Sentence Correction
Verbal Ability

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Q.

In a helpful book on the indexing and searching of text-based electronic files, a well-respected computer scientist differentiated latent semantic indexing, which is a technique designed to analyze relationships among the words within documents, with vector space models, which can search efficiently using augmented inverted indices.

 A.

latent semantic indexing, which is a technique designed to analyze relationships among the words within documents, with vector space models, which can

 B.

between latent semantic indexing, which is a technique designed to analyze the relationships among words within documents, with vector space models, which can

 C.

among latent semantic indexing, which is a technique designed to analyze the relationships among words within documents, and vector space models, which can

 D.

latent semantic indexing, which is a technique designed to analyze the relationships among words within documents, and vector space models, which can

 E.

between latent semantic indexing, which is a technique designed to analyze relationships among the words within documents, and vector space models, which can

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Solution:
Option(E) is correct

There are two issues being tested in this question.

(1) The phrasing used in the original question (differentiated x with y) is not idiomatically correct and should be replaced by the correct idiom (differentiated between x and y)

(2) In order to ensure clarity and improve flow, the sentence should be constructed so that the format is consistent:
differentiated between X, {description of X}, and Y, {description of Y}

A. the phrase differentiated latent semantic indexing...with vector space models is not idiomatically correct (i.e., the correct idiom is: differentiated between x and y)

B. the phrase differentiated between latent semantic indexing...with vector space models is not idiomatically correct (i.e., the correct idiom is: differentiated between x and y)

C. the phrase differentiated among implies that more than two objects are being compared, which is not true is this case; so, differentiated among is improperly used

D. the phrase differentiated latent semantic indexing...and vector space models is not idiomatically correct (i.e., the correct idiom is: differentiated between x and y)

E. the phrase differentiated between latent semantic indexing...and vector space models is idiomatically correct as it follows the idiom differentiated between x and y


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