6000 ground truth of VOC and notarial deeds 3.000.000 HTR of VOC, WIC and notarial deeds

The National Archives of the Netherlands and Noord-Hollands Archief conducted a project using the Transkribus HTR (Handwritten Text Recognition) platform. The aim was to semi automatically transcribe 2 million pages of old Dutch texts. The transcribed archives are 17th and 18th century documents from the Dutch East-India Company (VOC). And 19th century notarial deeds from Noord-Hollands Archief and other archives in the provinces. In order to train the HTR software a team produced transcriptions of approximately 6000 scans. The scans are randomly selected from the dataset. With the transcriptions a model is trained that can recognize more than 90% of the characters correctly. Transkribus transcribed the 2 million scans automatically using the trained model. The following Transkribus HTR+ model has been trained for the text recognition: "IJsberg". More information about the model can be found here. See the chapter "Dutch Handwriting". However, the Transkribus team retrained the model with PyLaia technology, which improved the HTR+ model. This PyLaia model is not publicly available. Later on, 1 million extra scans concerning the West India Company (WIC) were transcribed automatically without adding extra ground truth or training. These archives are from the 17th and 18th century. The datasets published in Zenodo contain the ground truth (scans in JPG, transcription in PAGE XML) and the HTR results (in PAGE XML and TXT). See the overview below. Scroll to the bottom of the page to download the actual files. For more information on how the Dutch National Archive innovate on digital accessibility click here. For open data access of scans and inventories of the National Archives click here. Disclaimer: due to a variety of languages used and the bad state of the documents the HTR results of "1.05.21, Dutch series Guyana" can be of poor quality. -------------------------------------------------------------- Dataset HTR (Dataset, name archive, number archive, inventory numbers, link to inventory) The National Archives of the Netherlands HTR results VOC, VOC, 1.04.02, 7527-9540, EAD HTR results 1.04.02, Oost-Indische Testamenten, 1.04.02, 6847-6897, EAD HTR results 1.05.01.01, Oude WIC, 1.05.01.01, 1-87, EAD HTR results 1.05.01.02, Tweede WIC, 1.05.01.02, 1-1382, EAD HTR results 1.05.02, Raad der Koloniën, 1.05.02, 1-192, EAD HTR results 1.05.03, Sociëteit van Suriname, 1.05.03, 1-566, EAD HTR results 1.05.05, Sociëteit van Berbice, 1.05.05, 1-445, EAD HTR results 1.05.06, Verspreide West-Indische stukken, 1.05.06, 1-1413, EAD HTR results 1.05.21, Dutch series Guyana, 1.05.21, AB.1.1-BB.7.1, EAD HTR results 2.01.28.01, West-Indisch comité, 2.01.28.01, 1-254, EAD HTR results 2.01.28.02, Raad der Amerikaanse Bezittingen, 2.01.28.02, 1-264, EAD Noord-Hollands archief HTR results NHA Notarial 1617, Oud notarieel archief Haarlem, 1617,1593-1805, EAD HTR results NHA Notarial 1972, Nieuw notarieel archief Haarlem, 1972, 5-813, EAD Brabants Historisch Informatie Centrum HTR results BHIC 7048 , Notarissen in Boxmeer, 1814-1935, 7048, 1-103, 162, EAD HTR results BHIC 7128 , Notarissen in Grave, 1648-1935, 7128, 140-266, EAD HTR results BHIC 7637 , Notarissen in Sint-Oedenrode, 1642-1935, 7637, 17-78A, EAD Gelders Archief HTR results GA 0168, Notariële Archieven 1811-1925, 168, 64-69, 943-960, 1366-1395, 2472-2501, 3481-3485, 3904-3926, EAD Groninger Archieven HTR results GRA 85, Notarissen te Appingedam (standplaats 1), 1811-1935, 85, 2-157, EAD HTR results GRA 86, Notarissen te Appingedam (standplaats 2), 1812-1922, 86, 2-71, EAD