Fewer topics? A million topics? Both?! On topics subsets in test collections
Information Retrieval Journal, pp. 49-85, 2020.
EI
Abstract:
When evaluating IR run effectiveness using a test collection, a key question is: What search topics should be used? We explore what happens to measurement accuracy when the number of topics in a test collection is reduced, using the Million Query 2007, TeraByte 2006, and Robust 2004 TREC collections, which all feature more than 50 topics,...More
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