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What is LSI and does Google use it?

     
2:18 pm on Jul 17, 2017 (gmt 0)

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Hi,
I'm a new one here.
I would like to know something about LSI? What is it in short? Is Google use it? Do you have any sources about that?
8:15 pm on July 17, 2017 (gmt 0)

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Do you mean Latent semantic analysis LSA? If so try Wikipedia for an overview.
8:15 am on July 18, 2017 (gmt 0)

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I mean LSI - Latent Semantic Indexing
I know there is an articile on Wiki, but I would like to know something more about that. On Wiki is not the answer for my question: Does Google use it? Is anyone who know sth about that?
8:51 am on July 18, 2017 (gmt 0)

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Hi a1245 and welcome to WebmasterWorld [webmasterworld.com]
11:58 am on July 18, 2017 (gmt 0)

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LSI - Latent Semantic Indexing. This is one of the Google algorithm to find most relevant page when someone search on Google. Actually with this type of indexing Google throws SERP as per probable User intention behind search query like when someone search "PreSchool" on Google they understand Preschool types, Preschools news, Preschool local establishment and so on.

Implementation part - While writing any content try to use variation of same keywords which can help website to rank for multiple keywords.
12:04 pm on July 18, 2017 (gmt 0)

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Hi sudipsuvo and welcome to WebmasterWorld [webmasterworld.com]
12:16 pm on July 18, 2017 (gmt 0)

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So Google use LSI, right? Or maybe something similar?
I think the second option is more probable.
We can see in search results effects of using LSI (for example: searching 'car' we will get links to pages about translating this word, renting cars, but also pages about Mercedes Benz or any POPULAR cars, so pages semantic connected), but it is not only showing sites semantic related.
12:33 pm on July 18, 2017 (gmt 0)

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You mean like RankBrain? [en.wikipedia.org]

And Hummingbird [en.wikipedia.org]

LSI-like maths are probably a component of each of those.
1:11 pm on July 18, 2017 (gmt 0)

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Something like that...
Thank everyone for answers ;)
But if someone would like to add someting...do not be shy! I will appreciate that ;)
I would like to write some kind of an article about "Does Google use LSI?". I would like to make text, which would in detail describe that question
1:12 pm on July 18, 2017 (gmt 0)

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Any your answers could only help me ;)
2:03 pm on July 18, 2017 (gmt 0)

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Yeah, you're not going to get responses here that will let you write an authoritative article.

If you're looking for some actual hard information, check their patents.

If you are looking for soft information, well, you could research those algo components. Basically, you are going to be spinning others' existing articles, as the implication of your questions is that you are not an authority. As a community, we tend not to be well disposed to people spinning articles, either in the effectiveness, or the ethics.
4:24 pm on July 25, 2017 (gmt 0)

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Latent Semantic Indexing (LSI) is a sophisticated method that recognizes the interrelation between concepts in page content, making a filter for recognizing valuable content. LSI keywords are those related to the title of your page. To my knowledge, Google doesnít use it since it doesnít contain any patent filed based on LSI.
 

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