{"id":14604,"date":"2023-12-29T05:23:00","date_gmt":"2023-12-29T05:23:00","guid":{"rendered":"https:\/\/blog.selectstar.ai\/ko\/?p=14604"},"modified":"2024-10-31T06:57:03","modified_gmt":"2024-10-31T06:57:03","slug":"perceptron-basics","status":"publish","type":"post","link":"https:\/\/blog.selectstar.ai\/ko\/perceptron-basics\/","title":{"rendered":"Chapter1. \uc778\uacf5 \uc9c0\ub2a5\uacfc \ud559\uc2b5 \ub370\uc774\ud130-1.1\uc778\uacf5 \uc2e0\uacbd\ub9dd \uae30\ucd08, \ud37c\uc149\ud2b8\ub860"},"content":{"rendered":"\t\t
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\uae30\ucd08 \uc2e0\uacbd\ub9dd \uad6c\uc870\uc640 \ud568\uaed8 Data Centric AI \ud328\ub7ec\ub2e4\uc784\uc744 \uc18c\uac1c\ud569\ub2c8\ub2e4. \uc778\uacf5 \uc9c0\ub2a5 \u2018\ud559\uc2b5\u2019\uc774\ub780 \ubb34\uc5c7\uc774\uace0 \uc5b4\ub5bb\uac8c \uc9c4\ud589\ub418\ub294\uc9c0, \uac04\ub2e8\ud55c \uc608\uc81c\uc640 \uc0ac\ub840\ub97c \ud1b5\ud574 \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>

*\ubcf8 \ub0b4\uc6a9\uc740 \uc140\ub809\ud2b8\uc2a4\ud0c0\uc758 '23\/24 \uc778\uacf5\uc9c0\ub2a5 \uc778\uc0ac\uc774\ud2b8' \ub9e4\uac70\uc9c4\uc5d0\uc11c \ubc1c\ucdcc\ud55c \uac83\uc785\ub2c8\ub2e4.<\/em><\/p><\/p><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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1.1 \uc778\uacf5 \uc2e0\uacbd\ub9dd \uae30\ucd08, \ud37c\uc149\ud2b8\ub860<\/h3><\/div><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\ucef4\ud4e8\ud130\uc758 \uc5b4\uadfc \u2018Compute\u2019\ub294 \u2018\uacc4\uc0b0\ud558\ub2e4\u2019\ub294 \ub73b\uc785\ub2c8\ub2e4. 1940\ub144\ub300, \ucd08\uae30 \ucef4\ud4e8\ud130\uc758 \ucd5c\ub300 \ubaa9\uc801\uc740 \uc218\ud559 \ubb38\uc81c\ub97c \uace0\uc18d\uc73c\ub85c \ud478\ub294 \uc77c\uc774\uc5c8\uc2b5\ub2c8\ub2e4. \ub2f9\uc2dc \uad6d\uac00\uc801 \uacfc\uc81c\uc600\ub358 \ud56d\uacf5 \uc6b0\uc8fc \ubd84\uc57c\uc5d0\uc11c \uc218\ud559\uc801 \uacc4\uc0b0\uc744 \ub9ce\uc774 \uc694\uad6c\ud588\uae30 \ub54c\ubb38\uc774\uc8e0. \uacc4\uc0b0\ubfd0 \uc544\ub2c8\ub77c \ubaa8\ub4e0 \uc77c\uc0c1\uacfc \ube44\uc988\ub2c8\uc2a4\uc5d0 \ud65c\uc6a9\ub418\ub294 \uc624\ub298\ub0a0 \ucef4\ud4e8\ud130\uc758 \ubaa8\uc2b5\uacfc\ub294 \ub9e4\uc6b0 \ub2e4\ub985\ub2c8\ub2e4.<\/p>

