{"id":8044,"date":"2018-11-11T19:49:31","date_gmt":"2018-11-11T10:49:31","guid":{"rendered":"http:\/\/www.stechstar.com\/user\/wordpress\/?p=8044"},"modified":"2018-11-11T19:49:31","modified_gmt":"2018-11-11T10:49:31","slug":"%eb%8d%b0%ec%9d%b4%ed%84%b0-%ea%b3%bc%ed%95%99%ec%9e%90%ea%b0%80-%ea%b0%96%ec%b6%b0%ec%95%bc-%ed%95%a0-5%ea%b0%80%ec%a7%80-%ec%8a%a4%ed%82%ac%ec%85%8b","status":"publish","type":"post","link":"https:\/\/www.stechstar.com\/user\/wordpress\/%eb%8d%b0%ec%9d%b4%ed%84%b0-%ea%b3%bc%ed%95%99%ec%9e%90%ea%b0%80-%ea%b0%96%ec%b6%b0%ec%95%bc-%ed%95%a0-5%ea%b0%80%ec%a7%80-%ec%8a%a4%ed%82%ac%ec%85%8b\/","title":{"rendered":"\ub370\uc774\ud130 \uacfc\ud559\uc790\uac00 \uac16\ucdb0\uc57c \ud560 5\uac00\uc9c0 \uc2a4\ud0ac\uc14b"},"content":{"rendered":"

\ub370\uc774\ud130 \uacfc\ud559\uc790\uac00 \uac16\ucdb0\uc57c \ud560 5\uac00\uc9c0 \uc2a4\ud0ac\uc14b<\/h1>\n
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\ub370\uc774\ud130 \uc0ac\uc774\uc5b8\uc2a4, \ub370\uc774\ud130 \uacfc\ud559, \ub370\uc774\ud130 \uacfc\ud559\uc790, \uba38\uc2e0\ub7ec\ub2dd, \ub525\ub7ec\ub2dd, R<\/em><\/p>\n

\uc8fc\ubcc0\uc5d0\uc11c \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\ud2f0\uc2a4\ud2b8\uac00 \ub420\ub824\uba74 \uc5b4\ub5a4 \uacf5\ubd80\ub97c \ud574\uc57c\ub418\ub294\uc9c0 \ubb3b\ub294 \uacbd\uc6b0\uac00 \ucc38 \ub9ce\ub2e4. \uc804\uc5d0 \ub2e4\ub154\ub358 \ud06c\ub9ac\ud14c\uc624\ub77c\ub294 \ud504\ub791\uc2a4 \ub9ac\ud0c0\uac8c\ud305 \uad11\uace0 \ud68c\uc0ac\uc758 \uc138\uc77c\uc988 \ud300 \uc0ac\ub78c\ub4e4\uc740 Data Analyst \uc640 Data Scientist\uac00 \ubb34\uc2a8 \ucc28\uc774\uac00 \uc788\ub294\uc9c0 \uc798 \ubaa8\ub974\uace0 \ub0a0 \ub354\ub7ec \uadf8\ub0e5 \ub370\uc774\ud130 \ud300 \uc0ac\ub78c\uc774\ub77c\uace0 \ubd88\ub800\uace0, \uadf8 \uc911 \ub204\uad6c\ub294 \uc790\uae30\uac00 \ub370\uc774\ud130 \ucabd\uc73c\ub85c \ucee4\ub9ac\uc5b4\ub97c \uc804\ud658\ud558\uace0 \uc2f6\uc740\ub370, \ub098\ub354\ub7ec Data Scientist\uac00 \ub420\ub824\uba74 \uc5b4\ub5bb\uac8c \ud574\uc57c\ub418\ub0d0\uace0 \ubb3b\ub354\ub77c. \uac1c\ubc1c\uc790 \uc911\uc5d0\uc11c \uc694\uc998 \uba38\uc2e0\ub7ec\ub2dd \uacf5\ubd80\ud558\uace0 \uc788\ub294\ub370, \ubb34\uc2a8\ubb34\uc2a8 \uc218\uc5c5 \ub2e4 \ub4e3\uace0\ub098\uba74 \uc774\uc81c \uc790\uae30\ub294 \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\ud2f0\uc2a4\ud2b8 \ub418\ub294\uac70 \uc544\ub2c8\ub0d0\uace0 \ud558\ub294 \uacbd\uc6b0\ub3c4 \uc788\uc5c8\ub2e4. \ud544\uc790\uac00 \uc2ec\uc2ec\ud558\uba74 \ucc3e\uc544\uac00\ub294 \ubaa8 \ub7a9\ud0d1 \ube0c\ub79c\ub4dc \ucee4\ubba4\ub2c8\ud2f0\uc5d0\ub294 \uc790\uae30\uac00 Udemy\uc758 Data Analysis \uc218\uc5c5\uc744 \ub4e3\uace0 \uc788\ub294\ub370, \uc55e\uc73c\ub85c \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\ud2f0\uc2a4\ud2b8\uac00 \ub420\ub824\uba74 \ubb58 \ub354 \uacf5\ubd80\ud574\uc57c\ub418\ub0d0\uace0 \ub290\ub2f7\uc5c6\uc774 \uac1c\uc778 \uba54\uc138\uc9c0\ub97c \ubcf4\ub0b4\uc2dc\ub294 \ubd84\ub3c4 \uc788\uc5c8\ub2e4.<\/p>\n

\uac04\ub2e8\ud788 \uc815\ub9ac\ud558\uba74, \uadf8\ub7f0 \uc9c8\ubb38 \ud558\uc2dc\ub294 \ubd84\ub4e4 \uc815\ub9d0, \uc9c4\uc9dc \ub108\ubb34\ub108\ubb34\ub108\ubb34 \ub9ce\ub2e4.<\/p>\n

\uc194\uc9c1\ud55c \ub300\ub2f5\uc744 \ub4dc\ub9ac\uc790\uba74, \u201c\uc800\ub3c4 \ubab0\ub77c\uc694.\u201d\uac00 \ub420 \uac83 \uac19\ub2e4.<\/p>\n

