Using AI to automatically transcribe 1890s handwritten Jenkins Diaries from the State Library of Victoria
20 Sep 2021Summary
- 21 of the 25 volumes of the Jenkins diaries have been transcribed at near perfect level of accuracy over an approximate 13 years by State Library of Victoria (SLV) staff and volunteers.
- 3 volumes where transcribes by the AI based web service Biblio.ai in approximately 5 hours at a level of accuracy of between 40% and 83% (excluding impossible to read, totally damaged or extremely hard to read pages) - at a cost of under $10 Australian Dollars.
- For the purpose of accessibility and quantity rather than accuracy and quality, AI based handwriting to text presents a new solutions to complement manual transcriptions of historical documents.
Abstract
Investigation of the purpose, speed, cost and accuracy of using AI to automatically transcript 1890s era handwritten diaries of an itinerant labourer in gold rush era Central Victoria.
Introduction
In 1997, the State Library of Victoria (SLV) acquired 25 volumes of the handwritten diaries of Joseph Jenkins - itinerant labourer in gold rush era Central Victoria. In 2018, an internal SLV project was started by staff and volunteers to manually transcribe the Jenkins diaries. In the last 13 years, 21 of the 25 volumes have been transcribed - with an accuracy of around 99% of words being transcribed.
In 2019, I received the SLV Digital Fellowship ( https://www.slv.vic.gov.au/interact-with-us/fellowships/digital-fellowship/2019-fellow-justin-kelly ) to look at using computer vision and related AI technologists to automatically enrich the metadata for SLV digital records.
The result of this fellowship is Biblio.ai - an open source web service that connects to libraries digital repositories, extracts the available digital objects and uses AI and computer vision to automatically enhance the metadata of the records - with the primary focus on accessilibity.
One of the many features of Biblio.a is the ability to convert handwriting to text, using Microsoft Azure Cognitive Services. Given the importance of the Jenkins diaries to this history of Victoria - I though these diaries would be a prefect test subject to document, analyse and measure the affectiveness of AI based transcriptions of historical handwritten doucments.
4 pages of handwritting where chosen as test records, ranging from easy (cursive, historical and clear) to very hard to read (cursive, historical, words joined together, and squashed)
Easy
First up is a letter from Volume 1 - to Joseph Jenkins
Original document: https://viewer.slv.vic.gov.au/?entity=IE20347212&file=FL20371699&mode=browse
AI API result: https://api.biblio.ai/.netlify/functions/data-html?metadata_key=metadata_identifier_file_id&metadata_value=FL20371699
AI transcription
Pheola Victoria
Aug 184 1592
just a few lines to
let you know S received your kind
letter to-day after waiting for a long
time to hear from you. I' was
asthonished to tear of My Brother
- in law to blame me wrongful for
Squandering my Brother property
what I did notget. Jagn surprised
that they would not to me Swrote
home as I told you before and gave
them full particulars and ( got
no answer I told them their was
a will lift but being concealed so
long it would cost Ignore to get it
Results
- Original document -
- Words: 102
- AI transcription:
- Words correct: 85
- Percent correct: 83%
Medium
Next up are letters and diary entries by Joseph with increasing level of difficulty to read
Original document: https://viewer.slv.vic.gov.au/?entity=IE20347212&file=FL20371649&mode=browse
AI API result: https://api.biblio.ai/.netlify/functions/data-html?metadata_key=metadata_identifier_file_id&metadata_value=FL20371649
API results
The Parapet have now been build higher than ever
War young flock. for this year tourists of to lamb.
10 paluss of colts and another wheely to come
I loves as far, the winter has been moist
durm, thay, and color. this mouth has not
in little warmer. Hto have forty anche
wherethe heart, all been Down, the hohate
Blades are very backward.
The Diary I send two papers off with the
Results
- Original document:
- Words: 94
- AI transcription:
- Words correct: 49
- Percent correct: 52%
Hard
Original document: https://viewer.slv.vic.gov.au/?entity=IE20347212&file=FL20371576&mode=browse
AI API result: https://api.biblio.ai/.netlify/functions/data-html?metadata_key=metadata_identifier_file_id&metadata_value=FL20371576
AI transcrtiption
Sie, Inving on the b the of fuly last year
ligh a certain quorumcript in your
Care whoon the consider ation than !
would Either call for them after wounds
Or lund Marups for you to return
there . Many times I called and ual
a huepenper for them, but would wuts
five you haw fam peing to
Return. they was intended for monitors
"lie the Leader " at forth and were
that he loos anceable with balls
Content, bat too lengthy and hudded
in too many subjects for any
newspaper, and that it would
take the lashole hace in the seadue
It would fill nearly 3' columns
Results
- Original document:
- Words: 127
- AI transcription:
- Correct words: 58
- Percent correct: 46%
Very hard
https://viewer.slv.vic.gov.au/?entity=IE20353400&file=FL20371855&mode=browse
AI API result: https://api.biblio.ai/.netlify/functions/data-html?metadata_key=metadata_identifier_file_id&metadata_value=FL20371855
AI transcription
I have to get oh to attend to onature. I slapher gain lentils b a - one five
fell and gloomy. we had a towerat T so I had an Excuse feetbe late
She wh work the became live and pleasant before croon ) came home
the for dinner and took full two hever to cook and lak any
we. diviner Ido not feel thong enough to walk down to the transtion
abo to I took a heaver job that wanted to be scouronly rum
an I came homeEarly and Inade myself Ready for hash
Results
- Original document:
- Words: 110
- AI transcription:
- Words correct: 58
- Percent correct : 53%
Cost
3 full volumes of the Jenkins diaries plus two thousand other SLV images were processed at a total cost of $8.11 Australian Dollars.
Biblio.ai - Open source web service create by me to connect libraries, APIs, and AI services: $0
Micrsoft Azure Congitive Services to do a number of different requests per image: $8.11 Australian Dollars
Database and API services provided the open source web server Supabase.io: $0
Serverless functions - the Biblio.ai API results - from Netlify: $0
Quantity or Quality?
My main focus of my SLV Digital Fellowship is how increase the accessiblity of digital items and collections - particulary focused on people with visual, hearing or learning difficultities - using AI and realted technologies.
As a result of my reaserch in this area and the development of biblio.ai - it is my personal opinion that anything that can be done (no matter if it’s not perfect) to improve accessibility is a positive result.
For people with visual or learning difficulttiues, a Library having historical handwritten documents with no transcriptions, is the same is having no documents at atll.
Any transcription - with appropriate caveats/notices - is better than none.
Many Librarians are hesitant to make public something that is not perfect, when focused around items of limited quantity - this makes sense, but when a library such as SLV has hundreds of thousands of items undescribed, a more pragmatic is recommended.
Conclusion
For the purpose of accessibility and quantity rather than accuracy and quality, AI based handwriting to text presents a new solutions to complement manual transcriptions of historical documents.