How Google News Sort News By Relevance

Excuse a flippant answer, but I have to say 'poorly.' It's a hobbyhorse of mine, but GN has gotten progressively worse over the last 2 years, thanks to a mixture of SEO and slow development. Considering the legal costs of news delivery (settlements and ongoing litigation with publishers) I think more is being spent on keeping it functional than on development.

Krishna Bharat Creator of Google News Used His own fork of The Hilltop algorithm is an algorithm. I don't know it work but if you are going to create a relevance for some news site remember this quote by Mark

"A squirrel dying in your front yard may be more relevant to your interests right now than people dying in Africa."