\ud544\uc790\uc758 \ubc31\uadf8\ub77c\uc6b4\ub4dc\ub294 Economics \ud559\ubd80, Financial Econometrics \uc11d\uc0ac, \uadf8\ub9ac\uace0 Financial Math \ubc15\uc0ac \ucd9c\uc2e0\uc774\uace0, \uc11d\uc0ac \uc2dc\uc808\ubd80\ud130 \uc5f0\uad6c \uc8fc\uc81c \ud0d3\uc5d0 MCMC Simulation\uacfc Network Theory\ub77c\ub294 \ud1b5\uacc4\ud559\uacfc \uc218\ud559\uc758 \ud55c \ubd84\uc57c\ub97c \uae4a\uac8c \uacf5\ubd80\ud588\uc5c8\ub2e4. \uc911\uac04\uc5d0 \uce5c\uad6c\ub530\ub77c \uac15\ub0a8\uac00\ub294 \uaf34\ub85c \uc5f0\uad6c\uc2e4 \uadfc\ucc98\uc5d0 \uc788\ub294 MIT\uc5d0\uc11c \uba38\uc2e0\ub7ec\ub2dd \uc218\uc5c5 \uba87 \uac1c\ub4e3\uace0 \uc774\uac70 \ub0b4\uac00 \uc54c\uace0 \uc788\ub358 Simulation\uc774\ub791 \uac19\uc740 \uc218\ub9ac\ud1b5\uacc4\ud559 \uc4f0\uace0 \uc788\uad6c\ub098\uace0 \uc774\ud574\ud588\ub358 \uc815\ub3c4\uac00 \uc804\ubd80\ub2e4. \ucc98\uc74c \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\uc2a4 \ucabd \uc9c1\uc7a5\uc744 \ucc3e\ub358 \uc2dc\uc808 \uc4f8 \uc218 \uc788\uc5c8\ub358 \ud504\ub85c\uadf8\ub798\ubc0d \uc2a4\ud0ac\uc14b\uc774\ub77c\uace0 \ud574\ubd10\uc57c R\uc774\ub791 Matlab\uc774 \ub0b4\uc138\uc6b8 \uc218 \uc788\ub294 \uc218\uc900\uc774\uace0, SQL\uc740 \uc815\ub9d0 \uae30\ubcf8\ub9cc \ud588\ub2e4. \ub2e4\ub978 \ucf54\ub529 \uc5b8\uc5b4\ub294 \uc4f8 \uc904 \ubaa8\ub974\uae30\ub294 \ucee4\ub155, \ubcc4\ub85c \ub4e4\uc5b4\ubcf8 \uc801\ub3c4 \uc5c6\ub294 \uc801\uc774 \ub9ce\uc558\ub2e4.<\/p>\n

\ud68c\uc0ac \uac00\ubcf4\ub2c8 Data Visulization\uc5d0 \ud544\uc694\ud55c Tableau\ub77c\ub294 \ud504\ub85c\uadf8\ub7a8\uc744 \uac00\ub974\uccd0\uc8fc\uae38\ub798 \uacf5\ub4e4\uc5ec \ubc30\uc6e0\uace0, \ub370\uc774\ud130 \ubca0\uc774\uc2a4 \uc811\uadfc\ud558\ub294 \uac83 \ub54c\ubb38\uc5d0 SQL\ub3c4 Hive \uc54c\uac8c\ub418\uace0, \ub098\uc544\uac00\uc11c\ub294 Hadoop \uc5b4\ub5bb\uac8c \uc4f0\ub294\uc9c0\uae4c\uc9c0 \uacf5\ubd80\ub97c \ud558\uac8c\ub410\ub2e4. \uc0ac\uc2e4 \ub354 \uae4a\uac8c Data Engineer\ub4e4 \ucabd \uc601\uc5ed\uc5d0 \uc190\uc744 \ub314\uc73c\uba74 Spark \uac19\uc740 \uac83\ub3c4 \uacf5\ubd80\ud588\uc73c\uba74 \ub410\uc744\ud150\ub370, \ud544\uc790\uc758 \uc8fc \uc5c5\ubb34\uac00 Data Science\uc600\uc9c0 Engineering \ucabd\uc774 \uc544\ub2c8\uc5b4\uc11c \ud06c\uac8c \uad00\uc2ec\uc744 \ub450\uc9c8 \uc54a\uc558\uace0, \uc194\uc9c1\ud788 \uacf5\ubd80\ud560 \uc2dc\uac04\ub3c4 \uc5c6\uc5c8\ub2e4. \ub2f9\uc7a5 Data Science \uc5c5\ubb34\uc5d0 \uc3df\uc744 \uc2dc\uac04\ub3c4 \ubd80\uc871\ud588\uc5c8\uc73c\ub2c8\uae4c. (\uac1c\uc778\uc801\uc778 \ubc31\uadf8\ub77c\uc6b4\ub4dc\uac00 \ub354 \uad81\uae08\ud558\uc2e0 \ubd84\uc740 \ub9c1\ud06c<\/a>\uc758 \uc81c\uc77c \ud558\ub2e8\uc744 \ucc38\uc870)<\/p>\n

\uc2dc\uc7a5\uc5d0\uc11c \uc694\uc998 \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\ud2f0\uc2a4\ud2b8\ub97c \ub9ce\uc774 \ubf51\ub294\ub370, \uc815\uc791 \uc0ac\ub78c\uc740 \uc5c6\ub2e4\ubcf4\ub2c8\uae4c \ub2e4\uc591\ud55c \ubd84\uc57c \ucd9c\uc2e0\ub4e4\uc744 \ubaa8\uc73c\uace0 \uc788\uace0, \uadf8\ub7ec\ub2c8\uae4c \ub354\ub354\uc6b1 \ubb50\uac00 Data Science\uc778\uc9c0 \uc798 \ubaa8\ub974\ub294 \uc0c1\ud0dc\uac00 \uc9c0\uc18d\uc774 \ub41c \uac83 \uac19\ub2e4. \uadf8 \ud0d3\uc5d0 \ubc30\uc6b8 \uc9c0\uc2dd\uc774 \uc5c4\uccad\ub098\uac8c \ub9ce\uc544\ubcf4\uc774\ub294 \ucc29\uc2dc\ud6a8\uacfc\uac00 \uc788\ub294\ub370, \uc774\uac74 \uaf2d \uc54c\uc558\uc73c\uba74 \uc88b\uaca0\ub2e4 \uc2f6\uc740 \ub0b4\uc6a9\ub4e4\uc744 \ud55c\ubc88 \uc815\ub9ac\ud574\ubcf4\uc790.<\/p>\n

