{"id":478216,"date":"2023-08-09T09:29:10","date_gmt":"2023-08-09T09:29:10","guid":{"rendered":""},"modified":"2023-09-05T11:16:18","modified_gmt":"2023-09-05T11:16:18","slug":"non-negative-matrix-factorization-nmf","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/kr\/wiki\/non-negative-matrix-factorization-nmf\/","title":{"rendered":"\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574(NMF)"},"content":{"rendered":"<p>NMF(Non-negative Matrix Factorization)\ub294 \ub370\uc774\ud130 \ubd84\uc11d, \ud2b9\uc9d5 \ucd94\ucd9c \ubc0f \ucc28\uc6d0 \ucd95\uc18c\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uac15\ub825\ud55c \uc218\ud559\uc801 \uae30\uc220\uc785\ub2c8\ub2e4. \uc2e0\ud638 \ucc98\ub9ac, \uc774\ubbf8\uc9c0 \ucc98\ub9ac, \ud14d\uc2a4\ud2b8 \ub9c8\uc774\ub2dd, \uc0dd\ubb3c\uc815\ubcf4\ud559 \ub4f1 \ub2e4\uc591\ud55c \ubd84\uc57c\uc5d0\uc11c \ub110\ub9ac \uc0ac\uc6a9\ub429\ub2c8\ub2e4. NMF\ub97c \uc0ac\uc6a9\ud558\uba74 \uc74c\uc218\uac00 \uc544\ub2cc \ud589\ub82c\uc744 \ub450 \uac1c \uc774\uc0c1\uc758 \uc74c\uc218\uac00 \uc544\ub2cc \ud589\ub82c\ub85c \ubd84\ud574\ud560 \uc218 \uc788\uc73c\uba70 \uc774\ub294 \uae30\uc800 \ubca1\ud130 \ubc0f \uacc4\uc218\ub85c \ud574\uc11d\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc774 \uc778\uc218\ubd84\ud574\ub294 \ubb38\uc81c\uc758 \ub9e5\ub77d\uc5d0\uc11c \uc74c\uc218 \uac12\uc774 \uc758\ubbf8\uac00 \uc5c6\ub294 \uc74c\uc218\uac00 \uc544\ub2cc \ub370\uc774\ud130\ub97c \ucc98\ub9ac\ud560 \ub54c \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<h2>NMF(Non-negative Matrix Factorization)\uc758 \uae30\uc6d0\uacfc \uadf8\uc5d0 \ub300\ud55c \uccab \ubc88\uc9f8 \uc5b8\uae09\uc758 \uc5ed\uc0ac.<\/h2>\n<p>\ube44\uc74c\uc218 \ud589\ub82c \uc778\uc218\ubd84\ud574\uc758 \uae30\uc6d0\uc740 1990\ub144\ub300 \ucd08\ubc18\uc73c\ub85c \uac70\uc2ac\ub7ec \uc62c\ub77c\uac11\ub2c8\ub2e4. \uc74c\uc774 \uc544\ub2cc \ub370\uc774\ud130 \ud589\ub82c\uc744 \uc778\uc218\ubd84\ud574\ud558\ub294 \uac1c\ub150\uc740 1994\ub144\uc5d0 \ubc1c\ud45c\ub41c \ub17c\ubb38\uc5d0\uc11c &quot;\uc591\uc758 \ud589\ub82c \uc778\uc218\ubd84\ud574&quot; \uac1c\ub150\uc744 \ub3c4\uc785\ud55c Paul Paatero\uc640 Unto Tapper\uc758 \uc791\uc5c5\uacfc \uad00\ub828\uc774 \uc788\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7ec\ub098 &quot;Non-negative Matrix Factorization&quot;\uc774\ub77c\ub294 \uc6a9\uc5b4\ub294 \uadf8\ub9ac\uace0 \uadf8 \ud2b9\uc815 \uc54c\uace0\ub9ac\uc998 \uacf5\uc2dd\uc740 \ub098\uc911\uc5d0 \uc778\uae30\ub97c \uc5bb\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n<p>1999\ub144\uc5d0 \uc5f0\uad6c\uc6d0 Daniel D. Lee\uc640 H. Sebastian \uc2b9\uc740 &quot;\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574\ub97c \ud1b5\ud574 \uac1d\uccb4\uc758 \ubd80\ubd84 \ud559\uc2b5&quot;\uc774\ub77c\ub294 \uc81c\ubaa9\uc758 \uc138\ubbf8\ub098\uc5d0\uc11c NMF\ub97c \uc704\ud55c \ud2b9\uc815 \uc54c\uace0\ub9ac\uc998\uc744 \uc81c\uc548\ud588\uc2b5\ub2c8\ub2e4. \uadf8\ub4e4\uc758 \uc54c\uace0\ub9ac\uc998\uc740 \ube44\uc74c\uc131 \uc81c\uc57d \uc870\uac74\uc5d0 \ucd08\uc810\uc744 \ub9de\ucdb0 \ubd80\ud488 \uae30\ubc18 \ud45c\ud604\uacfc \ucc28\uc6d0 \ucd95\uc18c\ub97c \ud5c8\uc6a9\ud588\uc2b5\ub2c8\ub2e4. \uadf8 \uc774\ud6c4\ub85c NMF\ub294 \ub2e4\uc591\ud55c \uc601\uc5ed\uc5d0\uc11c \uad11\ubc94\uc704\ud558\uac8c \uc5f0\uad6c\ub418\uace0 \uc801\uc6a9\ub418\uc5c8\uc2b5\ub2c8\ub2e4.<\/p>\n<h2>NMF(Non-negative Matrix Factorization)\uc5d0 \ub300\ud55c \uc790\uc138\ud55c \uc815\ubcf4<\/h2>\n<p>\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574(Non-negative Matrix Factorization)\ub294 \uc77c\ubc18\uc801\uc73c\ub85c &quot;V&quot;\ub85c \ud45c\uc2dc\ub418\ub294 \uc74c\uc218\uac00 \uc544\ub2cc \ub370\uc774\ud130 \ud589\ub82c\uc744 \ub450 \uac1c\uc758 \uc74c\uc218\uac00 \uc544\ub2cc \ud589\ub82c &quot;W&quot;\uc640 &quot;H&quot;\ub85c \uadfc\uc0ac\ud654\ud558\ub294 \uc6d0\ub9ac\uc5d0 \ub530\ub77c \uc791\ub3d9\ud569\ub2c8\ub2e4. \ubaa9\ud45c\ub294 \uc81c\ud488\uc774 \uc6d0\ub798 \ud589\ub82c\uc5d0 \uadfc\uc811\ud558\ub3c4\ub85d \uc774\ub7ec\ud55c \ud589\ub82c\uc744 \ucc3e\ub294 \uac83\uc785\ub2c8\ub2e4.