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Building Diagrams in Python with the Diagrams Package

The diagrams package is a powerful Python library that allows you to create diagrams and visualizations easily. In this post, we will explore different types of nodes and edges that can be used to build various diagrams. Installation Before we start, make sure you have the diagrams package installed. You can install it using pip : pip install diagrams Getting Started First, let's import the necessary modules from the diagrams package: from diagrams import Diagram, Cluster, Edge from diagrams .onprem .compute import Server from diagrams .onprem .database import PostgreSQL from diagrams .onprem .network import Nginx Simple Diagram Let's start with a simple example of a web application architecture: with Diagram( "Web App Architecture" , show=False): client = Server( "Client" ) web_server = Nginx( "Web Server" ) db_server = PostgreSQL( "Database Server" ) client >> web_server >> db_server I...

PyTorch Tutorial: Using ImageFolder with Code Examples

In this tutorial, we'll explore how to use PyTorch's ImageFolder dataset to load and preprocess image data efficiently. The ImageFolder dataset is a handy utility for handling image datasets organized in a specific folder structure. Table of Contents Introduction to ImageFolder Prerequisites Setting up the Dataset Data Augmentation (Optional) DataLoader Model and Training (Brief Overview) Let's get started! 1. Introduction to ImageFolder ImageFolder is a PyTorch dataset class designed to work with image data organized in folders. Each folder corresponds to a specific class, and images within those folders belong to that class. This structure makes it easy to load data for tasks like image classification. 2. Prerequisites Before we start, make sure you have the following installed: Python (>= 3.6) PyTorch (>= 1.8.0) torchvision (>= 0.9.0) You can install PyTorch and torchvision using pip: pip install torch torchvision 3. Setting up the Da...

TensorFlow Tutorial: tf.data for TFRecord

In this tutorial, we'll explore how to use TensorFlow's tf.data API to efficiently load and process TFRecord data for training deep learning models. The tf.data API provides a powerful and flexible way to build high-performance data input pipelines for TensorFlow. Code Examples 1. Importing Libraries import tensorflow as tf 2. Reading TFRecord Files # Define the list of TFRecord files tfrecord_files = [ "file1.tfrecord" , "file2.tfrecord" , "file3.tfrecord" ] # Define the feature description for parsing feature_description = { "image" : tf.io.FixedLenFeature([], tf.string), "label" : tf.io.FixedLenFeature([], tf.int64), } # Define a function to parse the TFRecord def parse_tfrecord(example_proto): return tf.io.parse_single_example(example_proto, feature_description) # Create a dataset from the TFRecord files dataset = tf.data.TFRecordDataset(tfrecord_files) # Map the parsing function to the datas...

PyTorch Tutorial: DALI Data Loader for NPZ Data

In this tutorial, we'll explore how to use NVIDIA DALI (Data Loading Library) with PyTorch to efficiently load and preprocess NPZ (NumPy Archive) data for training deep learning models. DALI is a powerful library that accelerates data loading and preprocessing, making it ideal for handling large datasets. Installation Before we begin, make sure to install the required libraries: pip install torch torchvision pip install --extra- index -url http s: //developer.download.nvidia. com /compute/redist nvidia-dali-cudaXX (Replace XX with your CUDA version , e .g., nvidia-dali-cuda110 for CUDA 11.0 ) Code Examples 1. Importing Libraries import torch import torchvision.transforms as transforms from nvidia.dali.pipeline import Pipeline import nvidia.dali.fn as fn import nvidia.dali.types as types 2. Defining the DALI Pipeline class NPZPipeline(Pipeline): def __init__( self , batch_size, num_threads, device_id, data_path): super ().__init__(batch_size, num_threa...

PyTorch Tutorial: DALI Data Loader for TFRecord Data

In this tutorial, we'll explore how to use NVIDIA DALI (Data Loading Library) with PyTorch to efficiently load and preprocess TFRecord data for training deep learning models. DALI is an optimized data pipeline library designed for high-throughput data loading and preprocessing, making it particularly useful when dealing with large datasets. Installation Before we begin, make sure to install the required libraries: pip install torch torchvision pip install --extra- index -url http s: //developer.download.nvidia. com /compute/redist nvidia-dali-cudaXX (Replace XX with your CUDA version , e .g., nvidia-dali-cuda110 for CUDA 11.0 ) Code Examples 1. Importing Libraries import torch import torchvision.transforms as transforms from nvidia.dali.pipeline import Pipeline import nvidia.dali.fn as fn import nvidia.dali.types as types 2. Defining the DALI Pipeline class TFRecordPipeline(Pipeline): def __init__( self , batch_size, num_threads, device_id, data_path): ...

The Factory Design Pattern in C++: A Comprehensive Guide with Example

Introduction In software development, the Factory pattern is a creational design pattern that provides an interface for creating objects without specifying their exact class. This pattern allows the client code to create objects based on certain conditions, encapsulating the object creation process and promoting loose coupling between the client and the concrete classes. In this blog post, we will explore the Factory pattern and provide a detailed C++ example to illustrate its implementation. Understanding the Factory Pattern The Factory pattern follows the concept of "separation of concerns" by providing a separate factory class responsible for object creation. It enables the client to interact with the factory to obtain objects, without having to know the specific class being instantiated. Key components of the Factory pattern: Abstract Product: Interface representing the product classes. Concrete Products: Classes that implement the Abstract Product interface. ...

The Singleton Design Pattern in C++: A Guide with Example

Introduction In software design, the Singleton pattern is a creational design pattern that ensures a class has only one instance and provides a global point of access to that instance. This pattern is useful when you want to control the number of instances of a class and ensure that there is a single, shared instance across the entire application. In this blog post, we will explore the Singleton pattern and provide a C++ example to illustrate its implementation. Understanding the Singleton Pattern The Singleton pattern is characterized by the following key points: Private Constructor: The class has a private constructor, preventing direct instantiation of objects from outside the class. Static Instance: The class maintains a static member variable that holds the single instance of the class. Global Access: The class provides a static method to access the single instance, ensuring that all parts of the application can access the same instance. Implementing the Singleton Pa...