\u200b<\/p>

\uc778\uacf5 \uc9c0\ub2a5\ub3c4 \ub9c8\ucc2c\uac00\uc9c0\uc785\ub2c8\ub2e4. \ucd08\uae30 \uc778\uacf5 \uc2e0\uacbd\ub9dd\uc740 \uc9c0\uae08\uc758 DALL-E\ub098 ChatGPT\ucc98\ub7fc \ubcf5\uc7a1\ud55c \uae00\uacfc \uadf8\ub9bc\uc774 \uc544\ub2c8\ub77c, \ub2e8\uc21c\ud788 \uc218\ub97c \ucc98\ub9ac\ud558\ub294 \uc54c\uace0\ub9ac\uc998\uc774\uc5c8\uc2b5\ub2c8\ub2e4. 1957\ub144 \ucf54\ub12c \ud56d\uacf5 \uc5f0\uad6c\uc18c\uc758 \ud504\ub791\ud06c \ub85c\uc820\ube14\ub77c\ud2b8\ub294 \uc778\uacf5 \uc2e0\uacbd\ub9dd \u2018\ud37c\uc149\ud2b8\ub860\u2019\uc744 \uace0\uc548\ud588\ub294\ub370\uc694, \ub3d9\ubb3c\uc758 \uc2e0\uacbd\uacc4\ub97c \uae30\ubc18\uc73c\ub85c \ub9cc\ub4e4\uc5c8\uae30\uc5d0 \uac1c\ub150\uc801\uc73c\ub85c\ub098 \uadf8 \ud615\ud0dc\ub85c\ub098 \ube44\uc2b7\ud55c \ubd80\ubd84\uc774 \ub9ce\uc2b5\ub2c8\ub2e4. \ud37c\uc149\ud2b8\ub860(Perceptron)\uc774\ub77c\ub294 \uc6a9\uc5b4 \ub610\ud55c \ud37c\uc149\uc158(Perception)\uacfc \ub274\ub7f0(neuron) \ub450 \ub2e8\uc5b4\uc758 \uc870\ud569\uc785\ub2c8\ub2e4.<\/p>

\u200b<\/p>

\ud37c\uc149\ud2b8\ub860\uc740 \ub2e4\uc218\uc758 \uc785\ub825\uc73c\ub85c\ubd80\ud130 \ud558\ub098\uc758 \uacb0\uacfc\ub97c \ucd9c\ub825\ud558\ub294 \uc54c\uace0\ub9ac\uc998\uc785\ub2c8\ub2e4. \uc22b\uc790 \uc5ec\ub7ec \uac1c\ub97c \uc785\ub825\ud558\uba74, \uadf8\uc5d0 \ub300\ud55c \ub2f5\uc744 \ud558\ub098 \ucd9c\ub825\ud558\uc9c0\uc694. \uad6c\uc870\ub294 \ub2e8\uc21c\ud558\uc9c0\ub9cc \uc774\ub97c \ubc18\ubcf5\ud558\uace0 \uacb9\uce58\uc5b4 \ubc1c\uc804\uc2dc\ud0a8\ub2e4\uba74 \ub2e4\uc591\ud55c \uc791\uc5c5\uc744 \uc218\ud589\ud560 \uc218 \uc788\ub294 \uc778\uacf5\uc9c0\ub2a5\uc744 \ub9cc\ub4e4 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubb34\uc218\ud788 \ub9ce\uc740 \uc815\ubcf4\ub97c \uc785\ub825\uac12\uc73c\ub85c \ud65c\uc6a9\ud574, \ucd5c\uace0 \uc218\uc900\uc758 \uc758\uc0ac \uacb0\uc815\uacfc \ucd94\ub860\uc744 \uc218\ud589\ud560 \uc218 \uc788\uc9c0\uc694. \uadf9\ub2e8\uc801\uc73c\ub85c\ub294 \ub0a0\uc528 \uc608\uce21\uc744 \uc704\ud574 \uc9c0\uad6c \ubc18\ub300\ud3b8\uc5d0 \uc0ac\ub294 \ub098\ube44\uc758 \ub0a0\uac2f\uc9d3 \uc5ec\ubd80\ub97c \uc785\ub825\uac12\uc73c\ub85c \ud65c\uc6a9\ud560 \uc218\ub3c4 \uc788\uaca0\uc2b5\ub2c8\ub2e4. \uadf8\ub9cc\ud07c \uc815\uad50\ud558\uace0 \ubcf5\uc7a1\ud55c \uc5f0\uc0b0\uc73c\ub85c \uc6b0\uc218\ud55c \uacb0\uad0f\uac12\uc744 \ub0b4\ubcf4\uc785\ub2c8\ub2e4. \uc694\uc998\uc740 \uc778\ud130\ub137\uc5d0 \uc788\ub294 \ubc29\ub300\ud55c \ub370\uc774\ud130\ub97c \ud559\uc2b5\ud55c ChatGPT\uac00 \uc774\ub7f0 \uc5ed\ud560\uc744 \uc5b4\ub290 \uc815\ub3c4 \ud558\ub294 \ub4ef\uc2f6\ub124\uc694.<\/p>

\u200b<\/p>

\uadf8\ub807\ub2e4\uba74 \ud37c\uc149\ud2b8\ub860\uc740 \uc5b4\ub5bb\uac8c \ub2e4\uc591\ud55c \uc694\uc18c\ub4e4\uc744 \uacb0\uacfc\ub97c \ucd9c\ub825\ud560\uae4c\uc694? \uc704 \uadf8\ub9bc\uc740 \ud37c\uc149\ud2b8\ub860\uc744 \ub3c4\uc2dd\ud654\ud558\uc5ec \ub098\ud0c0\ub0b8 \uc774\ubbf8\uc9c0\uc785\ub2c8\ub2e4.<\/p>

\u00a0<\/p>

\uc785\ub825\uac12(Input), \uac00\uc911\uce58(Weight), \ud65c\uc131\ud654 \ud568\uc218(Activation Function) \ub4f1\uc758 \ud0a4\uc6cc\ub4dc\uac00 \ub208\uc5d0 \ub744\ub294 \ub370\uc694, \uba3c\uc800 \uc218\uc2dd \uac1c\ub150\uc744 \uc124\uba85\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. \ud558\ub098\uc758 \uacb0\uacfc \ubc0f \ud604\uc0c1\uc5d0 \uc601\ud5a5\uc744 \ubbf8\uce58\ub294 \uc694\uc18c\ub294 \ub2e4\uc591\ud569\ub2c8\ub2e4. \ud569\ub9ac\uc801\uc778 \uc758\uc0ac \uacb0\uc815 \ubc0f \ucd94\ub860\uc744 \uc704\ud574\uc11c\ub294 \ub2e4\uc591\ud55c \ubcc0\uc778\uc744 \uadf8 \uc911\uc694\ub3c4\uc5d0 \ub530\ub77c \ub2e4\ub974\uac8c \ubc18\uc601\ud574\uc57c \ud569\ub2c8\ub2e4. \uc608\ub97c \ub4e4\uc5b4 \uc544\ud30c\ud2b8 \uac00\uaca9\uc744 \uacb0\uc815\ud558\ub294 \uc694\uc18c\ub85c\ub294 \ud559\uad70, \uad50\ud1b5, \uc5f0\uc2dd, \uae08\ub9ac \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7f0 \ubcc0\uc778 \uc911\uc5d0\uc11c\ub3c4 \uc0c1\ub300\uc801\uc73c\ub85c \uc911\uc694\ud55c \uc694\uc18c\uac00 \uc788\uace0 \uadf8\ub807\uc9c0 \uc54a\uc740 \uc694\uc18c\uac00 \uc788\uc2b5\ub2c8\ub2e4.<\/p>

