์—…์„ ํ•œ ํ›„์— ์‹คํ•ด์˜ค๋””๋Š” ๋ฉ”์„œ๋“œ๋‹ค. ์ด ๋ฉ”์„œ๋“œ๋“ค์€ ์ปดํฌ๋„ŒํŠธ ํด๋ž˜์Šค์—์„œ ๋ฎ์–ด์จ์„œ ์„ ์–ธํ•˜์—ฌ ์‚ฌ์šฉํ•  ์ˆ˜ ์žˆ๋‹ค. ๋ผ์ดํ”„์‚ฌ์ดํด์€ ์ด 3๊ฐ€์ง€ ์นดํ…Œ๊ณ ๋ฆฌ๋กœ ๋‚˜๋ˆŒ ์ˆ˜ ์žˆ๋Š”๋ฐ, , , ๋‹ค. Mount DOMโ€ฆ

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React ๊ณต๋ถ€ํ•˜๊ธฐ 8 - ํ•จ์ˆ˜ํ˜• ์ปดํฌ๋„ŒํŠธ

Posted on May 20, 2019

ํ•จ์ˆ˜ํ˜• ์ปดํฌ๋„ŒํŠธ ํ•จ์ˆ˜ํ˜• ์ปดํฌ๋„ŒํŠธ๋Š” ์ปดํฌ๋„ŒํŠธ์—์„œ ๋ผ์ดํ”„์‚ฌ์ดํด, state ๋“ฑ์˜ ๊ธฐ๋Šฅ์„ ์ œ๊ฑฐํ•œ ์ƒํƒœ์ด๋ฏ€๋กœ ๋ฉ”๋ชจ๋ฆฌ ์‚ฌ์šฉ๋Ÿ‰์ด ๋‹ค๋ฅธ ์ปดํฌ๋„ŒํŠธ์— ๋น„ํ•ด ์ ๋‹ค. ๋”ฐ๋ผ์„œ ์„ฑ๋Šฅ์„ ์ตœ์ ํ™” ํ•˜๊ธฐ ์œ„ํ•ด์„œ๋Š” ์œ„์™€ ๊ฐ™์ด ํ•จ์ˆ˜ํ˜• ์ปดํฌ๋„ŒํŠธ๋ฅผ ๋งŽ์ด ์“ฐ๋Š” ๊ฒƒ์ด ์ข‹๋‹ค.

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React ๊ณต๋ถ€ํ•˜๊ธฐ 6 - ์ปดํฌ๋„ŒํŠธ ๋ฐ˜๋ณต

Posted on May 20, 2019

์ปดํฌ๋„ŒํŠธ ๋ฐ˜๋ณตํ•ด์„œ ์“ฐ๊ธฐ ํŠน๋ณ„ํ•œ ๊ฑฐ๋Š” ์—†์ง€๋งŒ, ์ฝ˜์†”์—์„œ ๊ฐ€ ์—†๋‹ค๋Š” ์—๋Ÿฌ๊ฐ€ ๋ฐœ์ƒํ•œ๋‹ค. ๊ฐ€์ƒ DOM์„ ๋น„๊ตํ•œ๋Š ๊ณผ์ •์—์„œ, Key๊ฐ’์„ ํ™œ์šฉํ•˜์—ฌ ๋ณ€ํ™”๊ฐ€ ์ผ์–ด๋‚˜๋Š”์ง€ ํ™•์ธํ•˜๊ธฐ ๋•Œ๋ฌธ์—, key๊ฐ’์„ ์ง€์ •ํ•ด์ค˜์•ผํ•œ๋‹ค. ์ด์ œ ์—๋Ÿฌ๊ฐ€ ๋‚˜์ง€ ์•Š๋Š”๋‹ค. ๋ณดํ†ต์€ ์ด๋ ‡๊ฒŒ ์ •์ ์ธ ๋ฐ์ดํ„ฐ๋ฅผ ์“ฐ๊ธฐ๋ณด๋‹ค๋Š”, ๋™์ ์ธ ๋ฐ์ดํ„ฐ๋ฅผ ๋” ๋ Œ๋”๋งํ•  ๊ธฐํšŒ๊ฐ€ ๋” ๋งŽ์„ ๊ฒƒ์ด๋‹ค.

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Javascript - Closure

Posted on May 09, 2019

ํด๋กœ์ € ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ๋Š” ์–ด๋–ป๊ฒŒ ๋ณ€์ˆ˜์˜ ์œ ํšจ ๋ฒ”์œ„๋ฅผ ์ •ํ•˜๋Š”๊ฐ€? ์—ฌ๊ธฐ์—์„œ ๋Š” ์ง€์—ญ๋ณ€์ˆ˜ ๊ณผ ํ•จ์ˆ˜ ์„ ์ƒ์„ฑํ–ˆ๋‹ค. ์€ ๋‚ด๋ถ€ํ•จ์ˆ˜์ด๋ฏ€๋กœ, ์—์„œ๋งŒ ์‚ฌ์šฉ์ด ๊ฐ€๋Šฅํ•˜๋‹ค. ์€ ๋ณ„๋„์˜ ์ง€์—ญ๋ณ€์ˆ˜๊ฐ€ ์—†์ง€๋งŒ ๋‚ด๋ถ€ํ•จ์ˆ˜๋Š” ์™ธ๋ถ€ํ•จ์ˆ˜์— ์ ‘๊ทผํ•  ๊ถŒํ•œ์„ ๊ฐ€์ง€๊ณ  ์žˆ์œผ๋ฏ€๋กœ, ์ด ์ •์ƒ์ ์œผ๋กœ ์ถœ๋ ฅ๋  ๊ฒƒ์ด๋‹ค. ๋งŒ์•ฝ nameโ€ฆ

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React ๊ณต๋ถ€ํ•˜๊ธฐ 5 - Reference

Posted on May 09, 2019

Reference (Ref) ํŠน์ • DOM์š”์†Œ์— ์ž‘์—…์„ ํ•˜๊ธฐ ์œ„ํ•ด์„œ id๋ฅผ ๋ถ€์—ฌํ•˜๋Š” ๊ฒƒ ์ฒ˜๋Ÿผ, React์—์„œ DOM์— ์ด๋ฆ„์„ ๋‹ค๋Š” ๋ฐฉ์‹์ด ์žˆ๋Š”๋ฐ ์ด๊ฒƒ์ด ๋ฐ”๋กœ ref (Reference)๋‹ค. ๋ฐ˜๋“œ์‹œ, ์ปดํผ๋„ŒํŠธ ๋‚ด๋ถ€์—์„œ ์‚ฌ์šฉ ์ค‘์š”ํ•˜๊ฒŒ ๋ด์•ผํ•  ๋ถ€๋ถ„์€ ๋ฐ”๋กœ ์—ฌ๊ธฐ ref ์†์„ฑ์„ ์ถ”๊ฐ€ํ•  ๋•Œ๋Š” props๋ฅผ ์„ค์ •ํ•˜๋“ฏ์ด ํ•˜๋ฉด ๋œ๋‹ค. refโ€ฆ

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React ๊ณต๋ถ€ํ•˜๊ธฐ 4 - Event

Posted on May 08, 2019

์ด๋ฒคํŠธ ๋ฆฌ์•กํŠธ์˜ ์ด๋ฒคํŠธ๋Š” ๊ธฐ๋ณธ์ ์œผ๋กœ HTML์˜ ์ด๋ฒคํŠธ์™€ ๋น„์Šทํ•˜์ง€๋งŒ, ์ฃผ์˜์‚ฌํ•ญ์ด ๋ช‡๊ฐ€์ง€ ์žˆ์Šต๋‹ˆ๋‹ค. ์ด๋ฒคํŠธ ๋ช…์€ ์นด๋ฉœ ์ผ€์ด์Šค๋กœ ์ž‘์„ฑํ•ด์•ผ ํ•œ๋‹ค. โ†’ ์ด๋ฒคํŠธ์— ์‹คํ–‰ํ•  ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ ์ฝ”๋“œ๋ฅผ ์ „๋‹ฌํ•˜๋Š” ๊ฒƒ์ด ์•„๋‹ˆ๊ณ , ํ•จ์ˆ˜ํ˜•ํƒœ์˜ ๊ฐ’์„ ์ „๋‹ฌํ•ด์•ผ ํ•œ๋‹ค. DOM์š”์†Œ์—๋งŒ ์„ค์ •ํ•  ์ˆ˜ ์žˆ๋‹ค. Custom Component๋Š” onClickโ€ฆ

