{"id":2489,"date":"2025-02-08T14:20:33","date_gmt":"2025-02-08T06:20:33","guid":{"rendered":"https:\/\/tobykskgd.life\/?p=2489"},"modified":"2025-02-08T14:25:47","modified_gmt":"2025-02-08T06:25:47","slug":"106","status":"publish","type":"post","link":"https:\/\/tobykskgd.life\/index.php\/106\/","title":{"rendered":"GRPO Trainer\uff08\u6df1\u5165\u4e86\u89e3GRPO\uff09"},"content":{"rendered":"\n<p>\u672c\u6587\u7ae0\u5c06\u63a5\u7740\u524d\u4e00\u7bc7\u5173\u4e8eDeepSeek-R1\u6765\u66f4\u8fd1\u4e00\u6b65\u8bf4\u660e\u5176\u4e2d\u7684\u5173\u952e\u7b97\u6cd5GRPO\u3002\u672c\u6587\u5c06\u5927\u91cf\u53c2\u8003\uff08CV\u5927\u6cd5\uff09DeepSeek\u56e2\u961f\u5728Hungging Face\u4e0a\u7684GRPO\u4ecb\u7ecd\u3010<a href=\"https:\/\/huggingface.co\/docs\/trl\/main\/en\/grpo_trainer\">GRPO \u57f9\u8bad\u5e08 &#8212; GRPO Trainer<\/a>\u3011\u3002<\/p>\n\n\n\n<p>GRPO\u662f\u4e00\u79cd\u5728\u7ebf\u5b66\u4e60\u7b97\u6cd5\uff08online learning algorithm\uff09\uff0c\u8fd9\u610f\u5473\u7740\u5b83<strong>\u901a\u8fc7\u4f7f\u7528\u8bad\u7ec3\u6a21\u578b\u672c\u8eab\u5728\u8bad\u7ec3\u671f\u95f4\u751f\u6210\u7684\u6570\u636e\u8fdb\u884c\u8fed\u4ee3\u6539\u8fdb<\/strong>\u3002GRPO\u76ee\u6807\u80cc\u540e\u7684\u76f4\u89c9\u662f\u6700\u5927\u9650\u5ea6\u5730\u5229\u7528\u751f\u6210\u7684\u5b8c\u6210\uff0c\u540c\u65f6\u786e\u4fdd\u6a21\u578b\u59cb\u7ec8\u63a5\u8fd1\u53c2\u8003\u7b56\u7565\u3002\u8981\u4e86\u89e3GRPO\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u53ef\u4ee5\u5206\u4e3a\u56db\u4e2a\u4e3b\u8981\u6b65\u9aa4\uff1a<strong>\u751f\u6210\u8865\u5168<\/strong>\u3001<strong>\u8ba1\u7b97\u4f18\u52bf<\/strong>\u3001<strong>\u4f30\u8ba1 KL \u6563\u5ea6<\/strong>\u548c<strong>\u8ba1\u7b97\u635f\u5931<\/strong>\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-1024x541.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"541\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-1024x541.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2490\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n\n\n\n<p>\u5728\u6bcf\u4e2a\u8bad\u7ec3\u6b65\u9aa4\u4e2d\uff0c\u90fd\u4f1a\u5bf9\u4e00\u6279\u63d0\u793a\u8fdb\u884c\u91c7\u6837\uff0c\u5e76\u4e3a\u6bcf\u4e2a\u63d0\u793a\u751f\u6210\u4e00\u7ec4G\u8865\u5168(denoted as\u00a0<em>o<sub>i<\/sub><\/em>\u200b)\u3002<\/p>\n\n\n\n<p>\u5bf9\u4e8e\u6bcf\u4e2aG\u5e8f\u5217\uff0c\u4f7f\u7528\u5956\u52b1\u6a21\u578b\u8ba1\u7b97\u5956\u52b1\u3002\u4e3a\u4e86\u4e0e\u5956\u52b1\u6a21\u578b\u7684\u6bd4\u8f83\u6027\u8d28\u4fdd\u6301\u4e00\u81f4\uff08\u901a\u5e38\u5728\u540c\u4e00\u95ee\u9898\u7684\u8f93\u51fa\u6bd4\u8f83\u6570\u636e\u96c6\u4e0a\u8fdb\u884c\u8bad\u7ec3\uff09\uff0c\u8ba1\u7b97\u4f18\u52bf\u4ee5\u53cd\u6620\u8fd9\u4e9b\u76f8\u5bf9\u6bd4\u8f83\u3002\u5b83\u6309\u5982\u4e0b\u65b9\u5f0f\u89c4\u8303\u5316\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-1.