Discussion
Who among the following have developed pre-coordinate indexing systems ?
(i) S.R. Ranganathan
(ii) Mortimer Taube
(iii) Larry Page
(iv) Derek Austin
Answer: B
The pre-coordinate systems come from Ranganathan and Austin, so the answer is (i) and (iv) are correct.
In a pre-coordinate index the indexer combines the concepts into a heading when the index is made. S.R. Ranganathan devised chain indexing, which builds subject headings from the chain of a class number, and Derek Austin devised PRECIS (Preserved Context Index System), used for the British National Bibliography from 1971.
Mortimer Taube is the wrong pick: his Uniterm system is the classic post-coordinate system, where single terms are combined by the searcher at search time. Larry Page co-founded Google and devised PageRank, a web ranking method, not an indexing language. So every option naming (ii) or (iii) is wrong.
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