GithubHelp home page GithubHelp logo

yqgong / nn_from_scratch Goto Github PK

View Code? Open in Web Editor NEW
107.0 107.0 53.0 27.81 MB

B站视频系列-从零开始的神经网络

License: GNU General Public License v3.0

Jupyter Notebook 96.65% Python 3.35%

nn_from_scratch's People

Contributors

southantarctic avatar yqgong avatar

Stargazers

 avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar  avatar

Watchers

 avatar

nn_from_scratch's Issues

grad_parameters函数输出结果w1的值好像有点异常

在ANN_pre_1.ipynb文件的中In [27]这个块里。执行之后得出来的关于w1的梯度值都为0,这样的话不是无论训练多少次后w1参数的值都不会变化么?但是B站的视频中在执行这一块代码块的时候w1的值好像是正常的,所以一开始我以为是我的代码问题,但是来github上看了以后发现这里的代码有着一样的问题,请问原因是什么呢?好像因为这一步的关系导致训练的效率很低,而且多次训练后最终的准确率也只能在百分之八十五左右。希望能得到解答,十分感谢。
批注 2019-06-27 211016

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google ❤️ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.