{"id":7813,"date":"2022-11-11T19:47:00","date_gmt":"2022-11-11T11:47:00","guid":{"rendered":"http:\/\/139.9.1.231\/?p=7813"},"modified":"2022-11-07T20:04:27","modified_gmt":"2022-11-07T12:04:27","slug":"improved-ddpm","status":"publish","type":"post","link":"http:\/\/139.9.1.231\/index.php\/2022\/11\/11\/improved-ddpm\/","title":{"rendered":"Improved DDPM"},"content":{"rendered":"\n<p>\u4f5c\u8005\uff1aAlex Nichol*<em>,<\/em>&nbsp;Prafulla Dhariwal*<\/p>\n\n\n\n<p>\u5173\u952e\u8bcd\uff1adiffusion model, fast sampling<\/p>\n\n\n\n<p>\u8bba\u6587\uff1a<a rel=\"noreferrer noopener\" href=\"https:\/\/arxiv.org\/abs\/2102.09672\" target=\"_blank\">Improved Denoising Diffusion Probabilistic Models<\/a><\/p>\n\n\n\n<p>\u77e5\u4e4e\uff1a<a href=\"https:\/\/zhuanlan.zhihu.com\/p\/557971459\">https:\/\/zhuanlan.zhihu.com\/p\/557971459<\/a><\/p>\n\n\n\n<h2>\u6458\u8981<\/h2>\n\n\n\n<blockquote class=\"wp-block-quote\"><p>\u53bb\u566a\u6269\u6563\u6982\u7387\u6a21\u578b\uff08DDPM\uff09\u662f\u4e00\u7c7b\u751f\u6210\u6a21\u578b\uff0c\u6700\u8fd1\u5df2\u88ab\u8bc1\u660e\u80fd\u4ea7\u751f\u826f\u597d\u7684\u6837\u672c\u3002\u6211\u4eec\u8868\u660e\uff0c\u901a\u8fc7\u4e00\u4e9b\u7b80\u5355\u7684\u4fee\u6539\uff0cDDPM\u4e5f\u53ef\u4ee5\u5728\u4fdd\u6301\u9ad8\u6837\u672c\u8d28\u91cf\u7684\u540c\u65f6\u5b9e\u73b0\u5177\u6709\u7ade\u4e89\u529b\u7684\u5bf9\u6570\u4f3c\u7136\u3002\u6b64\u5916\uff0c\u6211\u4eec\u53d1\u73b0\uff0c\u53cd\u5411\u6269\u6563\u8fc7\u7a0b\u7684\u5b66\u4e60\u65b9\u5dee\u5141\u8bb8\u4ee5\u6570\u91cf\u7ea7\u66f4\u5c11\u7684\u6b63\u5411\u4f20\u9012\u8fdb\u884c\u91c7\u6837\uff0c\u6837\u672c\u8d28\u91cf\u5dee\u5f02\u53ef\u4ee5\u5ffd\u7565\uff0c\u8fd9\u5bf9\u4e8e\u8fd9\u4e9b\u6a21\u578b\u7684\u5b9e\u9645\u90e8\u7f72\u975e\u5e38\u91cd\u8981\u3002\u6211\u4eec\u8fd8\u4f7f\u7528\u7cbe\u5ea6\u548c\u91cd\u65b0\u8c03\u7528\u6765\u6bd4\u8f83DDPM\u548cGANs\u8986\u76d6\u76ee\u6807\u5206\u5e03\u7684\u7a0b\u5ea6\u3002\u6700\u540e\uff0c\u6211\u4eec\u8868\u660e\uff0c\u8fd9\u4e9b\u6a21\u578b\u7684\u6837\u672c\u8d28\u91cf\u548c\u4f3c\u7136\u6027\u968f\u6a21\u578b\u5bb9\u91cf\u548c\u8bad\u7ec3\u8ba1\u7b97\u800c\u5e73\u6ed1\u6269\u5c55\uff0c\u4f7f\u5176\u6613\u4e8e\u6269\u5c55\u3002<\/p><\/blockquote>\n\n\n\n<h3>\u8d21\u732e<\/h3>\n\n\n\n<ul><li>\u566a\u58f0\u673a\u5236\u66f4\u65b0\uff0c\u4f7f\u7528cosine<\/li><li>\u5f15\u5165\u4e86\u65b9\u5dee\u9879\u7684\u5b66\u4e60<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" width=\"1024\" height=\"315\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/11\/image-65-1024x315.png\" alt=\"\" class=\"wp-image-10185\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/11\/image-65-1024x315.png 1024w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/11\/image-65-300x92.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/11\/image-65-768x236.png 768w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/11\/image-65.png 1106w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" width=\"846\" height=\"776\" src=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/11\/image-66.png\" alt=\"\" class=\"wp-image-10186\" srcset=\"http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/11\/image-66.png 846w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/11\/image-66-300x275.png 300w, http:\/\/139.9.1.231\/wp-content\/uploads\/2022\/11\/image-66-768x704.png 768w\" sizes=\"(max-width: 846px) 100vw, 