Quote: a candidate set is formed by negating one or more query terms; the STAIRS study estimated recall by sampling the candidate sets; usually small enough and rich enough in unretrieved, relevant documents to sample confidently

Quotation Skeleton

[The candidate sets for the query 'A and B and C and D' are formed by negating one or more terms of the query.] [The STAIRS study] sampled from these candidate sets of … gave us a maximum value for recall … While the percentage of unretrieved, relevant documents in … [ref.], the candidate sets that we have created here will often … a high confidence level. … [If not,] then it is unlikely that there will …   Google-1   Google-2

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Quote: in a large collection, the percentage of unretrieved, relevant documents is too low to sample with confidence

Related Topics

Topic: problems with information retrieval (51 items)