1. R or Python<\/h2>\n

\uc774 \ub450 \uac1c\uc758 \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\ub294 \uc2dc\uc7a5\uc758 \uc2a4\ud0e0\ub2e4\ub4dc\uac00 \ub418\uc5b4\ubc84\ub838\ub2e4. \ub458 \uc911 \uc5b4\ub290\ucabd\uc774 \ub354 \uc6b0\uc6d4\ud558\ub0d0\uace0\ud558\uba74 \ud544\uc790\ub3c4 \ub300\ub2f5\uc744 \ubabb\ud558\uaca0\uace0, \uad73\uc774 \ub530\uc9c0\uc790\uba74 R \ucabd\uc774 \uc57d\uac04 \ub354 \uc26c\uc6b8 \uac83 \uac19\uae30\ub294 \ud558\ub2e4. \ub300\uccb4\ub85c R\uc740 \ud1b5\uacc4\ud559 \ucd9c\uc2e0\ub4e4\uc774 \ub9ce\uc774 \uc4f0\uace0, Python\uc740 \uac1c\ubc1c\uc790 \ucd9c\uc2e0\ub4e4\uc774 \ub9ce\uc774 \uc4f4\ub2e4. \uc2e4\uc81c\ub85c\ub3c4 Python for production \uc774\ub77c\uace0 \uc774\uc57c\uae30\ub4e4 \ud558\uace0, R for deep statistical analysis \ub77c\uace0 \uc774\uc57c\uae30 \ud55c\ub2e4. Random sampling \uac19\uc740 \uc870\uae08 \uae4a\uc740 \ud1b5\uacc4 \uc9c0\uc2dd\uc744 \ud65c\uc6a9\ud558\uace0 \uc2f6\uc73c\uba74 Python\uc5d0\ub294 \uc5c6\ub294 \uae30\ub2a5\ub4e4\uc774 R\uc5d0 \uc798 \uad6c\ube44\ub418\uc5b4 \uc788\uace0, \ubc18\ub300\ub85c \uacb0\uacfc\ubb3c\uc744 \ud504\ub85c\uadf8\ub7a8\uc5d0 \uc5b9\uc73c\ub824\uace0\ud558\uba74 Python\ub9cc\ud55c \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uac00 \uc5c6\ub294 \uac83 \uac19\ub2e4.<\/p>\n

\"\"<\/a><\/p>\n

\ub370\uc774\ud130 \uc0ac\uc774\uc5b8\uc2a4\uc5d0\uc11c R vs. Python<\/a>\uc73c\ub85c \ubb34\uc2a8 \uacbd\uc7c1\uccb4\uc81c\uc778 \uac83\ucc98\ub7fc \ubab0\uc544\uac00\ub294\ub370, \ub458\uc774 \uc0c1\ud638 \ubcf4\uc644\uc801\uc778 \uad00\uacc4\ub77c\uace0 \ud558\uba74 \ub354 \ub9de\uc9c0 \uc54a\uc744\uae4c?<\/p>\n

\uc544\ubb4f\ud2bc, \ucd5c\uc18c\ud55c \ub458 \uc911 \ud558\ub098\ub294 \uc798 \ud574\uc57c \uc5b4\ub514\uac00\uc11c \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\ud2f0\uc2a4\ud2b8\ub77c\uace0 \ud560 \uc218 \uc788\ub2e4. \uad00\ub828\ud574\uc11c \ub354 \uad81\uae08\ud558\uc2e0 \ubd84\uc740 \uc5ec\uae30<\/a>\uc5d0\uc11c\ubd80\ud130 \uae00\ud0c0\ub798\ub97c \ub530\ub77c\uac00\uc2dc\uba74 \ub41c\ub2e4.<\/p>\n

2. \uba38\uc2e0\ub7ec\ub2dd<\/h2>\n

\ub370\uc774\ud130\ub85c \ubb58 \ud558\ub294\uac78 \uc0ac\uc774\uc5b8\uc2a4\ub77c\uace0 \uc8fc\uc7a5\ud558\ub294 \ud559\ubb38 \ubd84\uc57c\uac00 \ub098\uc624\uac8c \ub41c \uac00\uc7a5 \uc911\uc694\ud55c \ub450 \uac00\uc9c0 \u201c\ud601\uba85\u201d\uc744 \uaf3d\uc73c\ub77c\uba74 \ube45\ub370\uc774\ud130\uc640 \uba38\uc2e0\ub7ec\ub2dd\uc744 \ub4e4 \uc218 \uc788\ub2e4. \uad73\uc774 \ub530\uc9c0\uc790\uba74 \ube45\ub370\uc774\ud130\uac00 \uc788\uae30 \ub54c\ubb38\uc5d0 \uba38\uc2e0\ub7ec\ub2dd\uc774 \uc758\ubbf8\uac00 \uc788\ub294 \uac83\uc774\uae30\ub294 \ud558\uc9c0\ub9cc, \uae30\uc220\uc801\uc778 \uc9c0\uc2dd\uc774\ub77c\ub294 \uce21\uba74\uc5d0\uc11c \ube45\ub370\uc774\ud130\ub97c \ubc30\uc6b8 \uc218\ub294 \uc5c6\uc73c\ub2c8 (\ub370\uc774\ud130\ub97c \uc5b4\ub5bb\uac8c \u201c\ubc30\uc6b0\u201d\ub0d0? \ub370\uc774\ud130\ub97c \ud65c\uc6a9\ud558\ub294 \u201c\uc9c0\uc2dd\u201d\uc744 \u201c\ubc30\uc6cc\u201d\uc57c\uc9c0 \u314b\u314b \u201c\uba38\uc2e0\u201d\uc774 \u201c\ub7ec\ub2dd\u201d\ud558\uac8c \uc591\ubcf4\ud558\uc790), \ub2f9\uc5f0\ud788 \uba38\uc2e0\ub7ec\ub2dd\uc774 \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\uc2a4 \uc5c5\ubb34\uc758 \ud544\uc218 \uc2a4\ud0ac\uc14b\uc774 \ub420 \uc218 \ubc16\uc5d0 \uc5c6\ub2e4. (\ucc38\uace0, \ube45\ub370\uc774\ud130 \ub9cc\ub4dc\ub294 \ubc31\uc5d4\ub4dc \uac1c\ubc1c\uc790\ub294 \ub610 \ub2e4\ub978 \uc885\ub958\uc758 \uc9c1\uc5c5\uc774\ub2e4)<\/p>\n

