What is Latent Semantic Indexing (LSI)?

• Latent semantic indexing (LSI) is an indexing and retrieval method to identify patterns in the relationships between the terms and concepts contained in an unstructured collection of text. 

• LSI or Latent Semantic Indexing is an alternative term for synonyms or similar words used by Google. 

• LSI is based on the principle that words that are used in the same contexts tend to have similar meanings. 

• A key feature of LSI is its ability to extract the conceptual content of a body of text by establishing associations between those terms that occur in similar contexts. 

• Using semantic keywords along with main keywords, significantly boosts rankings. 

• It helps Google in knowing the relationships between the elements of your blog post and understand your content. Hence, it boosts rankings. 

• Rather than being a victim of keyword stuffing, semantic keywords should be used intelligently.

You can see more about LSI Indexing from here

Where to Include LSI Keywords?

• LSI and other keywords follow some common rules.

• You can include LSI keywords at any of these following locations:

• Title tag.

• Header tags. 

• Permalinks.

• Anchor texts.

• Beginning paragraph.

• Ending paragraph.

Suppose, you are writing an article on "Complete Guide to Recover From Google Panda Update", then your primary keyword should be "Recover from Google Panda Update", whereas LSI keywords should be "Rescue your site from Google Panda Update, Recover from Google Panda effect, etc."

• After you write an article on this topic, make sure you include related terms like effect, SEO, Penguin Update and so on.