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\u81ea\u7531\u80fd\u539f\u7406 Free energy principle\u662f\u4e00\u4e2a\u6b63\u5f0f\u7684\u9648\u8ff0\uff0c\u5b83\u89e3\u91ca\u4e86\u751f\u7269\u7cfb\u7edf\u548c\u975e\u751f\u7269\u7cfb\u7edf\u5982\u4f55\u901a\u8fc7\u5c06\u81ea\u5df1\u9650\u5236\u5728\u6709\u9650\u7684\u51e0\u4e2a\u72b6\u6001\u800c\u4fdd\u6301\u5728\u975e\u5e73\u8861\u7a33\u6001\u3002\u5b83\u8868\u660e\u7cfb\u7edf\u6700\u5c0f\u5316\u4e86\u5185\u90e8\u72b6\u6001\u7684\u81ea\u7531\u80fd\u51fd\u6570\uff0c\u800c\u5185\u90e8\u72b6\u6001\u5305\u542b\u4e86\u5bf9\u73af\u5883\u4e2d\u9690\u85cf\u72b6\u6001\u7684\u4fe1\u4efb\u3002\u81ea\u7531\u80fd\u7684\u5185\u9690\u6700\u5c0f\u5316\u5728\u5f62\u5f0f\u4e0a\u4e0e\u53d8\u5206\u8d1d\u53f6\u65af\u65b9\u6cd5 Variational Bayesian methods\u6709\u5173\uff0c\u6700\u521d\u7531Karl Friston\u5f15\u5165\uff0c\u4f5c\u4e3a\u795e\u7ecf\u79d1\u5b66\u4e2d\u5bf9\u5177\u8eab\u77e5\u89c9\u7684\u89e3\u91ca\uff0c\u5728\u90a3\u91cc\u5b83\u4e5f\u88ab\u79f0\u4e3a\u201c\u4e3b\u52a8\u63a8\u7406\u201d\u3002<\/span><\/section>\n

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\u8fd9\u4e9b\u793a\u610f\u56fe\u8bf4\u660e\u4e86\u5982\u4f55\u5c06\u72b6\u6001\u5212\u5206\u4e3a\u5185\u90e8\u72b6\u6001\u548c\u9690\u85cf\u72b6\u6001\u6216\u5916\u90e8\u72b6\u6001\uff0c\u8fd9\u4e9b\u72b6\u6001\u7531\u4e00\u4e2a\u9a6c\u5c14\u53ef\u592b\u6bef\uff08\u5305\u62ec\u611f\u89c9\u72b6\u6001\u548c\u6d3b\u52a8\u72b6\u6001\uff09\u5206\u9694\u5f00\u6765\u3002\u4e0b\u9762\u7684\u9762\u677f\u663e\u793a\u4e86\u8fd9\u4e2a\u5206\u533a\uff0c\u56e0\u4e3a\u5b83\u5c06\u5e94\u7528\u4e8e\u5927\u8111\u4e2d\u7684\u52a8\u4f5c\u548c\u611f\u77e5\uff1b\u6d3b\u52a8\u548c\u5185\u90e8\u72b6\u6001\u5c06\u611f\u5b98\u72b6\u6001\u7684\u81ea\u7531\u80fd\u529f\u80fd\u6700\u5c0f\u5316\u3002\u968f\u540e\u5185\u90e8\u72b6\u6001\u7684\u81ea\u7ec4\u7ec7\u4e0e\u611f\u77e5\u76f8\u5bf9\u5e94\uff0c\u800c\u52a8\u4f5c\u5c06\u5927\u8111\u72b6\u6001\u4e0e\u5916\u90e8\u72b6\u6001\u8026\u5408\u3002\u4e0a\u9762\u7684\u9762\u677f\u663e\u793a\u5b8c\u5168\u76f8\u540c\u7684\u4f9d\u8d56\u6027\uff0c\u4f46\u91cd\u65b0\u6392\u5217\uff0c\u4f7f\u5185\u90e8\u72b6\u6001\u4e0e\u7ec6\u80de\u5185\u72b6\u6001\u76f8\u5173\u8054\uff0c\u800c\u611f\u89c9\u72b6\u6001\u6210\u4e3a\u7ec6\u80de\u819c\u7684\u8868\u9762\u72b6\u6001\u8986\u76d6\u6d3b\u6027\u72b6\u6001\uff08\u4f8b\u5982\uff0c\u7ec6\u80de\u9aa8\u67b6\u7684\u808c\u52a8\u86cb\u767d\u4e1d\uff09\u3002<\/span><\/section>\n