Historisch Centrum Overijssel HTR results HCO 0122, Notarissen in Overijssel, 122, 5-48, 2044-2073, 3019-3047, 3733-3775, EAD The Utrecht Archives HTR results HUA 34-1, Notarissen in de provincie Utrecht, 1617-1895, 34-1, 928-930, 2209-2330, EAD Regionaal Historisch Centrum Limburg HTR results RHCL 09.009, Notarissen in de Arrondissementen Maastricht en Roermond, 1896-1905, 09.009, 9147-9279, EAD Tresoar HTR results Tresoar 26, Notarieel archief, 26, 1001-9028 (met hiaten), EAD Zeeuws Archief HTR results ZA 13.2, Notariële Archieven Zeeland 1906-1915, (1886) 1906-1915 (1925), 13.2, 1152-1163, 1261-1320, EAD Drents Archief HTR results DA 114.10, Notaris jhr.mr. J.A.G.van der Wijck te Assen, 114.10, 4-7, EAD HTR results DA 114.11, Notaris mr. D.A.M.de Fremery te Assen, 114.11, 1, EAD HTR results DA 114.18, Notaris mr. Warmolt van Roijen te Borger, 114.18, 2-7, EAD HTR results DA 114.19, Notaris mr. Ernst Sigismund. Cornets de Groot te Borger, 114.29, 2-8, EAD HTR results DA 114.22, Notaris mr. Albertus Slingenberg te Coevorden, 114.22, 1-24, EAD HTR results DA 114.23, Notaris mr. Gozewienus Weys te Coevorden, 114.23, 4-13, EAD HTR results DA 114.28, Notaris mr. Johannes Beckeringh van Loenen te Dwingeloo, 114.29, 7-13, EAD HTR results DA 114.39, Notaris mr. Gerrit ten Raa ten Gieten, 114.39, 6-14, EAD HTR results DA 114.45, Notaris mr. Hendrik Jan Carsten te Hoogeveen, 114.45, 17-36, EAD HTR results DA 114.54, Notaris mr. Warmold Lunsingh Tonckens te Meppel, 114.54, 18-26, EAD Dataset Ground Truth (Name archive, number archive, inventory numbers, link to inventory, type of dataset) Dataset: Notarial deeds Ground Truths of the trainingset Oud notarieel archief Haarlem, 1617, 495 random scans from 1593-1805, EAD, GT Transcriptions Nieuw notarieel archief Haarlem, 1972, 952 random scans from 5-813, EAD, GT Transcriptions (And 168 transcripties from 7 other archives.) Dataset: Notarial deeds Images of the trainingset, Nieuw notarieel archief Haarlem, 1972, 952 random scans from 5-813, EAD, GT Scans Oud notarieel archief Haarlem, 1617, 495 random scans from 1593-1805, EAD, GT Scans (And 168 scans from 7 other archives.) Dataset: VOC Ground Truths of the trainingset, VOC, 1.04.02, 4735 random scans from 7527-9540, EAD, GT Transcriptions Dataset: VOC Images of the trainingset, VOC, 1.04.02, 4735 random scans from 7527-9540, EAD, GT Scans -------------------------------------------------------------- Version 3.0: The first HTR results from the VOC-collection are available in .txt format, Inventory numbers 7527-9540. Version 3.1: The HTR results from the VOC-collection are also available in PAGE xml format. Version 4.0: About 30 missing inventory numbers have been added to the VOC transcriptions. The HTR results of the Notarial Deeds from the NHA archives have been added. An example on full text searchable research can be found here (Dutch): https://kia.pleio.nl/groups/view/55812425/htr-en-ocr/blog/view/55814752/reconstructie-van-een-verijdelde-slavenopstand-met-behulp-van-automatische-handschriftherkenning-en-text-mining Version 5.0: Around a million pages of HTR results of the following archives have been added. Version 6.0: The HTR results of Oost-Indische Testamenten have been added. Version 7.0: The HTR results of the Brabants Historisch Informatie Centrum, Gelders Archief, Groninger Archieven, Historisch Centrum Overijssel, The Utrecht Archives, Regionaal Historisch Centrum Limburg, Tresoar, Zeeuws Archief and Drents Archief have been added. Version 7.1: A spreadsheet "ijsberg train-val.xlsx" has been added. The division of the training- and validationset of Ground Truth of the IJsberg model can be found here