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React ๊ณต๋ถ€ํ•˜๊ธฐ 3 - Component

Posted on May 08, 2019

์ปดํฌ๋„ŒํŠธ ๊ธฐ๋ณธ์ ์ธ ์ปดํฌ๋„ŒํŠธ๋ฅผ ๋งŒ๋“ค์–ด ๋ณด์ž. Props ์ปดํฌ๋„ŒํŠธ์˜ ์†์„ฑ์„ ์ค„๋•Œ ์‚ฌ์šฉํ•˜๋Š” ๊ฐ’์ด๋‹ค. ์•„๋Ÿฐ์‹์œผ๋กœ ๋ถ€๋ชจ์—์„œ ๊ฐ’์„ ๋„˜๊ฒจ ์ค„ ์ˆ˜ ์žˆ๋‹ค. ๋˜ํ•œ default๊ฐ’์„ ์„ค์ •ํ•  ์ˆ˜๋„ ์žˆ๋‹ค. ์œ ์˜ํ•  ์ ์€ props์— ์•„๋ฌด๊ฐ’์„ ์•ˆ๋„˜๊ฒจ์ค˜๋„ () ๊ฐ’์€ default ๊ฐ€ ์•„๋‹Œ "" ๊ฐ€ ๋‚˜์˜จ๋‹ค๋Š” ๊ฒƒ์ด๋‹ค. ์™œ๋ƒํ•˜๋ฉด ""๋Š” ๊ธฐ๋ณธ์ ์œผ๋กœ stringโ€ฆ

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React ๊ณต๋ถ€ํ•˜๊ธฐ 2 - JSX

Posted on May 08, 2019

Create-react-app ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ๋กœ ์‹œ์ž‘ app.js์˜ ๊ตฌ์กฐ ์ฝ”๋“œ ์ฒซ์ค„์€ node.js์˜ ๊ธฐ๋Šฅ, ์ฆ‰ react๋ฅผ ๋ถˆ๋Ÿฌ์™€์„œ ๋ชจ๋“ˆํ™” ์‹œํ‚ค๋Š” ๊ฒƒ์ด๋‹ค. ์ด๋ฅผ ๋ฒˆ๋“ค๋งํ•˜๋Š” ์ž‘์—…์€ webpack์—์„œ ์ฒ˜๋ฆฌํ•ด ์ค€๋‹ค. css-loader๋กœ ๋ฅผ, file-loader๋กœ ํŒŒ์ผ์„ (), babel-loader๋กœ es6๋ฅผ esโ€ฆ

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React ๊ณต๋ถ€ํ•˜๊ธฐ 1 - background

Posted on May 08, 2019

๋ฆฌ์•กํŠธ ์š”์•ฝ ๊ธฐ์กด์— ๋งŽ์€ ์ž๋ฐ”์Šคํฌ๋ฆฝํŠธ ๊ธฐ๋ฐ˜ ํ”Œ๊ฒŒ์ž„์›Œํฌ๋“ค์ด ์žˆ์—ˆ๋Š”๋ฐ, ๋Œ€๋ถ€๋ถ„์˜ ํ”„๋ ˆ์ž„์›Œํฌ๋“ค์€ MVC (Model-View-Controller), MVVM(Model-View-View Model), MVW(Model-View-Whatever) ์•„ํ‚คํ…์ณ๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๊ฐœ๋ฐœ๋˜์—ˆ๋‹ค. MVCโ€ฆ

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Computer Vision 01) - Image Representation

Posted on April 01, 2019

Image Representation & Classification Images as Grids of Pixels ๋จผ์ € ์ด๋ฏธ์ง€๋ฅผ ๋ถˆ๋Ÿฌ์˜จ๋‹ค. waymo-gray RGB colorspace waymo waymo-rgb Color Threshold, Bluescreen ํŒŒ๋ž€์ƒ‰ ํฌ๋กœ๋งˆํ‚ค์— ์žˆ๋Š” ์‚ฌ์ง„์„ ํ•ฉ์„ฑํ•˜๋Š” ๊ณผ์ •์ด๋‹ค. image red mask maskโ€ฆ

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Deep Learning 03) - How do neural networks work/learn?

Posted on March 05, 2019

How do neural networks work/learn? ์‹ ๊ฒฝ๋ง์€ ์–ด๋–ป๊ฒŒ ๋™์ž‘ํ•˜๋Š”๊ฐ€? ๋‹ค์–‘ํ•œ ์ •๋ณด๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ ๋ถ€๋™์‚ฐ ๊ฐ€๊ฒฉ์„ ์˜ˆ์ธกํ•˜๋Š” ์ผ์„ ํ•ด๋ณด๋„๋ก ํ•˜์ž. 03 ๊ฐ€์žฅ ์ผ๋ฐ˜์ ์œผ๋กœ ํ•  ์ˆ˜ ์žˆ๋Š” ์ ‘๊ทผ์€, ๊ฐ๊ฐ์˜ ๋ฐ์ดํ„ฐ์— ์ ์ ˆํ•œ ๊ฐ€์ค‘์น˜๋ฅผ ์ ์šฉํ•œ ๊ฐ’์„ ๋ฐ”ํƒ•์œผ๋กœ ๊ฐ€๊ฒฉ์„ ์˜ˆ์ธกํ•˜๋Š” ๊ฒƒ์ด๋‹ค. ์—ฌ๊ธฐ์—๋Š” ์—ฌ๋Ÿฌ๊ฐ€์ง€ ๋ฐฉ์‹์ด ์ ์šฉ๋  ์ˆ˜ ์žˆ๋‹ค. Regressionโ€ฆ

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Deep Learning 02) - Activation Function

Posted on March 05, 2019

Deep Learning 02) Activation Function Activation Function ํ™œ์„ฑํ™” ํ•จ์ˆ˜ 02 ํ™œ์„ฑํ™” ํ•จ์ˆ˜๋Š” ๊ฐ€์ค‘์น˜๊ฐ€ ๋”ํ•ด์ง„ input value๋ฅผ ์–ด๋–ป๊ฒŒ ์ฒ˜๋ฆฌํ•  ๊ฒƒ์ธ์ง€ ๊ฒฐ์ •ํ•˜๋Š” ํ•จ์ˆ˜๋‹ค. ์ด๋Ÿฌํ•œ ํ™œ์„ฑํ™” ํ•จ์ˆ˜์—๋Š” ๋ช‡๊ฐ€์ง€ ์ข…๋ฅ˜๊ฐ€ ์žˆ๋‹ค. 1. Threshold Function threshold-function $$ 1 f x \geqโ€ฆ

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Deep Learning 01) - Neuron

Posted on March 05, 2019

Deep Learning 01) Neuron Neron ๋‰ด๋Ÿฐ์€ ๋”ฅ๋Ÿฌ๋‹์˜ ํ•ต์‹ฌ์ด ๋˜๋Š” ๊ฐœ๋…์ด๋‹ค. ๋‰ด๋ก  ํ•˜๋‚˜ ์ž์ฒด๋กœ๋Š” ๋ณ„๋‹ค๋ฅธ ๊ธฐ๋Šฅ์„ ํ•  ์ˆ˜ ์—†์ง€๋งŒ, ์—ฌ๋Ÿฌ๊ฐœ์˜ ๋‰ด๋Ÿฐ์ด ๋ชจ์—ฌ์•ผ ์ง„์ •ํ•˜๊ฒŒ ๊ธฐ๋Šฅ์„ ํ•  ์ˆ˜ ์žˆ๋‹ค. ์ผ๋‹จ ๋‰ด๋Ÿฐ์˜ ๊ตฌ์กฐ๋ฅผ ์‚ดํŽด๋ณด์ž. neuron ๋‰ด๋Ÿฐ์€ ๋ณด์ด๋Š” ๊ฒƒ์ฒ˜๋Ÿผ n๊ฐœ์˜ input signal์„ ๋ฐ›์•„์„œ output signalโ€ฆ

