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微信群分享：小步慢跑,聊聊Python中的多线程
python作为一门优秀的编程语言，在TIOBE排行榜上，长期稳坐前十的位置。但在日常生活中，尤其是对编程小白来说，想学习一门新语言并不简单，有的甚至只能自学到一点皮毛。 为此，CSDN特向广大Python爱好者开设了学习班，帮助大家在学习Python的道路上少走弯路，事半功倍。上周五，“CSDN博客专家会客厅”走进班级，CSDN博客专家、技术达人刘冬作为受邀专家与大家畅聊Python。...
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Introducing Kadro
I've created a small python project on github called kadro that may never get any traction but seems to scratch a small itch I've had with pandas. In this document I'd like to explain what it does....
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Deep Learning: Recurrent Neural Networks in Python
Discover the Artificial Science Behind Speech Recognition & Other Futuristic Sciences A recurrent neural network is a class of artificial neural network where connections form a directed cycle,...
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ganguli-lab/twpca: Time-warped principal components analysis (twPCA)
Time warped principal components analysis (TWPCA) Ben Poole :beer: , Alex H. Williams , Niru Maheswaranathan :soccer: TL;DR: simultaneously align and reduce the dimensionality of data with repeated...
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Data Science: Deep Learning in Python
Artificial neural networks are the architecture that make Apple’s Siri recognize your voice, Tesla’s self-driving cars know where to turn, Google Translate learn new languages, and so many more...
View ArticleIn Python, strings are infinitely recursively iterable
Yesterday I posed the side question of what happened when you called the following code with flatten2(["abcdef",]) : def flatten2(inlst): olst = [] for i in inlst: try: it = iter(i) except TypeError:...
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Parsing a Text File of Numeric Values using Python
I’ve been using python quite a bit recently, mostly because I’ve been looking at the TensorFlow and CNTK machine learning libraries which both have a Python interface. Some tools, such as Weka, use a...
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Python NLTK学习9（评估分类器的方法）
发表于:2天前阅读:61 本系列博客为学习《用python进行自然语言处理》一书的学习笔记。 引言 假设我们现在写了一个垃圾邮件分类器，它可以将邮件分类成垃圾邮件和非垃圾邮件。现在我们有一个总数为1000的测试样本集，其中垃圾邮件数量100，非垃圾邮件数量900。我们将分类器分类后的结果用下图表示： True positive 真阳性（TP）：正确识别为相关的，也就是正确识别为垃圾邮件。 False...
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Keras:基于Theano和TensorFlow的深度学习库
catalogue 1. 引言2. 一些基本概念3. Sequential模型4. 泛型模型 1. 引言 Keras是一个高层神经网络库，Keras由纯python编写而成并基Tensorflow或Theano 简易和快速的原型设计（keras具有高度模块化，极简，和可扩充特性）支持CNN和RNN，或二者的结合支持任意的链接方案（包括多输入和多输出训练）无缝CPU和GPU切换0x1:...
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Pyhon 获取文件夹的大小统计
通过python 实现文件夹大小的统计：主要是通过了 import os 中的几个方法来实现。 --Zero Python OS 文件/目录方法 首先介绍用到的几个函数，写了一个小demo便于理解。 os.getcwd() 返回当前路径。 os.listdir （path） 返回当前路径下的文件夹与文件（不向下二级递归）。 os.path.join() join()...
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Brian Okken: 27: Mahmoud Hashemi : unit, integration, and system testing
What is the difference between a unit test, an integration test, and a system test? Mahmoud Hashemi helps me to define these terms, as well as discuss the role of all testing variants in software...
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Python量子力学计算模拟以及数据可视化
python量子力学计算模拟以及数据可视化 一点号复旦大数据5小时前 复旦大数据 Pytlab，Python 中文社区专栏作者。主要从事科学计算与高性能计算领域的应用，主要语言为Python，C，C++。熟悉数值算法(最优化方法，蒙特卡洛算法等）与并行化...
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Self-contained projects in python
An important concept for us is the notion of self-containment. For a project in development this means you find everything you need to develop and run the software directly in the one repository you...
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Python正则表达式之一：基础
前一阵，QA提了一个需求，我一看此需求用正则表达式最合适不过。考虑到之前每次使用正则表达式，都是临时抱佛脚，于是这次我就一遍完成任务一遍系统的学习了一遍正则表达式。主要参考PyCon2016上的一个视频 Regular Expressions 。我将分几篇文章对正则表达式进行总结。以下是第一部分，基础： 基础部分...
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Inside the black box Part 2 Python
This is the second topic of the “Black Box” series, bringing us to python. For people interested in Part One, generated code, please click here . In this post I’ll go through how to take a simple...
View ArticleFrank Krueger: Fashionable REPL Prompts
Fashionable REPL Prompts I was writing a new language the other day and I thought, “this puppy needs a REPL”! But before I could write one, I had to decide how it would look and behave. I mean, I knew...
View ArticleiOS Photo Merge for Pythonista 3
One of the changes I've been trying to adopt with shifting more of myworkflows to my iPad has been to also move to my scripting from pythonista to Pythonista 3 . The key here is the original...
View ArticleOptimizing rolling feature engineering for time series data
In this blog post, I want to talk about how data scientists can efficiently perform certain types of feature engineering at scale. Before we dive into sample code, I will briefly set the context of how...
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Calling Go Functions from Other Languages
Starting with version 1.5, the Go compiler introduced support for several build modes via the -buildmode flag. Known as the Go Execution Modes , these build modes extended the go tool to compile Go...
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Analyzing 4 Million Yelp Reviews with Python on AWS
Yelp runs a data challenge every year in which it invites people to explore its real-world datasets for unique insights. In this post, I show how to load the dataset into a Jupyter Notebook running on...
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