Dive into Deep learning 2025 Generative AI,C++,GPT & more

Explore Google Colab as an online Python notebook environment that runs code in the cloud, supports collaboration, sharing, and optional GPU clusters on a pay-as-you-go model.

Learn to use Google Colab to create and manage notebooks, import from Drive or GitHub, run Python code with shift+enter, organize with cells, customize themes, and share notebooks.

Explore bash commands in Google Colab, run ls and pwd, create directories, install numpy, clone GitHub repos, and download resources to leverage pre installed libraries for deep learning research.

Explore Python fundamentals from basics to intermediate to support neural networks with PyTorch, learn in Google Colab, and see Python's applications in AI, machine learning, data analysis, and web scraping.

Explore how to implement if-else logic in Python, using variables, comparisons, and print outputs, including elif chains, coupons, budgets, and comments.

Learn Python loops by crafting for loops with range, while loops, and break to print sequences, manage iterations, and prevent infinite loops in notebooks.

Learn to capture user input in Python with input() and int() for type casting, and build a basic calculator that performs addition, subtraction, multiplication, and division using if-else logic.

Explore Python data collections—lists, sets, tuples, and dictionaries—covering zero-based indexing, mutability, and dictionary keys and values, with loops and datasets as practice for future functions and classes.

Explore how to define classes as containers in Python, use an init function and self to initialize attributes like name, age, and gender, and access data via class functions.

Explore polymorphism through Python inheritance and method overriding, showing how a child class overrides a parent function with bird and sparrow fly methods.

Explains abstraction and encapsulation in python, showing how double-underscore private data protects information and how getters enforce safe access within object-oriented design.

Explore numpy, a major machine learning and deep learning library that enables multi-dimensional arrays, fast vectorized operations, and serves as a PyTorch derivative for high dimensional data.

Compare NumPy arrays and Python lists, learn why NumPy is faster due to fixed data types, smaller memory usage, and contiguous memory, and prepare for NumPy basics in deep learning.

learn how to access and modify elements in numpy arrays, compute total bytes and shapes, and use 2d and 3d indexing and slicing to select rows, columns, and blocks.

Explore numpy array creation and manipulation, including zeros, ones, full, random, repeat, identity, and copy, with notes on shaping, one-hot encoding, and neural network weight initialization.

Explore basic NumPy operations on one-dimensional arrays, including addition, subtraction, multiplication, and division, and learn matrix multiplication rules and the role of linear algebra in deep learning.

Save and load a numpy array to store and retrieve data, shapes, and metrics using numpy.save and numpy.load, with an example 2x3 array and .npv files.

Learn how pandas loads data from CSV files, spreadsheets, and databases into data frames, then cleans, pre-processes, analyzes, and visualizes time series data and statistics.

Master the basics of pandas by loading CSV data, importing pandas as pd, and using shape, head, tail, size, and describe to reveal mean, standard deviation, min, and max.

Explore pandas basics in Google Colab, including viewing data frame columns, handling nan values with fill, and using iloc for indexing to enable basic data analysis and simple charts.

Explore practical pandas techniques, comparing log and iloc versus loc indexing, selecting data by column name or position, and converting data frames to numpy arrays for model input.

Learn how to create custom Pandas dataframes from dictionaries, handle missing values with dropna and fillna, drop duplicates, modify values with iloc, and understand NumPy-backed dataframe copying.

Learn how to rename columns, drop unnecessary ones, and concatenate data frames in pandas, and visualize data with simple plots, then save results as csv.

Dive into PyTorch as the core deep learning library, covering data loading, preprocessing, training, exporting, deployment, and multi-GPU support to build neural networks, CNNs, RNNs, and generative AI.

Explore the basics of PyTorch in Colab, importing torch, creating tensors, and understanding scalar, vector, and matrix shapes while appreciating GPU acceleration for deep learning.