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\u884c\u52a8\u4e0e\u611f\u77e5<\/span><\/strong><\/h3>\n
\u76ee\u6807\u662f\u6700\u5927\u5316\u6a21\u578b\u8bc1\u636e p(s | m)\u6216\u6700\u5c0f\u5316\u610f\u5916 -logp(s | m)\u3002\u8fd9\u901a\u5e38\u6d89\u53ca\u9690\u85cf\u6001\u7684\u96be\u4ee5\u5904\u7406\u7684\u8fb9\u7f18\u5316\uff0c\u56e0\u6b64\u610f\u5916\u88ab\u4e00\u4e2a\u8f83\u9ad8\u7684\u53d8\u5206\u81ea\u7531\u80fd\u8fb9\u754c\u6240\u53d6\u4ee3\u3002\u7136\u800c\uff0c\u8fd9\u610f\u5473\u7740\u5185\u90e8\u72b6\u6001\u4e5f\u5fc5\u987b\u6700\u5c0f\u5316\u81ea\u7531\u80fd\uff0c\u56e0\u4e3a\u81ea\u7531\u80fd\u662f\u611f\u5b98\u548c\u5185\u90e8\u72b6\u6001\u7684\u51fd\u6570\uff1a<\/span><\/section>\n
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\u81ea\u7531\u80fd\u6700\u5c0f\u5316\u4f7f\u77e5\u89c9\u4e2d\u7684\u65e0\u610f\u8bc6\u63a8\u7406\u7684\u6982\u5ff5\u6b63\u89c4\u5316\u3002<\/span><\/section>\n

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\u81ea\u7531\u80fd\u6700\u5c0f\u5316\u4e0e\u70ed\u529b\u5b66<\/span><\/strong><\/h3>\n
\u53d8\u5206\u81ea\u7531\u80fd\u662f\u4e00\u79cd\u4fe1\u606f\u8bba\u6cdb\u51fd\uff0c\u4e0d\u540c\u4e8e\u70ed\u529b\u5b66Helmholtz\u81ea\u7531\u80fd\u3002\u7136\u800c\uff0c\u53d8\u5206\u81ea\u7531\u80fd\u7684\u590d\u6742\u6027\u9879\u4e0eHelmholtz\u81ea\u7531\u80fd\u5177\u6709\u76f8\u540c\u7684\u4e0d\u52a8\u70b9\uff08\u5047\u8bbe\u7cfb\u7edf\u662f\u70ed\u529b\u5b66\u5c01\u95ed\u800c\u975e\u5b64\u7acb\u7684\uff09\u3002\u8fd9\u662f\u56e0\u4e3a\u5982\u679c\u611f\u5b98\u5e72\u6270\u88ab\u6682\u505c\uff08\u4e00\u6bb5\u9002\u5f53\u957f\u7684\u65f6\u95f4\uff09\uff0c\u590d\u6742\u6027\u88ab\u6700\u5c0f\u5316\uff08\u56e0\u4e3a\u51c6\u786e\u5ea6\u53ef\u4ee5\u5ffd\u7565\uff09\u3002\u6b64\u65f6\uff0c\u7cfb\u7edf\u5904\u4e8e\u5e73\u8861\u72b6\u6001\uff0c\u5185\u90e8\u72b6\u6001\u6839\u636e\u6700\u5c0f\u80fd\u91cf\u539f\u7406\u4f7f\u4ea5\u59c6\u970d\u5179\u81ea\u7531\u80fd\u6700\u5c0f\u5316\u3002<\/span><\/section>\n

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\u81ea\u7531\u80fd\u6700\u5c0f\u5316\u4e0e\u4fe1\u606f\u8bba<\/span><\/strong><\/h3>\n
\u81ea\u7531\u80fd\u6700\u5c0f\u5316\u76f8\u5f53\u4e8e\u6700\u5927\u5316\u611f\u5b98\u72b6\u6001\u548c\u5185\u90e8\u72b6\u6001\u4e4b\u95f4\u7684\u4e92\u4fe1\u606f\uff0c\u4f7f\u53d8\u5206\u5bc6\u5ea6\u53c2\u6570\u5316\uff08\u5bf9\u4e8e\u56fa\u5b9a\u71b5\u53d8\u5206\u5bc6\u5ea6\uff09\u8fd9\u5c06\u81ea\u7531\u80fd\u6700\u5c0f\u5316\u4e0e\u6700\u5c0f\u5197\u4f59\u539f\u5219\u8054\u7cfb\u8d77\u6765\u3002\u5e76\u4e14\u8054\u7cfb\u5230\u7528\u4fe1\u606f\u8bba\u63cf\u8ff0\u6700\u4f18\u884c\u4e3a\u7684\u76f8\u5173\u5904\u7406\u3002<\/span><\/section>\n

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\u795e\u7ecf\u79d1\u5b66\u4e2d\u7684\u81ea\u7531\u80fd\u6700\u5c0f\u5316<\/span><\/strong><\/strong><\/span><\/strong><\/strong><\/p>\n<\/section>\n

