Selva Prabhakaran

Selva is an experienced Data Scientist and leader, specializing in executing AI projects for large companies. Selva started machinelearningplus to make Data Science / ML / AI accessible to everyone. The website enjoys 4 Million+ readership. His courses, lessons, and videos are loved by hundreds of thousands of students and practitioners.

183

Articles

Topics

Years Active

machine learning + Project — Build a Document Processing Agent with Multi-Modal Inputs machinelearningplus.com

29 min

Gen AI

Project — Build a Document Processing Agent with Multi-Modal Inputs

Build a LangGraph agent that processes PDFs, images, and text documents — extracting information, cross-referencing sources, and generating structured reports.

AI agents Document Processing GPT-4o Vision

machine learning + Project — Build a Customer Support Agent with Escalation Workflows in LangGraph machinelearningplus.com

29 min

Gen AI

Project — Build a Customer Support Agent with Escalation Workflows in LangGraph

Build a production-ready customer support agent in LangGraph that handles queries, searches a knowledge base, escalates to humans, and logs interactions.

AI agents conditional routing customer support agent

machine learning + Build an Autonomous Web Scraping Pipeline with LangGraph machinelearningplus.com

27 min

Gen AI

Build an Autonomous Web Scraping Pipeline with LangGraph

Build a LangGraph pipeline that autonomously scrapes websites, extracts structured data, handles pagination and errors, and produces analytical summaries.

AI agents BeautifulSoup LangGraph

machine learning + Project — Build a Multi-Agent Research Assistant in LangGraph machinelearningplus.com

27 min

Gen AI

Project — Build a Multi-Agent Research Assistant in LangGraph

Build a multi-agent research system in LangGraph where a planner, researcher, and writer collaborate to produce comprehensive research reports from web sources.

AI agents LangChain LangGraph

machine learning + Project — Build a Full-Stack AI Application with LangGraph and FastAPI machinelearningplus.com

24 min

Gen AI

Project — Build a Full-Stack AI Application with LangGraph and FastAPI

Build a complete AI application from scratch — a FastAPI backend powered by a LangGraph agent with streaming, persistence, auth, and a chat frontend.

AI agents FastAPI Full-Stack AI

machine learning + Structured Output and Self-Correcting Agents in LangGraph machinelearningplus.com

35 min

Gen AI

Structured Output and Self-Correcting Agents in LangGraph

Force LangGraph agents to produce validated structured output using Pydantic models, with automatic retry and self-correction on validation failures.

AI agents LangGraph Pydantic

machine learning + Build a Code Generation and Execution Agent with LangGraph machinelearningplus.com

28 min

Gen AI

Build a Code Generation and Execution Agent with LangGraph

Build a LangGraph agent that writes Python code, executes it in a sandbox, inspects the output, and iterates until the code works correctly.

AI agents Code Execution Code Generation

machine learning + LangGraph Observability and Debugging — LangSmith Tracing in Practice machinelearningplus.com

18 min

Gen AI

LangGraph Observability and Debugging — LangSmith Tracing in Practice

Trace, debug, and monitor your LangGraph agents in production using LangSmith — visualize graph execution, inspect state transitions, and identify failures.

agent observability Debugging LangGraph

machine learning + LangGraph Platform — Deploying Agents as APIs with LangGraph Server machinelearningplus.com

22 min

Gen AI

LangGraph Platform — Deploying Agents as APIs with LangGraph Server

Deploy your LangGraph agents as production APIs using LangGraph Platform — covering LangGraph Server, the SDK client, and cloud deployment options.

AI agents API Deployment LangChain

machine learning + Project — Build a SQL Database Agent That Answers Business Questions machinelearningplus.com

36 min

Gen AI

Project — Build a SQL Database Agent That Answers Business Questions

Build a LangGraph agent that converts natural language questions to SQL, queries your database, handles errors, and presents results in clear summaries.

AI agents LangChain LangGraph

machine learning + Building a RAG Agent with LangGraph — Retrieval-Augmented Generation Done Right machinelearningplus.com

31 min

Gen AI

Building a RAG Agent with LangGraph — Retrieval-Augmented Generation Done Right

Build a full retrieval-augmented generation agent in LangGraph that decides when to retrieve, evaluates relevance, and synthesizes answers from your documents.

Agentic RAG ChromaDB LangChain

machine learning + Memory Systems in LangGraph — Short-Term, Long-Term, and Conversation Memory machinelearningplus.com

25 min

Gen AI

Memory Systems in LangGraph — Short-Term, Long-Term, and Conversation Memory

Implement different memory architectures in LangGraph — windowed message history, summary memory, and persistent long-term memory across sessions.

Agentic AI Conversational AI LangChain

machine learning + Map-Reduce and Parallel Execution in LangGraph machinelearningplus.com

20 min

Gen AI

Map-Reduce and Parallel Execution in LangGraph

Run graph branches in parallel using LangGraph's Send API and map-reduce pattern to process multiple items concurrently and aggregate results.

