which method is used to analyzes the document based on semantic words?
Answers
Answer:
Step-by-step explanation:
Semantic analysis describes the procedure of understand natural language the way that persons communicate based on meaning and context.
Semantic analysis of natural language content starts by studying all the words in the content of the natural meaning of any text.
It recognize the text elements and assigns them to their logical and grammatical role. It analyze the context in the surrounding text and it analyze the written structure to accurately unambiguous the meaning of words that have more than one definition.
Answer:
Latent Semantic Indexing (LSI)
Step-by-step explanation:
It is a technique in Natural Language processing(NLP) which is used for the analyzing of relationships between documents and the terms they contain by producing a set of set of concepts related to documents and the terms present inside it. LSA assumes that the terms which are closer to meaning to each other will occur in the smaller piece of text which is is also called distributional hypothesis. A matrix containing word counts per paragraph (rows represent unique words and columns represent each paragraph) is constructed from a large piece of text and a mathematical technique called singular value decomposition (SVD) is used to reduce the number of rows while preserving the similarity structure among columns. Words are then compared by taking the cosine of the angle between the two vectors (or the dot product between the normalization of the two vectors) formed by any two rows. Values close to 1 represent very similar words while values close to 0 represent very dissimilar words
Cos formula is
(A.B) = AB cos (A)(B)