Everything You Need to Know about LSI Keywords

LSI (Latent Semantic Indexing) keywords are words and phrases that Google sees as semantically-related to a topic. In most cases LSI keywords are synonyms to the word searched for. Ahrefs’ Joshua Hardwick has shared a comprehensive article on LSI keywords. Hardwick says, “Latent Semantic Indexing (LSI), or Latent Semantic Analysis (LSA), is a natural-language processing technique developed in the 1980s. Unfortunately, unless you’re familiar with mathematical concepts like eigenvalues, vectors, and single value decomposition, the technology itself isn’t... [...]