Aho-Corasick Algorithm

The Aho-Corasick algorithm is a powerful method used for quickly searching multiple keywords in a text. It builds a tree structure, called a trie, from the keywords, which helps narrow down possible matches as it reads through the text. When a match is found, it can continue searching without restarting for every individual keyword. This efficiency makes it particularly useful in applications such as spam filtering, DNA sequencing, and searching through large databases, as it can handle many search patterns at once while still operating quickly.