\"\"<\/a><\/p>\n

\uc774\ucabd \uc5c5\uacc4\uc5d0\uc11c R\uc774\ub098 Python \uac19\uc740 \ud504\ub85c\uadf8\ub798\ubc0d \uc5b8\uc5b4\uac00 \ud06c\uac8c \uc131\uacf5\ud55c \uac00\uc7a5 \uc911\uc694\ud55c \uc774\uc720\uac00 \ubc14\ub85c \uba38\uc2e0\ub7ec\ub2dd\uc744 \uc2e4\uc81c\ub85c \ub3cc\ub824\ubcfc \uc218 \uc788\ub294 \uba87 \uc548 \ub418\ub294 \ubb34\ub8cc \ud328\ud0a4\uc9c0\uae30 \ub54c\ubb38\uc774\ub2e4.<\/p>\n

\uc774\ubbf8 \ub9ce\uc740 \uc624\ud508\uc18c\uc2a4 \ucf54\ub4dc\ub4e4\uc774 \ub3cc\uc544\ub2e4\ub2c8\uae30 \ub54c\ubb38\uc5d0, \ucf54\ub4dc\ub97c \uc801\uc6a9\ud55c\ub2e4\ub294 \uce21\uba74\uc5d0\uc11c \ub09c\uc774\ub3c4\ub294 \uadf8\ub807\uac8c \ub192\uc9c0 \uc54a\ub2e4. \uc194\ucc0d\ub9d0 \ud559\ubd80 \ud1b5\uacc4\ud559 + \ud68c\uadc0\ubd84\uc11d \uc815\ub3c4 \uc54c\uace0 \uc788\uc73c\uba74 \ub530\ub77c\uac00\ub294\ub370 \uc544\ubb34 \ubb38\uc81c \uc5c6\ub2e4. \ub300\ubd80\ubd84\uc758 \uacbd\uc6b0\uc5d0 \ud559\ubd80 \ud1b5\uacc4\ud559\uacfc \ud68c\uadc0\ubd84\uc11d\uc744 \ubab0\ub77c\uc11c \ubb38\uc81c\uace0, \uadf8 \ucf54\ub4dc\ub4e4\uc774 \uc791\ub3d9\ud558\ub294 \ubc30\uacbd\uc9c0\uc2dd\uc774 \uc5c6\uc5b4\uc11c \ubb38\uc81c\ub354\ub77c. (\uac15\uc758 \ucd08\uc810\uc744 \ubaa8\ub378 \uc18d\uc5d0 \uc228\uaca8\uc9c4 \uc9c1\uad00<\/a>\uacfc \uc9c1\uad00\uc744 \ubc1b\uccd0\uc8fc\ub294 \uc218\ud559&\ud1b5\uacc4\ud559\uc5d0 \uc9d1\uc911<\/a>\ud558\ub294 \uac83\ub3c4 \uac19\uc740 \uc774\uc720\ub2e4.)<\/p>\n

\ud559\ubd80 \ub54c \ucef4\ud4e8\ud130 \uc0ac\uc774\uc5b8\uc2a4 \ud574\uc57c\ub418\ub294\uac70 \uc544\ub2c8\ub0d0\uace0? \uc544\ub2c8\ub2e4. \uc815\ub9d0 \uc544\ub2c8\ub2e4.<\/p>\n

\ucc28\ub77c\ub9ac \ub85c\ubd07 \uacf5\ud559, \uae30\uacc4, \uc0b0\uc5c5 \uacf5\ud559 \uac19\uc740 \uacf5\ub300 \uc804\uacf5\uc774\ub098, \uacbd\uc81c\ud559 \uac19\uc740 \uc804\uacf5\uc774 \ud6e8\uc52c \ub354 \uc801\ud569\ud55c \uc804\uacf5<\/a>\uc774\ub2e4. \uc774\ub7f0 \uc804\uacf5\ub4e4\ub3c4 \ud559\ubd80, \uc11d\uc0ac \uc2dc\uc808\uc5d0 \ucf54\ub529 \ub9ce\uc774\ud558\uace0, \ubb38\uc81c\uc5d0 \ub300\ud55c \uc811\uadfc \ubc29\uc2dd\uc774 \uc218\ud559 \uc2dd\uc744 \uc138\uc6b0\uace0, \uadf8 \ubb38\uc81c\ub97c \ud480\uc5b4\ub098\uac00\ub294 \ubc29\uc2dd\uc774\uace0, \ubb54\uac00 \uc798\ubabb \ub418\uc5c8\uc744 \ub54c\ub294 \ucf54\ub4dc\ub9cc \uccd0\ub2e4\ubcf4\ub294\uac8c \uc544\ub2c8\ub77c \uc218\uc2dd\ub3c4 \ud568\uaed8 \uccd0\ub2e4\ubcf8\ub2e4. \uad73\uc774 \ucc28\uc774\uac00 \uc788\ub2e4\uba74 \uc218\ud559\uc744 \ucf54\ub529\ud558\ub294 \uac70\uc9c0, \uac1c\ubc1c\uc790\ub4e4\ucc98\ub7fc IT \uc2dc\uc2a4\ud15c\uc758 \uc77c\ubd80\ub97c \uad6c\ud604\ud558\ub294 \ucf54\ub529\uc744 \ud558\uc9c0 \uc54a\ub294 \uac83\uc77c \ubfd0\uc774\ub2e4. \uba38\uc2e0\ub7ec\ub2dd\ub3c4 \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \uc218\ub9ac \ud1b5\uacc4\ud559 \ubaa8\ub378\ub9c1\uc774 \ub4e4\uc5b4\uac04 \ucf54\ub529\uc774\ub2e4.<\/p>\n

\uadf8\ub7fc \ud559\ubd80 \ub54c \uc218\ud559\uc774\ub791 \ud1b5\uacc4\ud559 \uc5c4\uccad \uacf5\ubd80\ud588\uc5b4\uc57c\ub418\ub294\uac70 \uc544\ub2c8\ub0d0\uace0? \uadf8\ub0e5 \ud559\ubd80 1-2\ud559\ub144 \uc218\uc900\uc758 \uc218\ud559 \uc9c0\uc2dd\uc5d0 3\ud559\ub144 \uc815\ub3c4\uc5d0 \ubc30\uc6b0\ub294 \ud68c\uadc0\ubd84\uc11d\ub9cc \uc54c\uba74 \ub41c\ub2e4. \uc774\uac74 \ud544\uc790\uc758 \uc218\uc5c5\uc744 \ub4e4\uc740 \uc774\ud559, \uacf5\ud559, \uacbd\uc81c\ud559 \u201c\ubc15\uc0ac \ud559\uc704\uc790\u201d\ub4e4\uc758 \uacf5\ud1b5\uc801\uc778 \uc758\uacac<\/a>\uc774\ub2e4.<\/p>\n

\ubb3c\ub860 \uba38\uc2e0\ub7ec\ub2dd\uc5d0 \ub300\ud574\uc11c \uae4a\uc774 \uc788\uac8c \uc54c\ub824\uba74 \uc544\ub798 3\ubc88\uc744 \ubcf4\uc790.<\/p>\n

3. \uc218\ub9ac\ud1b5\uacc4\ud559<\/h2>\n

\uac1c\ubc1c\uc790\ub4e4\uc774 \ud558\ub294 \uac00\uc7a5 \ud070 \ucc29\uac01\uc774 \ubc14\ub85c \uba38\uc2e0\ub7ec\ub2dd\uc740 \uacf5\ud559\uc774\uc9c0 \uc218\ud559\uc774 \uc544\ub2c8\ub77c\ub294 \uac70\ub2e4. \uc5ec\uae30\uc5d0 \ud544\uc790\ub294 \uc815\uba74\uc73c\ub85c \ubc18\ubc15\ud558\uace0 \uc2f6\ub2e4.<\/p>\n

\uba38\uc2e0\ub7ec\ub2dd\uc740 \uc218\ud559\uc774\uc9c0 \uacf5\ud559\uc774 \uc544\ub2c8\ub2e4. \uba38\uc2e0\ub7ec\ub2dd \uc785\ubb38\uc790\ub4e4\uc774 \ub4e3\ub294 Coursera\uc758 Andrew Ng \uc544\uc800\uc528 \uc218\uc5c5\uc744 \ud3c9\uac00\ud55c Quora \uae00<\/a>\uc744 \ubcf4\ub77c.<\/p>\n

\u201cWhat most people missed was that they approach machine learning as some kind of programming project, while in reality it is actually more of an applied math project with computational approach, and they really needed to focus on learning the math, which, in this case, is linear algebra.\u201d<\/em><\/p>\n

\uba38\uc2e0\ub7ec\ub2dd\uc740 \ud55c \ub2e8\uc5b4\ub85c \uc694\uc57d\ud558\uba74 \uc751\uc6a9\uc218\ud559\uc774\ub2e4. \uc120\ud615\ub300\uc218\ud559\uacfc \ud68c\uadc0\ubd84\uc11d\uc744 \uc11e\uace0, \ubc1c\uc804\ud558\ub2e4\ubcf4\ub2c8 \ub354 \uace0\uae09 \uc218\ud559\uacfc \ub354 \uace0\uae09 \ud1b5\uacc4\ud559\uc744 \uc4f0\ub294 \uadf8\ub7f0 \uc751\uc6a9\uc218\ud559\uc774\ub2e4. \ud544\uc790\uac00 \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\ud2f0\uc2a4\ud2b8\ub77c\uace0 \uc18c\uac1c\ud558\ub2c8 \uba38\uc2e0\ub7ec\ub2dd\uc744 \uacf5\ud559\uc774\ub77c\uace0 \uc0dd\uac01\ud574\uc11c \u201c\uc5b4, \uacf5\ub300 \ucd9c\uc2e0\uc774 \uc544\ub2cc\ub370 \uc5b4\ub5bb\uac8c \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\ud2f0\uc2a4\ud2b8\uc5d0\uc694?\u201d \ub77c\uace0 \uc9c8\ubb38\ud558\ub294 \ubca4\uccd0 \uce90\ud53c\ud0c8\ub9ac\uc2a4\ud2b8\ub3c4 \uc788\ub354\ub77c.<\/p>\n