\u200b<\/p>

\ub9cc\uc57d \uae08\ub9ac\uac00 \uac00\uc7a5 \ud070 \uc601\ud5a5\uc744 \ubbf8\uce5c\ub2e4\uba74, \uc544\ud30c\ud2b8 \uac00\uaca9\uc744 \uc608\uce21\ud558\ub294 \uacc4\uc0b0\uc2dd\uc740 \u2018\uae08\ub9ac\u2019\ub97c \ud06c\uac8c \ubc18\uc601\ud558\ub3c4\ub85d \uad6c\uc131\ub3fc\uc57c \ud569\ub2c8\ub2e4. \uc544\ub798 \uc2dd\uc5d0\uc11c\ub294 \u2018W, \uac00\uc911\uce58(Weight)\u2019 \uac12\uc774 \uadf8 \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. \ud37c\uc149\ud2b8\ub860\uc740 \uba3c\uc800 \uc785\ub825\uac12($x_{1}$ , $x_{2}$)\ub9c8\ub2e4 \uc815\ud574\uc9c4 \uac00\uc911\uce58\ub97c ($w_{1}$, $w_{2}$)\ub97c \uacf1\ud574 \ubaa8\ub450 \ub354\ud569\ub2c8\ub2e4. \uadf8 \uacb0\uacfc\ub97c \uac00\uc911\ud569(Weighted Sum)\uc774\ub77c\uace0 \ud558\ub294\ub370\uc694, \uacc4\uc0b0 \uacfc\uc815\uc5d0\uc11c \u2018\ud3b8\ud5a5(Bias)\u2019\uc774\ub77c\uace0 \ud558\ub294 \uc0c1\uc218\ub97c \ub354\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>

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\uc704 \uc2dd\uc740 w\ub85c \ud45c\ud604\ub41c \uac00\uc911\uce58\uc758 (\uc808\ub300)\uac12\uc774 \ud074\uc218\ub85d \ubcc0\uc778 x\ub97c \ub354 \ud06c\uac8c \ubc18\uc601\ud569\ub2c8\ub2e4. \uc2dd\uc744 \ud1b5\ud574 \uac00\uc911\ud569\uc744 \uad6c\ud588\ub2e4\uba74, \ub2e4\uc74c\uc740 \u2018\ud65c\uc131\ud654 \ud568\uc218(Activation Function)\u2019\uc5d0 \uac00\uc911\ud569\uc744 \uc785\ub825\ud569\ub2c8\ub2e4. \uc774\uc720\ub294 \uc2e0\uacbd\ub9dd\uc774 \u2018\ube44\uc120\ud615 \ubb38\uc81c\ub97c \ud559\uc2b5\ud558\uace0, \ub354 \ubcf5\uc7a1\ud55c \ud328\ud134\uc744 \uc778\uc2dd\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\uae30 \uc704\ud568\u2019\uc778\ub370\uc694, \ud45c\ud604\uc774 \uc5b4\ub824\uc6b0\ub2c8 \uad6c\uccb4\uc801\uc778 \uc0ac\ub840\ub97c \uba3c\uc800 \ub4e4\uc5b4\ubcf4\uaca0\uc2b5\ub2c8\ub2e4.<\/p>

