Extremely useful to understand what is under the hood of SharePoint 2013 Search.
While investigating relevancy calculation in new SharePoint 2013, I did a research and it turned out that there are a lot publicly available patents which cover search in SharePoint, most of them are done in scope of Microsoft Research programs, according to names of inventors. Although there is no direct evidence that it was implemented exactly as described in patents, I created an Excel spreadsheet which mimiques logic described in patents which actual values from SharePoint – and numbers match!
I hope most curious of you will find it helpful to deep dive into Enterprise Search relevancy and better understand what happens behind the curtain.
Enterprise relevancy ranking using a neural network
Internal ranking model representation schema
Techniques to perform relative ranking for search results
- http://www.google.com/patents/US8266144
- http://www.google.com/patents/US7974974
- http://www.google.com/patents/US20110264660
Ranking and providing search results based in part on a number of click-through features
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