\uc815\ub9ac\ud558\uba74, \ud655\ub960\ub860 + \uc120\ud615\ub300\uc218 + \ud68c\uadc0\ubd84\uc11d\uc774 \uba38\uc2e0\ub7ec\ub2dd\uc758 \uadfc\uac04\uc774\uace0, \uc774\uac78 \uc815\ub9d0 \uc798\ud558\uace0 \uc2f6\uc73c\uba74 \ub300\ud559\uc6d0 \uc218\uc900\uc758 \uc218\ud559\uacfc \ud1b5\uacc4\ud559\uc744 \uacf5\ubd80\ud574\uc57c\ud55c\ub2e4. \uc218\uc5c5 \uc654\ub358 \uac1c\ubc1c\uc790\ub4e4 \uc77c\ubd80\uac00 \ucee4\ub9ac\uc5b4\ub97c \uc811\uace0 \ub300\ud559\uc6d0\uc73c\ub85c \ubc29\ud5a5\uc744 \ud2bc \uc774\uc720\ub3c4 \uac19\uc740 \ub9e5\ub77d\uc77c \uac83\uc774\ub2e4. \uadf8\ub0e5 \uac16\ub2e4 \uc4f0\ub294 \ubc29\uc2dd\uc758 \uac1c\ubc1c\uacfc\ub294 \uadfc\ubcf8\uc801\uc73c\ub85c \ub2e4\ub978 \ud559\ubb38\uc774\ub77c\ub294 \uac78 \uc774\ud574\ud588\uae30 \ub54c\ubb38\uc77c \uac83\uc774\uace0, \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\uc2a4 \uc601\uc5ed\uc5d0\uc11c \uc778\uc815\ubc1b\uace0 \uc2f6\ub2e4\uba74 \uc218\ub9ac\ud1b5\uacc4\ud559 \uae4a\uc774\uac00 \uae4a\uc5b4\uc57c\ud55c\ub2e4\ub294 \uc0ac\uc2e4\uc744 \uae68\ub2ec\uc73c\uc168\uae30 \ub54c\ubb38\uc77c\ub4ef.<\/p>\n

\"\"<\/a><\/p>\n

\ub2f9\uc7a5 \ube45\ub370\uc774\ud130\ub85c \uc791\uc5c5\ud560\ub824\uace0 \uc804\ucc98\ub9ac\ud560 \ub54c Dimensionality reduction\uc5d0 \uc4f0\uc774\ub294 PCA\ub098 FA \ubd84\uc11d\uc774 \uc5b4\ub5bb\uac8c \uc791\ub3d9\ud558\ub294\uc9c0 \uba38\uc2e0\ub7ec\ub2dd\ud55c\ub2e4\ub294 \uac1c\ubc1c\uc790\ub4e4\uc5d0\uac8c \ubb3c\uc5b4\ubd10\ub77c. \ub458 \uc911 \uc5b4\ub5a4 \ubc29\ubc95\uc744 \uc368\uc57c\ud558\ub294\uc9c0\ub3c4 \ubaa8\ub974\uace0, \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \ub514\ud3f4\ud2b8\ub85c \ub418\uc5b4 \uc788\ub294 PCA\ub9cc \uc4f0\uace0 \uc788\uc744 \uac83\uc774\ub2e4. (\uc560\uc2dc\ub2f9\ucd08 \u201c\uadf8\ub0e5 \ub370\uc774\ud130 \ud06c\uae30 \uc904\uc5ec\uc8fc\ub294\uac70 \uc544\ub0d0?\u201d \uc218\uc900\uc744 \ub108\ubb34 \ub9ce\uc774 \ubd24\ub2e4.) PCA\ub294 Total variation\uc744 \ubcfc \ub54c, FA\ub294 \ubcc0\uc218\ub4e4\uac04 C0-variation\uc744 \ubcfc \ub54c \uc4f0\ub294 \ud14c\ud06c\ub2c9\ub4e4\uc774\ub2e4. \uc774 \ucc28\uc774\ub97c \ubab0\ub77c\uc11c \ud559\uacc4\uc5d0\uc11c \uc720\uba85\ud55c \ud1b5\uacc4 \ud328\ud0a4\uc9c0 \ud558\ub098\uac00 \uacc4\uc0b0\uc744 \uac70\uafb8\ub85c \ud558\ub358 \ubc14\ub78c\uc5d0 1990\ub144\ub300\uc5d0 \uc4f4 \ubaa8\ub4e0 \ub17c\ubb38\uc744 \ub2e4\uc2dc \uc368\uc57c\ud558\ub294 \uc0ac\uac74\ub4e4\ub3c4 \ubc1c\uc0dd\ud588\ub2e4.<\/p>\n

\uc65c? variance & co-variance matrix\ud558\ub098 \uadf8\ub824\ub193\uace0, \ubaa8\ub4e0 \uc22b\uc790\ub97c \ub2e4 \uc4f0\ub294\uc9c0, off-the-diagonal term\ub9cc \uc4f0\ub294\uc9c0\uc5d0 \ub530\ub77c \uc5f0\uad6c \uacb0\uacfc\ub294 \ub2f9\uc5f0\ud788 \ub2e4\ub974\uac8c \ub098\uc62c \uc218 \ubc16\uc5d0 \uc5c6\ub2e4. \uc2ec\uc9c0\uc5b4\ub294 \uc790\uae30 \ub17c\ubb38\uc744 \uc2a4\uc2a4\ub85c \ube44\ud310\ud558\uace0 \uc800\ub110\uc5d0\uc11c \ub0b4\ub824\ub2ec\ub77c\uace0 \ud558\ub358 \uc5f0\uad6c\uc790\ub3c4 \uc788\uc744 \uc815\ub3c4\uc600\ub2e4.<\/p>\n

\ubb34\uc2a8 \ub9d0\uc778\uc9c0 \uc798 \ubaa8\ub974\uaca0\ub2e4\uace0? \uadfc\ub370 \uc774\uac70 \uc0ac\uc2e4 \uc790\uc5f0\uacc4\uc5f4 1, 2\ud559\ub144 \uc120\ud615\ub300\uc218\ud559 \uc218\uc5c5\uc5d0\uc11c \ubc30\uc6b4 \uc9c0\uc2dd\uc774\ub2e4. (\uadf8\ub9ac\uace0 \ud544\uc790\uac00 \ud398\uc774X\ubd81 Data Scientist \uba74\uc811\ubcfc \ub54c \ub098\uc654\ub358 \uc9c8\ubb38\uc774\uae30\ub3c4 \ud558\ub2e4.)<\/p>\n

