Milyon dolar havaya mı gitti? --> Why Netflix Never Implemented The Algorithm That Won

We evaluated some of the new methods offline but the additional accuracy gains that we measured did not seem to justify the engineering effort needed to bring them into a production environment. 

It wasn't just that the improvement was marginal, but that Netflix's business had shifted and the way customers used its product, and the kinds of recommendations the company had done, had shifted too. Suddenly, the prize winning solution just wasn't that useful -- in part because many people were streaming videos rather than renting DVDs -- and it turns out that the recommendation for streaming videos is different than for rental viewing a few days later.

link: Why Netflix Never Implemented The Algorithm That Won The Netflix $1 Million Challenge | Techdirt

Published: April 30 2012

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