{"id":99618,"date":"2026-09-02T22:49:29","date_gmt":"2026-09-02T14:49:29","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/99618.html"},"modified":"2026-09-02T22:49:29","modified_gmt":"2026-09-02T14:49:29","slug":"experience-replay","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/99618.html","title":{"rendered":"Experience Replay"},"content":{"rendered":"<p id=\"main-toc\">\u76ee\u5f55<\/p>\n<p id=\"1.%20DQN%20and%20TD%20Learning-toc\" style=\"margin-left:0px\">1. DQN and TD Learning<\/p>\n<p id=\"2.%C2%A0Experience%20Replay-toc\" style=\"margin-left:0px\">2.\u00a0Experience Replay<\/p>\n<p id=\"2.1%20Benefits%20of%20Experience%20Replay-toc\" style=\"margin-left:40px\">2.1 Benefits of Experience Replay<\/p>\n<p id=\"3.%C2%A0Prioritized%20Experience%20Replay-toc\" style=\"margin-left:0px\">3.\u00a0Prioritized Experience Replay<\/p>\n<hr id=\"hr-toc\" \/>\n<h2 id=\"1.%20DQN%20and%20TD%20Learning\" style=\"background-color:transparent\"><span style=\"color:#0d0016\">1. DQN and TD Learning<\/span><\/h2>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"396\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144927-6a983777e1a9f.png\" width=\"820\" \/><\/p>\n<p><span style=\"color:#0d0016\">\u5f3a\u5316\u5b66\u4e60\u7684\u76ee\u6807\u5c31\u662f\u5b66\u4e60\u5230policy\u51fd\u6570\u00a0<img decoding=\"async\" alt=\"\\\\pi(a|s)\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a98377811075.png\" \/>\u00a0\u6216\u6700\u4f18\u52a8\u4f5c\u4ef7\u503c\u51fd\u6570\u00a0<img decoding=\"async\" alt=\"Q^{*}(s,a)\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a98377815ea2.png\" \/>\u00a0\u53bb\u63a7\u5236Agent&#xff0c;\u8ba9Agent\u57fa\u4e8e\u5f53\u524d\u7684\u72b6\u6001\u00a0<img decoding=\"async\" alt=\"S\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837781a960.png\" \/>\u00a0\u6765\u505a\u51fa\u76f8\u5e94\u7684\u52a8\u4f5c\u00a0<img decoding=\"async\" alt=\"A\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837781f070.png\" \/>\u00a0&#xff0c;\u4e89\u53d6\u5728\u672a\u6765\u5f97\u5230\u5c3d\u91cf\u591a\u7684\u5956\u52b1\u3002<\/span><\/p>\n<p><span style=\"color:#0d0016\">\u7531\u4e8e\u6211\u4eec\u5e76\u4e0d\u77e5\u9053\u00a0<img decoding=\"async\" alt=\"Q^{*}(s,a)\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a98377815ea2.png\" \/>\u00a0&#xff0c;\u56e0\u6b64\u4f7f\u7528\u795e\u7ecf\u7f51\u7edc\u00a0<img decoding=\"async\" alt=\"Q(s,a;w)\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a983778239dc.png\" \/>\u00a0\u6765\u8fd1\u4f3c\u00a0<img decoding=\"async\" alt=\"Q^{*}(s,a)\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a98377815ea2.png\" \/>\u3002<\/span><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"324\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a98377828485.png\" width=\"701\" \/><\/p>\n<p><span style=\"color:#0d0016\">\u76ee\u6807\u662f\u8ba9\u9884\u6d4b\u503c\u5c3d\u53ef\u80fd\u63a5\u8fd1\u00a0<img decoding=\"async\" alt=\"y_t\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a98377838425.png\" \/>&#xff0c;\u56e0\u6b64\u5bf9\u53c2\u6570\u00a0<img decoding=\"async\" alt=\"w\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837783cd64.png\" \/>\u00a0\u7684\u66f4\u65b0\u5982\u4e0b\u3002<\/span><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"240\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837784160b.png\" width=\"584\" \/><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"304\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837784ef21.png\" width=\"635\" \/><\/p>\n<p><span style=\"color:#0d0016\">\u5728\u4f7f\u7528\u8fc7transition <img