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"328\" height=\"118\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-1.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2493\"  sizes=\"auto, (max-width: 328px) 100vw, 328px\" \/><\/div><\/figure>\n<\/div>\n\n\n<p>DeepSeek\u56e2\u961f\u5c06\u8fd9\u79cd<strong>\u7ec4\u76f8\u5bf9\u7b56\u7565\u4f18\u5316 \uff08GRPO\uff09<\/strong>\u3002<\/p>\n\n\n\n<p>KL \u6563\u5ea6\u662f\u4f7f\u7528\u00a0<a href=\"http:\/\/joschu.net\/blog\/kl-approx.html\">Schulman \u7b49\u4eba \uff082020\uff09<\/a>\u00a0\u5f15\u5165\u7684\u8fd1\u4f3c\u5668\uff08approximator\uff09\u4f30\u8ba1\u7684\u3002\u8fd1\u4f3c\u5668\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-2.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"815\" height=\"115\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-2.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2495\"  sizes=\"auto, (max-width: 815px) 100vw, 815px\" \/><\/div><\/figure>\n<\/div>\n\n\n<p>\u76ee\u6807\u662f\u6700\u5927\u9650\u5ea6\u5730\u53d1\u6325\u4f18\u52bf\uff0c\u540c\u65f6\u786e\u4fdd\u6a21\u578b\u59cb\u7ec8\u63a5\u8fd1\u53c2\u8003\u7b56\u7565\u3002\u56e0\u6b64\uff0c\u635f\u5931\u5b9a\u4e49\u5982\u4e0b\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-3-1024x135.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"135\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-3-1024x135.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2496\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n<\/div>\n\n\n<p>\u5176\u4e2d\uff0c\u88ab\u51cf\u7684\u4e00\u9879\u4ee3\u8868\u7f29\u653e\u4f18\u52bf\uff0c\u540e\u4e00\u9879\u901a\u8fc7 KL \u80cc\u79bb\u60e9\u7f5a\u4e0e\u53c2\u8003\u653f\u7b56\u7684\u504f\u5dee\u3002<\/p>\n\n\n\n<p>\u5728\u539f\u59cb\u8bba\u6587\u4e2d\uff0c\u6b64\u516c\u5f0f\u88ab\u63a8\u5e7f\u4e3a\u901a\u8fc7\u5229\u7528<strong>\u88c1\u526a\u4ee3\u7406\u76ee\u6807<\/strong>\u6765\u89e3\u91ca\u6bcf\u4e00\u4ee3\u4e4b\u540e\u7684\u591a\u6b21\u66f4\u65b0\uff1a<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-4-1024x70.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"70\" data-original=\"https:\/\/tobykskgd.life\/wp-content\/uploads\/2025\/02\/image-4-1024x70.