What is Latent Semantic Analysis

seolinks85 · 07-30-2011, 07:59 AM

What is Latent Semantic Analysis?

addisgil · 08-11-2011, 09:18 AM

LSA is an indexing and retrieval method to identify patterns in the relationships between the terms and concepts contained in an unstructured collection of text. 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. LSI is also used to perform automated document categorization.

happygarg · 11-15-2011, 08:35 AM

Source: What are LSI Keywords? What is Latent Semantic Indexing | Best SEO Plugins Reviewed
"Latent Semantic Indexing is a newer computer-driven method in which applications such as search engines use a mathematical algorithm that removes unimportant words (as, is, the, to, my etc) and compares only the most important words in your web page content to other web pages to determine their similarity."

Shweta_Gurur · 11-22-2011, 06:45 AM

Latent Semantic Analysis (LSA) is a mathematical method that tries to bring out latent relationships within a collection of documents. Rather than looking at each document isolated from the others it looks at all the documents as a whole and the terms within them to identify relationships.

An example of LSA:
Using a search engine search for “sand“.

Documents are returned which do not contain the search term “sand” but contains terms like “beach”.

LSA has identified a latent relationship, “sand” is semantically close to “beach”.

wendy · 02-09-2012, 06:36 AM

Latent Semantic Indexing is an indexing and retrieval method that uses a mathematical technique called Singular Value Decomposition to identify patterns in the relationships between the terms and concepts contained in an unstructured collection of text.

ghazia · 02-09-2012, 11:25 AM

LSA is an algorithm or methodology used by Google. It gives relevant result for users based on their queries. For example if the user's query is "web development" Google can give results from sites containing "website development" in their documents.