{"id":25387,"date":"2024-10-26T09:54:39","date_gmt":"2024-10-26T09:54:39","guid":{"rendered":"http:\/\/atmokpo.com\/w\/?p=25387"},"modified":"2024-11-26T08:01:56","modified_gmt":"2024-11-26T08:01:56","slug":"%eb%94%a5-%eb%9f%ac%eb%8b%9d%ec%9d%84-%ec%9d%b4%ec%9a%a9%ed%95%9c-%ec%9e%90%ec%97%b0%ec%96%b4-%ec%b2%98%eb%a6%ac%ec%99%80-bleu-scorebilingual-evaluation-understudy-score","status":"publish","type":"post","link":"https:\/\/atmokpo.com\/w\/25387\/","title":{"rendered":"\ub525 \ub7ec\ub2dd\uc744 \uc774\uc6a9\ud55c \uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc640 BLEU Score(Bilingual Evaluation Understudy Score)"},"content":{"rendered":"<p><body><\/p>\n<p>\uc790\uc5f0\uc5b4 \ucc98\ub9ac(Natural Language Processing, NLP)\ub294 \uc778\uac04\uc758 \uc5b8\uc5b4\ub97c \uc774\ud574\ud558\uace0 \ucc98\ub9ac\ud558\ub294 \ucef4\ud4e8\ud130 \uacfc\ud559\uc758 \ud55c \ubd84\uc57c\ub85c, \ucd5c\uadfc \uba87 \ub144\uac04 \ub525 \ub7ec\ub2dd\uc758 \ubc1c\uc804\uc5d0 \ud798\uc785\uc5b4 \ub9ce\uc740 \uc131\uacfc\ub97c \uc774\ub8e8\uc5b4\ub0c8\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \ub525 \ub7ec\ub2dd\uc744 \uc774\uc6a9\ud55c \uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc758 \uae30\ucd08 \uac1c\ub150\uacfc \ud568\uaed8, \uae30\uacc4 \ubc88\uc5ed \ubd84\uc57c\uc5d0\uc11c\uc758 \uc131\ub2a5 \ud3c9\uac00 \uc9c0\ud45c\uc778 <strong>BLEU Score<\/strong>\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \ub2e4\ub8f0 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<h2>1. \ub525 \ub7ec\ub2dd\uc758 \uae30\ucd08<\/h2>\n<p>\ub525 \ub7ec\ub2dd\uc740 \uc778\uacf5 \uc2e0\uacbd\ub9dd(Artificial Neural Networks)\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \ubd84\uc11d\ud558\ub294 \ubc29\ubc95\uc73c\ub85c, \uc5ec\ub7ec \uce35\uc758 \ub274\ub7f0\uc744 \ud1b5\ud574 \ud2b9\uc9d5(feature)\uc744 \ucd94\ucd9c\ud558\uace0, \uc774\ub97c \ud65c\uc6a9\ud558\uc5ec \uc608\uce21\uc744 \uc218\ud589\ud569\ub2c8\ub2e4. \ub525 \ub7ec\ub2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uc8fc\uc694 \ud2b9\uc9d5\uc744 \uac00\uc9c0\uace0 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\ube44\uc120\ud615\uc131<\/strong>: \ub525 \ub7ec\ub2dd\uc740 \ud65c\uc131\ud654 \ud568\uc218\ub97c \ud1b5\ud574 \ube44\uc120\ud615\uc131\uc744 \ub3c4\uc785\ud558\uc5ec, \ubcf5\uc7a1\ud55c \ud328\ud134\uc744 \ud559\uc2b5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li><strong>\ud2b9\uc9d5 \uc790\ub3d9 \ucd94\ucd9c<\/strong>: \uae30\uc874\uc758 \uba38\uc2e0 \ub7ec\ub2dd \ubaa8\ub378\uacfc\ub294 \ub2ec\ub9ac, \ub525 \ub7ec\ub2dd\uc740 \ub370\uc774\ud130\ub85c\ubd80\ud130 \uc790\ub3d9\uc73c\ub85c \ud2b9\uc9d5\uc744 \ucd94\ucd9c\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ud655\uc7a5\uc131<\/strong>: \ub300\ub7c9\uc758 \ub370\uc774\ud130\uc5d0 \ub300\ud574 \uc131\ub2a5\uc774 \uc9c0\uc18d\uc801\uc73c\ub85c \ud5a5\uc0c1\ub418\ub294 \uacbd\ud5a5\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>1.1 \uc2e0\uacbd\ub9dd\uc758 \uad6c\uc870<\/h3>\n<p>\uc2e0\uacbd\ub9dd\uc740 \uae30\ubcf8\uc801\uc73c\ub85c \uc785\ub825\uce35(Input Layer), \uc740\ub2c9\uce35(Hidden Layer), \ucd9c\ub825\uce35(Output Layer)\uc73c\ub85c \uad6c\uc131\ub429\ub2c8\ub2e4. \uac01 \uce35\uc740 \ub178\ub4dc(node)\ub77c\uace0 \ubd88\ub9ac\ub294 \ub274\ub7f0\uc73c\ub85c \uc774\ub8e8\uc5b4\uc838 \uc788\uc73c\uba70, \uc774\ub4e4\uc740 \uc11c\ub85c \uc5f0\uacb0\ub418\uc5b4 \uc815\ubcf4\ub97c \uc804\ub2ec\ud569\ub2c8\ub2e4. \uac01 \uc5f0\uacb0\uc740 \uac00\uc911\uce58(weight)\ub97c \uac00\uc9c0\uba70, \uc774\ub97c \ud1b5\ud574 \ub370\uc774\ud130\uc758 \ud750\ub984\uc774 \uc870\uc808\ub429\ub2c8\ub2e4.<\/p>\n<h3>1.2 \ub525 \ub7ec\ub2dd \ubaa8\ub378\uc758 \uc885\ub958<\/h3>\n<p>\ub525 \ub7ec\ub2dd\uc758 \uac00\uc7a5 \uc77c\ubc18\uc801\uc778 \ubaa8\ub378\uc5d0\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uac83\ub4e4\uc774 \uc788\uc2b5\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\ud569\uc131\uacf1 \uc2e0\uacbd\ub9dd(Convolutional Neural Networks, CNN)<\/strong>: \uc8fc\ub85c \uc774\ubbf8\uc9c0 \ub370\uc774\ud130 \ucc98\ub9ac\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/li>\n<li><strong>\uc21c\ud658 \uc2e0\uacbd\ub9dd(Recurrent Neural Networks, RNN)<\/strong>: \uc2dc\uac04\uc801 \uc815\ubcf4\ub97c \ucc98\ub9ac\ud558\ub294 \ub370 \uc720\uc6a9\ud55c \ubaa8\ub378\ub85c, \uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/li>\n<li><strong>\ud2b8\ub79c\uc2a4\ud3ec\uba38(Transformer)<\/strong>: \ucd5c\uc2e0 \uc790\uc5f0\uc5b4 \ucc98\ub9ac \ubd84\uc57c\uc5d0\uc11c \ub9ce\uc774 \uc0ac\uc6a9\ub418\ub294 \ubaa8\ub378\ub85c, \ubcd1\ub82c \ucc98\ub9ac\uc640 Attention \uba54\ucee4\ub2c8\uc998\uc744 \ud65c\uc6a9\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>2. \uc790\uc5f0\uc5b4 \ucc98\ub9ac(NLP)<\/h2>\n<p>\uc790\uc5f0\uc5b4 \ucc98\ub9ac\ub294 \uc778\uac04\uc774 \uc0ac\uc6a9\ud558\ub294 \uc5b8\uc5b4\ub97c \ucef4\ud4e8\ud130\uac00 \uc774\ud574\ud558\uace0 \ucc98\ub9ac\ud560 \uc218 \uc788\ub3c4\ub85d \ud558\ub294 \uae30\uc220\uc785\ub2c8\ub2e4. \uc774 \ubd84\uc57c\ub294 \ud14d\uc2a4\ud2b8 \ubd84\uc11d, \uae30\uacc4 \ubc88\uc5ed, \uac10\uc815 \ubd84\uc11d, \ub370\uc774\ud130 \ub9c8\uc774\ub2dd \ub4f1 \ub2e4\uc591\ud55c \uc751\uc6a9 \ubd84\uc57c\uc5d0\uc11c \uc0ac\uc6a9\ub429\ub2c8\ub2e4. \uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc5d0\uc11c\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \uc8fc\uc694 \uc791\uc5c5\ub4e4\uc774 \uc218\ud589\ub429\ub2c8\ub2e4:<\/p>\n<ul>\n<li><strong>\ud1a0\ud070\ud654(Tokenization)<\/strong>: \ubb38\uc7a5\uc744 \ub2e8\uc5b4 \ub2e8\uc704\ub85c \ucabc\uac1c\ub294 \uacfc\uc815\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\ud488\uc0ac \ud0dc\uae45(Part-of-Speech Tagging)<\/strong>: \uac01 \ub2e8\uc5b4\uc5d0 \ub300\ud574 \ud488\uc0ac\ub97c \ubd80\uc5ec\ud558\ub294 \uc791\uc5c5\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\uac1c\uccb4\uba85 \uc778\uc2dd(Named Entity Recognition)<\/strong>: \uc778\ubb3c, \uc7a5\uc18c, \uae30\uad00 \ub4f1\uc744 \uc2dd\ubcc4\ud558\ub294 \uae30\uc220\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\uac10\uc815 \ubd84\uc11d(Sentiment Analysis)<\/strong>: \ud14d\uc2a4\ud2b8\uc758 \uac10\uc815\uc744 \ubd84\uc11d\ud558\uc5ec \uae0d\uc815 \ub610\ub294 \ubd80\uc815\uc73c\ub85c \ubd84\ub958\ud558\ub294 \uacfc\uc815\uc785\ub2c8\ub2e4.<\/li>\n<li><strong>\uae30\uacc4 \ubc88\uc5ed(Machine Translation)<\/strong>: \ud55c \uc5b8\uc5b4\uc5d0\uc11c \ub2e4\ub978 \uc5b8\uc5b4\ub85c \ud14d\uc2a4\ud2b8\ub97c \ubc88\uc5ed\ud558\ub294 \uc791\uc5c5\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>2.1 \uae30\uacc4 \ubc88\uc5ed\uc758 \ub3d9\ud5a5<\/h3>\n<p>\uae30\uacc4 \ubc88\uc5ed\uc740 \uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc758 \ud575\uc2ec \uc751\uc6a9 \ubd84\uc57c \uc911 \ud558\ub098\ub85c, \uc9c0\ub09c \uba87 \ub144 \ub3d9\uc548 \ub208\ubd80\uc2e0 \ubc1c\uc804\uc744 \uc774\ub8e8\uc5c8\uc2b5\ub2c8\ub2e4. \uacfc\uac70\uc758 \uaddc\uce59 \uae30\ubc18 \ubc88\uc5ed \uc2dc\uc2a4\ud15c\uc5d0\uc11c, \ud1b5\uacc4 \uae30\ubc18 \ubc88\uc5ed \ubaa8\ub378\uc744 \uac70\uccd0, \ud604\uc7ac\uc758 \ub525 \ub7ec\ub2dd \uae30\ubc18 \ubaa8\ub378\ub85c \ubc1c\uc804\ud558\uc600\uc2b5\ub2c8\ub2e4. \ud2b9\ud788 <strong>seq2seq(Sequence-to-Sequence)<\/strong> \ubaa8\ub378\uacfc <strong>\ud2b8\ub79c\uc2a4\ud3ec\uba38(Transformer)<\/strong> \ubaa8\ub378\uc774 \uae30\uacc4 \ubc88\uc5ed\uc5d0 \ub9ce\uc740 \ud601\uc2e0\uc744 \uac00\uc838\uc654\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>3. BLEU Score<\/h2>\n<p><strong>BLEU(\ubc14\uc774\ub9c1\ud058\ub7ec \ud3c9\uac00 \ubcf4\uc870 \uc810\uc218)<\/strong>\ub294 \uae30\uacc4 \ubc88\uc5ed\uc758 \ud488\uc9c8\uc744 \ud3c9\uac00\ud558\uae30 \uc704\ud574 \uc124\uacc4\ub41c \uc9c0\ud45c\uc774\uba70, \ubc88\uc5ed \uacb0\uacfc\uc640 \ucc38\uc870 \ubc88\uc5ed(reference translation) \uac04\uc758 n-\uadf8\ub7a8 \uc77c\uce58\ub3c4\ub97c \uce21\uc815\ud558\uc5ec \uc810\uc218\ub97c \uc0b0\ucd9c\ud569\ub2c8\ub2e4.