{"id":5404,"date":"2022-03-10T17:39:36","date_gmt":"2022-03-10T08:39:36","guid":{"rendered":"https:\/\/blogs.mathworks.com\/japan-community\/?p=5404"},"modified":"2022-03-10T17:46:03","modified_gmt":"2022-03-10T08:46:03","slug":"deep-metric-learning-matlab","status":"publish","type":"post","link":"https:\/\/blogs.mathworks.com\/japan-community\/2022\/03\/10\/deep-metric-learning-matlab\/","title":{"rendered":"\u6df1\u5c64\u8ddd\u96e2\u5b66\u7fd2 Deep Metric Learning \u3067\u30c1\u30ef\u30ef ? \u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\uff1f"},"content":{"rendered":"<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u4eca\u56de\u306f\u6700\u8fd1\u5165\u793e\u3055\u308c\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30a8\u30f3\u30b8\u30cb\u30a2\u798f\u5730\u3055\u3093\u306e\u6295\u7a3f\u3067\u3059\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u611b\u72ac\u3092\u7d39\u4ecb\u3059\u308b\u305f\u3081\u306b\u6df1\u5c64\u8ddd\u96e2\u5b66\u7fd2\u306e ArcFace \u3092\u5b9f\u88c5\u3059\u308b\u3068\u3044\u3046\u524d\u4ee3\u672a\u805e\u306e\u81ea\u5df1\u7d39\u4ecb\u30d7\u30ec\u30bc\u30f3\u3092\u7e70\u308a\u51fa\u3057\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002\u3053\u308c\u3092\u793e\u5185\u306b\u3068\u3069\u3081\u3066\u304a\u304f\u306e\u306f\u3082\u3063\u305f\u3044\u306a\u3055\u3059\u304e\u308b\u30fb\u30fb\u3068\u3044\u3046\u3053\u3068\u3067<del>\u7121\u7406\u8a00\u3063\u3066<\/del>\u3053\u3061\u3089\u306b\u767b\u5834\u9802\u304d\u307e\u3057\u305f\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u30b3\u30fc\u30c9\u3082 <a href=\"https:\/\/github.com\/fukuchi0105\/Implementation-ArcFace-in-MATLAB\" target=\"_blank\" rel=\"noopener nofollow\" class=\"external\">Github: Implementation-ArcFace-in-MATLAB<\/a> \u306b\u516c\u958b\u3055\u308c\u3066\u307e\u3059\u306e\u3067\u3001\u305c\u3072\u8a66\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\uff01<\/div>\n<div><\/div>\n<div class=\"rtcContent\">\n<div>\n<hr \/>\n<\/div>\n<div><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u3053\u3093\u306b\u3061\u306f\u3002\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u90e8 \u81ea\u7acb\u30b7\u30b9\u30c6\u30e0\u30fb\u30ed\u30dc\u30c6\u30a3\u30af\u30b9\u62c5\u5f53\u306e\u798f\u5730\u3067\u3059\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u6628\u5e74 12 \u6708\u306b\u5165\u793e\u3057\u3001\u793e\u5185\u306e\u307f\u306a\u3055\u3093\u306b\u81ea\u5df1\u7d39\u4ecb\u3092\u3059\u308b\u6a5f\u4f1a\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u3042\u308a\u304c\u305f\u3044\u3053\u3068\u306b\u3001\u305d\u306e\u5185\u5bb9\u306b\u3064\u3044\u3066\u30d6\u30ed\u30b0\u306b\u3057\u3066\u307f\u306a\u3044\u304b\u3068\u304a\u58f0\u304c\u3051\u3044\u305f\u3060\u3044\u305f\u306e\u3067\u305d\u306e\u88cf\u5074\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3059\uff01<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u81ea\u5df1\u7d39\u4ecb\u3067\u306f <a href=\"https:\/\/arxiv.org\/abs\/1801.07698\" class=\"external\" rel=\"nofollow\" target=\"_blank\"><span style=\"font-weight: bold;\">ArcFace<\/span><\/a> \u3068\u547c\u3070\u308c\u308b\u3001<span style=\"font-weight: bold;\">\u6df1\u5c64\u8ddd\u96e2\u5b66\u7fd2<\/span>\u306e\u624b\u6cd5\u3092\u4f7f\u3063\u305f\u304a\u904a\u3073\u3092\u3084\u3063\u3066\u307e\u3057\u305f\u3002\u306a\u305c\u305d\u3093\u306a\u3053\u3068\u3092\u3084\u3063\u305f\u306e\u304b\u3068\u3044\u3046\u3068<\/div>\n<h2 style=\"margin: 20px 10px 5px 4px; padding: 0px; line-height: 20px; min-height: 0px; white-space: pre-wrap; color: #3c3c3c; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 20px; font-weight: bold; text-align: left;\"><span style=\"font-weight: bold;\">\u4f55\u304b\u306b\u3053\u3058\u3064\u3051\u3066\u98fc\u3063\u3066\u3044\u308b\u308f\u3093\u3053\u306e\u304b\u308f\u3044\u3055\u3092\u7d39\u4ecb\u3057\u305f\u304b\u3063\u305f\u304b\u3089<\/span><\/h2>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u3067\u3059\uff01\uff01\uff01<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u601d\u8003\u30d5\u30ed\u30fc\u306f\u3053\u3093\u306a\u611f\u3058\u3067\u3059\u3002<\/div>\n<ol