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Pytorch 09) - Transfer Learning

Posted on February 26, 2019

Pytorch - 09) Transfer Learning Transfer Learning ๊ธฐ์กด์— ๋งŒ๋“ค์–ด์ง„ ๋ชจ๋ธ์„ ์ด์šฉํ•˜์—ฌ, ์ƒˆ๋กœ์šด ๋ชจ๋ธ์ด ์กฐ๊ธˆ๋” ๋น ๋ฅด๊ฒŒ ํ•™์Šตํ•˜๊ณ  ์˜ˆ์ธก์„ ๋” ๋†’์ด๋Š” ๋ฐฉ๋ฒ•์ด๋‹ค. ์‹ค์งˆ์ ์œผ๋กœ, CNN์„ ์ฒ˜์Œ๋ถ€ํ„ฐ ํ•™์Šต์‹œํ‚ค๋Š” ์ผ์€ ๋งŽ์ง€ ์•Š๋‹ค. ์ด ๋ชจ๋ธ์€ ๊ณ ๋ คํ•ด์•ผํ•  ์‚ฌํ•ญ์ด ๋งŽ๊ณ , (Layer์˜ ์ˆซ์ž, ํ™œ์„ฑํ™”ํ•จ์ˆ˜์˜ ์ข…๋ฅ˜, ๊ธฐํƒ€ hyper parameterโ€ฆ

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Pytorch 08) - CIFAR 10 ํ•™์Šต

Posted on February 25, 2019

Pytorch - 08) CIFAR 10 CIFAR 10 ๋Š” ์—ด๊ฐ€์ง€ ๋‹จ์–ด๋ณ„ ์ด๋ฏธ์ง€๊ฐ€ ์žˆ๋Š” ๋ฐ์ดํ„ฐ ์…‹์ด๋‹ค. ๊ธฐ์กด์— ์†๊ธ€์”จ๋ฅผ ๋ถ„๋ฅ˜ํ•˜๋Š” ๊ฒƒ ๋ณด๋‹ค๋Š” ํ™•์‹คํžˆ ์–ด๋ ค์šด ์ž‘์—…์ด ๋  ๊ฒƒ์ด๋‹ค. CIFAR10 ์ „์ฒ˜๋ฆฌ ์ž‘์—… CIFAR10-1 Optimizer ์™€ Criterion training 1st try LeNetโ€ฆ

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Pytorch 07) - Convolutional Neural Network (2)

Posted on February 21, 2019

Pytorch - 07) Convolutional Neural Network (2) ์ด๋ฒˆ์—๋Š” ์ฝ”๋“œ๋กœ ๊ตฌํ˜„ํ•ด๋ณด์ž. ๋จผ์ € ์ฒซ๋ฒˆ์งธ conv1์• ์„œ๋Š” 1๊ฐœ์˜ ํ•„ํ„ฐ, 20๊ฐœ์˜ ํŠน์ง•์„ ์ถ”์ถœ ํ•ด ๋‚ผ ๊ฒƒ์ด๋‹ค. ํ•„ํ„ฐ๋Š” 5x5 ํฌ๊ธฐ๋กœ, ์ด๋ฏธ์ง€๊ฐ€ ๊ทธ๋ฆฌ ํฌ์ง€ ์•Š์œผ๋ฏ€๋กœ stride๋Š” 1๋กœ ํ• ๊ฒƒ์ด๋‹ค. ๋‘๋ฒˆ conv2๋Š” ์ž…๋ ฅ๊ฐ’์ด 20์ด๊ณ  (์ด์ „ conv์˜ ouput), 5โ€ฆ

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Pytorch 06) - Convolutional Neural Network (1)

Posted on February 21, 2019

Pytorch - 06) Convolutional Neural Network (1) Convolutional Neural Network (CNN) Fully Connected Layer์˜ ๋ฌธ์ œ์  Convolutional Neural Network (์ดํ•˜ CNNโ€ฆ

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Pytorch 05) - Image Recognition

Posted on February 21, 2019

Pytorch - 05) Image Recognition ๋งˆ์ง€๋ง‰์œผ๋ฃจ๋‹ค๊ฐ€ ์†๊ธ€์”จ ๋ถ„๋ฅ˜ํ•ด๋ณด๋Š” ์‹ค์Šต์„ ํ•ด๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค. Dataset ํ…์„œ๋ฅผ ๋ฐ›์•„์„œ image๋กœ ๋ณด์—ฌ์ฃผ๋Š” ๋ฉ”์†Œ๋“œ๋ฅผ ๋งŒ๋“ค์ž. ๋ง›๋ณด๊ธฐ๋กœ ์ด๋ฏธ์ง€๋ฅผ ํ•œ๋ฒˆ ๋ณด์ž. image-recognition1 Model hidden layer2๊ฐœ์—, linear์™€ ํ™œ์„ฑํ™” ํ•จ์ˆ˜๋กœ relu๋ฅผ ์‚ฌ์šฉํ–ˆ๋‹ค. sigmoidโ€ฆ

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Pytorch 04) - Deep Nueral Network

Posted on February 20, 2019

Pytorch - 04) Deep Neural Network Deep Neural Network ์ด์ „ Perceptron์—์„œ ํ•œ๊ฐœ์˜ Perceptron์œผ๋กœ๋Š” XOR์—ฐ์‚ฐ์„ ํšจ๊ณผ์ ์œผ๋กœ ๋ถ„๋ฅ˜ํ•˜์ง€ ๋ชปํ•œ๋‹ค๋Š” ๊ฒƒ์„ ์ด์•ผ๊ธฐ ํ–ˆ์—ˆ๋‹ค. perceptron-xor ๊ทธ๋ฆฌ๊ณ  ์ด๋Ÿฐ XOR ์ด ์•„๋‹ˆ๋”๋ผ๋„, ์„ ํ˜•์ด ์•„๋‹Œ ํ˜•ํƒœ์˜ ๋ฐ์ดํ„ฐ๋ฅผ ๋ถ„๋ฅ˜ ํ•  ์ˆ˜ ์—†์„ ๊ฒƒ์ด๋‹ค. deep-neuralโ€ฆ

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Pytorch 03) - Perceptron

Posted on February 19, 2019

Pytorch - 03) Perceptron Perceptron (๋งˆ์ง€๋ง‰ ์ •๋ฆฌ๊ฐ€ ๋˜๊ธธ ๋ฐ”๋ผ๋ฉฐ) Perceptron์€ ์šฐ๋ฆฌ ๋‘๋‡Œ (๋‰ด๋Ÿฐ)์˜ ์ธ์ง€๋Šฅ๋ ฅ์„ ๋ชจ๋ฐฉํ•˜๋„๋ก ๋งŒ๋“  ์ธ์œ„์ ์ธ ๋„คํŠธ์›Œํฌ๋‹ค. perceptron ํผ์…‰ํŠธ๋ก ์€ ๋‹ค์ˆ˜์˜ ์‹ ํ˜ธ๋ฅผ ๋ฐ›์•„์„œ, ํ•˜๋‚˜์˜ ์‹ ํ˜ธ๋ฅผ ์ถœ๋ ฅํ•œ๋‹ค. ์—ฌ๊ธฐ์—์„œ x๋Š” ์ž…๋ ฅ๊ฐ’์ด๊ณ  w๋Š”, ๊ฐ€์ค‘์น˜๋ผ๊ณ  ๋ถ€๋ฅด๋Š” weightโ€ฆ

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Pytorch 02) - Linear Regression

Posted on February 19, 2019

Pytorch - 02) Linear Regression Linear Regression Linear Regression์ด ํ•œ๊ตญ๋ง๋กœ ๋ญ์˜€๋”๋ผ? ๋ฐ์ดํ„ฐ์…‹ ๋งŒ๋“ค๊ธฐ ๋Œ€์ถฉ ๋ญ”๊ฐ€ ์žˆ์–ด๋ณด์ด๋Š” ๋ฐ์ดํ„ฐ์…‹์„ ๋งŒ๋“ค์ž. lr1 nn.Linear๋Š” $$y = xA^{T} + b$$ ํŒŒ๋ผ๋ฏธํ„ฐ๋ฅผ ์‚ดํŽด๋ณด๋ฉด ์ด๋ ‡๊ฒŒ weight์™€ biasโ€ฆ

