Current Slide
Small screen detected. You are viewing the mobile version of SlideWiki. If you wish to edit slides you will need to use a larger device.
Yet more evaluation measures…
Mean average precision (MAP)
Average of the precision value obtained for the top k documents, each time a relevant doc is retrieved
Avoids interpolation, use of fixed recall levels
MAP for query collection is arithmetic ave.
Macro-averaging: each query counts equally
R-precision
If we have a known (though perhaps incomplete) set of relevant documents of size Rel, then calculate precision of the top Rel docs returned
Perfect system could score 1.0.
Speaker notes:
Content Tools
Tools
Sources (0)
Tags (0)
Comments (0)
History
Usage
Questions (0)
Playlists (0)
Quality
Sources
There are currently no sources for this slide.