Programmer Think

1, Convolution neural network is used to do facial expression recognition such as smiling face and non smiling face 1.1 research background Facial Expression Recognition In daily work and life, people's emotional expression mainly includes: language, voice, physical behavior (such as gestures), facial expression and so on. Among these behavi ...

Compared with the traditional retrieval based on literal keywords, semantic retrieval has many advantages and is widely used in question answering and search systems. Today, Xiaobian will take you to complete a semantic retrieval system based on domain pre training and comparative learning SimCSE. The so-called semantic retrieval (also known a ...

Fatal Frame. preface Because it is a simulation, the model is also strange, so the coordinate information does not need the way of wheel integration. After meeting the real model, we will analyze the velocity conversion of Ackerman motion model. Moreover, the motion decomposition of the real situation is more complex, which is not as ideal as ...

@[TOC] (non negative matrix factorization practice) 1. Application Overview NMF can be applied in a wide range of fields because it has a good explanation of the local characteristics of things. In many applications, NMF can be used to discover image features in database, which is convenient for rapid and automatic recognition;It can discove ...

Lesson 4.3 basic principle and manual implementation of gradient descent In the previous section, we have successfully constructed the loss function of logistic regression, but due to the particularity of the logistic regression model itself, we cannot adopt the calculation idea similar to SSE when constructing the loss function (at this time, ...

Path planning algorithm - Astar C + + implementation and display The following are original contents. Please reprint them from famous sources. Thank you. 1. Main function main.cpp The main function mainly provides the external interface to implement the algorithm. The main process here is 1. Call MapData(mapPath) to read map data 2. ...

Background knowledge required for reading this article: logarithmic probability regression algorithm (I), conjugate gradient method, and a little programming knowledge1, Introduction   continue with a log probability regression algorithm (I), which introduces two methods to optimize the cost function of log probability regression - Gr ...

As an undergraduate majoring in artificial intelligence, I came into contact with face detection in my freshman study. And with the help of teachers, successfully use the code to recognize and train a series of face pictures. Now I want to share the problems and training results I encountered in the process of training the model. Face Detectio ...

Introduction: For the enhancement of seven segment nixie tube pictures, LeNet is used to establish the recognition model of the data set. Based on this model, it will be used to recognize the numbers in actual pictures in the future. Key words: LCD, LENET   § 01 seven segment digital identification 1.1 data collection pr ...

1. Preface This case is an online learning course purchased a long time ago. Recently, when I suddenly think of it, I realize to record it. Today, with the gradual flow of deep learning, the application of HOG+SVM custom object recognition may not be very large, but in a fixed scene, if the size of custom objects in the image is relatively con ...