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Pytorch 01) - Tensor

Posted on February 19, 2019

Pytorch - 01) Tensor Tensor ์ด์ œ๋Š” ๋” ์ด์ƒ ๊ธฐ์ดˆ๋ฅผ ๋‹ค๋ฃจ์ง€ ์•Š๊ฒ ๋‹ค. (๋งˆ์ง€๋ง‰ ๊ธฐ์ดˆ ๊ณต๋ถ€) exp sin n์ฐจ์› ๋ฐฐ์—ด matmul ๊ณผ @ ์€ ์„œ๋กœ ๊ณฑํ•  ์ˆ˜ ์žˆ๋Š” ํฌ๊ธฐ์˜ ๋งคํŠธ๋ฆญ์Šค๋ฅผ ๊ณฑํ•˜๋Š” ์‹์ด๋‹ค. ๊ณ ๋“ฑํ•™๊ต๋•Œ ํ–‰๋ ฌ ์—ด์‹ฌํžˆ ํ•˜๊ธฐ๋ฅผ ์ž˜ํ–ˆ๋‹ค. autograd pytorch์˜ ์žฅ์ ์€ ์ž๋™๋ฏธ๋ถ„(autograd)์„ ์ง€์›ํ•œ๋‹ค๋Š” ์ ์ด๋‹ค. $$x=โ€ฆ

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AI Programming with Python Nanodegree ๋

Posted on February 17, 2019

AI Programming with Python Nanodegree๋ฅผ ๋๋ƒˆ์Šต๋‹ˆ๋‹ค. complete Pytorch๋ฅผ ๋ณธ๊ฒฉ์ ์œผ๋กœ ๋ฐฐ์šฐ๊ธฐ ์œ„ํ•ด์„œ ํฐ ๋ง˜๋จน๊ณ  ์ˆ˜๊ฐ•ํ•œ ์ˆ˜์—…์ธ๋ฐ, pytorch๊ฐ€ ์ •์ž‘ ์–ผ๋งˆ ์—†์–ด์„œ ๋งฅ์ด ์ข€ ๋น ์กŒ๋„ค์š”. ๊ทธ๋ž˜๋„ ๋” ๊ณต๋ถ€ํ•˜๋Ÿฌ ๊ฐ€๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค. (์ด์ด)

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pytorch - Flower Classification

Posted on February 15, 2019

pytorch๋ฅผ ์ด์šฉํ•ด์„œ ๊ฝƒ์ด๋ฏธ์ง€๋ฅผ ๊ตฌ๋ณ„ํ•ด๋ณด๋„๋ก ํ•˜์ž. ์—ฌ๊ธฐ์—์„œ ํ™œ์šฉํ•  ๋ฐ์ดํ„ฐ์…‹์€ ์ด๊ฑฐ๋‹ค. ์ด 102์ข…๋ฅ˜์˜ ๊ฝƒ์ด ์žˆ๊ณ , ๊ฐ๊ฐ ์—ฌ๋Ÿฌ๊ฐœ์˜ ์ด๋ฏธ์ง€๊ฐ€ ์žˆ๋‹ค. ๋ฐ์ดํ„ฐ์…‹์„ ๋‹ค์šด๋กœ๋“œ ํ•˜๋ฉด train, valid, test๋กœ ๋‚˜๋ˆ ์ ธ ์žˆ๊ณ  ์ด๋ฅผ ํ™œ์šฉํ•ด์„œ ๊ฝƒ์„ ๊ตฌ๋ณ„ํ•ด๋ณด๋ ค๊ณ  ํ•œ๋‹ค.โ€ฆ

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์—…๋ฌด ์ž๋™ํ™” (1) - ๊ตฌ๊ธ€ ์Šคํ”„๋ ˆ๋“œ ์‹œํŠธ API ํ™œ์šฉํ•˜๊ธฐ

Posted on February 14, 2019

๊ตฌ๊ธ€ ์Šคํ”„๋ ˆ๋“œ ์‹œํŠธ๋ฅผ ํŒŒ์ด์ฌ์—์„œ ์กฐ์ž‘ํ•ด๋ณด์ž. ๋‚ด๊ฐ€ ํ• ์ผ์€ 1. ์Šคํ”„๋ ˆ๋“œ์‹œํŠธ๋ฅผ ์ฝ๊ณ  2. ์Šคํ”„๋ ˆ๋“œ์‹œํŠธ์— ์“ฐ๋Š” ๋‘๊ฐ€์ง€ ์ž‘์—…์ด๋‹ค. ๊ตฌ๊ธ€ docs์— ์ ‘๊ทผํ•˜๋Š” ๋ฐฉ๋ฒ•์€ ๋‘๊ฐ€์ง€์ธ๋ฐ, ํ•œ๊ฐ€์ง€๋Š” oauth2๊ธฐ๋ฐ˜ ์ธ์ฆ๊ณผ, ๋‹ค๋ฅธ ํ•œ๊ฐ€์ง€๋Š” apikey๋ฐฉ์‹ ์ธ์ฆ์ด๋‹ค. apikey ์ธ์ฆ ๋ฐฉ์‹์€ ์š”์ฒญ์‹œ์— parameter๋กœ api keyโ€ฆ

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pytorch - fashion MNIST ๋ถ„๋ฅ˜ ์‹ค์Šต

Posted on February 13, 2019

pytorch๋ฅผ ํ™œ์šฉํ•ด์„œ ์˜ท ์ด๋ฏธ์ง€๋ฅผ ๊ตฌ๋ณ„ํ•˜๋Š” ์˜ˆ์ œ๋ฅผ ํ•ด๋ดค์—ˆ๋Š”๋ฐ, ๋‹ค์‹œ ํ•œ๋ฒˆ ๋ณต์Šตํ•˜๋Š” ์ฐจ์›์—์„œ ๊ธฐ๋ณธ์ ์ธ ๊ธฐ๋Šฅ์œผ๋กœ ํ•ด๋ณด๋ ค๊ณ  ํ•œ๋‹ค. 1. ๋ฐ์ดํ„ฐ์…‹ ์ค€๋น„ ๋จผ์ € ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ›๊ธฐ์ „์—, ํ•ด๋‹น ๋ฐ์ดํ„ฐ๋ฅผ torch tensor๋กœ ๋ฐ”๊พธ๊ณ , Normalizeํ•  ์ˆ˜ ์žˆใ……๋Š” transform์„ ์ค€๋น„ํ–ˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ๊ตณ์ด test set๊ณผ train setโ€ฆ

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Numpy ๊ธฐ๋ณธ์ ์ธ ๊ธฐ๋Šฅ ์ •๋ฆฌ

Posted on February 11, 2019

๊ท€์ฐฎ์•„์„œ github gist๋กœ...

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Pandas ๊ธฐ๋ณธ์ ์ธ ๊ธฐ๋Šฅ ์ •๋ฆฌ

Posted on February 11, 2019

์ด๊ฒƒ๋„ ๊ท€์ฐฎ์•„์„œ github gist๋กœ...