846px\" \/><\/figure>\n\n\n\n<h3>\u65b9\u5dee\u5b66\u4e60<\/h3>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic1.zhimg.com\/v2-b64d1292b6563cd676134f600bb45ad0_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic2.zhimg.com\/v2-329473ee7dd24066074c62d6abf9c145_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic2.zhimg.com\/v2-7e323ec48b7a9313fa45b84e5882fbf9_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic1.zhimg.com\/v2-fb011b1c85242ce6caab1d4fd88fdaf4_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic4.zhimg.com\/v2-57f75bf1619bcb9543bbb0e1e981717f_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<figure class=\"wp-block-image\"><img src=\"https:\/\/pic2.zhimg.com\/v2-282ebf9408072ba3b172ec46b82083f5_r.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<h3>faster sampling<\/h3>\n\n\n\n<p>DDPM\u662f\u4e00\u6b65\u4e00\u6b65\u7684\u5f80\u4e0a\u91c7\u6837\uff0c\u8fd9\u91cc\u6709\u4e00\u4e2astrided sampling schedule\uff0c\u4e5f\u5c31\u662f\u6bcf\u6b21\u7f51\u4e0a\u91c7\u6837100\u6b65\uff0c\u53c2\u6570\u90fd\u6ca1\u53d8\u5316\u3002<\/p>\n\n\n\n<h2>Paper List<\/h2>\n\n\n\n<ol><li>(DDPM) Denoising Diffusion Probabilistic Models. NIPS 20. (Diffusion and deep-learning-based \u56fe\u50cf\u751f\u6210\u5f00\u5c71\u4e4b\u4f5c)<\/li><li>More Control for Free! Image Synthesis with Semantic Diffusion Guidance. arXiv 21. (\u5bf9DDIM\u8fdb\u884c\u4e86\u63a8\u5e7f\uff0c\u5f15\u5165\u4e86\u4e00\u822c\u5f62\u5f0f\u7684\u5224\u522b\u5668\u5f15\u5bfc)<\/li><li>Denoising Diffusion Implicit Models. ICLR 21. (\u63d0\u51fa\u4e86\u4e00\u79cd\u65b0\u7684sampling\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u901a\u8fc7\u6539\u53d8eta\u6765skip\u4e00\u4e9bstep\uff0c\u8fdb\u800c\u8fbe\u5230\u52a0\u901fsampling\u7684\u76ee\u7684)<\/li><li>Improved denoising diffusion probabilistic models. ICML 21.<\/li><li>Classifier-Free Diffusion Guidance. NIPSW 21. \uff08\u5f15\u5165\u4e86\u7b49\u4ef7\u7ed3\u6784\u66ff\u4ee3\u4e86\u5206\u7c7b\u5668\u5f15\u5bfc\uff09<\/li><li>GLIDE: Towards Photorealistic Image Generation and Editing with Text-Guided Diffusion Models. ICML 22.<\/li><li>Hierarchical Text-Conditional Image Generation with CLIP Latents. NIPS 22 \u5728\u6295. (DALL-E 2)<\/li><li>Photorealistic Text-to-Image Diffusion Models with Deep Language Understanding. NIPS 22 \u5728\u6295. (Imagen, SOTA)<\/li><li>High-Resolution Image Synthesis with Latent Diffusion Models. CVPR 22. (\u9690\u7a7a\u95f4LDM)<\/li><\/ol>\n","protected":false},"excerpt":{"rendered":"<p>\u4f5c\u8005\uff1aAlex Nichol*,&nbsp;Prafulla Dhariwal* \u5173\u952e\u8bcd\uff1adiffusion  &hellip; <a href=\"http:\/\/139.9.1.231\/index.php\/2022\/11\/11\/improved-ddpm\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">Improved DDPM<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[29],"tags":[],"_links":{"self":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/7813"}],"collection":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/comments?post=7813"}],"version-history":[{"count":9,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/7813\/revisions"}],"predecessor-version":[{"id":10196,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/posts\/7813\/revisions\/10196"}],"wp:attachment":[{"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/media?parent=7813"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/categories?post=7813"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/139.9.1.231\/index.php\/wp-json\/wp\/v2\/tags?post=7813"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}