Aho-Corasick Algorithm

29 points by abhin4v 7 hours ago on lobsters | 4 comments

novedevo | 4 hours ago

I love this algorithm. There's an optimized Rust implementation, used in the de-facto-std regex crate in some situations where the lazy DFA is less performant.

fazalmajid | an hour ago

If you are dealing with large number of patterns, e.g. firewalls, antivirus or other security appliances, it's better to use VectorScan via hyperscan-tokio-sys, based on Intel's highly optimized HyperScan library, but adding ARM64 NEON support.

ThomasAdam | 2 hours ago

I worked for a company years ago which developed a web content filter.

This was one of the main algorithms we used to scan for words, to be able to give a weighing to them, etc.

thangalin | an hour ago

One of the reasons why my Markdown editor, KeenWrite, can evaluate hundreds of R expressions in real time is thanks to the Aho-Corasick Algorithm. Robert Bor make a fantastic implementation for Java: