Retrieval as Matching Documents to Queries

Document

Space

Sample

Sample

Query

Space

Surrogates

Surrogates

Terms

Vectors

Etc..

Query Form B

Etc..

Match

Algorithm

Evaluation metric is effectiveness of the match. Typically a binary

decision for each pairwise match and one or more aggregate values for

a set of matches (e.g.., recall and precision).

Query Form A

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