Building a fraud investigation agent on TigerGraph for Hacker House Goa
For the TigerGraph Hacker House Goa challenge we built an agent that works fraud alerts the way an analyst would. It looks up the card's history, ch…
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Building an Agentic Fraud Investigation System with TigerGraph, LangGraph & MCP
TL;DR : We built a 9-node LangGraph agent that investigates fraud cases end-to-end. It uses TigerGraph Community Edition as the knowledge graph subs…
Eight window-function tricks beyond LAG and ROW_NUMBER
The first post in this series got more reader response than I expected. The comments were full of practical follow-up questions and a few good corre…
Six SQL patterns I use to catch transaction fraud
Quick disclaimer: I do data work on a program-integrity team. Examples below use generic transaction tables and made-up scenarios. Nothing here come…