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Pytorch (3-1) - CNN: ๊ณค์ถฉ ์ด๋ฏธ์ง€ ๋ถ„๋ฅ˜ํ•˜๊ธฐ

Posted on January 30, 2019

pytorch์—์„œ ์ฃผ๋Š” ๊ณค์ถฉ ์ด๋ฏธ์ง€๋ฅผ ๋ถ„๋ฅ˜ํ•˜๋Š” ์ž‘์—…์„ ํ•ด๋ณด๋ ค๊ณ  ํ•œ๋‹ค. ๋ฒŒ๊ณผ ๊ฐœ๋ฏธ ์ด๋ฏธ์ง€๊ฐ€ ์žˆ๋Š”๋ฐ, ๊ฐ๊ฐ์˜ ์ด๋ฏธ์ง€๋ฅผ ์ž ๊น ์‚ดํŽด๋ณด๋ฉด ant1 ant2 ant3 ant4 ant5 ์ด๋ฏธ์ง€๋ฅผ ๋ถ„์„ํ•œ๋‹ค. RGBโ€ฆ

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Pytorch (3-2) - CNN: Convolutional Neural Network

Posted on January 30, 2019

์•ž์„œ CNN๋„คํŠธ์›Œํฌ๋ฅผ ์ง„ํ–‰ํ•˜๋ฉด์„œ ๋ชจ๋ฅด๋Š” ๋ถ€๋ถ„์ด ์ข€ ์žˆ์–ด์„œ, ์ด๋ก ์ ์ธ ์ธก๋ฉด์„ ์ข€๋” ๊ฐ•์กฐํ•ด์„œ ๊ธ€์„ ์จ๋ณด๋ ค๊ณ  ํ•œ๋‹ค. ๊ตฌ์กฐ ์ผ๋‹จ ์ค‘๊ฐ„์ธต์ด Convolutional Layer, Pooling Layer, Fully-connted Layer๋กœ ๊ตฌ์„ฑ๋˜์–ด ์žˆ๋‹ค. ๊ทธ๋ฆฌ๊ณ  ๋งˆ์ง€๋ง‰์—” Dropouut Layer๋ฅผ ๋„ฃ๋Š” ๊ฒฝ์šฐ๋„ ์žˆ๊ณ , Softmaxโ€ฆ

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Pytorch (3) - ํ•ฉ์„ฑ๊ณฑ์‹ ๊ฒฝ๋ง (CNN - Convolutional Nerual Network)

Posted on January 29, 2019

ํ•ฉ์„ฑ๊ณฑ์‹ ๊ฒฝ๋ง(CNN - Convolutaional Neural Network, ์ดํ•˜ CNN)์€ ๋ง๊ทธ๋Œ€๋กœ, ํ•ฉ์„ฑ๊ณฑ ์—ฐ์‚ฐ์„ ์‚ฌ์šฉํ•˜๋Š” ์ธ๊ณต์‹ ๊ฒฝ๋ง์˜ ํ•œ ์ข…๋ฅ˜๋‹ค. Convolution์„ ํ™œ์šฉํ•˜๋ฉด 3์ฐจ์› ๋ฐ์ดํ„ฐ์˜ ๊ณต๊ฐ„์  ์ •๋ณด๋ฅผ ์œ ์ง€ํ•œ ์ƒํƒœ๋กœ ๋‹ค์Œ ๋ ˆ์ด์–ด๋กœ ๋ณด๋‚ด๋Š” ๊ฒƒ์ด ๊ฐ€๋Šฅํ•˜๋‹ค. CN Nโ€ฆ

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Pytorch (2-4) - ์ด์ƒ ๋‚ ์”จ ํƒ์ง€

Posted on January 28, 2019

๋‹ค์ธต ํผ์…‰ํŠธ๋ก  ๋งˆ์ง€๋ง‰ ์˜ˆ์ œ๋กœ ์ด์ƒ ๋‚ ์”จ ํƒ์ง€๋ฅผ ์ง„ํ–‰ํ•ด๋ณด์ž. 2011๋…„ 1์›” 1์ผ ๋ถ€ํ„ฐ 2016๋…„ 12์›” 31์ผ๊นŒ์ง€ ์„œ์šธ์‹œ์˜ ์ผ ํ‰๊ท  ๊ธฐ์˜จ๋ฐ์ดํ„ฐ๋ฅผ ํ™œ์šฉํ•ด ๋ณธ๋‹ค. ์—ฌ๊ธฐ์—์„œ ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ›์„ ์ˆ˜ ์žˆ๋‹ค. seoul-temperature weatherโ€ฆ

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Pytorch (2-3) - ๋‰ด์Šค ์นดํ…Œ๊ณ ๋ฆฌ ๋ถ„๋ฅ˜ํ•˜๊ธฐ

Posted on January 28, 2019

๋‰ด์Šค ๋ง๋ญ‰์น˜๋ฅผ ๋‹ค์šด๋กœ๋“œ ๋ฐ›์•„์„œ ๋ถ„์„ํ•ด๋ณด์ž. ๋ง๋ญ‰์น˜๋Š” ์—ฌ๊ธฐ์—์„œ ๋ฐ›์„ ์ˆ˜ ์žˆ๋‹ค. ๊ณผ๊ฑฐ ๋‰ด์Šค ๋ฐ์ดํ„ฐ๋ฅผ ๋‹ค์šด๋กœ๋“œํ•ด์„œ, ์–ด๋–ค ์นดํ…Œ์ฝ”๋ฆฌ์ธ์ง€ ๋ถ„๋ฅ˜ํ•˜๋Š” ํ•™์Šต์„ ์ง„ํ–‰ํ•ด๋ณด์ž. ๋จผ์ € ๊ตฌ๊ธ€๋“œ๋ผ์ด๋ธŒ์— ํ•ด๋‹น ํŒŒ์ผ์„ ์—…๋กœ๋“œํ•ด์„œ ์ง„ํ–‰ํ–ˆ๋‹ค. ๋ฌผ๋ก  ์•„๋ž˜์™€ ๊ฐ™์€ ์ฝ”๋“œ๋กœ colab dockerโ€ฆ

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Pytorch (2-2) - ์† ๊ธ€์”จ ๋ถ„๋ฅ˜ํ•˜๊ธฐ

Posted on January 27, 2019

์†๊ธ€์”จ ๋ถ„๋ฅ˜ํ•˜๊ธฐ (MNIST) ๋จธ์‹ ๋Ÿฌ๋‹์˜ ๋‹จ๊ณจ ์ฃผ์ œ๋‹ค. ์†๊ธ€์”จ๋ฅผ ๋ถ„๋ฅ˜ํ•ด๋ณด์ž. ์ด์ „ ๋ฐ์ดํ„ฐ์™€ ๋‹ค๋ฅธ ์ ์ด๋ผ๊ณ  ํ•œ๋‹ค๋ฉด, ์ด์ „ ๋ฐ์ดํ„ฐ๋Š” ํ‘œ ํ˜•์‹์ด์—ˆ์ง€๋งŒ, ์ด์ œ๋Š” ์ด๋ฏธ์ง€ ํ˜•์‹์œผ๋กœ ๊ตฌ์„ฑ๋˜์–ด ์žˆ๋‹ค. ๋ฐ์ดํ„ฐ๋ฅผ ๊ฐ€์ ธ์˜ค์ž. ๊ทผ๋ฐ ์–ด์ฐŒ๋œ ์ผ์ธ์ง€, ๋ฐ์ดํ„ฐ๋ฅผ ๊ฐ€์ ธ์˜ค๋Š”๋ฐ ๊ณ„์†ํ•ด์„œ ์—ฌ๋ฃฝ๋ฐ ์žˆ์–ด์„œ ๋‹ค๋ฅธ ๋ฐฉ๋ฒ•์„ ์‚ฌ์šฉํ•˜์˜€๋‹ค. ์—ฌ๊ธฐ์—๋Š” ๋‹ค์Œ๊ณผ ๊ฐ™์€ ํ•„๋“œ๊ฐ€ ์žˆ๋‹ค. COL_NAMESโ€ฆ

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Pytorch (1) - ํผ์…‰ํŠธ๋ก  ์•Œ๊ณ ๋ฆฌ์ฆ˜๊ณผ ์‹ ๊ฒฝ๋ง ์•Œ๊ณ ๋ฆฌ์ฆ˜

Posted on January 27, 2019

ํผ์…‰ํŠธ๋ก  ์•Œ๊ณ ๋ฆฌ์ฆ˜ ํผ์…‰ํŠธ๋ก  ์•Œ๊ณ ๋ฆฌ์ฆ˜์€ ๋จธ์‹ ๋Ÿฌ๋‹ ๊ธฐ๋ฒ• ์ค‘ ์ง€๋„ํ•™์Šต ๊ธฐ๋ฒ•์ด์ž ๋ถ„๋ฅ˜ ์•Œ๊ณ ๋ฆฌ์ฆ˜์— ์†ํ•œ๋‹ค. neuron-and-perceptron ๊ฐ๊ฐ์˜ input์— ์ž…๋ ฅ๊ฐ’๊ณผ ๊ฐ€์ค‘์น˜๋ฅผ ๊ณฑํ•œ ๊ฐ’์„ ํ•ฉํ•œ ๋‹ค์Œ, ๋ฐ”์ด์–ด์Šค (=โ€ฆ