style=\"margin: 10px 0px 20px; padding-left: 0px; font-family: Helvetica, Arial, sans-serif; font-size: 14px;\">\n<li style=\"margin-left: 56px; line-height: 21px; min-height: 0px; text-align: left; white-space: pre-wrap;\">\u81ea\u5df1\u7d39\u4ecb\u4f55\u3092\u8a71\u305d\u3046\u304b\u306a\uff5e\u3001\u3084\u3063\u3071\u308a\u899a\u3048\u3066\u3082\u3089\u3046\u306b\u306f\u81ea\u5206\u306e\u597d\u304d\u306a\u3082\u306e\u3092\u71b1\u304f\u8a9e\u3063\u305f\u307b\u3046\u304c\u826f\u3055\u305d\u3046\uff01<\/li>\n<li style=\"margin-left: 56px; line-height: 21px; min-height: 0px; text-align: left; white-space: pre-wrap;\">\u597d\u304d\u306a\u3082\u306e\u3068\u3044\u3048\u3070\u72ac\uff01\u3064\u3044\u3067\u3046\u3061\u306e\u98fc\u3063\u3066\u3044\u308b\u308f\u3093\u3053\u3092\u7d39\u4ecb\u3057\u3088\u3046\uff01<\/li>\n<li style=\"margin-left: 56px; line-height: 21px; min-height: 0px; text-align: left; white-space: pre-wrap;\">\u3067\u3082\u3044\u304f\u3089\u304b\u308f\u3044\u3044\u3068\u306f\u3044\u3048\u5358\u7d14\u306b\u753b\u50cf\u3092\u8cbc\u308a\u4ed8\u3051\u3066\u3044\u308b\u3068\u3001\u98fd\u304d\u3061\u3083\u3046\u3057\u305d\u3082\u305d\u3082\u81ea\u5df1\u7d39\u4ecb\u3058\u3083\u306a\u304f\u3066\u72ac\u7d39\u4ecb\u306b\u306a\u3063\u3061\u3083\u3046\u306a\u3002\u3002\u3002<\/li>\n<li style=\"margin-left: 56px; line-height: 21px; min-height: 0px; text-align: left; white-space: pre-wrap;\">\u305d\u3046\u3060\uff01MATLAB\u3067\u4f55\u304b\u5b9f\u88c5\u3057\u3066\u305d\u306e\u30b5\u30f3\u30d7\u30eb\u3068\u3057\u3066\u3046\u3061\u306e\u5b50\u3092\u4f7f\u304a\u3046\uff01<\/li>\n<li style=\"margin-left: 56px; line-height: 21px; min-height: 0px; text-align: left; white-space: pre-wrap;\">\u5b9f\u88c5\u3059\u308b\u306a\u3089\u3053\u305310\u5e74\u304f\u3089\u3044\u305a\u3063\u3068\u6d41\u884c\u308a\u306eDeep Learning \u304b\u3064\u3001 MATLAB\u516c\u5f0f\u5b9f\u88c5\u3067\u306f\u7528\u610f\u3055\u308c\u3066\u306a\u304f\u3066\u81ea\u524d\u5b9f\u88c5\u304c\u5fc5\u8981\u3000\u3060\u3068<span style=\"font-weight: bold;\">\u4f1a\u793e\u306e\u7686\u3055\u3093\u306e\u30a6\u30b1\u304c\u826f\u3055\u305d\u3046<\/span>\uff08\u3042\u3068\u3001\u5b9f\u88c5\u304c\u6bd4\u8f03\u7684\u7c21\u5358\u306b\u3067\u304d\u308c\u3070\u3082\u3063\u3068\u3044\u3044\uff08\u7b11\uff09\uff09<\/li>\n<\/ol>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u3068\u8003\u3048\u3066\u3044\u304f\u4e2d\u3067ArcFace\u306b\u305f\u3069\u308a\u7740\u304d\u307e\u3057\u305f\uff01<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">ArcFace\u306f<\/div>\n<ol style=\"margin: 10px 0px 20px; padding-left: 0px; font-family: Helvetica, Arial, sans-serif; font-size: 14px;\">\n<li style=\"margin-left: 56px; line-height: 21px; min-height: 0px; text-align: left; white-space: pre-wrap;\">\u8ddd\u96e2\u5b66\u7fd2\u306e\u4e00\u3064\u3067\u3042\u308a\u3001\u300c\u672a\u5b66\u7fd2\u306e\u4eba\u306e\u9854\u306e\u985e\u4f3c\u5ea6\u306e\u8a08\u7b97\u300d\u3084\u300c\u7570\u5e38\u691c\u77e5\u300d\u306a\u3069\u304c\u3067\u304d\u3066\u9b45\u305b\u65b9\u304c\u8272\u3005\u8003\u3048\u3089\u308c\u305d\u3046\uff01<\/li>\n<li style=\"margin-left: 56px; line-height: 21px; min-height: 0px; text-align: left; white-space: pre-wrap;\">\u5206\u985e\u7528\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6700\u7d42\u51fa\u529b\u3092\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u5b9f\u88c5\u3067\u304d\u3066\u7c21\u5358\u3000\uff08<span style=\"font-weight: bold;\">MATLAB <\/span>\u306a\u3089\u753b\u50cf\u7528\u306b <span style=\"font-weight: bold;\">pretrain \u6e08\u307f\u306e ResNet <\/span>\u304c\u3042\u308b\u3002\u6700\u7d42\u5c64\u3092\u3044\u3058\u3063\u3066\u8ee2\u79fb\u5b66\u7fd2\u3067\u3064\u304f\u308c\u305d\u3046\uff01\uff09<\/li>\n<\/ol>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u3068\u3044\u3046\u3053\u3068\u3067\u826f\u3055\u305d\u3046\u3060\u306a\u3001\u3068\u9078\u3073\u307e\u3057\u305f\u3002ArcFace \u3092 