4. \ub370\uc774\ud130 \uc2dc\uac01\ud654 \ud328\ud0a4\uc9c0 \uc9c0\uc2dd<\/h2>\n

\ube45\ub370\uc774\ud130 \ubd84\uc11d\uc744 \ud574\uc11c \uacb0\uacfc\uac12\uc744 \ubcf4\uc5ec\uc8fc\ub294\ub370 \ucd5c\uc801\ud654\ub41c \uc218 \ub9ce\uc740 \ud234\ub4e4\uc774 \uc788\ub2e4. \ub2f9\uc7a5 R\ub85c\ub3c4 \uc608\uc05c \uadf8\ub798\ud504\ub4e4 \ucc38 \ub9ce\uc774 \uadf8\ub9b4 \uc218 \uc788\ub294\ub370, \ud544\uc790\ub294 \ud68c\uc0ac \uc0dd\ud65c\ud558\uba74\uc11c Tableau\ub85c \uc791\uc5c5\ud558\ub294 \uac78 \ubc30\uc6e0\ub2e4. \uc88b\ub354\ub77c. \ube44\uc2f8\uc11c \uadf8\ub807\uc9c0. \uadf8\ub9ac\uace0 \uac00\uaca9\uacbd\uc7c1\ub825\uc774 \uc880 \ub354 \uc788\ub294 \ud234\ub85c Qilk\ub3c4 \uc368 \ubcf8\uc801\uc774 \uc788\ub2e4. \uc65c \uae30\uc5c5\ub4e4\uc774 Tableau \uc4f0\ub294\uc9c0 \uc54c\uaca0\ub2e4\ub294 \uc0dd\uac01\ub3c4 \ub4e4\uc5c8\uace0, \uc774\uac83\ub3c4 \ucc38 \uc4f8\ub9cc\ud558\ub2e4\ub294 \uc0dd\uac01\ub3c4 \ud588\ub2e4.<\/p>\n

\"\"<\/a><\/p>\n

\uc0ac\uc2e4 R\ub85c \uc791\uc5c5\ud558\uae30\ub85c \ub9d8 \uba39\uc73c\uba74 Java Script\ub85c \uadf8\ub798\ud504 \ub9cc\ub4dc\ub294 \uac78 \ucc98\ub9ac\ud574\uc8fc\ub294 \ud328\ud0a4\uc9c0\ub3c4 \uc788\uae30 \ub54c\ubb38\uc5d0, \uc660\ub9cc\ud55c \uc77c\ub4e4\uc740 \ub2e4 R\ub85c \ud574\uacb0\ud560 \uc218 \uc788\ub2e4. \ub2f9\uc7a5 Sankey, Sunburst \uac19\uc740 \uadf8\ub798\ud504\ub4e4 \ud55c\ubc88 \uadf8\ub9b4\ub824\uace0 \uc2dc\ub3c4\ud574\ubd10\ub77c. \uc544\ub9c8 \uc544\uc9c1\ub3c4 R\ub9d0\uace0 \ub2e4\ub978 \ud328\ud0a4\uc9c0\ub85c \uc800\ub7f0 \ubcf5\uc7a1\ud55c \uadf8\ub798\ud504\ub97c \uc27d\uac8c Customizing \ud558\uae30 \ud798\ub4e4 \uac83\uc774\ub2e4.<\/p>\n

5. Data Modeling \uc13c\uc2a4<\/h2>\n

\ub9c8\uc9c0\ub9c9\uc73c\ub85c \uac00\uc7a5 \uc911\uc694\ud55c \uc2a4\ud0ac \uc14b\uc774\ub2e4. \uc704\uc5d0 4\uac00\uc9c0 \uc9c0\uc2dd\uc740 \uc0ac\uc2e4 \uc5c6\uc73c\uba74 \ubc30\uc6b0\uba74 \ub41c\ub2e4. \uadf8\ub7f0\ub370 Data Modeling \uc13c\uc2a4 \uc5c6\uc73c\uba74 \ub370\uc774\ud130\ub85c \ubd84\uc11d\uc744 \uc694\ud558\ub294 \uadf8 \uc5b4\ub5a4 \uc885\ub958\uc758 \uc9c1\uc5c5\ub3c4 \ud560 \uc218\uac00 \uc5c6\ub2e4. (\uc544\ub9c8 \ub370\uc774\ud130 \uc11c\ubc84 \uad00\ub9ac\ud558\ub294 \uc5d4\uc9c0\ub2c8\uc5b4\uac00 \uc774\ucabd \uad00\ub828 \uc9c1\uad70\uc5d0\uc11c \uc720\uc77c\ud55c \ub300\uc548\uc774 \uc544\ub2d0\uae4c \uc2f6\ub2e4.)<\/p>\n

\uac00\uc7a5 \ub2e8\uc21c\ud558\uac8c\ub294 \uc5d1\uc140\ub85c \uadf8\ub798\ud504\ub97c \uc798 \uadf8\ub824\uc11c \ubcf4\ub294 \uc0ac\ub78c\ub4e4\uc774 \ud55c\ubc88\uc5d0 \uc27d\uac8c \uc774\ud574\ud560 \uc218 \uc788\ub3c4\ub85d \ud574 \uc8fc\ub294 \uac83\ub3c4 \ud3ec\ud568\ub420 \uac83\uc774\uace0, \ubcf5\uc7a1\ud558\uac8c\ub294 \uc5b4\ub5a4 \ud1b5\uacc4 \ubaa8\ub378\ub85c \uac00\uc124\ub4e4\uc744 \uac80\uc99d\ud560 \uc218 \uc788\uc744\uc9c0\uc5d0 \ub300\ud55c \uc544\uc774\ub514\uc5b4\ub4e4\uc774 \ud3ec\ud568\ub41c\ub2e4.<\/p>\n