<\/p>\n<h3>3.1 BLEU Score\uc758 \uc815\uc758<\/h3>\n<p>BLEU Score\ub294 \ub2e4\uc74c\uacfc \uac19\uc740 \ubc29\uc2dd\uc73c\ub85c \uacc4\uc0b0\ub429\ub2c8\ub2e4:<\/p>\n<ul>\n<li>n-\uadf8\ub7a8 \uc77c\uce58\ub3c4: \uae30\uacc4 \ubc88\uc5ed \uacb0\uacfc\uc640 \ucc38\uc870 \ubc88\uc5ed \uac04\uc758 n-\uadf8\ub7a8 \uc77c\uce58\uc728\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc815\ubc00\ub3c4(Precision): n-\uadf8\ub7a8\uc758 \uc815\ubc00\ub3c4\ub97c \uacc4\uc0b0\ud558\uc5ec, \ubaa8\ub378\uc774 \uc0dd\uc131\ud55c \uacb0\uacfc\uc758 \uc9c8\uc744 \ud3c9\uac00\ud569\ub2c8\ub2e4.<\/li>\n<li>\uae38\uc774 \ud328\ub110\ud2f0(Brevity Penalty): \uc0dd\uc131\ub41c \ubc88\uc5ed\uc758 \uae38\uc774\uac00 \ucc38\uc870 \ubc88\uc5ed\uc758 \uae38\uc774\uc5d0 \ube44\ud574 \ub108\ubb34 \uc9e7\uc740 \uacbd\uc6b0 \ud328\ub110\ud2f0\ub97c \ubd80\uc5ec\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h3>3.2 BLEU Score \uc0b0\ucd9c \uacf5\uc2dd<\/h3>\n<p>BLEU \uc810\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \uacc4\uc0b0\ub429\ub2c8\ub2e4:<\/p>\n<p><code>BLEU = BP * exp(\u2211(p_n)\/N)<\/code><\/p>\n<p>\uc5ec\uae30\uc11c:<\/p>\n<ul>\n<li><code>BP<\/code>: \uae38\uc774 \ud328\ub110\ud2f0<\/li>\n<li><code>p_n<\/code>: n-\uadf8\ub7a8\uc758 \uc815\ubc00\ub3c4<\/li>\n<li><code>N<\/code>: \uace0\ub824\ud560 n-\uadf8\ub7a8\uc758 \uc218 (\uc608: 1\uc5d0\uc11c 4\uae4c\uc9c0)<\/li>\n<\/ul>\n<h3>3.3 BLEU Score\uc758 \uc7a5\ub2e8\uc810<\/h3>\n<p>BLEU \uc810\uc218\uc758 \uc7a5\uc810:<\/p>\n<ul>\n<li>\uc790\ub3d9\ud654 \uac00\ub2a5: \uc0ac\ub78c\uc758 \uac1c\uc785 \uc5c6\uc774 \uae30\uacc4\uc801\uc73c\ub85c \ud3c9\uac00\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/li>\n<li>\uc77c\uad00\uc131: \uc5ec\ub7ec \ud3c9\uac00\uc790 \uac04\uc758 \uc77c\uad00\ub41c \ud3c9\uac00\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/li>\n<li>\ube60\ub978 \uacc4\uc0b0: \ube44\uad50\uc801 \uac04\ub2e8\ud55c \uacc4\uc0b0\uc73c\ub85c \ube60\ub974\uac8c \uc810\uc218\ub97c \uc0b0\ucd9c\ud569\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>BLEU \uc810\uc218\uc758 \ub2e8\uc810:<\/p>\n<ul>\n<li>\uad6d\uc18c\uc801 \uc77c\uce58: n-\uadf8\ub7a8 \uc131\ubd84\ub9cc \ubcf8\ub2e4\ub294 \uc810\uc5d0\uc11c \ubb38\ub9e5\uc744 \uc798 \ubc18\uc601\ud558\uc9c0 \ubabb\ud569\ub2c8\ub2e4.<\/li>\n<li>\uc778\uac04 \ud3c9\uac00\uc640\uc758 \uad34\ub9ac: BLEU \uc810\uc218\uac00 \ub192\ub2e4\uace0 \ud574\uc11c \ubc18\ub4dc\uc2dc \uc778\uac04 \ud3c9\uac00\ub3c4 \uae0d\uc815\uc801\uc774\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4.