
For queries that are in the long-tail where we have little scraps of data, it's ambiguous, it's harder to figure out what to include.
Eric Lehman[1]
Navboost will adjust the scores of documents more mildly as for queries that are in the long-tail where we have little scraps of data.
Eric Lehman[1]

DeepRank understands long-tail user need as it trains on click data.
P. Pandurang Nayak[8]
It's pretty good most of the time but, like, then you get some tail -- you put in some tail query and it's terrible.
Mr. Giannandrea[6]
If I have less than 20 percent of overall market share, my quality compared to my main competitor will become very bad.
Mikhail Parakhin[4]
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