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Pytorch (2-1) - ๋‹ค์ธต ํผ์…‰ํŠธ๋ก 

Posted on January 27, 2019

์ „์—๋Š” ์‹ ๊ฒฝ๋ง์—์„œ ์ค‘๊ฐ„์ธต์„ ํ•˜๋‚˜๋กœ๋งŒ ํ–ˆ์ง€๋งŒ, ์ด ์ค‘๊ฐ„์ธต์„ ์—ฌ๋Ÿฌ๊ฐœ๋กœ ๋Š˜๋ฆฐ ๊ฒƒ์„ ์‹ฌ์ธต์‹ ๊ฒฝ๋ง (deep neural network) ๋ผ๊ณ  ํ•œ๋‹ค. ๋ฒŒ์จ ๋ถ€ํ„ฐ ๋ญ”๊ฐ€ ์žˆ์–ด๋ณด์ธ๋‹ค. ์ด๋Š” ๋”ฅ๋Ÿฌ๋‹์—์„œ ์ฃผ์š” ๋งค์ปค๋‹ˆ์ฆ˜์ด๋‹ค. ์‹ ๊ฒฝ๋ง๊ณผ ์‹ฌ์ธต ์‹ ๊ฒฝ๋ง ๋ชจ๋‘ ํผ์…‰ํŠธ๋ก ์„ ์—ฌ๋Ÿฌ๊ฐœ ์กฐํ•ฉํ•ด์„œ ๊ตฌ์„ฑํ•œ ๊ฒƒ์œผ๋กœ, ๋‹ค์ธต ํผ์…‰ํŠธ๋ก  (multilayer perceptron, MLPโ€ฆ

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Step by Step machine laerning - 05

Posted on December 17, 2018

Training Models ์ •๊ทœ ๋ฐฉ์ •์‹์„ ํ™œ์šฉํ•œ ์„ ํ˜• ํšŒ๊ท€ ํ…Œ์ŠคํŠธ ์šฉ์œผ๋กœ ๋ฐ์ดํ„ฐ๋ฅผ ๋งŒ๋“ค์–ด ๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค. training-models-1 ์œ„์—์„œ $$y = 4+ 3x1 + Gaussian Noise$$ ๋กœ ์ƒ์„ฑํ•ด์„œ $$\theta0=4$$ ์™€ $$\theta1=3$$๋ฅผ ๊ธฐ๋Œ€ํ–ˆ์ง€๋งŒ, ์‹ค์ œ๋กœ๋Š” $$\theta0=4.325$$ ์™€ $$\theta_1=2.77โ€ฆ

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IBM๊ณผ maersk๊ฐ€ ๊ธ€๋กœ๋ฒŒ ์šด์†ก์šฉ ๋ธ”๋ก์ฒด์ธ ํŒŒํŠธ๋„ˆ๋ฅผ ์ฐพ๋Š”๋ฐ ์–ด๋ ค์›€์„ ๊ฒช๊ณ  ์žˆ์–ด

Posted on December 15, 2018

์„œ๋กœ ๊ฒฝ์Ÿํ•˜๋Š” ๊ธฐ์—…๋“ค์ด ํ•œ ํŒ€์œผ๋กœ ํ•จ๊ป˜ ์ผํ•˜๋„๋ก ํ•˜๋Š” ๊ฒƒ๋“€ ์–ด๋ ต์ง€๋งŒ, ๊ทธ ๊ฒฝ์Ÿ์ž๋“ค ์ค‘ ํ•œ ๊ตฌ์„ฑ์›์ด ๊ทธ ํŒ€์„ ์†Œ์œ ํ•  ๋•Œ๋Š” ํŠนํžˆ ๊นŒ๋‹ค๋กญ๋‹ค. ๊ฑฐ๋Œ€ ํ•ด์šดํšŒ์‚ฌ์ธ ๋จธ์Šคํฌ์™€ ๊ธฐ์ˆ  ์ œ๊ณต์—…์ฒด์ธ IBM์€ ๊ณต๊ธ‰๋ง์„ ์œ„ํ•œ DLT(Distributed Ledger Technology) ํ”Œ๋žซํผ์ธ TradeLens์™€ ์ด ๋ฌธ์ œ์™€ ์”จ๋ฆ„ํ•˜๊ณ  ์žˆ๋‹ค. ์•ฝ 1โ€ฆ

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npm 'event-stream' ํŒจํ‚ค์ง€, ๋น„ํŠธ์ฝ”์ธ ์ง€๊ฐ‘์„ ๋…ธ๋ฆฌ๋Š” ์•…์„ฑ์ฝ”๋“œ์— ๊ฐ์—ผ

Posted on November 30, 2018

Malicious code in npm โ€˜event-streamโ€™ package targets a bitcoin wallet and causes 8 million downloads in two months ์›๋ฌธ ์ง€๋‚œ์ฃผ ์บ˜๋ฆฌํฌ๋‹ˆ์•„ ์ฃผ CSUF ๋Œ€ํ•™์˜ ์ปดํ“จํ„ฐ ์‚ฌ์ด์–ธ์Šค ์ „๊ณต์ธ Ayrton Sparling๋Š”, ์ธ๊ธฐ์žˆ๋Š” npm ํŒจํ‚ค์ง€์ธ event-streamโ€ฆ

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Step by Step machine laerning - 03

Posted on November 23, 2018

Classification 2 ROC ์ปค๋ธŒ ROC ์ปค๋ธŒ๋Š” Binary Classification์—์„œ ๊ฐ€์žฅ ์ž˜ ์‚ฌ์šฉํ•˜๋Š” ๊ฒ€์ฆ๊ธฐ๋‹ค. ์™ผ์ชฝ ์œ„๋กœ ๊ทธ๋ž˜ํ”„๊ฐ€ ์ƒ์Šนํ•ด ์žˆ์„ ์ˆ˜๋ก (์šฐํ•˜๋‹จ ๋ฉด์ ์ด ๋„“์„ ์ˆ˜๋ก) ์ข‹์€ ๋ถ„๋ฅ˜๊ธฐ๋ผ๊ณ  ํ•  ์ˆ˜ ์žˆ๋‹ค. ml-2-3.png ์ด๋Ÿฐ ๊ทธ๋ž˜ํ”„๊ฐ€ ์•„๋‹ˆ๊ณ , ์ ์ˆ˜๋ฅผ ๋ณด๊ณ  ์‹ถ๋‹ค๋ฉด ์ด ROC ์ปค๋ธŒ๋ฅผ ํ™œ์šฉํ•˜์—ฌ ์™€ ๋น„๊ตํ•ด๋ณด์ž. ml-2-4.pngโ€ฆ

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๊ฒฐ์ œ ์ˆ˜๋‹จ์œผ๋กœ์„œ ๋น„ํŠธ์ฝ”์ธ ์‚ฌ์šฉ์ด ์ง€์†์ ์œผ๋กœ ๊ฐ์†Œ ์ค‘

Posted on November 22, 2018

Bitcoin for payments a distant dream as usage dries up ์›๋ฌธ ๋””์ง€ํ„ธ ํ™”ํ๊ฐ€ ์ง€๋ถˆ ํ†ตํ™”์˜ ๊ธฐ๋ณธ ๊ธฐ๋Šฅ ์ค‘ ํ•˜๋‚˜์ธ ์•ˆ์ •์„ฑ์„ ์ถฉ์กฑํ–ˆ์Œ์—๋„ ๋ถˆ๊ตฌํ•˜๊ณ , ์ƒ์—…์  ์ง€๋ถˆ ์ˆ˜๋‹จ์œผ๋กœ์„œ์˜ ๋น„ํŠธ ์ฝ”์ธ์˜ ์‚ฌ์šฉ์–‘์€ ์˜ฌํ•ด ๊ธ‰๊ฒฉํžˆ ๊ฐ์†Œํ–ˆ๋‹ค. ๋ธ”๋ก์ฒด์ธ ์—ฐ๊ตฌ์†Œ์ธ Chainalysisโ€ฆ

