What does the term LSI mean?

[nusaiba130]

LSI is a singular value decomposition of the document matrix terms of individual documents for a specific search phrase (or more precisely, a query) with subsequent determination of the weight of terms and phrases, observing a strict dependence on their popularity in documents.

That was the scientific definition of the term, now in simple words: LSI are words or phrases that we use to write page content. The goal of LSI is to increase thematic proximity and relevance to the original search phrase.



A little background
Just ten to fifteen years ago, search engines determined latvia consumer email list the content of a page only by the keywords that were on it.

1030_1.png

Let me explain with a specific example: Google "saw" the keyword "buy iPhone" on the page and it associated such a page with the purchase of an iPhone. And the density of keywords on the page was also incredibly important.

1030_1.png

It's funny, but even in 2021, novice optimizers continue to demand a certain % density from copywriters for each keyword.

Yes, keyword density on a page was an important factor, and it worked. But in 2021, Google's algorithms have become much smarter. They no longer take into account phrase density, as they used to. Today, Google's goal, as we have already found out above, is to identify the main topic of a page . Adding keys to a page in direct or diluted entry is no longer as effective.