MATLAB \u5b9f\u88c5\u3057\u305f\u30b3\u30fc\u30c9\u306f <a href=\"https:\/\/github.com\/fukuchi0105\/Implementation-ArcFace-in-MATLAB\" class=\"external\" rel=\"nofollow\" target=\"_blank\">Github<\/a> \u306b\u516c\u958b\u3057\u3066\u304a\u308a\u307e\u3059\uff01\u305d\u306e\u307e\u307e\u5b66\u7fd2\u3001\u30c6\u30b9\u30c8\u3067\u304d\u308b\u306e\u3067\u305c\u3072\u4e00\u5ea6\u52d5\u304b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\uff01<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u3061\u306a\u307f\u306b\u3053\u308c\u304c\u3046\u3061\u306e\u304b\u308f\u3044\u3044\u611b\u72ac\u3067\u3059\uff01\u300c<span style=\"font-weight: bold;\">\u3053\u307e\u3061<\/span>\u300d\u3068\u3044\u3044\u307e\u3059\uff01<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><img decoding=\"async\" loading=\"lazy\" class=\"imageNode\" style=\"vertical-align: baseline; width: 745px; height: 284px;\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_1.png\" alt=\"\" width=\"745\" height=\"284\" \/><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u306f\u3044\u3001<span style=\"font-weight: bold;\">\u304b\u308f\u3044\u3044<\/span>\u3000\u7d39\u4ecb\u3067\u304d\u3066\u3088\u304b\u3063\u305f<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u5148\u306b\u7c21\u5358\u306b\u7d39\u4ecb\u3057\u307e\u3057\u305f\u304c\u3001\u6df1\u5c64\u8ddd\u96e2\u5b66\u7fd2\u306e\u624b\u6cd5\u306e\u4e00\u3064\u3067\u3059\u3002\u901a\u5e38\u306e\u5206\u985e\u554f\u984c\u306b\u52a0\u3048\u3066\u8ad6\u6587\u4e2d\u3067 &#8220;margin loss&#8221; \u3068\u547c\u3070\u308c\u308bloss\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u4e0b\u306e\u753b\u50cf\u306b\u304a\u3051\u308b\u3001\u300c\u30af\u30e9\u30b9 1 \u306e\u4e2d\u5fc3 <span style=\"vertical-align: -6px;\">$ W_1 $<\/span> \u3068\u30af\u30e9\u30b9 1 \u306e\u30b5\u30f3\u30d7\u30eb <span style=\"vertical-align: -6px;\">$ x_{11} $<\/span> \u9593\u306e\u8ddd\u96e2 <span style=\"vertical-align: -6px;\">$ d_{12} $<\/span> \u304c\u30af\u30e9\u30b9 2 \u306e\u4e2d\u5fc3 <span style=\"vertical-align: -6px;\">$ W_2 $<\/span> \u3068\u30af\u30e9\u30b9 1 \u306e\u30b5\u30f3\u30d7\u30eb <span style=\"vertical-align: -6px;\">$ x_{11} $<\/span> \u9593\u306e\u8ddd\u96e2 <span style=\"vertical-align: -6px;\">$ d_{22} $<\/span> \u306b\u5bfe\u3057\u3066\u8a2d\u5b9a\u3057\u305f\u30de\u30fc\u30b8\u30f3 <span style=\"font-weight: bold; font-style: italic;\">m <\/span>\u4ee5\u4e0a\u306e\u5dee\u304c\u751f\u307e\u308c\u308b\u300d\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u5b66\u7fd2\u3055\u308c\u305f\u7d50\u679c\u5404\u30b5\u30f3\u30d7\u30eb\u306f\u3001<span style=\"font-weight: bold;\">\u5206\u985e\u3055\u308c\u305f\u30af\u30e9\u30b9\u4e2d\u5fc3\u3068\u306e\u8ddd\u96e2\u304c\u3088\u308a\u8fd1\u304f<\/span>\u3001<span style=\"font-weight: bold;\">\u4ed6\u306e\u30af\u30e9\u30b9\u4e2d\u5fc3\u3068\u306e\u8ddd\u96e2\u306f\u3088\u308a\u9060\u304f<\/span>\u306a\u308b\u3088\u3046\u306b\u7279\u5fb4\u91cf\u3092\u5b66\u7fd2\u3057\u307e\u3059\u3002ArcFace \u3067\u306f\u3053\u306e\u30af\u30e9\u30b9\u4e2d\u5fc3\u3068\u30b5\u30f3\u30d7\u30eb\u306e\u7279\u5fb4\u3092\u6b63\u898f\u5316\u3057\u305f\u5927\u304d\u30551\u306e\u7279\u5fb4\u7a7a\u9593\uff08\uff1d\u8d85\u7403\u9762\u4e0a\uff09\u3067\u8868\u73fe\u3059\u308b\u3053\u3068\u3067\u3001\u8ddd\u96e2\u3092 cosine \u985e\u4f3c\u5ea6\u3067\u8868\u73fe\u3067\u304d\u307e\u3059\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><img decoding=\"async\" loading=\"lazy\" class=\"imageNode\" style=\"vertical-align: baseline; width: 699px; height: 409px;\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_2.png\" alt=\"\" width=\"699\" height=\"409\" \/><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u305d\u306e\u305f\u3081\u306b\u3001\u30af\u30e9\u30b9\u5206\u985e\u306e\u6700\u7d42\u5c64\u3067\u3042\u308b softmax \u5c64\u306e\u524d\u306b\u3001\u7279\u5fb4\u7a7a\u9593\u306e\u6b63\u898f\u5316\uff0b\u6b63\u89e3\u30af\u30e9\u30b9\u4e2d\u5fc3\u3078\u306e\u30de\u30fc\u30b8\u30f3\u8ffd\u52a0\u3000\u3092\u884c\u3046\u5c64\u3092\u8ffd\u52a0\uff08\u307e\u305f\u306f\u3001\u5168\u7d50\u5408\u5c64\u306e\u7f6e\u63db\uff09\u3057\u307e\u3059\u3002\u9006\u306b\u8a00\u3048\u3070\u3001\u305d\u308c\u3060\u3051\u3067\u30b5\u30f3\u30d7\u30eb\u540c\u58eb\u3084\u30af\u30e9\u30b9\u4e2d\u5fc3\u3068\u306e\u8ddd\u96e2\u306e\u6982\u5ff5\uff08\uff1dcosine \u985e\u4f3c\u5ea6\uff09\u3092\u5c0e\u5165\u3067\u304d\u308b\u512a\u308c\u30e2\u30ce\u3067\u3059\u3002\u3053\u306e\u30de\u30fc\u30b8\u30f3 <span style=\"font-style: italic;\">m <\/span>\u306f\u3001\u5b66\u7fd2\u6642\u306b Loss \u304c\u5927\u304d\u304f\u306a\u308b\u3088\u3046\u3001\u6b63\u89e3\u30af\u30e9\u30b9\u3092\u51fa\u529b\u3057\u3065\u3089\u304f\u306a\u308b\u3088\u3046\u306b Penalty \u3092\u4e0e\u3048\u308b\u3088\u3046\u306a\u51e6\u7406\u3068\u89e3\u91c8\u3067\u304d\u307e\u3059\u3002\u6b63\u898f\u5316\u3092\u3057\u305f\u307e\u307e\u3067\u306f\u3001\u540c\u4e00\u30af\u30e9\u30b9\u306e\u7279\u5fb4\u3092\u8fd1\u304f\u306b\u3001\u7570\u306a\u308b\u30af\u30e9\u30b9\u306e\u7279\u5fb4\u3092\u9060\u304f\u306b\u57cb\u3081\u8fbc\u3080\u305f\u3081\u306e\u8868\u9762\u7a4d\u304c\u9650\u3089\u308c\u3066\u3044\u308b\u306e\u3067\u3001\u6700\u5f8c\u30d1\u30e9\u30e1\u30fc\u30bf <span style=\"font-style: italic;\">s <\/span>\u3067\u30b9\u30b1\u30fc\u30eb\u500d\u3057\u3066 softmax \u306b\u6e21\u3057\u307e\u3059\u3002<span style=\"font-style: italic;\">m, s <\/span>\u304c ArcFace \u306e\u30cf\u30a4\u30d1\u30fc\u30d1\u30e9\u30e1\u30fc\u30bf\u306b\u306a\u308a\u307e\u3059\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><img decoding=\"async\" loading=\"lazy\" class=\"imageNode alignnone\" style=\"vertical-align: baseline; width: 931px; height: 458px;\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_3.png\" alt=\"\" width=\"931\" height=\"458\" \/><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u4e0b\u8a18\u306f\u901a\u5e38\u306e\u5206\u985e\u7d50\u679c\u3068 ArcFace \u306e\u5206\u985e\u7d50\u679c\u3092\u8868\u793a\u3057\u3066\u3044\u308b\u8ad6\u6587\u4e2d\u306e\u56f3\u3067\u3059\u3002\u5404\u8272\u304c\u305d\u308c\u305e\u308c\u30af\u30e9\u30b9\u3092\u8868\u3057\u3066\u304a\u308a\u3001\u5404\u70b9\u304c\u305d\u306e\u30af\u30e9\u30b9\u306b\u5206\u985e\u3055\u308c\u305f\u30b5\u30f3\u30d7\u30eb\u3001\u7dda\u306f\u30af\u30e9\u30b9\u4e2d\u5fc3\u3092\u793a\u3057\u3066\u307e\u3059\u3002\u4e8c\u6b21\u5143\u306a\u306e\u3067\u5186\u4e0a\uff08\u8d85\u7403\u9762\u304c\u4e8c\u6b21\u5143\u3067\u306f\u5186\uff09\u306b\u30af\u30e9\u30b9\u30b5\u30f3\u30d7\u30eb\u3068\u30af\u30e9\u30b9\u4e2d\u5fc3\u304c\u5b58\u5728\u3057\u3066\u307e\u3059\u3002softmax \u306e\u307f\u306e\u5b66\u7fd2\u306b\u5bfe\u3057\u3066 ArcFace \u3067\u306e\u5b66\u7fd2\u7d50\u679c\u306e\u307b\u3046\u304c\u5404\u30af\u30e9\u30b9\u304c\u30b3\u30f3\u30d1\u30af\u30c8\u306b\u307e\u3068\u307e\u3063\u3066\u304a\u308a\u3001<span style=\"font-weight: bold;\">\u5404\u30b5\u30f3\u30d7\u30eb\u306b\u3064\u3044\u3066\u3001\u5206\u985e\u3055\u308c\u305f\u30af\u30e9\u30b9\u306e\u30af\u30e9\u30b9\u4e2d\u5fc3\u3068\u306e\u8ddd\u96e2\u304c\u3088\u308a\u8fd1\u304f<\/span>\u3001<span style=\"font-weight: bold;\">\u4ed6\u306e\u30af\u30e9\u30b9\u4e2d\u5fc3\u3068\u306e\u8ddd\u96e2\u306f\u3088\u308a\u9060\u304f<\/span>\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><img decoding=\"async\" loading=\"lazy\" class=\"imageNode\" style=\"vertical-align: baseline; width: 664px; height: 257px;\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_4.png\" alt=\"\" width=\"664\" height=\"257\" \/><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u7a81\u7136\u3067\u3059\u304c\u3001\u307f\u306a\u3055\u3093\u306f\u5148\u307b\u3069\u8f09\u305b\u3066\u3044\u305f\u300c\u3053\u307e\u3061\u300d\u306e\u72ac\u7a2e\u304c\u4f55\u304b\u308f\u304b\u308a\u307e\u3059\u304b\uff1f\u8fd1\u6240\u3092\u6563\u6b69\u3055\u305b\u3066\u3044\u308b\u3068\u3001\u3088\u304f\u300c\u67f4\u72ac\uff1f\u300d\u3068\u304b\u300c\u30c1\u30ef\u30ef\uff1f\u300d\u3068\u304b\u58f0\u3092\u304b\u3051\u3089\u308c\u307e\u3059\u3002\u307f\u306a\u3055\u3093\u81ea\u4fe1\u304c\u7121\u3055\u305d\u3046\u306a\u306e\u3067\u3069\u3053\u304b\u96f0\u56f2\u6c17\u306e\u9055\u3044\u3092\u611f\u3058\u53d6\u3089\u308c\u3066\u3044\u308b\u306e\u3060\u3068\u601d\u3044\u307e\u3059\u3002\u6b63\u89e3\u306f\u300c\u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\u00d7\u67f4\u72ac\u306e