\"\"<\/a><\/p>\n

\ud544\uc790\uac00 \uc11d\uc0ac \ucc98\uc74c\ub4e4\uc5b4\uac00\uc11c \ub17c\ubb38\uc744 \uc4f8 \ub54c\uc600\ub2e4. \ub17c\ubb38 \uc8fc\uc81c\ub85c \ubb50 \ud558\ub098\ub97c \uac00\uc838\uac14\ub2e4\uac00 \uc785\uc774 \uc880 \uac78\uac78\ud55c \uad50\uc218\ub2d8\uaed8 \uac70\uc758 \ubaa8\uc695 \uc218\uc900\uc758 \ud3c9\uac00\ub97c \ub4e3\uace0 \ub098\uc654\ub294\ub370, \uc9c0\uae08 \uc0dd\uac01\ud574\ubcf4\uba74 \uadf8 \uad50\uc218\ub2d8 \uadf8\ub798\ub3c4 \ucc29\ud588\ub2e4\ub294 \uc0dd\uac01\uc774 \ub4e0\ub2e4. \uc774\ub7f0 \ub9d0\ub3c4 \uc548 \ub418\ub294\uac70 \ud558\uc9c0\ub9d0\uace0 \uc8fc\uc81c \uc81c\ub300\ub85c \uc7a1\uc73c\ub77c\uace0 \ub9ac\uc2a4\ud2b8\ub97c \ucb48\uc6b1 \ubf51\uc544\uc8fc\uc168\ub294\ub370, \uadf8 \uc608\uc2dc\ub4e4 \ubcf4\uba74\uc11c \uc815\ub9d0 \ub208\ubb3c\uc774 \ucc14\ub054 \ub098\ub354\ub77c. \uc8fc\uc81c\ub77c\uace0 \ubf51\uc544\uc8fc\uc2dc\ub294 \ub9ac\uc2a4\ud2b8\uc5d0 \uc788\ub294 \ub0b4\uc6a9\ub4e4\uc744 \uc5b4\ub5bb\uac8c \ud14c\uc2a4\ud2b8\ud558\ub294\uc9c0 \ub2e4 \uc218\uc5c5\uc2dc\uac04\uc5d0 \ubc30\uc6e0\ub294\ub370, \uc2e4\uc81c\ub85c \uc774\ub7f0 \ubc29\uc2dd\uc758 \ud14c\uc2a4\ud2b8\ub97c \ud558\uaca0\ub2e4\ub294 \uc0dd\uac01\uc744 \uadf8\uc804\uae4c\uc9c0 \ud55c\ubc88\ub3c4 \ud574 \ubcf8 \uc801\uc774 \uc5c6\uc5c8\ub2e4.<\/p>\n

\ube44\uc2fc \ub3c8 \ub0b4\uace0 \uacf5\ubd80\ud558\ub7ec\uc640\uc11c \uc5ec\ud0dc\uae4c\uc9c0 \ub2f5\ub2f5\ud55c \uacf5\ubd80\ub9cc \ud558\uace0 \uc788\uc5c8\ub2e4\ub294 \ucabd\ud314\ub9bc\uc5d0 \uc18d\uc73c\ub85c \uc6b8\uc5c8\ub2e4.<\/p>\n

\uadf8 \ubd84\uc218\ub839\uac19\uc740 \uc0ac\uac74 \uc774\ud6c4\ub85c, \uc5b4\ub5a4 \ud1b5\uacc4 \ubaa8\ub378\uc744 \uc368\uc11c \ud14c\uc2a4\ud2b8\ud574\uc57c\ub418\uaca0\ub2e4\ub294 \uadf8\ub9bc\uc744 \uba38\ub9bf\uc18d\uc73c\ub85c \uadf8\ub9b4 \uc218 \uc788\uac8c \ub418\uc5c8\uc73c\ub2c8 \uadf8 \uad50\uc218\ub2d8\uaed8 \ucc38 \uac10\uc0ac\ud574\uc57c\ub41c\ub2e4 \uc2f6\ub2e4. (\ubb3c\ub860 \uadf8 \ub54c \uac19\uc774 \uc218\uc5c5 \ub4e4\uc5c8\ub358 \uce5c\uad6c\ub4e4 \ub300\ub2e4\uc218\uac00 \uc544\uc9c1\ub3c4 \uadf8 \uad50\uc218\ub2d8\uc758 \ub3c5\uc124\uc5d0 \ub9ce\uc740 \ubc18\uac10\uc744 \uac16\uace0 \uc788\uae30\ub294 \ud558\ub2e4 \u314b\u314b)<\/p>\n

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[\ucd9c\ucc98] https:\/\/blog.pabii.co\/5-skillsets-for-data-scientists\/<\/p>\n<\/div>\n<\/div>\n

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\ub370\uc774\ud130 \uacfc\ud559\uc790\uac00 \uac16\ucdb0\uc57c \ud560 5\uac00\uc9c0 \uc2a4\ud0ac\uc14b   \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\uc2a4, \ub370\uc774\ud130 \uacfc\ud559, \ub370\uc774\ud130 \uacfc\ud559\uc790, \uba38\uc2e0\ub7ec\ub2dd, \ub525\ub7ec\ub2dd, R \uc8fc\ubcc0\uc5d0\uc11c \ub370\uc774\ud130 \uc0ac\uc774\uc5b8\ud2f0\uc2a4\ud2b8\uac00 \ub420\ub824\uba74 \uc5b4\ub5a4 \uacf5\ubd80\ub97c \ud574\uc57c\ub418\ub294\uc9c0 \ubb3b\ub294 \uacbd\uc6b0\uac00 \ucc38 \ub9ce\ub2e4. \uc804\uc5d0 \ub2e4\ub154\ub358 \ud06c\ub9ac\ud14c\uc624\ub77c\ub294 \ud504\ub791\uc2a4 \ub9ac\ud0c0\uac8c\ud305 \uad11\uace0 \ud68c\uc0ac\uc758 \uc138\uc77c\uc988 \ud300 \uc0ac\ub78c\ub4e4\uc740 Data Analyst \uc640 Data Scientist\uac00 \ubb34\uc2a8 \ucc28\uc774\uac00 \uc788\ub294\uc9c0 \uc798 \ubaa8\ub974\uace0 \ub0a0 \ub354\ub7ec \uadf8\ub0e5 \ub370\uc774\ud130 \ud300 \uc0ac\ub78c\uc774\ub77c\uace0 \ubd88\ub800\uace0, \uadf8 […]<\/p>\n

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