AI agents LangGraph Map-Reduce

machine learning + Human-in-the-Loop — Adding Approval Steps and User Input Mid-Graph machinelearningplus.com

27 min

Gen AI

Human-in-the-Loop — Adding Approval Steps and User Input Mid-Graph

Build LangGraph workflows that pause for human approval, accept user corrections, and resume execution -- essential for safe, trustworthy AI agents.

AI agent approval checkpointer Command resume

machine learning + Streaming Responses — Real-Time Output from LangGraph Agents machinelearningplus.com

26 min

Gen AI

Streaming Responses — Real-Time Output from LangGraph Agents

Implement token-level and event-level streaming in LangGraph to deliver real-time responses in chat interfaces and production applications.

LangGraph LLM Python

machine learning + Cycles, Recursion Limits, and Controlling Agent Loops machinelearningplus.com

24 min

Gen AI

Cycles, Recursion Limits, and Controlling Agent Loops

Understand how LangGraph handles cycles in graphs, set recursion limits to prevent runaway agents, and implement graceful exit strategies.

Agent Loops AI agents GraphRecursionError

machine learning + Subgraphs in LangGraph — Composing Complex Workflows from Reusable Parts machinelearningplus.com

28 min

Gen AI

Subgraphs in LangGraph — Composing Complex Workflows from Reusable Parts

Break large LangGraph applications into modular subgraphs that can be developed, tested, and reused independently, then composed into larger systems.

AI Workflows Graph Composition LangChain

machine learning + Multi-Agent Systems — Supervisor, Swarm, and Network Architectures machinelearningplus.com

32 min

Gen AI

Multi-Agent Systems — Supervisor, Swarm, and Network Architectures

Design multi-agent systems in LangGraph using supervisor, swarm, and network topologies where specialized agents collaborate to solve complex tasks.

AI agents LangChain LangGraph

machine learning + Persistence and Checkpointing — Saving and Resuming Graph State machinelearningplus.com

23 min

Gen AI

Persistence and Checkpointing — Saving and Resuming Graph State

Add persistence to your LangGraph agents using checkpointers so conversations survive restarts and long-running workflows can resume from any point.

AI agents Checkpointing LangChain

machine learning + Error Handling, Retries, and Fallback Strategies in LangGraph machinelearningplus.com

27 min

Gen AI

Error Handling, Retries, and Fallback Strategies in LangGraph

Build resilient LangGraph agents that handle tool failures, LLM errors, and unexpected states with retry logic, fallback paths, and graceful degradation.

AI agents error handling fallback strategies

Latest Articles

Gen AI
Project — Build a Document Processing Agent with Multi-Modal Inputs

Mar 10, 2026
Gen AI
Project — Build a Customer Support Agent with Escalation Workflows in LangGraph

Mar 10, 2026
Gen AI
Build an Autonomous Web Scraping Pipeline with LangGraph

Mar 10, 2026

Selva Prabhakaran

Project — Build a Document Processing Agent with Multi-Modal Inputs

Project — Build a Customer Support Agent with Escalation Workflows in LangGraph

Build an Autonomous Web Scraping Pipeline with LangGraph

Project — Build a Multi-Agent Research Assistant in LangGraph

Project — Build a Full-Stack AI Application with LangGraph and FastAPI

Structured Output and Self-Correcting Agents in LangGraph

Build a Code Generation and Execution Agent with LangGraph

LangGraph Observability and Debugging — LangSmith Tracing in Practice

LangGraph Platform — Deploying Agents as APIs with LangGraph Server

Project — Build a SQL Database Agent That Answers Business Questions

Building a RAG Agent with LangGraph — Retrieval-Augmented Generation Done Right

Memory Systems in LangGraph — Short-Term, Long-Term, and Conversation Memory

Map-Reduce and Parallel Execution in LangGraph

Human-in-the-Loop — Adding Approval Steps and User Input Mid-Graph

Streaming Responses — Real-Time Output from LangGraph Agents

Cycles, Recursion Limits, and Controlling Agent Loops

Subgraphs in LangGraph — Composing Complex Workflows from Reusable Parts

Multi-Agent Systems — Supervisor, Swarm, and Network Architectures

Persistence and Checkpointing — Saving and Resuming Graph State

Error Handling, Retries, and Fallback Strategies in LangGraph

Project — Build a Document Processing Agent with Multi-Modal Inputs

Project — Build a Customer Support Agent with Escalation Workflows in LangGraph

Build an Autonomous Web Scraping Pipeline with LangGraph

Machine Learning A-Z™: Hands-On Python & R In Data Science

Free Sample Videos:

Selva Prabhakaran

Latest Articles

Python.SQL. NumPy. All free.

Machine Learning A-Z™: Hands-On Python & R In Data Science

Free Sample Videos:

Machine Learning A-Z™: Hands-On Python & R In Data Science

Machine Learning A-Z™: Hands-On Python & R In Data Science

Machine Learning A-Z™: Hands-On Python & R In Data Science

Machine Learning A-Z™: Hands-On Python & R In Data Science

Machine Learning A-Z™: Hands-On Python & R In Data Science

Python.
SQL. NumPy.
All free.