Samuel Chan Courses

Understanding Embeddings in Large Language Models - LlamaIndex and Chroma DB

Explore embeddings in LLMs, their role in AI-powered tools, and practical applications using LlamaIndex and Chroma db. Gain insights into representing data for advanced language processing.

• YouTube
• 29 minutes
• Self-Paced
• Free Video

LangChain and OpenAI for Querying Databases and CSV Files with Natural Language

Learn to query databases and CSV files using natural language with LangChain and OpenAI, converting English to SQL or pandas commands for efficient data retrieval and analysis.

• YouTube
• 20 minutes
• Self-Paced
• Free Video

LangChain and OpenAI Tutorial - Building a Q&A System with Custom Text Data

Learn to build an AI-powered Q&A system using LangChain and OpenAI. Explore text embeddings, vector stores, and agent chaining to create a custom question-answering tool with your own data.

• YouTube
• 20 minutes
• Self-Paced
• Free Video

TorchVision Quick Start - Building an Image Classifier in 10 Minutes

Build an image classifier for orangutans and komodo dragons using PyTorch's torchvision library and a pretrained ResNet model. Learn to leverage pre-trained models for quick and effective computer vision tasks.

• YouTube
• 17 minutes
• Self-Paced
• Free Video

Python's Cache and LRU Cache Decorators - Optimizing Computations

Explore Python's @cache and lru_cache decorators to optimize performance, reduce computations, and save resources with practical examples and comparisons.

• YouTube
• 18 minutes
• Self-Paced
• Free Video

Use Less For-Loops, Use More Vectorization - Improving Code Efficiency

Optimize Python code by replacing for-loops with vectorization techniques, improving efficiency and speed while maintaining readability and functionality.

• YouTube
• 19 minutes
• Self-Paced
• Free Video

PyTorch's Computational Graph and Torchviz Visualization Tutorial

Learn to build neural networks, understand PyTorch's computational graph, and visualize deep learning networks using PyTorchViz in this comprehensive tutorial.

• YouTube
• 24 minutes
• Self-Paced
• Free Video

Practical Introduction to Python's Subprocess Module for Developer Workflow Automation

Learn to automate developer workflows using Python's subprocess module. Build a CLI tool to create directories, initialize Git, set up virtual environments, and manage tasks efficiently.

• YouTube
• 53 minutes
• Self-Paced
• Free Video

Steganography Explanation and Code Examples - Least Significant Bit Replacement

Explore steganography and the Least Significant Bit algorithm for hiding messages in digital images, with Python code examples for embedding and extracting secret data.

• YouTube
• 24 minutes
• Self-Paced
• Free Video

Making a CV with R and RStudio: Professional and Semantic

Learn to create professional CVs using R and RStudio with the vitae package. Explore 6 templates and leverage markdown for customization in this efficient, programmer-friendly approach to resume building.

• YouTube
• 34 minutes
• Self-Paced
• Free Video

Python Unit Testing and Package Submission - Build with Python 5

Learn Python unit testing techniques, mock print outputs, and update PyPI packages to enhance your development skills and package management abilities.

• YouTube
• 1 hour 2 minutes
• Self-Paced
• Free Video

Creating Rolling Sum Grouped by ISO Weeks Using Python - No Pandas Required

Learn to implement weekly rolling sums using Python's standard library, exploring itertools' groupby, enumerate, and isocalendar. Enhance your data manipulation skills without relying on external libraries like pandas.

• YouTube
• 29 minutes
• Self-Paced
• Free Video

Python Code Refactoring - Writing Modular Functions

Explore techniques for refactoring monolithic Python functions into smaller, modular, and testable units. Learn mental models for writing maintainable and predictable code.

• YouTube
• 26 minutes
• Self-Paced
• Free Video

Smart Contract Programming - Deploying to Rinkeby Testnet and Validating on Etherscan - Part 7

Deploy smart contracts to Rinkeby testnet, set up brownie-config, and validate on Etherscan. Learn to use test ETH from faucets and enable web3 wallet transactions with your contract.

• YouTube
• 54 minutes
• Self-Paced
• Free Video

Building and Publishing a Python Package - How to Distribute on PyPI

Learn to create, structure, and publish a Python package on PyPI, covering setup.py, distribution types, and the upload process in under 15 minutes.

• YouTube
• 18 minutes
• Self-Paced
• Free Video