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\u81ea\u7531\u80fd\u6700\u5c0f\u5316\u4e3a\u5728\u4e0d\u786e\u5b9a\u6027\u6761\u4ef6\u4e0b\u5efa\u7acb\u795e\u7ecf\u5143\u63a8\u7406\u548c\u5b66\u4e60\u7684\u89c4\u8303\uff08Bayes\u6700\u4f18\uff09\u6a21\u578b\u63d0\u4f9b\u4e86\u4e00\u79cd\u6709\u6548\u7684\u65b9\u6cd5\u56e0\u6b64\u7b26\u5408\u8d1d\u53f6\u65af\u8111\u5047\u8bf4\u3002\u7531\u81ea\u7531\u80fd\u6700\u5c0f\u5316\u63cf\u8ff0\u7684\u795e\u7ecf\u5143\u8fc7\u7a0b\u53d6\u51b3\u4e8e\u9690\u85cf\u72b6\u6001\u7684\u6027\u8d28\uff1a<\/span><\/section>\n
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\u611f\u6027\u63a8\u7406\u4e0e\u5206\u7c7b<\/span><\/strong><\/h3>\n
\u81ea\u7531\u80fd\u6700\u5c0f\u5316\u4f7f\u77e5\u89c9\u4e2d\u7684\u65e0\u610f\u8bc6\u63a8\u7406\u6982\u5ff5\u6b63\u5f0f\u5316\u5e76\u63d0\u4f9b\u4e86\u795e\u7ecf\u5143\u5904\u7406\u7684\u89c4\u8303\uff08\u8d1d\u53f6\u65af\uff09\u7406\u8bba\u3002\u795e\u7ecf\u5143\u52a8\u529b\u5b66\u7684\u76f8\u5173\u8fc7\u7a0b\u7406\u8bba\u662f\u57fa\u4e8e\u901a\u8fc7\u68af\u5ea6\u4e0b\u964d\u6700\u5c0f\u5316\u81ea\u7531\u80fd\u3002\u8fd9\u5bf9\u5e94\u4e8e\u5e7f\u4e49\u8d1d\u53f6\u65af\u6ee4\u6ce2\uff08\u5176\u4e2d~\u8868\u793a\u5e7f\u4e49\u8fd0\u52a8\u5750\u6807\u4e2d\u7684\u53d8\u91cf\uff0cD\u662f\u4e00\u4e2a\u5bfc\u6570\u77e9\u9635\u8fd0\u7b97\u7b26\uff09\uff1a<\/span><\/section>\n
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\u77e5\u89c9\u5b66\u4e60\u4e0e\u8bb0\u5fc6<\/span><\/strong><\/h3>\n
\u5728\u9884\u6d4b\u7f16\u7801\u4e2d\uff0c\u901a\u8fc7\u81ea\u7531\u80fd\uff08\u81ea\u7531\u4f5c\u7528\uff09\u65f6\u95f4\u79ef\u5206\u7684\u68af\u5ea6\u4e0a\u5347\u6765\u4f18\u5316\u6a21\u578b\u53c2\u6570\u4f1a\u964d\u4f4e\u5230\u8054\u60f3\u6216 Hebbian\u53ef\u5851\u6027\uff0c\u5e76\u4e0e\u5927\u8111\u4e2d\u7684synaptic\u53ef\u5851\u6027\u76f8\u5173\u3002<\/span><\/section>\n

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\u77e5\u89c9\u7684\u7cbe\u786e\u6027\u3001\u6ce8\u610f\u529b\u548c\u663e\u8457\u6027<\/span><\/strong><\/h3>\n
\u4f18\u5316\u7cbe\u5ea6\u53c2\u6570\u5bf9\u5e94\u4e8e\u4f18\u5316\u9884\u6d4b\u8bef\u5dee\u7684\u589e\u76ca\uff08\u53c2\u89c1Kalman\u589e\u76ca\uff09\u3002\u5728\u9884\u6d4b\u6027\u7f16\u7801\u7684\u795e\u7ecf\u5143\u4f3c\u662f\u800c\u975e\u7684\u5b9e\u73b0\u4e2d\uff0c\u8fd9\u5bf9\u5e94\u4e8e\u4f18\u5316\u6d45\u8868\u9525\u4f53\u7ec6\u80de\u7684\u5174\u594b\u6027\uff0c\u5e76\u88ab\u89e3\u91ca\u4e3a\u6ce8\u610f\u589e\u76ca\u3002<\/span><\/section>\n
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\u81ea\u7531\u80fd\u4e13\u98981\uff1a\u539f\u7406\u53ca\u5e38\u89c1\u65b9\u6cd5https:\/\/zhuanlan.zhihu.com\/p\/365654509<\/span><\/p>\n


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\u96c6\u667a\u8bfe\u7a0b<\/span><\/strong><\/h3>\n

\u4e34\u754c\u73b0\u8c61\u7684\u6807\u5ea6\u6027\u4e0e\u8d85\u6807\u5ea6\u5173\u7cfb<\/span><\/strong><\/span><\/h4>\n

https:\/\/campus.swarma.org\/course\/1525<\/span><\/p>\n

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