Explore PyTorch core operations by creating predefined tensors and matrices with torch.randn, torch.zeros, torch.ones, and torch.rand; learn to fetch values with tensor.item.

Explore matrix multiplication in PyTorch, learn the rules (columns of the first equal rows of the second), and perform multiplications with the @ operator, including examples like 3x4 and 4x4.

Explore how backpropagation under torch autograd drives neural network training, showing loss versus weight graphs, gradient descent updates, and learning rate effects on weight optimization.

Explore backpropagation and gradient descent to update neural network weights and minimize loss, revealing how positive and negative gradients drive weight changes toward local minima with PyTorch and Adam optimizer.

Explore how gradient descent optimizes neural networks using PyTorch autograd for automatic differentiation, performing forward and backward propagation to update weights via an optimizer and minimize loss.

Explore predicting a score through a regression problem using a 10,000-row dataset with features like study hours, previous score, extracurriculars, sleep, and questions solved, via PyTorch and supervised learning.

Load a 10,000-row csv dataset with pandas, preprocess and binary-encode features, then perform a train/test split and build a from-scratch linear model in PyTorch to predict the performing index.

Check for null values and NaNs, drop duplicates, and rename columns to concise labels to prepare the real Open Dataset data (10,000 rows) for model training.

Explore how a correlation matrix reveals relationships among data factors, using color intensity and a diagonal pattern to show positive, negative, and zero correlations for poverty, stroke, and breast cancer.

Convert yes/no data to numeric form using sklearn's preprocessing and label encoder, turning into zeros and ones for deep learning models; includes city example and fit_transform.

Pre-process the student dataset from csv, convert features and targets to torch tensors, and use a custom dataset with a dataloader to feed 32-sized training and testing batches.

Structure the data in a dataset class, perform preprocessing and encoding, scale features, split train and test, and use a data loader to batch 32 tensors for GPU training.

Import mean squared error loss and the Adam optimizer, run a 5-epoch training loop with a 32-batch data loader, perform forward and backward passes, update weights, and monitor loss.

Explore training loop setup with 100 epochs, zeroing gradients, monitoring loss, and plotting training progress using matplotlib, plus preparing for test accuracy evaluation.

Test a model on the test data and compute test loss. Compare it with training loss, then switch to evaluation mode and use test loader.

The lecture demonstrates predicting scores with a trained model using random test samples, switching to evaluation mode, and inverting normalized predictions with a minmax scaler to compare with actual values.

The sigmoid activation function converts final outputs to a 0–1 probability for binary classification with a 0.5 threshold; it is differentiable but can suffer vanishing gradients during backpropagation.

Explore the tanh activation function, its -1 to 1 range, and how it addresses vanishing gradients in hidden layers, unlike sigmoid, before ReLU becomes preferred in deep learning.

Explore the ReLU activation function, which outputs zero for negatives and the input for positives, with a derivative of one for positives, making hidden layers fast and avoiding vanishing gradients.

Learn how leaky ReLU activation preserves small negative values with a tiny slope (alpha) to prevent dead neurons and vanishing gradients in hidden layers, while keeping positive values unchanged.

Softmax activation converts final-layer logits into probabilities for multi-class classification. It supports cross-entropy loss by providing probability outputs for each class.

Explore mean squared error loss, a key regression cost function that measures the error between actual continuous values and predictions by averaging the squared differences, noting its sensitivity to outliers.

Explore mean absolute error (L1 loss), contrasting it with mean squared error through the absolute value difference, highlighting robustness to outliers and easier interpretation despite non-differentiability.

Apply cross entropy loss to multi-class classification, using softmax probabilities and logits to compare predicted probabilities with one-hot true labels; distinguish binary and sparse cross entropy.

Discover how convolutional neural networks convert images into numerical pixel values and PyTorch tensors, using grayscale and RGB channels for cat and dog classification.

Learn how pooling in convolutional operations reduces feature maps by half, selecting dominant features with max pooling and showing how average pooling differs, to improve robustness to rotated images.