BellKor 2007
No estimate
No hardware requirements for this model
The weights for this model have not been published, so it cannot be downloaded or run on your own hardware at any size. It is reachable only through its provider, and no graphics card changes that.
On record
Full specification
Everything on record for this model. Most of it describes how it was trained rather than how it runs — useful context for judging how much work went into it, and how it compares with models built at a different scale.
Origin
Who built this model, where, and when it was published.
- Organisation
- AT&T
- Organisation type
- Industry
- Country
- United States of America
- Published
- 21 September 2009
- Authors
- RM Bell, Y Koren, C Volinsky
What it does
The problem areas the model was built for. A model can carry several of each.
- Domain
- Recommendation
- Task
- Movie ratings
Size
How large the model is and how much data it was trained on. Parameters are the figure that decides whether it fits on a given graphics card.
- Training data
- tokens
The training data set consists of 100,480,507 ratings
How it is classified
Labels the source dataset applies when tracking notable models, and how confident it is in the entry.
- Why it is tracked
- SOTA improvement
- Citations
- 241
Won Netflix prize
Sources
Where this record came from and when it was last checked.
- Reference
- The BellKor solution to the Netflix Prize
- Last updated
- 28 November 2025
What the numbers mean
About this model
BellKor 2007 was published by AT&T, in United States of America, in September 2009. industry is the category the publisher falls under.
It works in Recommendation, and is recorded as doing movie ratings.
This is a closed model: the trained values stayed with whoever produced them, and there is no local version to run.
How it was trained
The reason it appears in this catalogue at all is sOTA improvement.
Answers
BellKor 2007 — common questions
Is BellKor 2007 open source?
The licensing for BellKor 2007 was never recorded in our source data. We treat unstated licensing as closed, because an unrecorded licence is not one to rely on.
How many parameters does BellKor 2007 have?
No parameter count has been published for BellKor 2007, which is why no memory or speed figure appears on this page.
Who created BellKor 2007?
BellKor 2007 was published by AT&T, based in United States of America, categorised as industry.
When was BellKor 2007 released?
BellKor 2007 was published in September 2009. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.
What is BellKor 2007 used for?
BellKor 2007 works in Recommendation, and is recorded as handling movie ratings. Models frequently carry more than one of each, and the tags describe purpose rather than capability limits.
What GPU do I need to run BellKor 2007?
None. BellKor 2007 is a closed model — its weights were never published, so it cannot be downloaded or run on your own hardware at any price. It is reachable only through its provider.
The other direction
Looking at it from the other side?
This page starts from the model. If you already own a card and want to know everything it will run, start from the hardware instead.