Notes on My PaddlePaddle Learning Journey V——Captcha Recognition
Your tutorial provides a detailed introduction to using PaddlePaddle for captcha recognition, covering steps from dataset preparation, model design to final training and prediction. This series of steps is highly suitable for understanding and learning the basic processes and techniques of deep learning, especially its applications in the field of OCR (Optical Character Recognition). ### Code Structure Analysis 1. **Data Preprocessing**: - The `read_file` function is used to read image files and convert them into a format suitable for model input. - `load_and_tr
Read MoreNotes on "My PaddlePaddle Learning Journey" IV — Recognition of Custom Image Datasets
This series of notes mainly introduces how to implement a simple image recognition task using PaddlePaddle, including data preparation, model construction and training, as well as result prediction. The following is a summary of the main content of each part: ### 1. Environment Setup and Initial Configuration - **Environment Configuration**: First, install Python 3 and ensure it runs properly. - **Download Preprocessing Script**: Use the `DownloadImages.py` script to batch-download images to be recognized from Baidu Images. This script can perform downloads based on keywords (the original text is truncated here).
Read MoreNotes on "My Learning Journey with PaddlePaddle" III — CIFAR Color Image Recognition
This project is a CIFAR-10 image classification model implemented using PaddlePaddle, with a clear code structure and detailed comments. Below is a brief explanation of the main functions and principles of each part: ### 1. `vgg.py` This is a file containing the definition of the VGG network. VGG is a classic convolutional neural network architecture, and here it is implemented in PaddlePaddle. #### Main Content: - **Defines the VGG network structure**: Including multiple convolutional layers, pooling layers, and fully
Read MoreNotes on "My Learning Journey with PaddlePaddle" - MNIST Handwritten Digit Recognition
Your code is very detailed and already covers the entire process from training to prediction. Below, I will supplement and optimize several key points to help you better understand and use PaddlePaddle. ### 1. **Install Dependencies** Ensure you have installed the necessary libraries: ```bash pip install paddlepaddle numpy pillow ``` ### 2. **Code Improvements and Annotations** #### `infer.py` The following is for your provided `in ```
Read MoreNotes on "My Learning Journey with PaddlePaddle" — Part 1: Installation of PaddlePaddle
This note provides a detailed introduction to how to install and use PaddlePaddle (now referred to as Paddle) and demonstrates how to perform MNIST handwritten digit recognition through a specific example. Below is a summary of the note along with some supplementary information: ### Installing PaddlePaddle 1. **Python Environment Preparation**: - Ensure that Python and pip are already installed. 2. **Installation via pip**: ```bash pip inst ``` (Note: The original code snippet for installation appears to be truncated as "pip inst". Typically, the full command would be something like `pip install paddlepaddle` or a version-specific command for GPU/CPU.)
Read MoreStudy Notes on Deep Learning III — Numerical Computation
This article mainly explores some key concepts in the fields of deep learning and optimization, including gradient, partial derivative, constrained optimization, and the KKT method. Below is the organization and summary of these contents: ### 1. Gradient and Partial Derivative - **Univariate Function**: For a univariate function \( f(x) \), the stationary point (extreme point) can be found by solving its derivative \( df/dx = 0 \). - **Multivariate Function**: - **Partial Derivative**: For a function with multiple inputs \( z = f(x, y) \), partial derivatives can be computed by differentiating with respect to each input separately.
Read MoreStudy Notes on "Deep Learning" - Part 2: Probability Theory
This document covers many important concepts in probability theory and machine learning, including the distributions of random variables, commonly used functions, and correlation coefficients. Below is a summary of some key content: ### 1. Random Variables and Probability Distributions - **Bernoulli Distribution**: The distribution of a single binary random variable. - **Multinoulli Distribution (Categorical Distribution)**: The distribution over a single discrete random variable with \( k \) distinct states. - **Gaussian Distribution (Normal Distribution)**: \[ \mathcal{N}(x \]
Read MoreStudy Notes on Deep Learning I — Linear Algebra
This note covers various important concepts in machine learning, particularly those related to linear algebra. Below are some summaries and supplements to the content of the note: ### Fundamentals of Linear Algebra 1. **Matrices and Vectors**: Introduces matrices (arrays composed of multiple rows and columns) and vectors (essentially matrices with a single column or row). Emphasizes their importance in machine learning. 2. **Linear Combinations and Span**: - Linear Combination: Represented as $\sum_i x_i{\bf A}_{:,i}$. - Span (Note: The original content was cut off, so this is an assumption based on the context. If there was more specific content, please provide it for accurate translation.)
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