<\/li>\n<\/ul>\n<h2>4. \uacb0\ub860<\/h2>\n<p>\ub525 \ub7ec\ub2dd\uc744 \uc774\uc6a9\ud55c \uc790\uc5f0\uc5b4 \ucc98\ub9ac\ub294 \uc624\ub298\ub0a0 \uc815\ubcf4 \uae30\uc220\uc758 \ud575\uc2ec \uc694\uc18c\ub85c \uc790\ub9ac\uc7a1\uace0 \uc788\uc73c\uba70, BLEU Score\ub294 \uc774\ub7ec\ud55c \uae30\uc220\uc758 \uc131\ub2a5\uc744 \uc815\ub7c9\uc801\uc73c\ub85c \ud3c9\uac00\ud558\ub294 \uc911\uc694\ud55c \ub3c4\uad6c\uc785\ub2c8\ub2e4. \uc55e\uc73c\ub85c\uc758 \uc5f0\uad6c\ub294 \ub354 \ub098\uc544\uac00 \uc790\uc5f0\uc5b4 \ucc98\ub9ac \ubd84\uc57c\uc758 \ud488\uc9c8\uc744 \ub192\uc774\uace0, \uc778\uac04\uc758 \uc5b8\uc5b4\ub97c \ub354 \uc798 \uc774\ud574\ud558\uace0 \uc0ac\uc6a9\ud560 \uc218 \uc788\ub294 \ubc29\ud5a5\uc73c\ub85c \ub098\uc544\uac00\uc57c \ud560 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<p>\uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc640 \uad00\ub828\ub41c \uae30\uacc4 \ubc88\uc5ed \uae30\uc220\uc774 \uacc4\uc18d \ubc1c\uc804\ud568\uc5d0 \ub530\ub77c, BLEU Score\uc640 \uac19\uc740 \ud3c9\uac00 \uc9c0\ud45c\uc758 \uc9c0\uc18d\uc801\uc778 \uac1c\uc120\ub3c4 \uc911\uc694\ud558\uba70, \uc774\ub294 \uae30\uc220 \ubc1c\uc804\uacfc \ud568\uaed8 \uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc758 \uc801\uc6a9 \ubc94\uc704\ub97c \ub354\uc6b1 \ub113\ud790 \uac83\uc785\ub2c8\ub2e4. \uc774\uc81c \uc6b0\ub9ac\ub294 \ub525 \ub7ec\ub2dd\uacfc \uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc758 \ubc1c\uc804\uc774 \uc6b0\ub9ac \uc0b6\uc5d0 \ubbf8\uce58\ub294 \uc601\ud5a5\uc744 \uace0\ubbfc\ud574\uc57c \ud560 \uc2dc\uc810\uc5d0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<p><\/body><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\uc790\uc5f0\uc5b4 \ucc98\ub9ac(Natural Language Processing, NLP)\ub294 \uc778\uac04\uc758 \uc5b8\uc5b4\ub97c \uc774\ud574\ud558\uace0 \ucc98\ub9ac\ud558\ub294 \ucef4\ud4e8\ud130 \uacfc\ud559\uc758 \ud55c \ubd84\uc57c\ub85c, \ucd5c\uadfc \uba87 \ub144\uac04 \ub525 \ub7ec\ub2dd\uc758 \ubc1c\uc804\uc5d0 \ud798\uc785\uc5b4 \ub9ce\uc740 \uc131\uacfc\ub97c \uc774\ub8e8\uc5b4\ub0c8\uc2b5\ub2c8\ub2e4. \uc774 \uae00\uc5d0\uc11c\ub294 \ub525 \ub7ec\ub2dd\uc744 \uc774\uc6a9\ud55c \uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc758 \uae30\ucd08 \uac1c\ub150\uacfc \ud568\uaed8, \uae30\uacc4 \ubc88\uc5ed \ubd84\uc57c\uc5d0\uc11c\uc758 \uc131\ub2a5 \ud3c9\uac00 \uc9c0\ud45c\uc778 BLEU Score\uc5d0 \ub300\ud574 \uc790\uc138\ud788 \ub2e4\ub8f0 \uac83\uc785\ub2c8\ub2e4. 1. \ub525 \ub7ec\ub2dd\uc758 \uae30\ucd08 \ub525 \ub7ec\ub2dd\uc740 \uc778\uacf5 \uc2e0\uacbd\ub9dd(Artificial Neural Networks)\uc744 &hellip; <a href=\"https:\/\/atmokpo.com\/w\/25387\/\" class=\"more-link\">\ub354 \ubcf4\uae30<span class=\"screen-reader-text\"> &#8220;\ub525 \ub7ec\ub2dd\uc744 \uc774\uc6a9\ud55c \uc790\uc5f0\uc5b4 \ucc98\ub9ac\uc640 BLEU Score(Bilingual Evaluation Understudy 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