Saikat Sarkar Blog

Insights on AI, RPA, and Digital Transformation

Building Retrieval-Augmented Generation (RAG) with Amazon Bedrock

Building Retrieval-Augmented Generation (RAG) with Amazon Bedrock

Learn how to implement Retrieval-Augmented Generation (RAG) using Amazon Bedrock with Python, embeddings, and vector databases for enterprise-grade AI search.

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Tokenization and Vectorization in Deep Learning

Tokenization and Vectorization in Deep Learning

Learn how tokenization and vectorization transform text into numerical representations for deep learning models. Includes Python examples with Keras, Word2Vec, and BERT.

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Text-to-SQL with Vanna.AI and Python

Text-to-SQL with Vanna.AI and Python

Learn how to use Vanna.AI with Python to convert natural language questions into SQL queries and run them against your database. Step-by-step guide with code examples, setup, and use cases.

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LLaMA Explained — Meta’s Open-Source Large Language Model

LLaMA Explained — Meta’s Open-Source Large Language Model

Understand LLaMA, Meta’s open-source large language model. Learn its versions, features, and how to use LLaMA in Python with Hugging Face.

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Vector Databases — What they are and how they differ from SQL/NoSQL

Vector Databases — What they are and how they differ from SQL/NoSQL

Learn what vector databases are, why they power semantic search and RAG, how they differ from SQL/NoSQL, example tools, and code snippets to get started with embeddings + ANN search.

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How to Deploy ML/AI Models in AWS

How to Deploy ML/AI Models in AWS

Step-by-step guide to deploying ML/AI models in AWS using SageMaker, Lambda, ECS, EC2, and more with Python examples.

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AI + Space Systems: The Future of Modeling & Simulation

AI + Space Systems: The Future of Modeling & Simulation

How AI is transforming modeling & simulation for space systems — trajectory optimisation, anomaly detection, constellation management and more. Includes Python simulation and RL examples.

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Agentic AI — Real-World Use Cases Across Industries

Agentic AI — Real-World Use Cases Across Industries

Explore practical use cases of Agentic AI across business, finance, healthcare, customer support, supply chain, and personal productivity.

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Vision Transformers (ViT) — Explained + Sample Code

Vision Transformers (ViT) — Explained + Sample Code

Introduction to Vision Transformers (ViT) with clear explanation and runnable Python code samples (PyTorch).

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The Hottest AI Trends in 2025

The Hottest AI Trends in 2025

Explore the top AI trends in 2025: Generative AI, Agentic AI, RAG with knowledge graphs, synthetic data, multimodal models, AI governance and more.

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How to Build a Data Lake on AWS — Step by Step Guide

How to Build a Data Lake on AWS — Step by Step Guide

Learn how to design and build a scalable Data Lake on AWS using S3, Glue, Athena, Redshift, QuickSight, and Lake Formation. Includes architecture, workflow, and best practices.

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Fraud Analytics in Credit Card Transactions with AI and Python

Fraud Analytics in Credit Card Transactions with AI and Python

Learn how to detect fraud in credit card transactions using AI and Python. Covers data, features, supervised & unsupervised models, code examples, explainability, and deployment best practices.

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Model Performance Metrics — How to Choose the Right One

Model Performance Metrics — How to Choose the Right One

A practical guide to model evaluation metrics: classification, regression, ranking and business metrics — when to use each, pros and cons.

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Agentic AI for Trading — Prototype & Demo (LangChain + Broker API)

Agentic AI for Trading — Prototype & Demo (LangChain + Broker API)

How to prototype an agentic AI system for stock trading: architecture, code demo (LangChain + embeddings + broker API), risk controls and deployment steps.

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Solving Sudoku with Python — Backtracking Explained

Solving Sudoku with Python — Backtracking Explained

A practical walkthrough: implement a Sudoku solver in Python using backtracking (plus simple optimizations). Includes runnable code and example.

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Monte Carlo Simulation for Option Pricing

Monte Carlo Simulation for Option Pricing

Monte Carlo Simulation for Option Pricing explained with Python example and chart visualization.

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GenAI in FinTech – Smart POS Payment Assistant

GenAI in FinTech – Smart POS Payment Assistant

Use case of Generative AI in FinTech: AI-powered Smart Payment Assistant at POS for digital payments.

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Semantic Search with Python

Semantic Search with Python

What is Semantic Search, how it works, and a Python example with Sentence-Transformers and FAISS.

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Integrating Semantic Search with GPT

Integrating Semantic Search with GPT

How to integrate semantic search with Generative AI (GPT) to build chat-with-your-documents systems using Python and LangChain.

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