Assertion (A) : The hierarchy based classification schemes have a major role in the organization of the web.
Reason (R) : The 'hotlists' retrieved by robots based search engines use the technique of relevance of subject descriptors.
Codes :
UGC NET - 2013,
Answer: A
The Assertion is true and the Reason is false, as the key gives. Hierarchy based classification schemes play a major role in the organisation of the web, as in directories that arrange sites in a tree of subjects.
The Reason says that the hotlists retrieved by robot based search engines use the relevance of subject descriptors. That does not describe how robot based engines work, which is by matching words from the text of the pages, so (R) is false.
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