Question

Databases of documents' bibliographic records are known as? O Extracts O Vector space models O Citation indexes O Latent semanticanalyses

Answer 1

answer: 3. Citation indexes

• citation indexes : It is a bibliographic database which provides citation link between documents. It allows the user to find out which later document cite which earlier documents. citation is the act of acknowledging the title, author, etc which is used in the publication.
• vector space models : It is also known as term vector model. It represents text documents as vectors of identifiers. vector space models for information retrieval represents queries and documents asvector of weights.
• latent symanticanalyses : It is a technique in NLP (Natural Language Processing). This technique used to analyz relationship between set of documents. In this technique the words which are close in meaning will occur in similar pieces of text.
• Extracts : Well extracts word used in different fields, So it is not possible to give explanation on this. But this will not be the answer.