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\" class=\"wp-image-2498\"  sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/div><\/figure>\n<\/div>\n\n\n<p>\u5176\u4e2d\u00a0clip(\u22c5,1\u2212\u03f5,1+\u03f5)\u901a\u8fc7\u5c06\u7b56\u7565\u6bd4\u7387\u9650\u5236\u57281+\u03f5\u548c1\u2212\u03f5\u4e4b\u95f4\uff0c\u786e\u4fdd\u66f4\u65b0\u4e0d\u4f1a\u8fc7\u5ea6\u504f\u79bb\u5f15\u7528\u7b56\u7565\u3002\u4e0d\u8fc7\uff0c\u5728 TRL \u4e2d\uff0c\u5c31\u50cf\u5728\u539f\u59cb\u8bba\u6587\u4e2d\u4e00\u6837\uff0c\u6bcf\u4e00\u4ee3\u53ea\u8fdb\u884c\u4e00\u6b21\u66f4\u65b0\uff0c\u56e0\u6b64\u53ef\u4ee5\u7b80\u5316\u5bf9\u7b2c\u4e00\u79cd\u5f62\u5f0f\u7684\u635f\u5931\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u65b9\u4fbf\u540e\u4eba\u4f7f\u7528GRPO\u8fdb\u884c\u5f00\u53d1\uff0cDeepSeek\u56e2\u961f\u5f00\u6e90\u4e86GRPO\u65b9\u6cd5\uff0c\u5e76\u4e3a\u6b64\u5f00\u53d1\u4e86\u540d\u4e3a<code>GRPOTrainer<\/code>\u7684\u65b9\u6cd5\uff08\u56ca\u62ec\u4e8e<code>trl<\/code>\u5305\u4e2d\uff09\uff0c\u76ee\u524dGRPO Trainer\u4ecd\u5728\u79ef\u6781\u5f00\u53d1\u5f53\u4e2d\u3002\u5176\u5bfc\u5165\u65b9\u6cd5\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from trl import GRPOTrainer<\/code><\/pre>\n\n\n\n<p>GRPO Trainer\u4f1a\u8bb0\u5f55\u4ee5\u4e0b\u6307\u6807\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><code>completion_length<\/code>\uff1a\u5e73\u5747\u5b8c\u6210\u65f6\u957f\u3002<\/li>\n\n\n\n<li><code>reward\/{reward_func_name}<\/code>\uff1a\u6bcf\u4e2a reward \u51fd\u6570\u8ba1\u7b97\u7684\u5956\u52b1\u3002<\/li>\n\n\n\n<li><code>reward<\/code>\uff1a\u5e73\u5747\u5956\u52b1\u3002<\/li>\n\n\n\n<li><code>reward_std<\/code>\u00a0\uff1a\u5956\u52b1\u7ec4\u5185\u7684\u5e73\u5747\u6807\u51c6\u5dee\u3002<\/li>\n\n\n\n<li><code>kl<\/code>\u00a0\uff1a \u6839\u636e\u5b8c\u6210\u6b21\u6570\u8ba1\u7b97\u7684\u6a21\u578b\u548c\u53c2\u8003\u6a21\u578b\u4e4b\u95f4\u7684\u5e73\u5747 KL \u6563\u5ea6\u3002<\/li>\n<\/ul>\n\n\n\n<p><code>GRPOTrainer<\/code>\u652f\u6301\u4f7f\u7528<strong>\u81ea\u5b9a\u4e49\u5956\u52b1\u51fd\u6570<\/strong>\uff0c\u800c\u4e0d\u662f\u5bc6\u96c6\u7684\u5956\u52b1\u6a21\u578b\u3002\u4e3a\u786e\u4fdd\u517c\u5bb9\u6027\uff0c\u5956\u52b1\u51fd\u6570\u5fc5\u987b\u6ee1\u8db3\u4ee5\u4e0b\u8981\u6c42\uff1a<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>\u8f93\u5165\u53c2\u6570\n<ul class=\"wp-block-list\">\n<li>\u8be5\u51fd\u6570\u5fc5\u987b\u63a5\u53d7\u4ee5\u4e0b\u5185\u5bb9\u4f5c\u4e3a\u5173\u952e\u5b57\u53c2\u6570\uff1a\n<ul class=\"wp-block-list\">\n<li><code>prompts<\/code>\uff08\u5305\u542b\u63d0\u793a\uff09<\/li>\n\n\n\n<li><code>completions<\/code>\uff08\u5305\u542b\u751f\u6210\u7684 completions\uff09<\/li>\n\n\n\n<li>\u6570\u636e\u96c6\u53ef\u80fd\u5177\u6709\u7684\u6240\u6709\u5217\u540d\u79f0\uff08\u4f46<code>prompt<\/code>\uff09\u3002\u4f8b\u5982\uff0c\u5982\u679c\u6570\u636e\u96c6\u5305\u542b\u540d\u4e3a\u00a0<code>ground_truth<\/code>\u00a0\u7684\u5217\uff0c\u5219\u5c06\u4f7f\u7528\u00a0<code>ground_truth<\/code>\u00a0\u4f5c\u4e3a\u5173\u952e\u5b57\u53c2\u6570\u6765\u8c03\u7528\u8be5\u51fd\u6570\u3002<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li>\u7b26\u5408\u6b64\u8981\u6c42\u7684\u6700\u7b80\u5355\u65b9\u6cd5\u662f\u5728\u51fd\u6570\u7b7e\u540d\u4e2d\u4f7f\u7528\u00a0<code>**kwargs<\/code>\u3002<\/li>\n\n\n\n<li>\u6839\u636e\u6570\u636e\u96c6\u683c\u5f0f\uff0c\u8f93\u5165\u4f1a\u6709\u6240\u4e0d\u540c\uff1a\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e<a