CFG parsing algorithms

CFG (Context-Free Grammar) parsing algorithms analyze sentences based on formal rules that define valid structures in a language. They systematically examine whether a string of words conforms to a grammar's rules, typically using methods like top-down or bottom-up parsing. Top-down starts from the highest-level rule and breaks it down, while bottom-up builds from individual words upward to see if they form valid phrases. These algorithms help computers understand and process language by verifying if sentences follow the correct grammatical patterns, essential in tasks like language translation and syntax analysis.