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๋ถ„์‚ฐ์›์žฅ ๊ธฐ์ˆ ์€ ์‚ฌ์šฉํ•˜๊ธฐ ์–ด๋ ต๋‹ค

Posted on November 21, 2018

TransferWise Chairman: Distributed Ledger Technology Is Very Hard To Use ์›๋ฌธ ๋น„ํŠธ์ฝ”์ธ๊ณผ ๋‹ค๋ฅธ ๋””์ง€ํ„ธ ์ž์‚ฐ์„ ์ง€๋ฐฐํ•˜๋Š” ๋ธ”๋ก์ฒด์ธ ๊ธฐ์ˆ ์€ ์„œ์„œํžˆ, ๊ทธ๋Ÿฌ๋‚˜ ๊พธ์ค€ํžˆ ์ฃผ๋ฅ˜ ๊ธˆ์œต์œผ๋กœ ์ง„์ถœํ•˜๊ณ  ์žˆ์ง€๋งŒ, ์ผ๋ถ€ ๊ธˆ์œต ๊ธฐ๊ด€๋“ค์€ ์ž ์žฌ๋ ฅ์— ๋Œ€ํ•ด ํ™•์‹ ํ•˜์ง€ ๋ชปํ•˜๊ณ  ์žˆ๋‹ค. ๋Ÿฐ๋˜์— ๋ณธ์‚ฌ๋ฅผ ๋‘” ๊ฒฐ์ œ ํ”Œ๋žซํผ์ธ TransferWiseโ€ฆ

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๋ธ”๋ก์ฒด์ธ๊ณผ ๋ถ„์‚ฐ์›์žฅ ๊ธฐ์ˆ ์€ ์–ด๋–ป๊ฒŒ ๋‹ค๋ฅธ๊ฐ€?

Posted on November 19, 2018

Hereโ€™s the difference between blockchain and distributed ledger technology ์›๋ฌธ ๋ธ”๋ก์ฒด์ธ(Blockchainโ€ฆ

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Step by Step machine laerning - 02

Posted on November 16, 2018

Classification MNIST๋Š” ๊ฐ ์ˆซ์ž๋ฅผ ์†์œผ๋กœ ์“ด ์ด๋ฏธ์ง€๋ฅผ ๋ชจ์•„๋†“์€ ๋ฐ์ดํ„ฐ ์…‹์ž…๋‹ˆ๋‹ค. ์ด ๋ฐ์ดํ„ฐ ์…‹์„ ํ•™์Šต์‹œ์ผœ์„œ, ์ด ์†๊ธ€์”จ๊ฐ€ ๊ณผ์—ฐ ์ˆซ์ž ๋ช‡์„ ์˜๋ฏธํ•˜๋Š”์ง€ ํŒ๋ณ„ ํ•  ์ˆ˜ ์žˆ๋„๋ก ํ•™์Šต์‹œ์ผœ ๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค. 1. ๋ฐ์ดํ„ฐ ๋ถˆ๋Ÿฌ์˜ค๊ธฐ ์›๋ž˜๋Œ€๋กœ ๋ผ๋ฉด, sklearnโ€ฆ

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๋น„ํŠธ์ฝ”์ธ ์บ์‰ฌ ํ•˜๋“œ ํฌํฌ์— ๊ด€ํ•œ ๋…ผ์Ÿ

Posted on November 16, 2018

What you need to know about the controversial Bitcoin Cash hard fork ์›๋ฌธ ํ˜„์žฌ ๋น„ํŠธ์ฝ”์ธ์บ์‹œ๋Š” ์›๋ž˜ ๋น„ํŠธ์ฝ”์ธ(BTCโ€ฆ

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๋ธ”๋ก์ฒด์ธ ๊ณผ์—ฐ ์จ์•ผํ• ๊นŒ?

Posted on November 14, 2018

To Blockchain Or Not To Blockchain ์›๋ฌธ blockchain-or-not ๋งŽ์€ ์‚ฌ๋žŒ๋“ค์€ ๋ธ”๋ก์ฒด์ธ๊ณผ ์•”ํ˜ธํ™”์— ๋Œ€ํ•œ ์—ด์ •์ด ์‚ฌ๋ผ์ง€๊ณ  ์žˆ๋‹ค๊ณ  ์ฃผ์žฅํ•˜๊ณ  ์žˆ๋‹ค. ์‹ค์ œ๋กœ, Gartnerโ€ฆ

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๋ธ”๋ก์ฒด์ธ์„ ํ™œ์šฉํ•œ ๋””์ง€ํ„ธ ํˆฌํ‘œ

Posted on November 10, 2018

Digital Voting with the use of Blockchain Technology ์›๋ฌธ 1. Summaryโ€ฆ

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๋ธ”๋ก์ฒด์ธ๊ณผ ํ•ฉ์˜ ๊ธฐ๋ฐ˜ ์•”ํ˜ธํ™”ํ๋Š” ์–ด๋–ป๊ฒŒ ๊ทœ์ œํ•  ์ˆ˜ ์žˆ๋Š”๊ฐ€?

Posted on November 09, 2018

How Can Blockchain and Other Consensus Driven Cryptographic Technology be Regulated? ์›๋ฌธ ๊ธฐ์ˆ ์€ ์‹œ์ž‘์ ์— ์žˆ๋‹ค. 1988๋…„ Tim Mayโ€ฆ

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Step by Step machine laerning - 01

Posted on November 08, 2018

California Housing ๋ฐ์ดํ„ฐ๋ฅผ ๋ฐ”ํƒ•์œผ๋กœ scikt-learn์„ ํ™œ์šฉํ•œ ๋จธ์‹ ๋Ÿฌ๋‹ ์˜ˆ์ œ. 1. ๊ธฐ๋ณธ์ ์ธ ๋ฐ์ดํ„ฐ ๋กœ๋”ฉ ํ”„๋ก์‹œ ํ™˜๊ฒฝ์ด๋ผ, ํ”„๋ก์‹œ๋ฅผ ํ•ธ๋“ค๋Ÿฌ์— ์ถ”๊ฐ€ํ•˜์˜€์Šต๋‹ˆ๋‹ค. ๋Š” ํ…์ŠคํŠธ๋กœ ์ •๋ณด๊ฐ€ ๋“ค์–ด๊ฐ€ ์žˆ๋Š” ๊ฒƒ ๊ฐ™๋‹ค. ๊ทธ๋ž˜ํ”„๋กœ ๋ณด์ž ml-1-1.png 2. ๋ฐ์ดํ„ฐ ๋ถ„์„ ์ด์ œ ๋ฐ์ดํ„ฐ๋ฅผ test set๊ณผ train set์œผ๋กœ ๋‚˜๋ˆ  ๋ณด์ž. testsizeโ€ฆ

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์™œ ๋Œ€๋ถ€๋ถ„์˜ ์Šค๋งˆํŠธ ์ปจํŠธ๋ž™ํŠธ ์‚ฌ๋ก€๊ฐ€ ์‹คํ˜„ ๋ถˆ๊ฐ€๋Šฅํ•œ๊ฐ€?

Posted on November 08, 2018

์ธ๊ธฐ ์žˆ๋Š” ๋ธ”๋ก์ฒด์ธ ํ”Œ๋žซํผ์„ ๊ฐœ๋ฐœํ•˜๋ฉด์„œ, ๋‚˜๋Š” ๋•Œ๋•Œ๋กœ Ethereum๊ณผ ๊ฐ™์€ ์Šค๋งˆํŠธ ์ปจํŠธ๋ž™ํŠธ๊ฐ€ MultiChainโ€ฆ

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๋น„ํŠธ์ฝ”์ธ๊ณผ ๋‹ค๋ฅธ ์•”ํ˜ธํ™”ํ๋Š” ์“ธ๋ชจ๊ฐ€ ์—†๋‹ค.

