TF-IDF algorithm implementation

Introduction to TF-IDF ● term frequency inverse document frequency (TF-IDF) is a commonly used weighting technology for information retrieval and text mining ● TF-IDF is a statistical method used to evaluate the importance of a word to a document set or one of the documents in a corpus. The importance of a word increases in proportion to the n ...

Posted by bogha on Mon, 04 Apr 2022 12:04:09 +0300

The parsing of Java semaphores is all here

Semaphore is a thread synchronization structure used to pass signals between threads to avoid signal loss, or to protect a key area like a lock. Since 5.0, jdk has been used in Java util. The official implementation of semaphore is provided in the concurrent package, so you don't need to implement semaphore yourself. However, it is necessary to ...

Posted by Stunt on Mon, 04 Apr 2022 00:30:22 +0300

OpenCV learning notes 3 - color space and important data structure (with code implementation)

1 color space of opencv 1.1 RGB and BGR The most common color space is RGB, and human eyes distinguish colors based on RGB color space OpenCV uses BGR by default The difference between BGR and RGB color space is that the pictures are arranged in different order on the color channel When displaying a picture, you should pay attention to ...

Posted by big_al on Sat, 02 Apr 2022 03:07:54 +0300

The 6th pass, the old driver takes you to choose wine_ k-nearest neighbor algorithm - Xiaoxiang College

Course catalogue Elephant Academy - Artificial Intelligence Pay attention to the official account [Python family] to receive 1024G complete teaching materials, exchange group learning and business cooperation. We have sorted and shared several sets of teaching materials from four digit training institutions. Now we share and exchange learni ...

Posted by Nabster on Fri, 01 Apr 2022 19:55:53 +0300

Transformers practice - AclImdb emotion classification using local data

This article uses https://huggingface.co/models Bert base uncased pre training model and aclImdb dataset Conduct actual combat. Partial library version transformers==4.17.0torch==1.11.0datasets==2.0.0 Data introduction AclImdb – v1 Dataset is a large movie review dataset for binary emotion classification, which covers more data than t ...

Posted by Stephen68 on Fri, 01 Apr 2022 10:13:07 +0300

[artificial intelligence experiment] A * algorithm to solve 8 digital problems

catalogue Experiment 1 A * algorithm to solve 8 digital problems 1, Experimental purpose 2, Experimental principle 3, Experimental results 4, Experimental summary Appendix code Experiment 1 A * algorithm to solve 8 digital problems 1, Experimental purpose Be familiar with and master the definition, evaluation function and algorithm pr ...

Posted by believer on Thu, 31 Mar 2022 08:04:06 +0300

Colab platform uses gensim package to realize Word2Vec and fasttext (cbow and skip gram)

It is not advisable to build wheels repeatedly. We should reasonably learn to adjust (tou) package (lan)! Gensim is an open source library that can be used for unsupervised learning and natural language processing. The programming languages are Python and python. More details can be queried on the official website. First import the basic pack ...

Posted by paolo on Thu, 31 Mar 2022 00:58:55 +0300

Summary of some topics in the Python linked list of Blue Bridge Cup

Blue Bridge Cup Python topic sorting - linked list The following topics are selected from Blue bridge cloud course: https://www.lanqiao.cn/courses/5456 LeetCode: https://leetcode-cn.com/problemset/all/ LeetCode83: delete duplicate elements in the sorting linked listSword finger offer22: delete duplicate items in the linked listSword fing ...

Posted by simonb on Wed, 30 Mar 2022 14:36:43 +0300

Analysis of 3DMM sample source code of Face3D learning notes [middle and lower] reconstructing a 3D model from the feature points of a 2D picture -- the gold standard algorithm

Write in front In order to ensure that the whole sample project is more intuitive and easy to understand, numpy version will be used to display the source code of some functions, while numpy version library is not used in the sample program. There will be a mark in front of the original code where there is a difference between Python version a ...

Posted by janet287 on Tue, 29 Mar 2022 16:32:45 +0300

Deep learning classic network analysis: DenseNet

1. Background introduction    DenseNet is CVPR's Best Paper in 2017. It breaks away from the stereotype of deepening the number of network layers (ResNet) and widening the network structure (Inception) to improve the network performance. From the perspective of features, through feature reuse and bypass setting, it not only great ...

Posted by MattG on Sun, 27 Mar 2022 04:05:43 +0300