Query level feature
A query level feature or QLF is a ranking feature utilized in a machine-learned ranking algorithm.
Example QLFs:
- How many times has this query been run in the last month?
- How many words are in the query?
- What is the sum/average/min/max/median of the BM25F values for the query?
This article is issued from Wikipedia - version of the Wednesday, September 17, 2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.