Tensorflow-template

Linux CPU

A template of tensorflow projects to maximize code reuse.

一个Tensorflow代码组织模板，目标是让大家少写代码。

Update 更新

• 2018/07/14: Added experiment of AdamW and result.
  • Got slightly better result and get faster to convergence.
    • AdamW experiment on train
      
    • AdamW experiment on test
      

Introduction 引言

I am a beginner of Tensorflow, and found that there remains a far distance from the tensorflow official example to mature, community-recognized tensorflow code.     In order to promote exchange of model and modules, and to limit the frequently user-modified parts in a few files, the community gradually formed a set of unwritten standards. As a beginner, I try to discover these standards and start learning in an orderly manner.  

我是一个初学者，发现从tensorflow官网的例子，到成熟的，社区公认的tensorflow代码有不小的距离。
为了最大化模型复用程度，并把要频繁要自己写的部分都限定在单独的几个文件中，社区逐渐形成了一套不成文的标准。我作为初学者，尝试去发现这些标准并有条理地开始学习。

Key concepts 核心概念

• module.py和model.py是子图和主图
  module.py and model.py is sub-graph and main-graph
• dataset_prepare.py是数据准备器
  dataset_prepare.py is the data pre-processor
• main是图的运行器（以指定方式，通过给图注入数据进行运行）
  main.py is the runner of the graph(feed the prepared data into graph in given manner)

Zen of Deep Learning codes 深度学习代码之禅

• Let anyone run with one command
  要让复现的人一个命令就能跑通
• Let anyone who want to improve the model focus on one file: model.py
  让想要改进的人只需要集中改一个文件：model.py
• Decouples the model, data, and code (those that are independent of the model and the data)
  把模型，数据和代码（跟模型和数据无关的那些代码）解耦
• Experimental steps should write on the .sh files for better debugging
  实验步骤应该放在.sh文件中里便于调试
• Use less TensorFlow for plain style, to the contrary where performance is important
  要简洁的地方少用TensorFlow，需要性能的地方反之

Usage 用法

• Default run 默认用法:
  Just run bash all_default.sh And wait everything done.
  只需运行bash all_default.sh即可

• To write a new model:

  • Prepare dataset(download,extract,and simply pre-processing) with dataset_prepare.py
  • Define network in ./models
  • Define modules in ./module
  • Define params in hprams.py
  • Define placeholder to feed in main.py, as the input of algorithm
  • [optional]Define dataset preprocessing mapper function in preprocessing_util.py
  • [optional]Define experiment with a new .sh file in ./experiment

Sign 符号

• x: input data
  x：输入数据
• inputs: input of the model
  inputs：模型的输入
• y: traget data (As label in supervised learning)
  y：目标数据（在监督学习中，就是label）
• y_hat or y_: prediction of y
  y_hat或者y_：y的预测值

TODO 待办

• Try tf.test.TestCase for tensor testing
• Compatible with common styles like this
  兼容常见模型定义风格，比如这个

Give up 舍弃

• Try tensorflow Estimator API to decouples Algorithm(net+loss+optim+...) and meta-Algorithm(experiment procedure: train, test,etc.)
  使用tensorflow Estimator API对main.py中的算法(net+loss+optim+...)和实验步骤(train, test,etc.)（实验步骤也可以作为元算法的组件，比如GAN）解耦

Any advices and contributions are welcome! Please click Here to give your comments.
欢迎各种建议和共建！ 请点此处以提出您的建议。