Keyword Extraction

This chapter is concerned with the process of extracting keywords from a text. In Chap. 18 , we studied the process of classifying a word into a category as an instance of word mining, and although keyword extraction is interpreted into a kind of word classification, we need to distinguish them from each other. The process of keyword extraction is to index a text into words, each word is classified into keyword or non-keyword, and words that are classified into keyword are extracted externally. In addition to keyword extraction, we will study the following three topics: generative AI, LLM (large language modeling), and ChatGPT, as current trends. This chapter is intended to describe keyword extraction and the three popular topics.