<\/p>\n<p>V \u2252 WH<\/p>\n<p>\uc5b4\ub514:<\/p>\n<ul>\n<li>V\ub294 mxn \ud06c\uae30\uc758 \uc6d0\ub798 \ub370\uc774\ud130 \ud589\ub82c\uc785\ub2c8\ub2e4.<\/li>\n<li>W\ub294 mxk \ud06c\uae30\uc758 \uae30\ubcf8 \ud589\ub82c\uc785\ub2c8\ub2e4. \uc5ec\uae30\uc11c k\ub294 \uc6d0\ud558\ub294 \uae30\ubcf8 \ubca1\ud130 \ub610\ub294 \uad6c\uc131 \uc694\uc18c \uc218\uc785\ub2c8\ub2e4.<\/li>\n<li>H\ub294 kxn \ud06c\uae30\uc758 \uacc4\uc218 \ud589\ub82c\uc785\ub2c8\ub2e4.<\/li>\n<\/ul>\n<p>\uc778\uc218\ubd84\ud574\ub294 \uace0\uc720\ud558\uc9c0 \uc54a\uc73c\uba70 W\uc640 H\uc758 \ucc28\uc6d0\uc740 \ud544\uc694\ud55c \uadfc\uc0ac \uc218\uc900\uc5d0 \ub530\ub77c \uc870\uc815\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4. NMF\ub294 \uc77c\ubc18\uc801\uc73c\ub85c \uacbd\uc0ac\ud558\uac15\ubc95, \uad50\ub300 \ucd5c\uc18c \uc81c\uacf1 \ub610\ub294 \uacf1\uc148 \uc5c5\ub370\uc774\ud2b8\uc640 \uac19\uc740 \ucd5c\uc801\ud654 \uae30\uc220\uc744 \uc0ac\uc6a9\ud558\uc5ec V\uc640 WH \uc0ac\uc774\uc758 \uc624\ub958\ub97c \ucd5c\uc18c\ud654\ud558\uc5ec \ub2ec\uc131\ub429\ub2c8\ub2e4.<\/p>\n<h2>NMF(Non-negative Matrix Factorization)\uc758 \ub0b4\ubd80 \uad6c\uc870. NMF(Non-negative Matrix Factorization)\uc758 \uc791\ub3d9 \ubc29\uc2dd.<\/h2>\n<p>\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574\ub294 \ub0b4\ubd80 \uad6c\uc870\uc640 \uae30\ubcf8 \uc791\ub3d9 \uc6d0\ub9ac\ub97c \ubd84\uc11d\ud558\uc5ec \uc774\ud574\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\n<p><strong>\ube44\uc74c\uc131 \uc81c\uc57d \uc870\uac74:<\/strong> NMF\ub294 \uae30\uc800 \ud589\ub82c W\uc640 \uacc4\uc218 \ud589\ub82c H \ubaa8\ub450\uc5d0 \uc74c\uc774 \uc544\ub2cc \uc81c\uc57d \uc870\uac74\uc744 \uc801\uc6a9\ud569\ub2c8\ub2e4. \uc774 \uc81c\uc57d \uc870\uac74\uc740 \uacb0\uacfc \uae30\uc800 \ubca1\ud130\uc640 \uacc4\uc218\ub97c \uc2e4\uc81c \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc5d0\uc11c \ucd94\uac00\ud558\uace0 \ud574\uc11d\ud560 \uc218 \uc788\ub3c4\ub85d \ud5c8\uc6a9\ud558\ubbc0\ub85c \ud544\uc218\uc801\uc785\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ud2b9\uc9d5 \ucd94\ucd9c \ubc0f \ucc28\uc6d0 \ucd95\uc18c:<\/strong> NMF\ub294 \ub370\uc774\ud130\uc5d0\uc11c \uac00\uc7a5 \uad00\ub828\uc131\uc774 \ub192\uc740 \ud2b9\uc9d5\uc744 \uc2dd\ubcc4\ud558\uace0 \uc774\ub97c \uc800\ucc28\uc6d0 \uacf5\uac04\uc5d0 \ud45c\ud604\ud568\uc73c\ub85c\uc368 \ud2b9\uc9d5 \ucd94\ucd9c\uc744 \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4. \uc774\ub7ec\ud55c \ucc28\uc6d0 \uac10\uc18c\ub294 \ub370\uc774\ud130 \ud45c\ud604\uc744 \ub2e8\uc21c\ud654\ud558\uace0 \ub354 \ud574\uc11d\ud558\uae30 \uc26c\uc6b4 \uacb0\uacfc\ub97c \uac00\uc838\uc624\uae30 \ub54c\ubb38\uc5d0 \uace0\ucc28\uc6d0 \ub370\uc774\ud130\ub97c \ucc98\ub9ac\ud560 \ub54c \ud2b9\ud788 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ubd80\ud488 \uae30\ubc18 \ud45c\ud604:<\/strong> NMF\uc758 \uc8fc\uc694 \uc7a5\uc810 \uc911 \ud558\ub098\ub294 \uc6d0\ubcf8 \ub370\uc774\ud130\uc758 \ubd80\ubd84 \uae30\ubc18 \ud45c\ud604\uc744 \uc81c\uacf5\ud558\ub294 \uae30\ub2a5\uc785\ub2c8\ub2e4. \uc774\ub294 W\uc758 \uac01 \uae30\ubcf8 \ubca1\ud130\uac00 \ub370\uc774\ud130\uc758 \ud2b9\uc815 \ud2b9\uc9d5 \ub610\ub294 \ud328\ud134\uc5d0 \ud574\ub2f9\ud558\ub294 \ubc18\uba74, \uacc4\uc218 \ud589\ub82c H\ub294 \uac01 \ub370\uc774\ud130 \uc0d8\ud50c\uc5d0\uc11c \uc774\ub7ec\ud55c \ud2b9\uc9d5\uc758 \uc874\uc7ac \ubc0f \uad00\ub828\uc131\uc744 \ub098\ud0c0\ub0c4\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ub370\uc774\ud130 \uc555\ucd95 \ubc0f \ub178\uc774\uc988 \uc81c\uac70 \uc560\ud50c\ub9ac\ucf00\uc774\uc158:<\/strong> NMF\ub294 \ub370\uc774\ud130 \uc555\ucd95 \ubc0f \ub178\uc774\uc988 \uc81c\uac70 \ubd84\uc57c\uc5d0 \uc801\uc6a9\ub429\ub2c8\ub2e4. \uc801\uc740 \uc218\uc758 \uae30\ubcf8 \ubca1\ud130\ub97c \uc0ac\uc6a9\ud558\uba74 \ucc28\uc6d0\uc744 \uc904\uc774\uba74\uc11c \uc6d0\ubcf8 \ub370\uc774\ud130\ub97c \uadfc\uc0ac\ud654\ud558\ub294 \uac83\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4. \uc774\ub97c \ud1b5\ud574 \ub300\uaddc\ubaa8 \ub370\uc774\ud130 \uc138\ud2b8\ub97c \ud6a8\uc728\uc801\uc73c\ub85c \uc800\uc7a5\ud558\uace0 \ucc98\ub9ac \uc18d\ub3c4\ub97c \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n<h2>NMF(Non-negative Matrix Factorization)\uc758 \uc8fc\uc694 \uae30\ub2a5 \ubd84\uc11d<\/h2>\n<p>\ube44\uc74c\uc218 \ud589\ub82c \uc778\uc218\ubd84\ud574\uc758 \uc8fc\uc694 \uae30\ub2a5\uc740 \ub2e4\uc74c\uacfc \uac19\uc774 \uc694\uc57d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\n<p><strong>\ube44\ubd80\uc815\uc131:<\/strong> NMF\ub294 \uae30\uc800 \ud589\ub82c\uacfc \uacc4\uc218 \ud589\ub82c \ubaa8\ub450\uc5d0 \uc74c\uc218\uac00 \uc544\ub2cc \uc81c\uc57d \uc870\uac74\uc744 \uc801\uc6a9\ud558\ubbc0\ub85c \uc74c\uc218 \uac12\uc774 \uc758\ubbf8 \uc788\ub294 \ud574\uc11d\uc744 \uac16\uc9c0 \uc54a\ub294 \ub370\uc774\ud130\uc138\ud2b8\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ubd80\ud488 \uae30\ubc18 \ud45c\ud604:<\/strong> NMF\ub294 \ub370\uc774\ud130\uc758 \ubd80\ubd84 \uae30\ubc18 \ud45c\ud604\uc744 \uc81c\uacf5\ud558\ubbc0\ub85c \ub370\uc774\ud130\uc5d0\uc11c \uc758\ubbf8 \uc788\ub294 \ud2b9\uc9d5\uacfc \ud328\ud134\uc744 \ucd94\ucd9c\ud558\ub294 \ub370 \uc720\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ucc28\uc6d0\uc131 \uac10\uc18c:<\/strong> NMF\ub294 \ucc28\uc6d0 \ucd95\uc18c\ub97c \ucd09\uc9c4\ud558\uc5ec \uace0\ucc28\uc6d0 \ub370\uc774\ud130\uc758 \ud6a8\uc728\uc801\uc778 \uc800\uc7a5 \ubc0f \ucc98\ub9ac\ub97c \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ud574\uc11d \uac00\ub2a5\uc131:<\/strong> NMF\uc5d0\uc11c \uc5bb\uc740 \uae30\ubcf8 \ubca1\ud130\uc640 \uacc4\uc218\ub294 \ud574\uc11d\uc774 \uac00\ub2a5\ud55c \uacbd\uc6b0\uac00 \ub9ce\uc73c\ubbc0\ub85c \uae30\ubcf8 \ub370\uc774\ud130\uc5d0 \ub300\ud55c \uc758\ubbf8 \uc788\ub294 \ud1b5\ucc30\ub825\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uacac\uace0\uc131:<\/strong> NMF\ub294 \ub204\ub77d\ub418\uac70\ub098 \ubd88\uc644\uc804\ud55c \ub370\uc774\ud130\ub97c \ud6a8\uacfc\uc801\uc73c\ub85c \ucc98\ub9ac\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \ubd88\uc644\uc804\ud55c \uc2e4\uc81c \ub370\uc774\ud130 \uc138\ud2b8\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uc720\uc5f0\uc131:<\/strong> NMF\ub294 \ub2e4\uc591\ud55c \ucd5c\uc801\ud654 \uae30\uc220\uc5d0 \uc801\uc6a9\ud560 \uc218 \uc788\uc73c\ubbc0\ub85c \ud2b9\uc815 \ub370\uc774\ud130 \ud2b9\uc131 \ubc0f \uc694\uad6c \uc0ac\ud56d\uc5d0 \ub530\ub77c \uc0ac\uc6a9\uc790 \uc815\uc758\uac00 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n<h2>\ube44\uc74c\uc218 \ud589\ub82c \uc778\uc218\ubd84\ud574(NMF)\uc758 \uc720\ud615<\/h2>\n<p>\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574(Non-negative Matrix Factorization)\uc5d0\ub294 \uc5ec\ub7ec \uac00\uc9c0 \ubcc0\ud615\uacfc \ud655\uc7a5\uc774 \uc788\uc73c\uba70 \uac01\uac01 \uace0\uc720\ud55c \uc7a5\uc810\uacfc \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc774 \uc788\uc2b5\ub2c8\ub2e4. NMF\uc758 \uc77c\ubc18\uc801\uc778 \uc720\ud615\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\n<p><strong>\ud074\ub798\uc2dd NMF:<\/strong> \ucd5c\uc801\ud654\ub97c \uc704\ud574 \uacf1\uc148 \uc5c5\ub370\uc774\ud2b8 \ub610\ub294 \uad50\ub300 \ucd5c\uc18c \uc81c\uacf1\uacfc \uac19\uc740 \ubc29\ubc95\uc744 \uc0ac\uc6a9\ud558\uc5ec Lee\uc640 \uc2b9\uc774 \uc81c\uc548\ud55c NMF\uc758 \uc6d0\ub798 \uacf5\uc2dd\ud654\uc785\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ud76c\ubc15\ud55c NMF:<\/strong> \uc774 \ubcc0\ud615\uc740 \ud76c\uc18c\uc131 \uc81c\uc57d \uc870\uac74\uc744 \ub3c4\uc785\ud558\uc5ec \ub370\uc774\ud130\ub97c \ubcf4\ub2e4 \ud574\uc11d\ud558\uae30 \uc27d\uace0 \ud6a8\uc728\uc801\uc73c\ub85c \ud45c\ud604\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uac15\ub825\ud55c NMF:<\/strong> \uac15\ub825\ud55c NMF \uc54c\uace0\ub9ac\uc998\uc740 \ub370\uc774\ud130\uc758 \uc774\uc0c1\uac12\uacfc \ub178\uc774\uc988\ub97c \ucc98\ub9ac\ud558\ub3c4\ub85d \uc124\uacc4\ub418\uc5b4 \ubcf4\ub2e4 \uc548\uc815\uc801\uc778 \ubd84\ud574\ub97c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uacc4\uce35\uc801 NMF:<\/strong> \uacc4\uce35\uc801 NMF\uc5d0\uc11c\ub294 \uc5ec\ub7ec \uc218\uc900\uc758 \uc778\uc218\ubd84\ud574\uac00 \uc218\ud589\ub418\uc5b4 \ub370\uc774\ud130\uc758 \uacc4\uce35\uc801 \ud45c\ud604\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ucee4\ub110 NMF:<\/strong> \ucee4\ub110 NMF\ub294 NMF\uc758 \uac1c\ub150\uc744 \ucee4\ub110 \uc720\ub3c4 \ud2b9\uc9d5 \uacf5\uac04\uc73c\ub85c \ud655\uc7a5\ud558\uc5ec \ube44\uc120\ud615 \ub370\uc774\ud130\uc758 \uc778\uc218\ubd84\ud574\ub97c \uac00\ub2a5\ud558\uac8c \ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uac10\ub3c5\ub418\ub294 NMF:<\/strong> \uc774 \ubcc0\ud615\uc740 \ud074\ub798\uc2a4 \ub808\uc774\ube14 \ub610\ub294 \ub300\uc0c1 \uc815\ubcf4\ub97c \uc778\uc218\ubd84\ud574 \ud504\ub85c\uc138\uc2a4\uc5d0 \ud1b5\ud569\ud558\uc5ec \ubd84\ub958 \uc791\uc5c5\uc5d0 \uc801\ud569\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n<p>\ub2e4\uc74c\uc740 \ub2e4\uc591\ud55c \uc720\ud615\uc758 \ube44\uc74c\uc218 \ud589\ub82c \uc778\uc218\ubd84\ud574\uc640 \uadf8 \ud2b9\uc131\uc744 \uc694\uc57d\ud55c \ud45c\uc785\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>NMF\uc758 \uc885\ub958<\/th>\n<th>\ud615\uc9c8<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\ud074\ub798\uc2dd NMF<\/td>\n<td>\ube44\uc74c\uc131 \uc81c\uc57d \uc870\uac74\uc774 \uc788\ub294 \uc6d0\ub798 \uacf5\uc2dd<\/td>\n<\/tr>\n<tr>\n<td>\ud76c\uc18c NMF<\/td>\n<td>\ub354 \ud574\uc11d\ud558\uae30 \uc26c\uc6b4 \uacb0\uacfc\ub97c \uc704\ud574 \ud76c\uc18c\uc131\uc744 \ub3c4\uc785\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>\uac15\ub825\ud55c NMF<\/td>\n<td>\uc774\uc0c1\uac12\uacfc \ub178\uc774\uc988\ub97c \ud6a8\uacfc\uc801\uc73c\ub85c \ucc98\ub9ac\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>\uacc4\uce35\uc801 NMF<\/td>\n<td>\ub370\uc774\ud130\uc758 \uacc4\uce35\uc801 \ud45c\ud604\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>\ucee4\ub110 NMF<\/td>\n<td>NMF\ub97c \ucee4\ub110 \uc720\ub3c4 \uae30\ub2a5 \uacf5\uac04\uc73c\ub85c \ud655\uc7a5\ud569\ub2c8\ub2e4.<\/td>\n<\/tr>\n<tr>\n<td>\uac10\ub3c5\ub418\ub294 NMF<\/td>\n<td>\ubd84\ub958 \uc791\uc5c5\uc744 \uc704\ud55c \ud074\ub798\uc2a4 \ub77c\ubca8 \ud1b5\ud569<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>NMF(Non-negative Matrix Factorization)\uc758 \uc0ac\uc6a9\ubc29\ubc95\uacfc \uc0ac\uc6a9\uc5d0 \ub530\ub978 \ubb38\uc81c\uc810 \ubc0f \ud574\uacb0\ubc29\uc548\uc785\ub2c8\ub2e4.<\/h2>\n<p>\ube44\uc74c\uc218 \ud589\ub82c \uc778\uc218\ubd84\ud574\ub294 \ub2e4\uc591\ud55c \uc601\uc5ed\uc5d0 \uac78\uccd0 \ud3ed\ub113\uac8c \uc751\uc6a9\ub429\ub2c8\ub2e4. NMF\uc640 \uad00\ub828\ub41c \uba87 \uac00\uc9c0 \uc77c\ubc18\uc801\uc778 \uc0ac\uc6a9 \uc0ac\ub840\uc640 \uacfc\uc81c\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<h3>NMF \uc0ac\uc6a9 \uc0ac\ub840:<\/h3>\n<ol>\n<li>\n<p><strong>\uc774\ubbf8\uc9c0 \ucc98\ub9ac:<\/strong> NMF\ub294 \uc774\ubbf8\uc9c0 \ucc98\ub9ac \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc5d0\uc11c \uc774\ubbf8\uc9c0 \uc555\ucd95, \ub178\uc774\uc988 \uc81c\uac70 \ubc0f \ud2b9\uc9d5 \ucd94\ucd9c\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ud14d\uc2a4\ud2b8 \ub9c8\uc774\ub2dd:<\/strong> NMF\ub294 \uc8fc\uc81c \ubaa8\ub378\ub9c1, \ubb38\uc11c \ud074\ub7ec\uc2a4\ud130\ub9c1 \ubc0f \ud14d\uc2a4\ud2b8 \ub370\uc774\ud130\uc758 \uac10\uc815 \ubd84\uc11d\uc744 \uc9c0\uc6d0\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uc0dd\ubb3c\uc815\ubcf4\ud559:<\/strong> NMF\ub294 \uc720\uc804\uc790 \ubc1c\ud604 \ubd84\uc11d, \uc0dd\ubb3c\ud559\uc801 \ub370\uc774\ud130\uc758 \ud328\ud134 \uc2dd\ubcc4 \ubc0f \uc57d\ubb3c \ubc1c\uacac\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uc624\ub514\uc624 \uc2e0\ud638 \ucc98\ub9ac:<\/strong> NMF\ub294 \uc18c\uc2a4 \ubd84\ub9ac \ubc0f \uc74c\uc545 \ubd84\uc11d\uc5d0 \uc0ac\uc6a9\ub429\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ucd94\ucc9c \uc2dc\uc2a4\ud15c:<\/strong> NMF\ub294 \uc0ac\uc6a9\uc790-\uc544\uc774\ud15c \uc0c1\ud638 \uc791\uc6a9\uc758 \uc7a0\uc7ac \uc694\uc778\uc744 \uc2dd\ubcc4\ud558\uc5ec \uac1c\uc778\ud654\ub41c \ucd94\ucc9c \uc2dc\uc2a4\ud15c\uc744 \uad6c\ucd95\ud558\ub294 \ub370 \ud65c\uc6a9\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n<h3>\uacfc\uc81c\uc640 \uc194\ub8e8\uc158:<\/h3>\n<ol>\n<li>\n<p><strong>\ucd08\uae30\ud654:<\/strong> NMF\ub294 W \ubc0f H\uc758 \ucd08\uae30 \uac12 \uc120\ud0dd\uc5d0 \ubbfc\uac10\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ubb34\uc791\uc704 \ucd08\uae30\ud654 \ub610\ub294 \ub2e4\ub978 \ucc28\uc6d0 \ucd95\uc18c \uae30\uc220 \uc0ac\uc6a9\uacfc \uac19\uc740 \ub2e4\uc591\ud55c \ucd08\uae30\ud654 \uc804\ub7b5\uc744 \uc0ac\uc6a9\ud558\uba74 \uc774 \ubb38\uc81c\ub97c \ud574\uacb0\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ubd84\uae30:<\/strong> NMF\uc5d0 \uc0ac\uc6a9\ub418\ub294 \uc77c\ubd80 \ucd5c\uc801\ud654 \ubc29\ubc95\uc740 \ubc1c\uc0b0 \ubb38\uc81c\ub85c \uc778\ud574 \uc218\ub834 \uc18d\ub3c4\uac00 \ub290\ub824\uc9c0\uac70\ub098 \ub85c\uceec \ucd5c\uc801 \uc0c1\ud0dc\uc5d0 \ube60\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uc801\uc808\ud55c \uc5c5\ub370\uc774\ud2b8 \uaddc\uce59\uacfc \uc815\uaddc\ud654 \uae30\uc220\uc744 \uc0ac\uc6a9\ud558\uba74 \uc774 \ubb38\uc81c\ub97c \uc644\ud654\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uacfc\uc801\ud569:<\/strong> \ud2b9\uc9d5 \ucd94\ucd9c\uc744 \uc704\ud574 NMF\ub97c \uc0ac\uc6a9\ud560 \uacbd\uc6b0 \ub370\uc774\ud130\uac00 \uacfc\uc801\ud569\ub420 \uc704\ud5d8\uc774 \uc788\uc2b5\ub2c8\ub2e4. \uc815\uaddc\ud654 \ubc0f \uad50\ucc28 \uac80\uc99d\uacfc \uac19\uc740 \uae30\uc220\uc740 \uacfc\uc801\ud569\uc744 \ubc29\uc9c0\ud558\ub294 \ub370 \ub3c4\uc6c0\uc774 \ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ub370\uc774\ud130 \ud655\uc7a5:<\/strong> NMF\ub294 \uc785\ub825 \ub370\uc774\ud130\uc758 \uaddc\ubaa8\uc5d0 \ubbfc\uac10\ud569\ub2c8\ub2e4. NMF\ub97c \uc801\uc6a9\ud558\uae30 \uc804\uc5d0 \ub370\uc774\ud130\ub97c \uc801\uc808\ud558\uac8c \ud655\uc7a5\ud558\uba74 \uc131\ub2a5\uc774 \ud5a5\uc0c1\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ub204\ub77d\ub41c \ub370\uc774\ud130:<\/strong> NMF \uc54c\uace0\ub9ac\uc998\uc740 \ub204\ub77d\ub41c \ub370\uc774\ud130\ub97c \ucc98\ub9ac\ud558\uc9c0\ub9cc \ub204\ub77d\ub41c \uac12\uc774 \ub108\ubb34 \ub9ce\uc73c\uba74 \uc778\uc218\ubd84\ud574\uac00 \ubd80\uc815\ud655\ud574\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub300\uce58 \uae30\uc220\uc744 \uc0ac\uc6a9\ud558\uc5ec \ub204\ub77d\ub41c \ub370\uc774\ud130\ub97c \ud6a8\uacfc\uc801\uc73c\ub85c \ucc98\ub9ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n<h2>\uc8fc\uc694 \ud2b9\uc9d5 \ubc0f \uae30\ud0c0 \uc720\uc0ac\ud55c \uc6a9\uc5b4\uc640\uc758 \ube44\uad50\ub97c \ud45c\uc640 \ubaa9\ub85d \ud615\ud0dc\ub85c \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/h2>\n<p>\ub2e4\uc74c\uc740 \ub2e4\ub978 \uc720\uc0ac\ud55c \uae30\uc220\uc744 \uc0ac\uc6a9\ud55c \ube44\uc74c\uc218 \ud589\ub82c \uc778\uc218\ubd84\ud574\uc758 \ube44\uad50\ud45c\uc785\ub2c8\ub2e4.<\/p>\n<table>\n<thead>\n<tr>\n<th>\uae30\uc220<\/th>\n<th>\ube44\uc74c\uc131 \uc81c\uc57d\uc870\uac74<\/th>\n<th>\ud574\uc11d \uac00\ub2a5\uc131<\/th>\n<th>\ud76c\uc18c\uc131<\/th>\n<th>\ub204\ub77d\ub41c \ub370\uc774\ud130 \ucc98\ub9ac<\/th>\n<th>\uc120\ud615\uc131 \uac00\uc815<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574(NMF)<\/td>\n<td>\uc608<\/td>\n<td>\ub192\uc740<\/td>\n<td>\uc120\ud0dd \uacfc\ubaa9<\/td>\n<td>\uc608<\/td>\n<td>\uc120\uc758<\/td>\n<\/tr>\n<tr>\n<td>\uc8fc\uc131\ubd84 \ubd84\uc11d(PCA)<\/td>\n<td>\uc544\ub2c8\uc694<\/td>\n<td>\ub0ae\uc740<\/td>\n<td>\uc544\ub2c8\uc694<\/td>\n<td>\uc544\ub2c8\uc694<\/td>\n<td>\uc120\uc758<\/td>\n<\/tr>\n<tr>\n<td>\ub3c5\ub9bd \uad6c\uc131\uc694\uc18c \ubd84\uc11d(ICA)<\/td>\n<td>\uc544\ub2c8\uc694<\/td>\n<td>\ub0ae\uc740<\/td>\n<td>\uc120\ud0dd \uacfc\ubaa9<\/td>\n<td>\uc544\ub2c8\uc694<\/td>\n<td>\uc120\uc758<\/td>\n<\/tr>\n<tr>\n<td>LDA(\uc7a0\uc7ac \ub514\ub9ac\ud074\ub808 \ud560\ub2f9)<\/td>\n<td>\uc544\ub2c8\uc694<\/td>\n<td>\ub192\uc740<\/td>\n<td>\ubd80\uc871\ud55c<\/td>\n<td>\uc544\ub2c8\uc694<\/td>\n<td>\uc120\uc758<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<ul>\n<li>\n<p><strong>\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574(NMF):<\/strong> NMF\ub294 \uae30\uc800 \ubc0f \uacc4\uc218 \ud589\ub82c\uc5d0 \ub300\ud574 \ube44\uc74c\uc131 \uc81c\uc57d \uc870\uac74\uc744 \uc801\uc6a9\ud558\uc5ec \ubd80\ubd84 \uae30\ubc18\uc758 \ud574\uc11d \uac00\ub2a5\ud55c \ub370\uc774\ud130 \ud45c\ud604\uc744 \uc81c\uacf5\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uc8fc\uc131\ubd84 \ubd84\uc11d(PCA):<\/strong> PCA\ub294 \ubd84\uc0b0\uc744 \ucd5c\ub300\ud654\ud558\uace0 \uc9c1\uad50 \uc131\ubd84\uc744 \uc81c\uacf5\ud558\ub294 \uc120\ud615 \uae30\ubc95\uc774\uc9c0\ub9cc \ud574\uc11d \uac00\ub2a5\uc131\uc744 \ubcf4\uc7a5\ud558\uc9c0\ub294 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ub3c5\ub9bd \uad6c\uc131\uc694\uc18c \ubd84\uc11d(ICA):<\/strong> ICA\ub294 PCA\ubcf4\ub2e4 \ub354 \ud574\uc11d\ud558\uae30 \uc26c\uc6b0\ub098 \ud76c\uc18c\uc131\uc744 \ubcf4\uc7a5\ud558\uc9c0 \uc54a\ub294 \ud1b5\uacc4\uc801\uc73c\ub85c \ub3c5\ub9bd\uc801\uc778 \uad6c\uc131\uc694\uc18c\ub97c \ucc3e\ub294 \uac83\uc744 \ubaa9\ud45c\ub85c \ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>LDA(\uc7a0\uc7ac \ub514\ub9ac\ud074\ub808 \ud560\ub2f9):<\/strong> LDA\ub294 \ud14d\uc2a4\ud2b8 \ub370\uc774\ud130\uc758 \uc8fc\uc81c \ubaa8\ub378\ub9c1\uc5d0 \uc0ac\uc6a9\ub418\ub294 \ud655\ub960 \ubaa8\ub378\uc785\ub2c8\ub2e4. \ud76c\uc18c \ud45c\ud604\uc744 \uc81c\uacf5\ud558\uc9c0\ub9cc \uc74c\uc774 \uc544\ub2cc \uc81c\uc57d \uc870\uac74\uc774 \ubd80\uc871\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ul>\n<h2>NMF(Non-Negative Matrix Factorization)\uc5d0 \uad00\ud55c \ubbf8\ub798\uc758 \uad00\uc810\uacfc \uae30\uc220.<\/h2>\n<p>\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574(Matrix Factorization)\ub294 \uacc4\uc18d\ud574\uc11c \ud65c\ubc1c\ud55c \uc5f0\uad6c \uac1c\ubc1c \ubd84\uc57c\uc785\ub2c8\ub2e4. NMF\uc640 \uad00\ub828\ub41c \uba87 \uac00\uc9c0 \uad00\uc810\uacfc \ubbf8\ub798 \uae30\uc220\uc740 \ub2e4\uc74c\uacfc \uac19\ub2e4.<\/p>\n<ol>\n<li>\n<p><strong>\ub525 \ub7ec\ub2dd \ud1b5\ud569:<\/strong> NMF\ub97c \ub525 \ub7ec\ub2dd \uc544\ud0a4\ud14d\ucc98\uc640 \ud1b5\ud569\ud558\uba74 \ub525 \ubaa8\ub378\uc758 \ud2b9\uc9d5 \ucd94\ucd9c \ubc0f \ud574\uc11d \uac00\ub2a5\uc131\uc774 \ud5a5\uc0c1\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uac15\ub825\ud558\uace0 \ud655\uc7a5 \uac00\ub2a5\ud55c \uc54c\uace0\ub9ac\uc998:<\/strong> \uc9c0\uc18d\uc801\uc778 \uc5f0\uad6c\ub294 \ub300\uaddc\ubaa8 \ub370\uc774\ud130 \uc138\ud2b8\ub97c \ud6a8\uc728\uc801\uc73c\ub85c \ucc98\ub9ac\ud558\uae30 \uc704\ud574 \uac15\ub825\ud558\uace0 \ud655\uc7a5 \uac00\ub2a5\ud55c NMF \uc54c\uace0\ub9ac\uc998\uc744 \uac1c\ubc1c\ud558\ub294 \ub370 \uc911\uc810\uc744 \ub450\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ub3c4\uba54\uc778\ubcc4 \uc560\ud50c\ub9ac\ucf00\uc774\uc158:<\/strong> \uc758\ub8cc \uc601\uc0c1, \uae30\ud6c4 \ubaa8\ub378\ub9c1 \ubc0f \uc18c\uc15c \ub124\ud2b8\uc6cc\ud06c\uc640 \uac19\uc740 \ud2b9\uc815 \uc601\uc5ed\uc5d0 \ub9de\uac8c NMF \uc54c\uace0\ub9ac\uc998\uc744 \uc870\uc815\ud558\uba74 \uc0c8\ub85c\uc6b4 \ud1b5\ucc30\ub825\uacfc \uc751\uc6a9 \ud504\ub85c\uadf8\ub7a8\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ud558\ub4dc\uc6e8\uc5b4 \uac00\uc18d:<\/strong> \ud2b9\uc218 \ud558\ub4dc\uc6e8\uc5b4(\uc608: GPU \ubc0f TPU)\uc758 \ubc1c\uc804\uc73c\ub85c NMF \uacc4\uc0b0\uc774 \ud06c\uac8c \uac00\uc18d\ud654\ub418\uc5b4 \uc2e4\uc2dc\uac04 \uc560\ud50c\ub9ac\ucf00\uc774\uc158\uc774 \uac00\ub2a5\ud574\uc84c\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uc628\ub77c\uc778 \ubc0f \uc810\uc9c4\uc801 \ud559\uc2b5:<\/strong> \uc628\ub77c\uc778 \ubc0f \uc99d\ubd84 NMF \uc54c\uace0\ub9ac\uc998\uc5d0 \ub300\ud55c \uc5f0\uad6c\ub97c \ud1b5\ud574 \ub3d9\uc801 \ub370\uc774\ud130 \uc2a4\ud2b8\ub9bc\uc5d0 \ub300\ud55c \uc9c0\uc18d\uc801\uc778 \ud559\uc2b5\uacfc \uc801\uc751\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n<h2>\ud504\ub85d\uc2dc \uc11c\ubc84\ub97c \uc0ac\uc6a9\ud558\uac70\ub098 NMF(Non-Negative Matrix Factorization)\uc640 \uc5f0\uacb0\ud558\ub294 \ubc29\ubc95.