href=\"https:\/\/huggingface.co\/docs\/trl\/main\/en\/dataset_formats#standard\">\u6807\u51c6\u683c\u5f0f<\/a>\uff0c<code>prompts<\/code>\u00a0\u548c\u00a0<code>completions<\/code>\u00a0\u5c06\u662f\u5b57\u7b26\u4e32\u5217\u8868\u3002<\/li>\n\n\n\n<li>\u5bf9\u4e8e<a href=\"https:\/\/huggingface.co\/docs\/trl\/main\/en\/dataset_formats#conversational\">\u5bf9\u8bdd\u683c\u5f0f<\/a>\uff0c<code>prompts<\/code>\u00a0\u548c\u00a0<code>completions<\/code>\u00a0\u5c06\u662f\u6d88\u606f\u8bcd\u5178\u7684\u5217\u8868\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>\u8fd4\u56de\u503c<\/strong>\uff1a\u8be5\u51fd\u6570\u5fc5\u987b\u8fd4\u56de\u6d6e\u70b9\u6570\u5217\u8868\u3002\u6bcf\u4e2a\u6d6e\u70b9\u6570\u4ee3\u8868\u4e0e\u5355\u4e2a\u5b8c\u6210\u5bf9\u5e94\u7684\u5956\u52b1\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u5b98\u65b9\u7ed9\u51fa\u4e86\u4e00\u4e0b\u51e0\u4e2a\u4f7f\u7528\u793a\u4f8b\uff1a<\/p>\n\n\n\n<p>\u793a\u4f8b 1\uff1a\u5956\u52b1\u8f83\u957f\u7684completions<\/p>\n\n\n\n<p>\u4ee5\u4e0b\u662f\u5956\u52b1\u8f83\u957f\u5b8c\u6210\u5ea6\u7684\u6807\u51c6\u683c\u5f0f\u7684\u5956\u52b1\u51fd\u6570\u793a\u4f8b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>def reward_func(completions, **kwargs):\n    \"\"\"\u5956\u52b1\u529f\u80fd\uff1a\u8f93\u51fa\u7684completions\u8d8a\u957f\uff0c\u5f97\u5206\u8d8a\u9ad8\u3002\"\"\"\n    return &#91;float(len(completion)) for completion in completions]<\/code><\/pre>\n\n\n\n<p>\u53ef\u4ee5\u6309\u5982\u4e0b\u65b9\u5f0f\u5bf9\u5176\u8fdb\u884c\u6d4b\u8bd5\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>prompts = &#91;\"The sky is\", \"The sun is\"]\ncompletions = &#91;\" blue.\", \" in the sky.\"]\nprint(reward_func(prompts=prompts, completions=completions))<\/code><\/pre>\n\n\n\n<p>\u793a\u4f8b 2\uff1a\u5177\u6709\u7279\u5b9a\u683c\u5f0f\u7684\u5956\u52b1\u5b8c\u6210<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a\u5956\u52b1\u51fd\u6570\u793a\u4f8b\uff0c\u8be5\u51fd\u6570\u68c0\u67e5\u5b8c\u6210\u662f\u5426\u5177\u6709\u7279\u5b9a\u683c\u5f0f\u3002\u6b64\u793a\u4f8b\u7684\u7075\u611f\u6765\u81ea\u8bba\u6587 DeepSeek-R1 \u4e2d\u4f7f\u7528\u7684\u683c\u5f0f\u5956\u52b1\u51fd\u6570\u3002\u5b83\u4e13\u4e3a\u5bf9\u8bdd\u683c\u5f0f\u800c\u8bbe\u8ba1\uff0c\u5176\u4e2d\u63d0\u793a\u548c\u5b8c\u6210\u7531\u7ed3\u6784\u5316\u6d88\u606f\u7ec4\u6210\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import re\n\ndef format_reward_func(completions, **kwargs):\n    \"\"\"\u5956\u52b1\u51fd\u6570\uff1a\u68c0\u67e5\u5b8c\u6210\u662f\u5426\u5177\u6709\u7279\u5b9a\u683c\u5f0f\"\"\"\n    pattern = r\"^&lt;think>.