Unsupervised Scale-Invariant Learning

Closed weights University of Oxford 0.5K parameters June 2003

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
University of Oxford
Organisation type
Academia
Country
United Kingdom of Great Britain and Northern Ireland
Published
18 June 2003
Authors
R Fergus, P Perona, A Zisserman

What it does

The problem areas the model was built for. A model can carry several of each.

Domain
Vision
Task
Image classification

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.

Parameters
0.5K

See Table 1

Training data
400 tokens

See Table 2 and Figure 1. There are 7 datasets, each with 200-800 of pictures. I pick 500 as the avg number of pictures

How it is classified

Labels the source dataset applies when tracking notable models, and how confident it is in the entry.

Citations
2,970

Sources

Where this record came from and when it was last checked.

Reference
Object Class Recognition by Unsupervised Scale-Invariant Learning
Last updated
28 November 2025

What the numbers mean

About this model

Unsupervised Scale-Invariant Learning was published by University of Oxford, in the country recorded as United Kingdom of Great Britain and Northern Ireland, during June 2003. It comes out of an organisation categorised as academia.

It works in the domain of Vision, and is recorded as performing the task of image classification.

This is a closed model: the trained values stayed with whoever produced them, and there is no local version to run.

Training and provenance

The training set ran to roughly 400 tokens of text.

Answers

Unsupervised Scale-Invariant Learning — common questions

01

Unsupervised Scale-Invariant Learning— what is it used for?

It works in the domain of Vision, and is recorded as handling the task of image classification. A model can carry several of each, so these are the areas it was built for rather than a limit on what it will attempt.

02

Unsupervised Scale-Invariant Learning— what GPU do I need to run it?

None. This 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.

03

Unsupervised Scale-Invariant Learning— is it open source?

The licensing was never recorded in our source data. We treat unstated licensing as closed, because an unrecorded licence is not one to rely on.

04

Unsupervised Scale-Invariant Learning— how many parameters does it have?

It has a parameter count of 0.5K. See Table 1. That figure is the total, and it is what decides how much memory the model needs — roughly half a gigabyte per billion at the compression most people use.

05

Unsupervised Scale-Invariant Learning— who created it?

It was published by University of Oxford, based in United Kingdom of Great Britain and Northern Ireland, an organisation categorised as academia.

06

Unsupervised Scale-Invariant Learning— when was it released?

It was published in June 2003. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

Source

Original publication

Record last updated 28 November 2025

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.