# Learning rate scheduler for transformers
def lr_schedule(step, d_model=512, warmup_steps=4000):
    arg1 = step ** -0.5
    arg2 = step * (warmup_steps ** -1.5)
    return (d_model ** -0.5) * min(step ** -0.5, step * warmup_steps ** -1.5)

---

### **📌 What's Next?
In **Part 5, we'll cover:
➡️ Generative Models (GANs, VAEs)
➡️ Reinforcement Learning with PyTorch
➡️ Model Optimization & Deployment
➡️ PyTorch Lightning Best Practices

#PyTorch #DeepLearning #NLP #Transformers 🚀

Practice Exercises:
1. Implement a character-level language model with LSTM
2. Add attention visualization to a sentiment analysis model
3. Build a transformer from scratch for machine translation
4. Compare teacher forcing ratios in seq2seq training
5. Implement beam search for decoder inference

# Character-level LSTM starter
class CharLSTM(nn.Module):
    def __init__(self, vocab_size, hidden_size, n_layers):
        super().__init__()
        self.embed = nn.Embedding(vocab_size, hidden_size)
        self.lstm = nn.LSTM(hidden_size, hidden_size, n_layers, batch_first=True)
        self.fc = nn.Linear(hidden_size, vocab_size)
        
    def forward(self, x, hidden=None):
        x = self.embed(x)
        out, hidden = self.lstm(x, hidden)
        return self.fc(out), hidden

🌟 Vision Transformer (ViT) Tutorial – Part 1: From CNNs to Transformers – The Revolution in Computer Vision

Let's start: https://hackmd.io/@husseinsheikho/vit-1

#VisionTransformer #ViT #DeepLearning #ComputerVision #Transformers #AI #MachineLearning #NeuralNetworks #ImageClassification #AttentionIsAllYouNeed

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🌟 Vision Transformer (ViT) Tutorial – Part 2: Implementing ViT from Scratch in PyTorch

Let's start: https://hackmd.io/@husseinsheikho/vit-2

#VisionTransformer #ViTFromScratch #PyTorch #DeepLearning #ComputerVision #Transformers #AI #MachineLearning #CodingTutorial #AttentionIsAllYouNeed

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🌟 Vision Transformer (ViT) Tutorial – Part 3: Pretraining, Transfer Learning & Real-World Applications

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#VisionTransformer #TransferLearning #HuggingFace #ImageNet #FineTuning #AI #DeepLearning #ComputerVision #Transformers #ModelZoo

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🔥 Master Vision Transformers with 65+ MCQs! 🔥

Are you preparing for AI interviews or want to test your knowledge in Vision Transformers (ViT)?

🧠 Dive into 65+ curated Multiple Choice Questions covering the fundamentals, architecture, training, and applications of ViT — all with answers!

🌐 Explore Now: https://hackmd.io/@husseinsheikho/vit-mcq

🔹 Table of Contents
Basic Concepts (Q1–Q15)
Architecture & Components (Q16–Q30)
Attention & Transformers (Q31–Q45)
Training & Optimization (Q46–Q55)
Advanced & Real-World Applications (Q56–Q65)
Answer Key & Explanations

#VisionTransformer #ViT #DeepLearning #ComputerVision #Transformers #AI #MachineLearning #MCQ #InterviewPrep

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✨ AI for Healthcare: Fine-Tuning Google’s PaliGemma 2 for Brain Tumor Detection ✨

📖 Table of Contents AI for Healthcare: Fine-Tuning Google’s PaliGemma 2 for Brain Tumor Detection Configuring Your Development Environment Setup and Imports Load the Brain Tumor Dataset Format Dataset to PaliGemma Format Display Train Image and Label COCO Format BBox to…...

🏷️ #FineTuning #ObjectDetection #PaliGemma2 #PEFT #QLoRA #Transformers #Tutorial #VisionLanguageModels

✨ Image Processing with Gemini Pro ✨

📖 Table of Contents Image Processing with Gemini Pro Getting Started with Gemini Pro: An Overview Gemini Pro Setup Integrating Google AI Python SDK with Gemini Pro Image Processing with Gemini Pro: Python Code Generation Comprehensive List of GenAI Models Compatible…...

🏷️ #ArtificialIntelligence #ChatGPT #DeepLearning #Gemini #GeminiPro #GenAI #GenerativeAI #GoogleCloud #ImageProcessing #Python #Transformers #Tutorial #VertexAI

🔥 Trending Repository: generative-ai-for-beginners

📝 Description: 21 Lessons, Get Started Building with Generative AI

🔗 Repository URL: https://github.com/microsoft/generative-ai-for-beginners

📖 Readme: https://github.com/microsoft/generative-ai-for-beginners#readme

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💻 Programming Languages: Jupyter Notebook - Python - JavaScript - TypeScript - Shell - PowerShell

🏷️ Related Topics:

#ai #azure #transformers #openai #gpt #language_model #semantic_search #dall_e #prompt_engineering #llms #generative_ai #generativeai #chatgpt #microsoft_for_beginners

==================================
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🔥 Trending Repository: transformerlab-app

📝 Description: Open Source Application for Advanced LLM + Diffusion Engineering: interact, train, fine-tune, and evaluate large language models on your own computer.

🔗 Repository URL: https://github.com/transformerlab/transformerlab-app

🌐 Website: https://transformerlab.ai/

📖 Readme: https://github.com/transformerlab/transformerlab-app#readme

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#electron #transformers #llama #lora #diffusion #mlx #diffusion_models #llms #stability_diffusion #rlhf

==================================
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📌 How Relevance Models Foreshadowed Transformers for NLP

🗂 Category: MACHINE LEARNING

🕒 Date: 2025-11-20 | ⏱️ Read time: 19 min read

The revolutionary attention mechanism at the heart of modern transformers and LLMs has a surprising history. This article traces its lineage back to "relevance models" from the field of information retrieval. It explores how these earlier models, designed to weigh the importance of terms, laid the conceptual groundwork for the attention mechanism that powers today's most advanced NLP. This historical perspective highlights how today's breakthroughs are built upon foundational concepts, reminding us that innovation often stands on the shoulders of giants.

#NLP #Transformers #LLM #AttentionMechanism #AIHistory