MIX\u300d\u3067\u3059\uff01\u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\u306e\u8840\u304c\u5165\u3063\u3066\u3044\u308b\u306e\u3067\u3059\u304c\u3001\u4e0d\u601d\u8b70\u306a\u3053\u3068\u306b\u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\u304b\u5c0b\u306d\u3089\u308c\u308b\u3053\u3068\u306f\u3042\u307e\u308a\u3042\u308a\u307e\u305b\u3093\u3002\u304a\u305d\u3089\u304f\u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\u306f\u307e\u3060\u98fc\u308f\u308c\u3066\u3044\u308b\u6570\u304c\u591a\u304f\u306a\u3044\u304b\u3089\uff08\u6700\u8fd1\u306f\u5897\u3048\u3066\u304d\u3066\u308b\u3089\u3057\u3044\u3067\u3059\u304c\uff09\u3001\u77e5\u3063\u3066\u3044\u308b\u72ac\u7a2e\u3067\u63a8\u5b9a\u3059\u308b\u30d0\u30a4\u30a2\u30b9\u304c\u304b\u304b\u3063\u3066\u3044\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002<a href=\"https:\/\/petfood.or.jp\/data\/chart2021\/index.html\" class=\"external\" rel=\"nofollow\" target=\"_blank\">\u4ee4\u548c2\u5e74\u5168\u56fd\u72ac\u732b\u5b9f\u614b\u8abf\u67fb<\/a>\u306b\u3088\u308b\u3068\u67f4\u72ac\u3001\u30c1\u30ef\u30ef\u306e\u6570\u306f\u5727\u5012\u7684\u3067\u3059\u306d<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><img decoding=\"async\" loading=\"lazy\" class=\"imageNode\" style=\"vertical-align: baseline; width: 290px; height: 218px;\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_5.png\" alt=\"\" width=\"290\" height=\"218\" \/><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u305d\u3053\u3067\u3001\u4eca\u56de\u306f ArcFace \u306e\u300c\u30b5\u30f3\u30d7\u30eb\u3068\u30af\u30e9\u30b9\u4e2d\u5fc3\u306e\u8ddd\u96e2\u300d\u304c\u8a08\u7b97\u3067\u304d\u308b\u70b9\u3092\u6d3b\u7528\u3057\u3088\u3046\u3068\u601d\u3044\u307e\u3059\u3002\u3053\u307e\u3061\u306e\u753b\u50cf\u3092\u30b5\u30f3\u30d7\u30eb\u3068\u3057\u3066\u5165\u529b\u3057\u3001\u300c\u67f4\u72ac\u300d\u30af\u30e9\u30b9\u3084\u300c\u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\u300d\u30af\u30e9\u30b9\u3068\u306e\u8ddd\u96e2\uff1d <span style=\"font-weight: bold;\">cosine \u985e\u4f3c\u5ea6\u3092\u8a08\u7b97<\/span>\u3059\u308b\u3053\u3068\u3067\u3001AI \u7684\u306b<span style=\"font-weight: bold;\">\u3053\u307e\u3061\u304c\u3069\u306e\u72ac\u7a2e\u306b\u4f3c\u3066\u3044\u308b\u306e\u304b\u3001<\/span>\u305d\u308c\u305e\u308c\u306e\u72ac\u7a2e\u3068\u306e\u985e\u4f3c\u5ea6\u3092\u51fa\u3057\u3066\u3082\u3089\u304a\u3046\u3068\u601d\u3044\u307e\u3059\uff01<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u4eca\u56de\u306f <a href=\"https:\/\/www.robots.ox.ac.uk\/~vgg\/data\/pets\/\" class=\"external\" rel=\"nofollow\" target=\"_blank\">Oxford pet dataset<\/a> \u3092\u4f7f\u7528\u3057\u3066\u5b66\u7fd2\u3057\u307e\u3057\u305f\uff0137\u7a2e\u985e\u306e\u30da\u30c3\u30c8\u753b\u50cf\u304c\u305d\u308c\u305e\u308c 200 \u679a\u7a0b\u516c\u958b\u3055\u308c\u3066\u304a\u308a\u3001\u3057\u304b\u3082\u3001\u9854\u90e8\u5206\u306bbounding box \u304c\u632f\u3089\u308c\u3066\u3044\u308b\u305f\u3081\u3001\u72ac\u7a2e\u306e\u985e\u4f3c\u5ea6\u3092\u7c21\u5358\u306b\u7b97\u51fa\u3067\u304d\u305d\u3046\u3067\u3059\uff01\u300c\u3053\u307e\u3061\u300d\u306f\u67f4\u72ac\u3001\u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\u3001\u30c1\u30ef\u30ef\u306b\u4f3c\u3066\u3044\u308b\u3068\u6563\u6b69\u4e2d\u306b\u8a00\u308f\u308c\u307e\u3057\u305f\u304c\u3001\u305d\u306e 3 \u72ac\u7a2e\u3082\u5165\u3063\u3066\u3044\u308b\u306e\u3067\u305d\u308c\u305e\u308c\u3068\u306e\u8ddd\u96e2\u3092\u6e2c\u308c\u307e\u3059\uff01<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><img decoding=\"async\" loading=\"lazy\" class=\"imageNode\" style=\"vertical-align: baseline; width: 693px; height: 