*?&lt;\/think>&lt;answer>.*?&lt;\/answer>$\"\n    completion_contents = &#91;completion&#91;0]&#91;\"content\"] for completion in completions]\n    matches = &#91;re.match(pattern, content) for content in completion_contents]\n    return &#91;1.0 if match else 0.0 for match in matches]<\/code><\/pre>\n\n\n\n<p>\u53ef\u4ee5\u6309\u5982\u4e0b\u65b9\u5f0f\u6d4b\u8bd5\u6b64\u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>prompts = &#91;\n    &#91;{\"role\": \"assistant\", \"content\": \"What is the result of (1 + 2) * 4?\"}],\n    &#91;{\"role\": \"assistant\", \"content\": \"What is the result of (3 + 1) * 2?\"}],\n]\ncompletions = &#91;\n    &#91;{\"role\": \"assistant\", \"content\": \"&lt;think>The sum of 1 and 2 is 3, which we multiply by 4 to get 12.&lt;\/think>&lt;answer>(1 + 2) * 4 = 12&lt;\/answer>\"}],\n    &#91;{\"role\": \"assistant\", \"content\": \"The sum of 3 and 1 is 4, which we multiply by 2 to get 8. So (3 + 1) * 2 = 8.\"}],\n]\nformat_reward_func(prompts=prompts, completions=completions)<\/code><\/pre>\n\n\n\n<p>\u793a\u4f8b 3\uff1a\u57fa\u4e8e\u5f15\u7528\u7684\u5956\u52b1\u5b8c\u6210<\/p>\n\n\n\n<p>\u4e0b\u9762\u662f\u4e00\u4e2a reward \u51fd\u6570\u7684\u793a\u4f8b\uff0c\u7528\u4e8e\u68c0\u67e5 the \u662f\u5426\u6b63\u786e\u3002\u8fd9\u4e2a\u4f8b\u5b50\u7684\u7075\u611f\u6765\u81ea\u8bba\u6587 DeepSeek-R1 \u4e2d\u4f7f\u7528\u7684\u51c6\u786e\u7387\u5956\u52b1\u51fd\u6570\u3002\u6b64\u793a\u4f8b\u4e13\u4e3a\u6807\u51c6\u683c\u5f0f\u8bbe\u8ba1\uff0c\u5176\u4e2d\u6570\u636e\u96c6\u5305\u542b\u540d\u4e3a ground_truth \u7684\u5217\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>import re\n\ndef reward_func(completions, ground_truth, **kwargs):\n    # Regular expression to capture content inside \\boxed{}\n    matches = &#91;re.search(r\"\\\\boxed\\{(.*?)\\}\", completion) for completion in completions]\n    contents = &#91;match.group(1) if match else \"\" for match in matches]\n    # Reward 1 if the content is the same as the ground truth, 0 otherwise\n    return &#91;1.0 if c == gt else 0.0 for c, gt in zip(contents, ground_truth)]<\/code><\/pre>\n\n\n\n<p>\u53ef\u4ee5\u6309\u5982\u4e0b\u65b9\u5f0f\u6d4b\u8bd5\u6b64\u51fd\u6570\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>prompts = &#91;\"Problem: Solve the equation $2x + 3 = 7$. Solution:\", \"Problem: Solve the equation $3x - 5 = 10$.\"]\ncompletions = &#91;r\" The solution is \\boxed{2}.