Which indexing system has open ended vocabulary?
(A) PRECIS
(B) POPSI
(C) KWOC
(D) KWIC
Answers
I think option (B) POPSI is correct one.
Answer:
the right answer is Keyword Indexing
Explanation:
Computerized Indexing Techniques: A. Keyword indexing: A method of indexing that does not restrict language is sometimes referred to as "Natural Language Indexing" or "Free Text Indexing." Natural Language or Free Text searching are other names for keyword searching.
Database index:
An index in a database is a data structure that speeds up data retrieval processes on a database record at the expense of more writes and storage capacity to keep the index data structure in place. Instead of having to search through every row in a database table each time a database table is viewed, indexes are used to find data rapidly. A database table's columns can be used to build indexes, which serve as the foundation for both quick random lookups and effective access to organized records. A table's chosen sections of data are copied to create an index, which is intended to make searching very effective. In order to quickly access the entire row of data, an index typically contains a "key" or direct link to the initial row of data from which it was copied. By allowing programmers to build indexes on column values that have undergone functions or formulas, some databases enhance the functionality of indexing. For instance, an index on upper(last_name) could be made, which would only keep the field's upper-case variations
The use of partial indices, where index entries are generated only for records that meet some conditional expression, is another choice that is occasionally allowed. Allowing indexing on user-defined functions and expressions created from a variety of built-in functions is another element of freedom.
learn more
https://brainly.in/question/32151637
https://brainly.in/question/34714486
#SPJ3