decoding=\"async\" alt=\"(s_t,a_t,r_t,s_{t+1})\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837785e249.png\" \/>\u00a0\u540e&#xff0c;\u4f1a\u5c06transition <img decoding=\"async\" alt=\"(s_t,a_t,r_t,s_{t+1})\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837785e249.png\" \/>\u00a0\u4e22\u5f03&#xff0c;\u8fd9\u4f1a\u9020\u6210\u7ecf\u9a8c\u7684\u6d6a\u8d39\u3002<\/span><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"255\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a98377862e6a.png\" width=\"667\" \/><\/p>\n<p><span style=\"color:#0d0016\">\u6309\u7167\u987a\u5e8f\u4f7f\u7528\u6bcf\u4e00\u6761transition <img decoding=\"async\" alt=\"(s_t,a_t,r_t,s_{t+1})\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837785e249.png\" \/>\u00a0\u66f4\u65b0\u53c2\u6570\u00a0<img decoding=\"async\" alt=\"w\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837783cd64.png\" \/>&#xff0c;\u524d\u540etransition\u6709\u5f88\u5f3a\u7684\u5173\u8054,\u5b9e\u9a8c\u8bc1\u660e\u8fd9\u6837\u7684\u76f8\u5173\u6027\u662f\u6709\u5bb3\u7684&#xff0c;\u5982\u679c\u628a\u5e8f\u5217\u6253\u6563&#xff0c;\u6d88\u9664\u76f8\u5173\u6027&#xff0c;\u5219\u6709\u5229\u4e8e\u628aDQN\u8bad\u7ec3\u7684\u66f4\u597d\u3002<\/span><\/p>\n<h2 id=\"2.%C2%A0Experience%20Replay\" style=\"background-color:transparent\"><span style=\"color:#0d0016\">2.\u00a0Experience Replay<\/span><\/h2>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"371\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837787100d.png\" width=\"703\" \/><\/p>\n<p><span style=\"color:#0d0016\">\u628atransition\u5b58\u5230\u4e00\u4e2a\u5bb9\u91cf\u4e3an\u7684\u961f\u5217&#xff08;Replay\u00a0Buffer&#xff09;\u91cc\u3002\u5982\u679c\u961f\u5217\u5df2\u6ee1&#xff0c;\u5b58\u5165\u65b0\u7684transition\u5c31\u5f97\u628a\u65e9\u524d\u5b58\u7684\u7684\u90a3\u4e2a\u5220\u9664&#xff0c;\u7136\u540e\u518d\u5b58\u50a8\u65b0\u7684transition\u3002<\/span><\/p>\n<p><span style=\"color:#0d0016\">\u5176\u4e2dn\u662f\u8d85\u53c2\u6570&#xff0c;n\u901a\u5e38\u5f88\u5927&#xff0c;\u4f8b\u5982\u53d6\u00a0<img decoding=\"async\" alt=\"10^5\\\\sim 10^6\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a983778822e2.png\" \/>\u00a0\u3002<\/span><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"356\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a98377887131.png\" width=\"610\" \/><\/p>\n<p><span style=\"color:#0d0016\">\u4eceReplay\u00a0Buffer\u4e2d\u968f\u673a\u62bd\u53d6\u4e00\u4e2atransition\u6765\u66f4\u65b0\u53c2\u6570\u00a0<img decoding=\"async\" alt=\"w\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837783cd64.png\" \/>\u00a0&#xff0c;\u5b9e\u8df5\u4e2d\u901a\u5e38\u4f7f\u7528minbatch SGD,\u6bcf\u6b21\u968f\u673a\u62bd\u53d6\u591a\u4e2atransition&#xff0c;\u7b97\u591a\u4e2a\u68af\u5ea6&#xff0c;\u7528\u68af\u5ea6\u7684\u5e73\u5747\u6765\u66f4\u65b0\u53c2\u6570 <img decoding=\"async\" alt=\"w\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837783cd64.png\" \/>\u3002<\/span><\/p>\n<h3 id=\"2.1%20Benefits%20of%20Experience%20Replay\"><span style=\"color:#0d0016\">2.1 Benefits of Experience Replay<\/span><\/h3>\n<li><span style=\"color:#0d0016\">\u6253\u7834transition\u5e8f\u5217\u7684\u76f8\u5173\u6027<\/span><\/li>\n<li><span style=\"color:#0d0016\">\u91cd\u65b0\u4f7f\u7528\u8fc7\u53bb\u7684\u7ecf\u9a8c\u591a\u6b21<\/span><\/li>\n<h2 id=\"3.%C2%A0Prioritized%20Experience%20Replay\"><span style=\"color:#0d0016\">3.