Programmer Group

We are no strangers to the term concurrency, which usually refers to the simultaneous execution of multiple tasks. In fact, this is not entirely true, "parallel" is the real sense of simultaneous execution, while "concurrent" is more focused on Multi-task alternate execution. Sometimes we see people chewing and talking, whic ...

Collective Framework Brainstorming mind mapping Preliminary conditions: When writing an object-oriented program, a group of objects of the same type are often used, and arrays can satisfy it. But the disadvantage of arrays is that once defined ...

Links to the original text: https://wuwang.blog.csdn.net/article/details/52826856 In previous blogs, we drew triangles, squares, circles and cubes. Today we will draw cones, cylinders and spheres. After these basic conventional geometric ...

function Function is the most basic program structure that Python provides for maximizing code reuse and minimizing code redundancy. Functional Formula: Encapsulate a function code into a function, so that it does not need to be repeated in the fu ...

1. List Generator describe The following code will report errors. Why? class A(object): x = 1 gen = (x for _ in xrange(10)) # gen=(x for _ in range(10)) if __name__ == "__main__": print(list(A.gen)) To recommend a python learning advanced extrapolation exchange base 906407826 (Python ...

Tensorflow has introduced Estimator since version 1.3, and with the evolution of the version, support for this advanced API programming method is increasing, and support for multi-GPU training can be easily realized on Estimator. In my previous blog, I used the low-level API to build and train the mo ...

When we talk about the weight reduction of a set, we can definitely think of a set of unique elements, as well as the key in a map. So our traditional way of de-duplication is definitely to choose set or map to implement. In addition, when de-duplicating the entity object type, we may specify a field ...

Data preprocessing problem analysis Irrelevant feature deletion Data Type Conversion Missing Value Processing problem analysis The data to be processed this time is to predict whether loan users will be overdue. There are 89 field s in the data, of which "status" is the result label: 0 ...

Download Data import os import tarfile # Used to compress and decompress files import urllib DOWNLOAD_ROOT = "https://raw.githubusercontent.com/ageron/handson-ml/master/" HOUSING_PATH = "datasets/housing" HOUSING_URL = DOWNLOAD_ROOT + HOUSING_PATH + "/housing.tgz" # Download Data def fetch_housing_data(housing_url=HOUSING_URL, ...

Not much nonsense. Start with historical prize-winning data. We follow China Sports Color Network Climb the history prize data. Because the website belongs to static web pages, it is easy to get the desired content, so the crawling process is not described in detail. Code directly: import requests fro ...