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What is Latent Semantic Analysis (LSI Indexing)?

Topic: What is Latent Semantic Analysis (LSI Indexing)?  (Read 1159 times)

Offline richard branson

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What is Latent Semantic Analysis (LSI Indexing)?
« on: April 28, 2012, 02:44:35 PM »

Hi, I have no idea about the lsi indexing. Kindly Explain the  Lsi Indexing

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Offline Steve Smith

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Re: What is Latent Semantic Analysis (LSI Indexing)?
« Reply #1 on: March 28, 2013, 02:24:24 PM »
Latent semantic indexing (LSI) is an indexing and retrieval method that uses a mathematical technique called singular value decomposition (SVD) to identify patterns in the relationships between the terms and concepts contained in an unstructured collection of text. 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

Offline Steve Smith

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Re: What is Latent Semantic Analysis (LSI Indexing)?
« Reply #2 on: March 28, 2013, 02:26:48 PM »
Latent semantic indexing (LSI) is an indexing and retrieval method that uses a mathematical technique called singular value decomposition (SVD) to identify patterns in the relationships between the terms and concepts contained in an unstructured collection of text. 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
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