The usage of partial * * * ByKey in pyspark

Preparation import pyspark from pyspark import SparkContext from pyspark import SparkConf conf=SparkConf().setAppName("lg").setMaster('local[4]') sc=SparkContext.getOrCreate(conf) 1. aggregateByKey The former function in aggregateByKey is a function calculated in each partition, and the latter fun ...

Posted on Sat, 22 Feb 2020 01:35:39 -0800 by YOUAREtehSCENE

Java self study Lambda method reference

Lambda method reference Step 1: reference static methods First, add a static method to TestLambda: public static boolean testHero(Hero h) { return h.hp>100 && h.damage<50; } Lambda expression: filter(heros, h->h.hp>100 && h.damage<50); Call this static method in the Lambda expression: filter(heros, h -> Test ...

Posted on Thu, 20 Feb 2020 00:50:26 -0800 by djroki

Lambda expression of must know must know

Java is a powerful object-oriented language. In addition to eight basic data types, everything else is an object. Therefore, defining a function or method in Java is inseparable from an object, which means that it is difficult to directly pass a method or function as a parameter, and the Lambda expression in Java 8 solves this problem. 1, Why L ...

Posted on Wed, 19 Feb 2020 05:46:17 -0800 by valen53

Task 4 ﹣ 3 transformer

System learning "hands on deep learning" click here: Task 1 ﹣ 1 linear regression in hands on deep learningTask 1 ﹣ 2 softmax and classification model in hands on deep learningTask 1 ﹣ 3 multi-layer perceptron in hands-on deep learningThe text preprocessing of "hands on deep learning&q ...

Posted on Wed, 19 Feb 2020 03:33:59 -0800 by micklerlop

[error record] bug s found in WarpGAN code running and Solutions

1. The align module (mouse not found error) cannot be found The common reason for hhh is that the py file or other files in the import folder are wrongly written, because they have been changed before. This time, there are some problems with the path of import. Just check it carefully. 2. Attribute ...

Posted on Mon, 17 Feb 2020 00:27:04 -0800 by mydog

Deep learning task 3 over fitting, under fitting / gradient disappearing, gradient explosion / cyclic neural network advanced

1, Over fitting, under fitting and their solutions ·Model selection, over fitting and under fitting Training error: the error of the model in the training data set Generalization error: the expectation of the model error on any test sample, which is often approximated by the error on the test ...

Posted on Sun, 16 Feb 2020 21:29:38 -0800 by JonnyThunder

Make a simple video browsing site with flask

ide: pycharm community 2019.3.1 python version: 3.7.6 Start with a new project named flask_demo1 If you are not using a virtual environment, you can ignore the venv directory Install flask pip install flask First Program File Create a new py file, such as main.py, with the following code from flas ...

Posted on Sun, 16 Feb 2020 19:19:25 -0800 by Techissue2008

Natural Language Learning 15-Implementation of Chinese Named Entity Recognition Model Based on CRF

Conditional Random Field (CRF) Conditional Random Fields (CRF) is a conditional probability distribution model for a given set of input sequences and another set of output sequences. A random field is a whole composed of several locations. When a value is randomly assigned to each location accordin ...

Posted on Sun, 16 Feb 2020 18:53:49 -0800 by gofer

[code reading] warpgan: automatic card generation

Code link Reference book: Tensorflow practice Google deep learning framework I think we can see how tensorflow is built and train a neural network more clearly in Chapter 3. 1. train.py This document defines the main function def main(args): Initialization: # Initalization for running if c ...

Posted on Wed, 12 Feb 2020 02:48:10 -0800 by RyanSmith345

Section 13: love and kill of Lambda, linq and SQL

1, Linq opening 1.Where Where in linq is basically the same as where in SQL. 1 #Region 01 where usage 2 { 3 //1. where 4 //1.1 query the user information whose account is admin 5 Console.WriteLine("--------------------- ...

Posted on Wed, 05 Feb 2020 21:22:44 -0800 by project168