352px;\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_6.png\" alt=\"\" width=\"693\" height=\"352\" \/><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u5b66\u7fd2\u3092\u307e\u308f\u3057\u3066\u307f\u305f\u3068\u3053\u308d\u3001\u3044\u3044\u611f\u3058\u3067\u3059\uff01<a href=\"https:\/\/jp.mathworks.com\/help\/deeplearning\/ref\/dlnetwork.html\">\u516c\u5f0f\u30c9\u30ad\u30e5\u30e1\u30f3\u30c8<\/a>\u306b\u5b66\u7fd2\u306e\u4e00\u9023\u306e\u6d41\u308c\u304c\u8f09\u3063\u3066\u304a\u308a\u3061\u3087\u3053\u3063\u3068\u5909\u66f4\u3059\u308b\u3060\u3051\u3067\u30b0\u30e9\u30d5\u306e\u53ef\u8996\u5316\u304c\u7c21\u5358\u306b\u3067\u304d\u308b\u306e\u304c\u5b09\u3057\u3044\u3067\u3059\u306d\u3002\u6700\u7d42\u7684\u306b\u826f\u3055\u305d\u3046\u3060\u3068\u601d\u3063\u3066\u5b66\u7fd2\u7d50\u679c\u304c\u3053\u3061\u3089\u3067\u3059\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><img decoding=\"async\" loading=\"lazy\" class=\"imageNode\" style=\"vertical-align: baseline; width: 599px; height: 527px;\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_7.png\" alt=\"\" width=\"599\" height=\"527\" \/><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u4e0a\u306e\u30b0\u30e9\u30d5\u304c Loss,\u4e0b\u306e\u30b0\u30e9\u30d5\u304c \u5206\u985e\u554f\u984c\u306e\u6b63\u89e3\u7387\u3067\u3059\u3002\u3053\u306e\u30b0\u30e9\u30d5\u3092\u898b\u306a\u304c\u3089\u9806\u8abf\u306b Loss \u304c\u4e0b\u304c\u3063\u3066\u6b63\u89e3\u7387\u304c\u4e0a\u304c\u308b\u3088\u3046\u306b\u30cf\u30a4\u30d1\u30fc\u30d1\u30e9\u30e1\u30fc\u30bf\u3092\u8abf\u6574\u3057\u3066\u307e\u3057\u305f\uff01\u5b66\u7fd2\u30c7\u30fc\u30bf\u3067 98 %\u3001\u691c\u8a3c\u30c7\u30fc\u30bf\u3067\u3082\u6b63\u89e3\u7387\u304c 94 %\u306a\u306e\u3067\u3001\u304a\u904a\u3073\u306e\u4eca\u56de\u306f\u3053\u306e\u304f\u3089\u3044\u3067\u3088\u3044\u304b\u306a\u3068\u3068\u3044\u3046\u3053\u3068\u3067\u63a1\u7528\u3057\u307e\u3057\u305f\uff01\uff08\u672c\u5f53\u306f\u300c\u5b9f\u9a13\u30de\u30cd\u30fc\u30b8\u30e3\u300d\u3067\u30cf\u30a4\u30d1\u30fc\u30d1\u30e9\u30e1\u30fc\u30bf\u306e\u30b5\u30fc\u30c1\u3092\u884c\u3063\u305f\u308a\u3001\u30c7\u30fc\u30bf\u62e1\u5f35\u3092\u771f\u9762\u76ee\u306b\u3084\u3063\u305f\u65b9\u304c\u826f\u3044\u7d50\u679c\u306f\u3067\u308b\u3093\u3067\u3057\u3087\u3046\u3051\u3069\uff08\u7b11\uff09\uff09<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u5b66\u7fd2\u5f8c\u306e\u5404\u30af\u30e9\u30b9\u3068\u306e cosine \u985e\u4f3c\u5ea6\u3092\u8868\u793a\u3057\u305f\u7d50\u679c\u304c\u3053\u3061\u3089\u3067\u3059\uff01\u6b63\u89e3\u30e9\u30d9\u30eb\u306e\u300cnewfoundland\u300d\u306b Penalty \u304c\u4ed8\u4e0e\u3055\u308c\u3066\u985e\u4f3c\u5ea6\u304c\u6e1b\u5c11\u3057\u3066\u3044\u308b\u306e\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u305d\u306e\u304a\u304b\u3052\u3067\u5b66\u7fd2\u6642\u306f Loss \u304c\u5927\u304d\u3081\u306b\u51fa\u3066\u3001\u3088\u308a\u6b63\u89e3\u3068\u306e\u985e\u4f3c\u5ea6\u304c\u5927\u304d\u304f\u3001\u4ed6\u306e\u985e\u4f3c\u5ea6\u3092\u5c0f\u3055\u304f\u3059\u308b\u3088\u3046\u306b\u5b66\u7fd2\u304c\u9032\u3093\u3060\u3093\u3067\u3059\u306d\u3002\u304a\u304b\u3052\u3067 Penalty \u306a\u3057\u306e\u51fa\u529b\u3067\u306f\u3001\u4ed6\u30af\u30e9\u30b9\u306e\u51fa\u529b\u3068\u985e\u4f3c\u5ea6\u3067\u5927\u304d\u306a\u30ae\u30e3\u30c3\u30d7\u304c\u3042\u308b\u306e\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><img decoding=\"async\" loading=\"lazy\" class=\"imageNode alignnone\" style=\"vertical-align: baseline; width: 609px; height: 