python

scrapy,Python开发的一个快速、高层次的屏幕抓取和web抓取框架,用于抓取web站点并从页面中提取结构化的数据。(scrapy , the high speed web crawler)

说明：  源代码；Python量化投资从入门到实战(source code; Practical Quant Investment in Python from Scratch)

说明：  使用知识图谱构建的汽车品牌问答系统，有爬虫文件和知识图谱构建文件(A question answering system of automobile brand based on Knowledge Map)

python standard library 中文版，非常有用(Chinese version of python standard library is very useful)

TexGen 三维全五向编织结构建模程序(3d braided composite modelling program in TexGen)

说明：  pythontoch人工智能编程入门教程书籍，python人工智能学习宝典(Pthontoch Introduction to Artificial Intelligence Programming Books, Pthontoch Artificial Intelligence Learning Treasure Book)

基于Python编写的差分进化原理的带边界条件约束算法(A band constraint algorithm based on differential evolution algorithm)

说明：  1. 常用的数值积分方法(特别是梯形法、Simpson方法、 Cotes公式、Romberg算法以及Gauss 求积公式)的原理； 2. 复合梯形公式，复合Simpson公式，Romberg算法的程序(1. Commonly used numerical integration methods (especially trapezoid method, Simpson method Cotes formula, Romberg algorithm and Gauss quadrature formula); 2. Program of compound trapezoid formula, compound Simpson formula and Romberg algorithm)

1. There are at least 10 nodes in the simulation and each node has at least two neighbors within its transmission area. 2. Every node periodically broadcasts a ”request” packet to its neighbors. Meantime, this node sets a timer with t time interval to wait for its neighbors ”re- sponse” packets. When receiving all responses from its neighbors during t, it prints ”success”; oth- erwise, it prints ”failure”. Assume that the broadcast periodical interval is bigger than t. 3. A neighbor that receives a ”request” packet, sends a ”response” packet after a random time τ , τ = random(0, 2t).(There are at least 10 nodes in the simulation and each node has at least two neighbors within its transmission area. Every node periodically broadcasts a request packet to its neighbors. Meantime, this node sets a timer with t time interval to wait for its neighbors response packets. When receiving all responses from its neighbors during t, it prints success oth- erwise, it prints failure. Assume that the broadcast periodical interval is bigger than t.)

说明：  该压缩文件是《深度学习之Tensorflow的入门、原理及进阶实战》，里面讲述了如何搭建TensorFlow环境，并讲述了深度学习的一些理论基础知识，而且通过例子进行辅助，能更好的理解掌握。(The compressed file is "Introduction, Principle and Advanced Combat of Tensorflow for Deep Learning", which describes how to set up the TensorFlow environment, and describes some theoretical basic knowledge of deep learning, and assists with examples to better understand .)