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[人脸识别]09_导数计算图与链式法则
09_导数计算图与链式法则
[人工智能]人脸识别-Python9/32
![[人脸识别]08_a^2函数的导数介绍](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/19c25a10c8c6400197206f0430a97ce4~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=IM0uzt39EvzO1J%2B0WLZreOM%2FmAs%3D)
App10:15![[人脸识别]09_导数计算图与链式法则](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/0587a1c8af4547a9b8039be192e8efb6~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=Qx7nqLm%2Fk8T9ulsRPUW7qOMavwA%3D)
App14:15![[人脸识别]10_逻辑回归的导数计算图分析以及参数导数](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/2aace7e576fb4f35b2ba219e90a94c4a~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=%2BpB6CqOEaTsLq0KEUoiYykYHPgI%3D)
App10:59![[人脸识别]11_向量化编程介绍引入](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/861118497e804ee6b041511b3645c977~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=oQpYlWFH5A8%2FxFcI5NdI0Z9MWoI%3D)
App09:49![[人脸识别]12_向量化编程的优势](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/8ee87342a4e84b8e98526410e69c2457~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=myRAmiBh4tJ8RxIC3cbF3SkRvCI%3D)
App10:19![[人脸识别]13_向量化实现逻辑回归的梯度计算更新](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/05463f12c7d543548b6bc9e431998f4c~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=rAAWmX9pml6IjSpnv1NWJjhmu%2Fc%3D)
App09:39![[人脸识别]14_正向传播与反向传播、作业介绍](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/be2ece9ab62b4427b4344c6f8891d6c5~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=SXFyrcn8pfRE14fNvI61dqRzDUo%3D)
App06:11![[人脸识别]15_作业讲解题1：实现sigmoid函数与梯度实](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/7e46818c846941a3824c5739b9428c97~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=SdrMFVZl1Mb9m6Vlf0JXNWvw79U%3D)
App03:39![[人脸识别]16_单神经元神经网络(logistic)分类作业流程介绍](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/2b427277380543dc88bf1e9a0e2aa12b~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=Ay46gNztYFmBIZb6ovEo6kCgyxs%3D)
App03:50![[人脸识别]17_作业讲解题2：参数初始化与前向传播、反向传播](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/cf6421b148c44256b15e7c574421ec51~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=4CQpDzQK8V2bfQvMjYvbVGUfvk8%3D)
App10:08![[人脸识别]18_作业讲解题2：优化迭代实现、model逻辑实现](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/c6284559eadc492cba05df270fcf72a6~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=X1mnO9BVcinunjjljTjAv5m7LpE%3D)
App08:42![[人脸识别]19_总结](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/d7d3198a9fe041738456871b3f77c0ae~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=uuSMFroGR5osuqiGXq247Qe9aNU%3D)
App05:21![[人脸识别]20.浅层神经网络](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/cc3afacff2f744189d167e523e0ec2f0~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=kaetPFE0%2B7gxji67M6VPRjUtTXc%3D)
App00:17![[人脸识别]21_浅层神经网络表示](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/b55e17dd8d3243458c0095a8bbe0faa0~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=Mmc5%2FVCZudWad619%2Fw8CZAWDH6s%3D)
App08:19![[人脸识别]22_浅层神经网络的前向传播](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/e8362bea70544ab6b1cbec525971afba~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=ozZS9ioznBDzHBh9Xul5mxig3CE%3D)
App06:54![[人脸识别]23_激活函数的选择](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/38514f38e996472baafd0454d6f4765f~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=yVaKvlTVCUksorKErtOcXaVZ2wk%3D)
App11:16![[人脸识别]24_浅层神经网络的反向传播](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/2b1c2e3f7a234c4988b19a4165fd659b~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=RCJoqccc7%2B%2FR8JzFFkGYNqt11vI%3D)
App10:25![[人脸识别]25_作业介绍](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/bb21ab3a34a54c659c8f6e29987272aa~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=O9TVvNbfu13Fh7KvS%2BsnY8srv54%3D)
App02:41![[人脸识别]26_作业实现：初始化模型与前向传播](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/ee1534b4123f4f8ab13a39edd0c4e0c5~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=s30q0dOHPjMpZ2solo7Hsq%2BamyU%3D)
App11:59![[人脸识别]27_作业实现：反向传播与更新梯度](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/921360b3adf5466bb67d7bfbded4d045~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=IeLEgFmKpc%2F7PAG9ABVfWDT27ec%3D)
App14:14![[人脸识别]28_作业实现：网络模型逻辑实现](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/4e9aa37965cd4a348523b694e270d405~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=q3jRNnJVkRnFKn9evRbQx0ObUJg%3D)
App05:33![[人脸识别]29_总结](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/4a79f3668c1b47aa89fa58d96cd11615~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=IHHPlCngkxqEoFiHF2CcdX1BYdY%3D)
App02:34![[人脸识别]30_深层神经网络表示](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/83716f9a626b40b18fac78a88cf2589e~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=159BEUCUKKw%2FNMUfJDivooQQkpA%3D)
App08:16![[人脸识别]31_深层神经网络的反向传播过程](http://p3-sign.bdxiguaimg.com/tos-cn-p-0000/d4fffd0d224649828c7f31465bcc6454~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=LfDi4tkWZzjGEmDu3A%2FCCGAKpZI%3D)
App05:26![[人脸识别]32_参数初始化与超参数介绍](http://p26-sign.bdxiguaimg.com/tos-cn-p-0000/1aa5ca2df4dc4bc3812450ba1c381129~tplv-pk90l89vgd-crop-center:576:324.jpeg?appId=3586&channelId=0&customType=custom%2Fnone&from=704_middle_image&imageType=list&isImmersiveScene=0&is_ios=1&is_stream=0&lk3s=9d3f5bff&logId=202409071407533A7104903591065099E5&requestFrom=704&version_code=80402&x-expires=1757225274&x-signature=ll9ZDuB9aZOf3lSfWM0%2BF%2F07v18%3D)
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