\u00a0Prioritized Experience Replay<\/span><\/h2>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"420\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a98377897e9c.png\" width=\"640\" \/><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"28\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a983778ab6a3.png\" width=\"681\" \/><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"357\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a983778b422c.png\" width=\"630\" \/><\/p>\n<p><span style=\"color:#0d0016\">Prioritized Experience Replay\u4e0eExperience Replay\u7684\u533a\u522b\u5c31\u662f\u7528\u975e\u5747\u5300\u62bd\u6837\u4ee3\u66ff\u5747\u5300\u62bd\u6837\u3002<\/span><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"34\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a983778c5628.png\" width=\"546\" \/><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"351\" src=\"2026-09-021bt2p4r2y0w.png\" width=\"652\" \/><\/p>\n<p><span style=\"color:#0d0016\">\u5982\u679c\u505a\u5747\u5300\u62bd\u6837&#xff0c;\u90a3\u4e48\u6240\u6709\u7684transition\u90fd\u7528\u76f8\u540c\u7684\u5b66\u4e60\u7387&#xff1b;\u5982\u679c\u505a\u975e\u5747\u5300\u62bd\u6837&#xff0c;\u6839\u636e\u62bd\u6837\u6982\u7387\u8c03\u6574\u5b66\u4e60\u7387&#xff0c; \u5373\u5982\u679c\u4e00\u6761transition\u6709\u8f83\u5927\u7684\u62bd\u6837\u6982\u7387&#xff0c;\u5e94\u8be5\u5c06\u5b83\u7684\u5b66\u4e60\u7387\u8bbe\u7f6e\u7684\u6bd4\u8f83\u5c0f\u3002<\/span><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"337\" src=\"2026-09-02vahgwvvssu1.png\" width=\"655\" \/><\/p>\n<p class=\"img-center\"><img loading=\"lazy\" decoding=\"async\" alt=\"\" height=\"403\" src=\"2026-09-02gqlrf4lr520.png\" width=\"797\" \/><\/p>\n<ul>\n<li><span style=\"color:#0d0016\">\u6bcf\u4e00\u6761transition <img decoding=\"async\" alt=\"(s_t,a_t,r_t,s_{t+1})\" class=\"mathcode\" src=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/09\/20260902144928-6a9837785e249.png\" \/>\u00a0\u90fd\u88ab\u6807\u4e0a\u00a0<img decoding=\"async\" alt=\"\\\\delta_t\" class=\"mathcode\" src=\"2026-09-021tr10leem0w.png\" \/>\u00a0&#xff08;TD Error&#xff09;\u3002<\/span><\/li>\n<li><span style=\"color:#0d0016\">\u5982\u679c\u4e00\u6761transition\u662f\u521a\u88ab\u6536\u96c6\u5230\u7684&#xff0c;\u8fd8\u6ca1\u88ab\u7528\u6765\u8bad\u7ec3DQN&#xff0c;\u6240\u4ee5\u5e76\u4e0d\u77e5\u9053\u5b83\u7684\u00a0<img decoding=\"async\" alt=\"\\\\delta_t\" class=\"mathcode\" src=\"2026-09-021tr10leem0w.png\" \/>\u00a0\u00a0&#xff0c;\u76f4\u63a5\u5c06\u5b83\u7684\u5b66\u4e60\u7387\u8bbe\u7f6e\u4e3a\u6700\u5927\u503c&#xff0c;\u7ed9\u4e88\u5176\u6700\u9ad8\u7684\u6743\u91cd\u3002<\/span><\/li>\n<li><span style=\"color:#0d0016\">\u5728\u8bad\u7ec3DQN\u65f6&#xff0c;\u4e5f\u8981\u5bf9\u00a0<img decoding=\"async\" alt=\"\\\\delta_t\" class=\"mathcode\" src=\"2026-09-021tr10leem0w.png\" \/>\u00a0\u66f4\u65b0&#xff0c;\u6bcf\u6b21\u4f7f\u7528transition\u65f6\u90fd\u8981\u8ba1\u7b97\u00a0<img decoding=\"async\" alt=\"\\\\delta_t\" class=\"mathcode\" src=\"2026-09-021tr10leem0w.png\" \/>\u00a0\u00a0&#xff0c;\u8fd9\u6837transition\u5c31\u6709\u4e86\u65b0\u7684\u6743\u91cd.<\/span><\/li>\n<\/ul>\n<p><span style=\"color:#0d0016\">\u603b\u800c\u8a00\u4e4b&#xff0c;<img decoding=\"async\" alt=\"\\\\delta_t\" class=\"mathcode\" src=\"2026-09-021tr10leem0w.png\" \/>\u00a0\u8d8a\u5927&#xff0c;\u90a3\u4e48\u62bd\u6837\u6982\u7387\u8d8a\u5927&#xff0c;\u8fdb\u800c\u5b66\u4e60\u7387\u5c0f&#xff0c;\u53ef\u62b5\u6d88\u5927\u62bd\u6837\u6982\u7387\u9020\u6210\u7684\u504f\u5dee\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u5f55<br \/>\n1. DQN and TD Learning<br \/>\n2.\u00a0Experience Replay<br \/>\n2.1 Benefits of Experience Replay<br \/>\n3.\u00a0Prioritized Experience Replay 1. 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