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what do you know about LSI?

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iammanisha Offline referral

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#1
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what do you know about LSI?
Somani_Realtors Offline referral

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#2
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Latent Semantic Indexing (LSI) is a mathematical method used to determine the relationship between terms and concepts in content. The contents of a webpage are crawled by a search engine and the most common words and phrases are collated and identified as the keywords for the page.
gurjitsingh Offline referral

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#3
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Latent Semantic Analysis (LSA), also known as Latent Semantic Indexing (LSI) literally means analyzing documents to find the underlying meaning or concepts of those documents. If each word only meant one concept, and each concept was only described by one word, then LSA would be easy since there is a simple mapping from words to concepts.
How Latent Semantic Analysis Works

Latent Semantic Analysis arose from the problem of how to find relevant documents from search words. The fundamental difficulty arises when we compare words to find relevant documents, because what we really want to do is compare the meanings or concepts behind the words. LSA attempts to solve this problem by mapping both words and documents into a "concept" space and doing the comparison in this space.

Since authors have a wide choice of words available when they write, the concepts can be obscured due to different word choices from different authors. This essentially random choice of words introduces noise into the word-concept relationship. Latent Semantic Analysis filters out some of this noise and also attempts to find the smallest set of concepts that spans all the documents.

In order to make this difficult problem solvable, LSA introduces some dramatic simplifications.

Documents are represented as "bags of words", where the order of the words in a document is not important, only how many times each word appears in a document.
Concepts are represented as patterns of words that usually appear together in documents. For example "leash", "treat", and "obey" might usually appear in documents about dog training.
Words are assumed to have only one meaning. This is clearly not the case (banks could be river banks or financial banks) but it makes the problem tractable.

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sinelogixtech Offline referral

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#4
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Latent semantic indexing. It is a series of actions that extracting related words or information from your site content. Main idea behind LSI is to discover words and phrases that are related in the context of any document or group of documents.
Carlbrewster Offline referral

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LSI is the abbreviation for Latent Semantic Indexing. This is a system used by Google and other major search engines like Bing and Yahoo. The algorithm/system crawls through websites/pages and indexes (locates and takes note of) the most common words on those pages. Often times, this will be the name of the company, organization, individual, or association. Other things liked to LSI and SEO are online reputation management and reserve search engine optimization.
ankit009 Offline referral

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#6
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LSI stands for Latent Semantic Indexing. This technique is established to obtain the data by relating the word to its closest counterparts or to its similar context.
jackar56 Offline referral

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#7
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LSI (Latent Semantic Indexing) is the a portion of Google's calculation that will crease words into a grid for investigations, with the end goal of recognizing semantically related terms.





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