Rob Kerr's Blog

Secure Microsoft Fabric with Private Link (Workspace-Level Setup + Architecture)

This post is a walk-through of building a Fabric Tenant that has a private-link protected workspace with Lakehouse data, and a **non** private-link workspace with a Semantic Model and Power BI reports.

Building a GraphRAG App: Concepts, Code, and Demo

In this post we’re going to talk about GraphRag — one of the techniques we can use to add knowledge to the context of a large language model prompt. We'll go through the concepts, theory, and end with a video walk-through of a fully functional full-stack GraphRAG application.

Vectorizing Images with LLMs

In this video, we walk through how to build a complete end-to-end image vectorization and similarity search system using modern AI tools, multimodal LLMs, and GPU-powered infrastructure.

From Text to SQL: Fine-Tuning Phi-4-Mini-Instruct with LoRA and PyTorch (Deep Dive)

In this deep-dive video, I’ll walk through the full workflow of LoRA fine-tuning the Phi-4-Mini-Instruct model to improve natural-language-to-SQL accuracy. The demonstration runs on an NVIDIA DGX Spark, but the methods apply to any CUDA-based environment.

Build Smarter AI Systems: 3 Agent Patterns You Can Implement Today (with Code)

In this video, we break down the three types of Agentic AI patterns—Chat Agents, Workflow Agents, and Autonomous Agents—and show you how to implement each one using Microsoft’s Azure AI Foundry Agent Framework.

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