Urgent.News

What's breaking now, across thousands of outlets.

More in Tech

Building Your Own Sovereign CVE Watch: An OpenCVE Field Report

How many times this week have you learned about a critical vulnerability from a vendor newsletter, a Twitter thread, or a Slack message from a colleague—hours after it went public?

  • Author built OpenCVE instance on homelab with 34 Docker containers
  • Demonstrated control problem in vulnerability perception
  • Outsourcing CVE intelligence outsources threat model

XGBoost Explained: From Gradient Boosting to Weighted Quantile Sketch

XGBoost Introduction: XGBoost XGBoost is a tree-based algorithm. It is a variant of Gradient Boosting which is one of the highest-scaled versions of it.

  • XGBoost is a faster tree-based algorithm than traditional Gradient Boosting.
  • It optimizes an objective function using 2nd-order Taylor series expansion.

Your RAG Answers From 62% of Your Corpus and Won't Tell You

Every retrieval system I have ever deployed has one property in common with every retrieval system you have ever deployed: it will answer. It will always answer.

  • Self-hosted knowledge base indexed 1,890 documents, coverage at 62%
  • Polling and hourly reconciliation implemented to detect file changes
  • Coverage reached 1,890 out of 1,890 documents after fixes

More from Friday 28 August →