LSI Keyword
Terms that reliably appear alongside a subject because the subject implies them. The vocabulary of the topic rather than its synonyms.
Analogy Mental model
Mention apple near Jobs, phone and iOS and the engine knows which company. Mention it near sweet, red and orchard and it knows you mean fruit. The neighbours decide the meaning.
In practice What you actually do
Read the top-ranking pages and note which nouns recur across all of them, then make sure your page covers the same ground because the subject requires it. Not to match a count, to be complete. If a term is missing because you never thought of it, the page is thinner than it looks.
Where people get burned Pitfalls
The label itself is folk etymology. Google has said it does not use latent semantic indexing as such, and the tools selling LSI keyword packs are selling a story. The underlying idea, that meaning comes from context, is sound; the product is not.
This entry was written in English from the Chinese original, not machine-translated. Read the Chinese version →