BLSTM for handwriting (2)

Closed weights University of Bern,IDSIA,Technical University of Munich 100.9K parameters December 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
University of Bern,IDSIA,Technical University of Munich
Organisation type
Academia,Academia,Academia
Country
Switzerland, Germany
Published
3 December 2007
Authors
Alex Graves, Marcus Liwicki, Horst Bunke, Jürgen Schmidhuber, Santiago Fernández

What it does

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

Domain
Vision
Task
Character recognition (OCR)

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
100.9K

For the raw input representation, there were 4 input units and a total of 100,881 weights

Training data
3,298,424 tokens

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

"In experiments on an unconstrained online database, we record excellent results using either raw or preprocessed data, well outperforming a state-of-the-art HMM based system in both cases."

Citations
341

Sources

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

Reference
Unconstrained online handwriting recognition with recurrent neural networks
Last updated
11 February 2026

What the numbers mean

About this model

BLSTM for handwriting (2) was published by University of Bern,IDSIA,Technical University of Munich, in Switzerland, in December 2007. The organisation is categorised as academia,Academia,Academia.

It works in Vision, and is recorded as doing character recognition (OCR).

Because the weights are not available, none of the hardware figures elsewhere on this site apply to it.

What went into building it

Around 3,298,424 tokens went into training it.

It is tracked in the underlying dataset for one reason in particular: sOTA improvement.

Answers

BLSTM for handwriting (2) — common questions

01

When was BLSTM for handwriting (2) released?

BLSTM for handwriting (2) was published in December 2007. Capability per parameter has improved considerably since, so a newer model of the same size is often the better use of the same hardware.

02

What is BLSTM for handwriting (2) used for?

BLSTM for handwriting (2) works in Vision, and is recorded as handling character recognition (OCR). These are the areas it was designed around; they describe intent rather than a hard boundary.

03

What GPU do I need to run BLSTM for handwriting (2)?

None. BLSTM for handwriting (2) 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.

04

Is BLSTM for handwriting (2) open source?

The licensing for BLSTM for handwriting (2) was never recorded in our source data. We treat unstated licensing as closed, because an unrecorded licence is not one to rely on.

05

How many parameters does BLSTM for handwriting (2) have?

BLSTM for handwriting (2) has 100.9K parameters. For the raw input representation, there were 4 input units and a total of 100,881 weights. 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.

06

Who created BLSTM for handwriting (2)?

BLSTM for handwriting (2) was published by University of Bern,IDSIA,Technical University of Munich, based in Switzerland, categorised as academia,Academia,Academia.

Source

Original publication

Record last updated 11 February 2026

The other direction

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