ELI5: Explain Like I'm 5

Keyword extraction

Keyword extraction is the process of figuring out what words are most important in a document or text. It helps you to find the words that best describe the document as a whole, and what are the main topics it is about. To figure this out, a computer looks at all the words in the text, tries to figure out which ones are most important, and then picks the best ones as the keywords.