\", r\" The solution is \\boxed{6}.\"]\nground_truth = &#91;\"2\", \"5\"]\nreward_func(prompts=prompts, completions=completions, ground_truth=ground_truth)<\/code><\/pre>\n\n\n\n<p>\u5c06 reward \u51fd\u6570\u4f20\u9012\u7ed9 trainer<\/p>\n\n\n\n<p>\u8981\u4f7f\u7528\u81ea\u5b9a\u4e49\u5956\u52b1\u51fd\u6570\uff0c\u8bf7\u5c06\u5176\u4f20\u9012\u7ed9\u00a0<code>GRPOTrainer<\/code>\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from trl import GRPOTrainer\n\ntrainer = GRPOTrainer(\n    reward_funcs=reward_func, # \u81ea\u5b9a\u4e49\u5956\u52b1\u51fd\u6570reward_func\n    ...,\n)<\/code><\/pre>\n\n\n\n<p>\u5982\u679c\u6709\u591a\u4e2a\u5956\u52b1\u51fd\u6570\uff0c\u5219\u53ef\u4ee5\u5c06\u5b83\u4eec\u4f5c\u4e3a\u5217\u8868\u4f20\u9012\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>from trl import GRPOTrainer\n\ntrainer = GRPOTrainer(\n    reward_funcs=&#91;reward_func1, reward_func2], # \u5c06\u5956\u52b1\u51fd\u6570\u5199\u4e3a\u5217\u8868\u5f62\u5f0f\n    ...,\n)<\/code><\/pre>\n\n\n\n<p>\u5956\u52b1\u5c06\u8ba1\u7b97\u4e3a\u6bcf\u4e2a\u51fd\u6570\u7684\u5956\u52b1\u4e4b\u548c\u3002\u8bf7\u6ce8\u610f\uff0c<a href=\"https:\/\/huggingface.co\/docs\/trl\/main\/en\/grpo_trainer#trl.GRPOTrainer\">GRPOTrainer<\/a>\u00a0\u652f\u6301\u591a\u79cd\u4e0d\u540c\u7c7b\u578b\u7684\u5956\u52b1\u51fd\u6570\u3002\u6709\u5173\u66f4\u591a\u8be6\u7ec6\u4fe1\u606f\uff0c\u8bf7\u53c2\u9605 <a href=\"https:\/\/huggingface.co\/docs\/trl\/main\/en\/grpo_trainer#customization\">parameters documentation<\/a> \u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u7ae0\u5c06\u63a5\u7740\u524d\u4e00\u7bc7\u5173\u4e8eDeepSeek-R1\u6765\u66f4\u8fd1\u4e00\u6b65\u8bf4\u660e\u5176\u4e2d\u7684\u5173\u952e\u7b97\u6cd5GRPO\u3002\u672c\u6587\u5c06\u5927\u91cf\u53c2\u8003\uff08CV\u5927\u6cd5\uff09D [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[32,3,7],"class_list":["post-2489","post","type-post","status-publish","format-standard","hentry","category-xxbj","tag-share","tag-xxbj","tag-jjxx"],"_links":{"self":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/2489","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/comments?post=2489"}],"version-history":[{"count":17,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/2489\/revisions"}],"predecessor-version":[{"id":2512,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/posts\/2489\/revisions\/2512"}],"wp:attachment":[{"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/media?parent=2489"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/categories?post=2489"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tobykskgd.life\/index.php\/wp-json\/wp\/v2\/tags?post=2489"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}