\u200b<\/p>

*\uc5b4\ub5a4 \ud559\uc0dd\uc774 \uc2dc\ud5d8\uc5d0 \ud1b5\uacfc\ud560 \uc218 \uc788\uc744\uc9c0 \uc5c6\uc744\uc9c0 \uc608\uce21\ud558\ub294 \uc2e0\uacbd\ub9dd\uc744 \uc124\uacc4\ud558\uace0\uc790 \ud569\ub2c8\ub2e4. \uc2dc\ud5d8 \uc810\uc218\uac00 70\uc810 \uc774\uc0c1\uc774\uba74 \ud1b5\uacfc, \ubbf8\ub9cc\uc774\uba74 \ubd88\ud1b5\uc785\ub2c8\ub2e4. \uba3c\uc800 \ud559\uc0dd\uc774 \uc2dc\ud5d8\uc5d0\uc11c \uba87 \uc810\uc744 \ubc1b\uc744\uc9c0 \uc608\uce21\ud574\uc57c \ud569\ub2c8\ub2e4. \uc2dc\ud5d8 \uc810\uc218\uc5d0 \uc601\ud5a5 \ub07c\uce58\ub294 \ubcc0\uc778\uc73c\ub85c\ub294 \u2018\uc9c1\uc804 \uc2dc\ud5d8 \uc810\uc218\u2019 \u2018\ub0a8\uc740 \uc77c\uc218\u2019 \u2018\ud558\ub8e8 \uacf5\ubd80 \uc2dc\uac04\u2019 \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ubcc0\uc778 \uac01\uac01\uc740 \uc2e0\uacbd\ub9dd\uc758 \uc785\ub825\uac12\uc73c\ub85c \uc0bc\uc544, \uadf8 \uc911\uc694\ub3c4\uc5d0 \ub530\ub77c \uc0ac\uc804 \uc124\uc815\ub41c \uac00\uc911\uce58\ub97c \uacf1\ud560 \uc608\uc815\uc785\ub2c8\ub2e4.<\/p>

\u200b<\/p>

\uba3c\uc800 \u2018\uc9c1\uc804 \uc2dc\ud5d8 \uc810\uc218\u2019 \u2018\ub0a8\uc740 \uc77c\uc218\u2019 \u2018\ud558\ub8e8 \uacf5\ubd80 \uc2dc\uac04\u2019 \ubcc0\uc778 \uc138 \uac1c\uc758 \uac00\uc911\uce58\ub97c \uac01\uac01 [0.9, 1.0, 2.0]\uc73c\ub85c \uc124\uc815\ud558\uaca0\uc2b5\ub2c8\ub2e4. \uadf8\ub807\ub2e4\uba74 \uc774\uc804 \uc2dc\ud5d8\uc5d0\uc11c \u201870\uc810\u2019\uc744 \ub9de\uc740 \ud559\uc0dd\uc774 \ub0a8\uc740 \u20182\uc77c\u2019 \ub3d9\uc548 \ud558\ub8e8 \u20183\uc2dc\uac04\u2019\uc529 \uacf5\ubd80\ud55c\ub2e4\uba74 \uadf8 \uc810\uc218\ub294 (70*0.9) + (2*1.0) + (3*2.0) =71\uc810\uc73c\ub85c \uc608\uc0c1\ub429\ub2c8\ub2e4. 71\uc810\uc740 \ub118\uc740 \ud559\uc0dd\uc740 \ud1b5\uacfc\uc774\ub2c8, \uc785\ub825\uac12\uc774 70 \uc774\uc0c1\uc774\uba74 \u2018\ud1b5\uacfc\u2019, 70 \uc774\ud558\uba74 \u2018\ubd88\ud1b5\u2019\uc744 \ucd9c\ub825\ud558\ub294 \ud65c\uc131\ud654 \ud568\uc218\ub97c \uc124\uc815\ud558\uba74 \uc644\uc131\uc785\ub2c8\ub2e4. \uc5ec\uae30\uc11c\ub294 \uc785\ub825\uac12\uc774 \uc784\uacc4\uac12(threshold)\uc744 \ub118\uc73c\uba74 1, \uadf8\ub807\uc9c0 \uc54a\uc73c\uba74 0\uc744 \ucd9c\ub825\ud558\ub294 \uacc4\ub2e8 \ud568\uc218(Step function)\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p><\/div><\/div><\/div><\/div><\/div><\/div>

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*63 + 2 + 6 = 71.<\/em><\/p><\/div><\/div><\/div><\/div><\/div><\/div>