Posted on November 07, 2018

Bitcoin and other cryptocurrencies are useless ์›๋ฌธ ์˜›๋ง์— ์‹œ์žฅ์ด ํƒ์š•์ด๋‚˜ ๋‘๋ ค์›€์— ์˜ํ•ด ์ง€๋ฐฐ๋œ๋‹ค๊ณ  ์ด์•ผ๊ธฐ ํ•œ๋ฐ” ์žˆ์—ˆ๋‹ค. ํ•œ๋•Œ๋Š” ์š•๋ง์ด ์•”ํ˜ธํ™”ํ๋ฅผ ์ง€๋ฐฐํ•œ์ ์ž‰ ์žˆ์—ˆ๋‹ค. ๊ฐ€์žฅ ์ž˜ ์•Œ๋ ค์ง„ ๋น„ํŠธ์ฝ”์ธ์˜ ๊ฐ€๊ฒฉ์€ 2016๋…„ 12์›” ์•ฝ 900๋‹ฌ๋Ÿฌ์—์„œ 1๋…„ ํ›„ 1๋งŒโ€ฆ

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์ดˆ๋ณด๋ฅผ ์œ„ํ•œ ์›นํฌ๋กค๋ง: ๋„ค์ด๋ฒ„ ์˜ํ™” ๋Œ“๊ธ€ ํฌ๋กค๋งํ•˜๊ธฐ

Posted on November 05, 2018

e ํŒŒ์ด์ฌ๊ณผ ํŒŒ์ด์ฌ ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ (beatifulSoup)๋ฅผ ํ™œ์šฉํ•˜์—ฌ ๋„ค์ด๋ฒ„ ์˜ํ™” ๋Œ“๊ธ€ ํฌ๋กค๋ง ํ•ด๋ณด๊ธฐ 1. ํฌ๋กค๋งํ•˜๋ ค๋Š” ์›นํŽ˜์ด์ง€์˜ ๊ตฌ์กฐ๋ฅผ ์‚ดํŽด๋ณด๊ธฐ ์ธํฌ๋ ˆ๋”๋ธ” ํ‰์  ๋Œ“๊ธ€ ํŽ˜์ด์ง€๋ฅผ ๋จผ์ € ์‚ดํŽด๋ณด๊ฒ ์Šต๋‹ˆ๋‹ค. ์—ฌ๊ธฐ naver-crawling-1 ์šฐ๋ฆฌ๊ฐ€ ํ• ์ผ์€ ์ € ํŽ˜์ด์ง• (1, 2, 3,โ€ฆ

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๋ถ„์‚ฐ๋œ ๋ฐ์ดํ„ฐ: ์™œ ๋ธ”๋ก์ฒด์ธ์€ ์˜๋ฏธ๊ฐ€ ์—†๊ณ , Trustless๊ฐ€ ํ•ต์‹ฌ์ธ๊ฐ€?

Posted on November 04, 2018

Decentralized Data: โ€œWhy Blockchain is meaningless and Trustless is everythingโ€ ์›๋ฌธ ์™œ ๋ธ”๋ก์ฒด์ธ ๊ธฐ์ˆ ์€ ์˜๋ฏธ๊ฐ€ ์—†๋Š”๊ฐ€? ๋ธ”๋ก์ฒด์ธ ๊ธฐ์ˆ ๊ณผ ๋ถ„์‚ฐํ™”๋Š” ์ผ๋ฐ˜์ ์ธ ๋Œ€์ค‘๋“ค์˜ ์ฑ„ํƒ์„ ์œ„ํ•œ ์ค€๋น„๊ฐ€ ๋˜์–ด ์žˆ์ง€ ์•Š์€ ์ƒˆ๋กœ์šด ๊ธฐ์ˆ ์ด์ง€๋งŒ, ๋™์‹œ์— ๋‹ค์Œ 1โ€ฆ

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๋น„ํŠธ์ฝ”์ธ 10์ฃผ๋…„ ๊ธฐ๋…: ๋น„ํŠธ์ฝ”์ธ์˜ ์—ญ์‚ฌ

Posted on November 03, 2018

Bitcoin turns 10: An annotated timeline ์›๋ฌธ ์ง€๋‚œ ์ˆ˜์š”์ผ (2018๋…„ 10์›” 31์ผ) ์€ ๋น„ํŠธ์ฝ”์ธ ๋ฐฑ์„œ์˜ "Bitcoin: Peer-to-Peer Electronic Cash System"์ด cryptography ๋ฉ”์ผ๋ง ๋ฆฌ์ŠคํŠธ์— ์˜ฌ๋ผ์˜จ์ง€ 1โ€ฆ

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๋น„ํŠธ์ฝ”์ธ ๋ฐฑ์„œ๋Š” ์„ฑ๊ฒฝ์ด ์•„๋‹ˆ๋‹ค.

Posted on November 02, 2018

Bitcoin's White Paper Is Not a Bible โ€“ Stop Worshipping It ์›๋ฌธ ๋น„ํŠธ์ฝ”์ธ์˜ ๋ฐฑ์„œ๊ฐ€ ๋ฐœํ‘œ๋œ ์ง€ 10๋…„์ด ์ง€๋‚ฌ๊ณ , ์„ธ๊ณ„๋Š” ๋น„ํŠธ์ฝ”์ธ์˜ ๊นŠ์€ ์˜ํ–ฅ์„ ์ดํ•ดํ•˜๋Š”๋ฐ 10๋…„์ด ๊ฑธ๋ ธ๋‹ค. ๋˜ํ•œ ๊ฐ€์šฉ์„ฑ๊ณผ ํ™•์žฅ์„ฑ์„ ๊ฐœ์„ ํ•˜๊ธฐ ์œ„ํ•ด 1โ€ฆ

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์Šค์›จ๋ด e-krona ํ”„๋กœ์ ํŠธ ๋ฆฌํฌํŠธ1

Posted on November 01, 2018

E-krona project, report 1 ์›๋ฌธ RiskBank๋Š” ์ด๋ฅธ๋ฐ” e-krona๊ฐ€ ํ˜„๊ธˆ์— ๋Œ€ํ•œ ๋Œ€์ฒด์žฌ๊ฐ€ ๋  ์ˆ˜ ์žˆ๋Š”์ง€, ๊ทธ๋ฆฌ๊ณ  ๊ทธ๋Ÿฌํ•œ ์ง€๋ถˆ์ด ์•ˆ์ „ํ•˜๊ณ  ํšจ์œจ์ ์ด๋„๋ก ์ด‰์ง„ํ•˜๋Š” ์ž‘์—…์—์„œ Riksbankโ€ฆ

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์Šค์›จ๋ด e-krona ํ”„๋กœ์ ํŠธ ๋ฆฌํฌํŠธ2

Posted on October 31, 2018

E-krona project, report 2 ์›๋ฌธ ์Šค์›จ๋ด์—์„œ๋Š” ํ˜„๊ธˆ ์‚ฌ์šฉ์ด ๊ณ„์† ๊ฐ์†Œํ•˜๊ณ  ์žˆ๋‹ค. ๋ฏธ๋ž˜์—๋Š” ํ˜„๊ธˆ ์‚ฌ์šฉ์ด ์†Œ์™ธ๋˜์–ด ์ง€๋ถˆ ์ˆ˜๋‹จ์œผ๋กœ ์‚ฌ์šฉํ•˜๊ธฐ๊ฐ€ ์–ด๋ ค์›Œ ์งˆ ์ˆ˜ ์žˆ๋‹ค. 350๋…„ ๋™์•ˆ Riksbankโ€ฆ

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์†Œ์…œ ๋ฏธ๋””์–ด์—์„œ ๊ธˆ์ง€๋˜๊ณ  ์žˆ๋Š” ICO ๊ด‘๊ณ 

Posted on October 30, 2018

Big Tech Are Banning Crypto And ICO Ads - Is There A Reason to Panic? ์›๋ฌธ ํŽ˜์ด์Šค๋ถ, ์ธ์Šคํƒ€๊ทธ๋žจ, ํŠธ์œ„ํ„ฐ๋ฅผ ํฌํ•จํ•œ ์ฃผ์š” ์†Œ์…œ ๋ฏธ๋””์–ด ํ”Œ๋žซํผ์€ ์ตœ๊ทผ ์•”ํ˜ธํ™”ํ์™€ ICO ๊ด‘๊ณ ๋ฅผ ๊ธˆ์ง€ํ–ˆ๊ณ , ๊ตฌ๊ธ€์€ 2018๋…„โ€ฆ

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