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Agentic RAG Explained: How AI Agents Search, Evaluate, and Refine Knowledge
From static retrieval pipelines to intelligent, self-correcting AI systems

Nagesh Singh Chauhan
2 days ago18 min read


Proximal Policy Optimization(PPO)
Proximal Policy Optimization (PPO) was introduced in 2017 for simulated robots and Atari games, it became the optimization engine behind reinforcement learning from human feedback (RLHF) for large language models.

Nagesh Singh Chauhan
6 days ago16 min read


Designing Agentic AI Systems: 20 Patterns That Matter
Designing Agentic AI Systems: 20 Patterns That Matter

Nagesh Singh Chauhan
Oct 413 min read


Building the Brain of a Robot: A Deep Dive into Physical AI
Building the Brain of a Robot: A Deep Dive into Physical AI

Nagesh Singh Chauhan
Oct 316 min read


Beyond Embeddings: How VectorLess RAG Finds Its Way Through Long Documents
A practical guide to how hierarchical document trees and LLM-guided navigation find precise evidence in long documents—without relying on chunk embeddings or vector search.

Nagesh Singh Chauhan
Sep 2710 min read


Deep Agents Demystified: The Architecture of Complex AI
A practical deep dive into planning, subagents, context engineering, memory, tools, and autonomous execution.

Nagesh Singh Chauhan
Sep 2617 min read


World Models: The Next Frontier of Artificial Intelligence
How AI is evolving from predicting patterns to understanding, simulating, and acting in the world.

Nagesh Singh Chauhan
Sep 1913 min read


Self-Improving AI Agents: Building Agents That Learn From Experience
From agents that simply act to agents that learn, adapt, and continuously improve from their own experience.

Nagesh Singh Chauhan
Sep 1811 min read


Build a Multi-Agent AI Personal Learning Assistant Using LangGraph
How eight specialised AI agents, two LangGraph state machines, a Tavily MCP search pipeline, and the 40-year-old SM-2 memory algorithm combine to create a tutor that gets smarter every session.

Nagesh Singh Chauhan
Jun 2610 min read


How I Built Voyager — A Multi-Agent Architecture Using LangGraph
How I Built Voyager — A Multi-Agent Architecture Using LangGraph

Nagesh Singh Chauhan
Jun 238 min read


Artificial Intelligence in Nuclear Physics
How machine learning, deep neural networks, and probabilistic Artificial Intelligence are reshaping our understanding of the atomic nucleus — from fusion reactors to particle accelerators.

Nagesh Singh Chauhan
Jun 208 min read


The Anatomy of an Agent Harness
At its core, an agent harness is the execution runtime that governs how an AI agent behaves across an entire lifecycle of interaction

Nagesh Singh Chauhan
Jun 66 min read
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