457px;\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_8.png\" alt=\"\" width=\"609\" height=\"457\" \/><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u5b66\u7fd2\u3082\u305d\u3053\u305d\u3053\u3046\u307e\u304f\u3044\u3063\u305f\u306e\u3067\u3001\u3044\u3088\u3044\u3088\u300c\u3053\u307e\u3061\u300d\u304c\u3069\u306e\u72ac\u7a2e\u306b\u4f3c\u3066\u3044\u308b\u306e\u304b\u5224\u5b9a\u3055\u305b\u3066\u307f\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u671f\u5f85\u3068\u3057\u3066\u306f\u3001\u3084\u3063\u3071\u308a\u300c\u67f4\u72ac\u300d\u3068\u300c\u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\u300d\u306e\u4e21\u65b9\u306e\u985e\u4f3c\u5ea6\u304c\u9ad8\u3044\u3053\u3068\u3067\u3059\u304c\u30fb\u30fb\u30fb\uff01<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-5464\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_9-1-1024x404.png\" alt=\"\" width=\"804\" height=\"318\" \/><\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u3093\u30fb\u30fb\u30fb\uff1f<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u78ba\u304b\u306b\u4f3c\u3066\u3044\u308b\u3068\u8a00\u308f\u308c\u3066\u3044\u308b\u30c1\u30ef\u30ef\u3084\u3001\u67f4\u72ac\u3001\u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\u306e\u985e\u4f3c\u5ea6\u304c\u5927\u304d\u3044\u7d50\u679c\u304c\u51fa\u305f\u306e\u3067\u3059\u304c\u3001\u306a\u305c\u30c1\u30ef\u30ef\u304c\u4e00\u756a\u9ad8\u3044\uff1f\u3084\u306f\u308a\u4f3c\u3066\u3044\u308b\u306e\u304b\u3002\u3002\u3002\u3057\u304b\u3057\u3001\u753b\u50cf\u9055\u3044\u3067\u306f\u67f4\u72ac\u4e00\u629e\u306e\u3088\u3046\u306a\u7d50\u679c\u306b\u306a\u3063\u3066\u3044\u308b\u3002\u5199\u771f\u306e\u53d6\u308a\u65b9\u3084\u898b\u3048\u308b\u89d2\u5ea6\u3067\u3069\u306e\u72ac\u7a2e\u306b\u4f3c\u3066\u3044\u308b\u306e\u304b\u304c\u5909\u308f\u308b\u72ac\u3063\u3066\u3053\u3068\u306a\u306e\u304b\u30fb\u30fb\u30fb\u4f55\u3092\u4ee5\u3066\u3057\u3066\u305d\u308c\u305e\u308c\u306e\u5224\u5b9a\u3092\u3057\u3066\u3044\u308b\u306e\u304b\u304c\u6c17\u306b\u306a\u308b\u3068\u3053\u308d\u3067\u3059\u3002<a href=\"https:\/\/jp.mathworks.com\/help\/deeplearning\/ug\/gradcam-explains-why.html\">GradCAM<\/a> \u3084<a href=\"https:\/\/jp.mathworks.com\/help\/deeplearning\/ug\/understand-network-predictions-using-occlusion.html\">occlusionSensitivity<\/a> \u3068\u304b\u3092\u4f7f\u3048\u3070\u3001\u8033\u3068\u304b\u76ee\u3068\u304b\u3069\u3053\u306e\u90e8\u4f4d\u3067\u305d\u308c\u305e\u308c\u306e\u30af\u30e9\u30b9\u5224\u5b9a\u304c\u8d77\u304d\u3066\u3044\u308b\u306e\u304b\u304c\u308f\u304b\u308a\u305d\u3046\u3067\u3059\u306d\uff08\u30c1\u30ef\u30ef\u3068\u5224\u5b9a\u3055\u308c\u308b\u306e\u306f\u3001\u30c1\u30ef\u30ef\u3068\u30dd\u30e1\u30e9\u30cb\u30a2\u30f3\u304c\u4e21\u65b9\u307e\u3093\u4e38\u9ed2\u76ee\u304c\u4f3c\u3066\u3044\u308b\u304b\u3089\u306a\u6c17\u304c\u3057\u307e\u3059\uff01\u305d\u3053\u3089\u3078\u3093\u304c\u308f\u304b\u3063\u305f\u3089\u304a\u3082\u3057\u308d\u3044\u3067\u3059\u306d\uff01\uff09<\/div>\n<h2 style=\"margin: 20px 10px 5px 4px; padding: 0px; line-height: 20px; min-height: 0px; white-space: pre-wrap; color: #3c3c3c; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 20px; font-weight: bold; text-align: left;\">\u307e\u3042<span style=\"font-weight: bold;\">\u4e00\u5339\u30673\u72ac\u7a2e\u5206\u304b\u308f\u3044\u3044<\/span>\u3063\u3066\u3053\u3068\u304b\u306a<\/h2>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u4eca\u56de\u306f\u5b9f\u88c5\u3057\u305f ArcFace \u3068\u611b\u72ac\u306e\u7d39\u4ecb\u3092\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\uff01ArcFace\u3067\u306f\u3001\u30b5\u30f3\u30d7\u30eb\u306e\u7279\u5fb4\u91cf\u3068\u30af\u30e9\u30b9\u4e2d\u5fc3\u3068\u306e\u985e\u4f3c\u5ea6\u3092\u8a08\u7b97\u3057\u3066\u300c\u3053\u307e\u3061\u300d\u304c\u3069\u306e\u72ac\u7a2e\u306b\u4f3c\u3066\u3044\u308b\u304b\u3092\u5224\u5b9a\u3057\u3066\u307e\u3057\u305f\u3002\u4eba\u306e\u9854\u5206\u985e\u306b\u3064\u3044\u3066\u5b66\u7fd2\u3055\u305b\u3066\u30b5\u30f3\u30d7\u30eb\u540c\u58eb\u306e\u7279\u5fb4\u91cf\u306e\u985e\u4f3c\u5ea6\u3092\u6bd4\u8f03\u3059\u308c\u3070\u3001\u9854\u306e\u985e\u4f3c\u5ea6\u6bd4\u8f03\u306a\u3093\u304b\u3082\u3067\u304d\u308b\u3088\u3046\u3067\u3059\uff08\u3068\u3044\u3046\u304b\u3001\u672c\u5f53\u306f\u305d\u3063\u3061\u304c\u30e1\u30a4\u30f3\uff09\u3002\u307e\u305f\u3001\u4eca\u56de\u306f\u624b\u52d5\u3067\u8a2d\u5b9a\u3057\u305f\u30cf\u30a4\u30d1\u30fc\u30d1\u30e9\u30e1\u30fc\u30bf\uff08\uff09\u3092\u6700\u9069\u306b\u8a2d\u5b9a\u3059\u308b <a href=\"https:\/\/arxiv.org\/abs\/1905.00292\" class=\"external\" rel=\"nofollow\" target=\"_blank\">AdaCos<\/a> \u3068\u3044\u3046\u306e\u3082\u63d0\u6848\u3055\u308c\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002\u65e5\u3005\u65b0\u3057\u3044\u624b\u6cd5\u304c\u63d0\u6848\u3055\u308c\u3066\u3044\u3066\u308f\u304f\u308f\u304f\u3057\u307e\u3059\u306d\uff01<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u4eca\u56de\u79c1\u304c\u4f5c\u6210\u3057\u305f\u30d7\u30ed\u30b0\u30e9\u30e0\u3001\u30c7\u30fc\u30bf\u306f\u4e38\u3054\u3068 <a href=\"https:\/\/github.com\/fukuchi0105\/Implementation-ArcFace-in-MATLAB\" class=\"external\" rel=\"nofollow\" target=\"_blank\">Github<\/a> \u3067\u516c\u958b\u3057\u3066\u3044\u307e\u3059\u3002\u662f\u975e\u3054\u6d3b\u7528\u304f\u3060\u3055\u3044\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\">\u6700\u5f8c\u307e\u3067\u8aad\u3093\u3067\u304f\u3060\u3055\u308a\u3001\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002<\/div>\n<div style=\"margin: 2px 10px 9px 4px; padding: 0px; line-height: 21px; min-height: 0px; white-space: pre-wrap; color: #000000; font-family: Helvetica, Arial, sans-serif; font-style: normal; font-size: 14px; font-weight: 400; text-align: left;\"><\/div>\n<\/div>\n<p><script type=\"text\/javascript\">var css = ''; var head = document.head || document.getElementsByTagName('head')[0], style = document.createElement('style'); head.appendChild(style); style.type = 'text\/css'; if (style.styleSheet){ style.styleSheet.cssText = css; } else { style.appendChild(document.createTextNode(css)); }<\/script><a href=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog.mlx\"><button class=\"btn btn-sm btn_color_blue pull-right add_margin_10\">Download Live Script<\/button><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"overview-image\"><img decoding=\"async\"  class=\"img-responsive\" src=\"https:\/\/blogs.mathworks.com\/japan-community\/files\/2022\/03\/arcface_blog_1.png\" onError=\"this.style.display ='none';\" \/><\/div>\n<p>\u4eca\u56de\u306f\u6700\u8fd1\u5165\u793e\u3055\u308c\u305f\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u30a8\u30f3\u30b8\u30cb\u30a2\u798f\u5730\u3055\u3093\u306e\u6295\u7a3f\u3067\u3059\u3002<br \/>\n\u611b\u72ac\u3092\u7d39\u4ecb\u3059\u308b\u305f\u3081\u306b\u6df1\u5c64\u8ddd\u96e2\u5b66\u7fd2\u306e ArcFace \u3092\u5b9f\u88c5\u3059\u308b\u3068\u3044\u3046\u524d\u4ee3\u672a\u805e\u306e\u81ea\u5df1\u7d39\u4ecb\u30d7\u30ec\u30bc\u30f3\u3092\u7e70\u308a\u51fa\u3057\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002\u3053\u308c\u3092\u793e\u5185\u306b\u3068\u3069\u3081\u3066\u304a\u304f\u306e\u306f\u3082\u3063\u305f\u3044\u306a\u3055\u3059\u304e\u308b\u30fb\u30fb\u3068\u3044\u3046\u3053\u3068\u3067\u7121\u7406\u8a00\u3063\u3066\u3053\u3061\u3089\u306b\u767b\u5834\u9802\u304d\u307e\u3057\u305f\u3002<br \/>\n\u30b3\u30fc\u30c9\u3082 Github: Implementation-ArcFace-in-MATLAB&#8230; <a class=\"read-more\" href=\"https:\/\/blogs.mathworks.com\/japan-community\/2022\/03\/10\/deep-metric-learning-matlab\/\">read more >><\/a><\/p>\n","protected":false},"author":159,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[61,79],"tags":[],"_links":{"self":[{"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/posts\/5404"}],"collection":[{"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/users\/159"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/comments?post=5404"}],"version-history":[{"count":10,"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/posts\/5404\/revisions"}],"predecessor-version":[{"id":5473,"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/posts\/5404\/revisions\/5473"}],"wp:attachment":[{"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/media?parent=5404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/categories?post=5404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogs.mathworks.com\/japan-community\/wp-json\/wp\/v2\/tags?post=5404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}