<\/h2>\n<p>\ud504\ub85d\uc2dc \uc11c\ubc84\ub294 \ud074\ub77c\uc774\uc5b8\ud2b8\uc640 \uc11c\ubc84 \uc0ac\uc774\uc758 \uc911\uac1c\uc790 \uc5ed\ud560\uc744 \ud558\uba70 \uc778\ud130\ub137 \ud1b5\uc2e0\uc5d0\uc11c \uc911\uc694\ud55c \uc5ed\ud560\uc744 \ud569\ub2c8\ub2e4. NMF\ub294 \ud504\ub85d\uc2dc \uc11c\ubc84\uc640 \uc9c1\uc811 \uc5f0\uacb0\ub418\uc9c0\ub294 \uc54a\uc9c0\ub9cc \ub2e4\uc74c \uc0ac\uc6a9 \uc0ac\ub840\uc5d0\uc11c \uac04\uc811\uc801\uc778 \uc774\uc810\uc744 \uc5bb\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<ol>\n<li>\n<p><strong>\uc6f9 \uce90\uc2f1:<\/strong> \ud504\ub85d\uc2dc \uc11c\ubc84\ub294 \uc6f9 \uce90\uc2f1\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc790\uc8fc \uc561\uc138\uc2a4\ud558\ub294 \ucf58\ud150\uce20\ub97c \ub85c\uceec\uc5d0 \uc800\uc7a5\ud569\ub2c8\ub2e4. NMF\ub97c \uc0ac\uc6a9\ud558\uba74 \uce90\uc2f1\uacfc \uac00\uc7a5 \uad00\ub828\uc131\uc774 \ub192\uace0 \uc720\uc775\ud55c \ucf58\ud150\uce20\ub97c \uc2dd\ubcc4\ud558\uc5ec \uce90\uc2f1 \uba54\ucee4\ub2c8\uc998\uc758 \ud6a8\uc728\uc131\uc744 \ub192\uc77c \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uc0ac\uc6a9\uc790 \ud589\ub3d9 \ubd84\uc11d:<\/strong> \ud504\ub85d\uc2dc \uc11c\ubc84\ub294 \uc6f9 \uc694\uccad \ubc0f \ud0d0\uc0c9 \ud328\ud134\uacfc \uac19\uc740 \uc0ac\uc6a9\uc790 \ud589\ub3d9 \ub370\uc774\ud130\ub97c \ucea1\ucc98\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub7f0 \ub2e4\uc74c NMF\ub97c \uc0ac\uc6a9\ud558\uc5ec \uc774 \ub370\uc774\ud130\uc5d0\uc11c \uc7a0\uc7ac \uae30\ub2a5\uc744 \ucd94\ucd9c\ud558\uc5ec \uc0ac\uc6a9\uc790 \ud504\ub85c\ud30c\uc77c\ub9c1 \ubc0f \ud0c0\uac9f \ucf58\ud150\uce20 \uc804\ub2ec\uc744 \uc9c0\uc6d0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\uc774\uc0c1 \ud0d0\uc9c0:<\/strong> NMF\ub97c \uc801\uc6a9\ud558\uba74 \ud504\ub85d\uc2dc \uc11c\ubc84\ub97c \ud1b5\uacfc\ud558\ub294 \ud2b8\ub798\ud53d \ud328\ud134\uc744 \ubd84\uc11d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ube44\uc815\uc0c1\uc801\uc778 \ud328\ud134\uc744 \uc2dd\ubcc4\ud568\uc73c\ub85c\uc368 \ud504\ub85d\uc2dc \uc11c\ubc84\ub294 \uc7a0\uc7ac\uc801\uc778 \ubcf4\uc548 \uc704\ud611\uacfc \ub124\ud2b8\uc6cc\ud06c \ud65c\ub3d9\uc758 \uc774\uc0c1 \ud604\uc0c1\uc744 \uac10\uc9c0\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/li>\n<li>\n<p><strong>\ucf58\ud150\uce20 \ud544\ud130\ub9c1 \ubc0f \ubd84\ub958:<\/strong> NMF\ub294 \ucf58\ud150\uce20 \ud544\ud130\ub9c1 \ubc0f \ubd84\ub958\uc5d0\uc11c \ud504\ub85d\uc2dc \uc11c\ubc84\ub97c \uc9c0\uc6d0\ud558\uc5ec \ud574\ub2f9 \uae30\ub2a5\uacfc \ud328\ud134\uc744 \uae30\ubc18\uc73c\ub85c \ud2b9\uc815 \uc720\ud615\uc758 \ucf58\ud150\uce20\ub97c \ucc28\ub2e8\ud558\uac70\ub098 \ud5c8\uc6a9\ud558\ub294 \ub370 \ub3c4\uc6c0\uc744 \uc90d\ub2c8\ub2e4.<\/p>\n<\/li>\n<\/ol>\n<h2>\uad00\ub828\ub41c \ub9c1\ud06c\ub4e4<\/h2>\n<p>NMF(Non-negative Matrix Factorization)\uc5d0 \ub300\ud55c \uc790\uc138\ud55c \ub0b4\uc6a9\uc740 \ub2e4\uc74c \ub9ac\uc18c\uc2a4\ub97c \ucc38\uc870\ud558\uc2ed\uc2dc\uc624.<\/p>\n<ol>\n<li>\n<p><a href=\"https:\/\/www.nature.com\/articles\/44565\" target=\"_new\" rel=\"noopener nofollow\">\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574\ub97c \ud1b5\ud574 \uac1d\uccb4\uc758 \ubd80\ubd84 \ud559\uc2b5 \u2013 Daniel D. Lee \ubc0f H. Sebastian Sung<\/a><\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Non-negative_matrix_factorization\" target=\"_new\" rel=\"noopener nofollow\">\uc74c\uc774 \uc544\ub2cc \ud589\ub82c \uc778\uc218\ubd84\ud574 \u2013 Wikipedia<\/a><\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.datacamp.com\/community\/tutorials\/tutorial-nmf-python\" target=\"_new\" rel=\"noopener nofollow\">\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574 \uc18c\uac1c: \uc885\ud569 \uac00\uc774\ub4dc \u2013 Datacamp<\/a><\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/towardsdatascience.com\/nmf-unsupervised-feature-extraction-e1582b4e5afe\" target=\"_new\" rel=\"noopener