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*\ud37c\uc149\ud2b8\ub860 \uc5f0\uc0b0 \uacfc\uc815<\/h3><\/div><\/div><\/div>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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\u200b1. \uac00\uc911\ud569 \uc5f0\uc0b0(Weighted Sum Operation)<\/strong><\/h5>
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\uc785\ub825 \ub370\uc774\ud130\uc640 \uac00\uc911\uce58(Weight)\ub97c \uacf1\ud55c \uac12\uc744 \ubaa8\ub450 \ub354\ud558\uc5ec \uac00\uc911\uce58 \ud569(Weighted Sum)\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/div><\/div><\/div><\/div><\/div><\/div>

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2. \ud65c\uc131\ud654 \ud568\uc218 \uc801\uc6a9<\/strong><\/h5>
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\uac00\uc911\ud569(Weighted Sum)\uacfc \uc0ac\uc804 \uc124\uc815\ud55c \uc784\uacc4\uac12\uc744 \ube44\uad50\ud574 \ucd5c\uc885 \ucd9c\ub825\uac12(Output)\uc744 \uad6c\ud569\ub2c8\ub2e4. \ub300\ud45c\uc801\uc778 \ud65c\uc131\ud654 \ud568\uc218\ub85c\ub294 \uc2dc\uadf8\ubaa8\uc774\ub4dc \ud568\uc218(Sigmoid function), ReLU(Rectified Linear Unit) \ud568\uc218 \ub4f1\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/div><\/div><\/div><\/div><\/div><\/div>

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\uc5ec\uae30\uae4c\uc9c0\uac00 \uc778\uacf5\uc2e0\uacbd\ub9dd\uc758 \ub2e8\uc704\uac00 \ub418\ub294 \ud37c\uc149\ud2b8\ub860\uc758 \uad6c\uc870\uc785\ub2c8\ub2e4. \ud754\ud788 \ub9d0\ud558\ub294 \uc778\uacf5\uc9c0\ub2a5\uc740 \uc774\ub7ec\ud55c \ud37c\uc149\ud2b8\ub860\uc744 \ubb34\uc218\ud788 \uc911\ucca9\uc2dc\ud0a8 \ub124\ud2b8\uc6cc\ud06c\uc785\ub2c8\ub2e4. \uae4a\uac8c \uc313\uc558\uae30\uc5d0 \uc2ec\uce35 \uc2e0\uacbd\ub9ddDNN(Deep Neural Network), \ub525 \ub7ec\ub2dd(Deep learning)\uc774\ub77c\uace0 \ud569\ub2c8\ub2e4.<\/p><\/div><\/div><\/div>

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1.2 \uc2ec\uce35 \uc2e0\uacbd\ub9dd, \u2018\ub525\ub7ec\ub2dd\u2019\uacfc \u2018\ud30c\ub77c\ubbf8\ud130\u2019<\/h3>

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1940\ub144\ub300,…<\/p>\n","protected":false},"author":1,"featured_media":14877,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","footnotes":""},"categories":[25],"tags":[],"table_tags":[],"class_list":["post-14604","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-insight"],"acf":[],"yoast_head":"\n\uc778\uacf5 \uc2e0\uacbd\ub9dd \uae30\ucd08: \ud37c\uc149\ud2b8\ub860 \uc774\ud574\ud558\uae30 - \uc140\ub809\ud2b8\uc2a4\ud0c0<\/title>\n<meta name=\"description\" content=\"\ud37c\uc149\ud2b8\ub860\uc73c\ub85c \uc778\uacf5 \uc2e0\uacbd\ub9dd\uc758 \uae30\ucd08\ub97c \uc774\ud574\ud558\uace0, \ub525\ub7ec\ub2dd \ubaa8\ub378\uc758 \uae30\ubcf8 \uc6d0\ub9ac\ub97c \ud559\uc2b5\ud558\uc138\uc694. \ud37c\uc149\ud2b8\ub860\uc758 \uad6c\uc870\uc640 \uc791\ub3d9 \ubc29\uc2dd\uc73c\ub85c AI \ud559\uc2b5\uc758 \uae30\ucd08\ub97c \ud0c4\ud0c4\ud558\uac8c 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