nofollow\">\ube44\uc74c\uc218 \ud589\ub82c \ubd84\ud574: \uc218\ud559 \uc774\ud574 \ubc0f \uc791\ub3d9 \ubc29\uc2dd \u2013 Medium<\/a><\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/arxiv.org\/abs\/2002.01460\" target=\"_new\" rel=\"noopener nofollow\">\uc774\ubbf8\uc9c0 \uc778\ucf54\ub529\uc744 \uc704\ud55c \ube44\uc74c\uc218 \ud589\ub82c \uc778\uc218\ubd84\ud574\ub97c \uc0ac\uc6a9\ud55c \ub525\ub7ec\ub2dd \u2013 arXiv<\/a><\/p>\n<\/li>\n<\/ol>","protected":false},"featured_media":469015,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-478216","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Non-negative Matrix Factorization (NMF)<\/mark>","faq_items":[{"question":"What is Non-negative Matrix Factorization (NMF)?","answer":"<p>Non-negative Matrix Factorization (NMF) is a powerful mathematical technique used for data analysis, feature extraction, and dimensionality reduction. It decomposes a non-negative data matrix into two or more non-negative matrices, providing interpretable results with additive components.<\/p>"},{"question":"How does Non-negative Matrix Factorization (NMF) work?","answer":"<p>NMF approximates a non-negative data matrix (V) by finding two non-negative matrices (W and H) such that V \u2248 WH. The basis matrix (W) represents meaningful features, and the coefficient matrix (H) indicates their relevance in each data sample.<\/p>"},{"question":"What are the key features of Non-negative Matrix Factorization (NMF)?","answer":"<p>The key features of NMF include the non-negativity constraint, parts-based representation, dimensionality reduction, interpretability, robustness to missing data, and flexibility in optimization techniques.<\/p>"},{"question":"What types of Non-negative Matrix Factorization (NMF) exist?","answer":"<p>There are various types of NMF, such as classic NMF, sparse NMF, robust NMF, hierarchical NMF, kernel NMF, and supervised NMF, each tailored for specific applications and constraints.<\/p>"},{"question":"How can Non-negative Matrix Factorization (NMF) be used?","answer":"<p>NMF finds applications in image processing, text mining, bioinformatics, audio signal processing, recommendation systems, and more. It aids in tasks like image compression, topic modeling, gene expression analysis, and source separation.<\/p>"},{"question":"What are the challenges and solutions related to Non-negative Matrix Factorization (NMF)?","answer":"<p>Challenges in NMF include initialization sensitivity, divergence issues, overfitting, data scaling, and handling missing data. These can be addressed by using appropriate initialization strategies, update rules, regularization, and imputation techniques.<\/p>"},{"question":"How does Non-negative Matrix Factorization (NMF) compare to other techniques?","answer":"<p>NMF stands out with its non-negativity constraint, interpretability, and sparsity control. In comparison, techniques like PCA, ICA, and LDA may offer orthogonal components, independence, or topic modeling but lack certain features of NMF.<\/p>"},{"question":"What are the future perspectives of Non-negative Matrix Factorization (NMF)?","answer":"<p>The future of NMF includes integrations with deep learning, development of robust and scalable algorithms, domain-specific applications, hardware acceleration, and advancements in online and incremental learning techniques.<\/p>"},{"question":"How can proxy servers be associated with Non-negative Matrix Factorization (NMF)?","answer":"<p>While not directly linked, proxy servers can benefit from NMF in web caching, user behavior analysis, anomaly detection, content filtering, and classification, leading to more efficient and secure internet communication.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki\/478216","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/wiki\/478216\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/media\/469015"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/kr\/wp-json\/wp\/v2\/media?parent=478216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}