Marine Lives guide to creating a Transkribus Ground Truth

This page is the main page of a guide that Marine Lives is creating to cover practical aspects of creating a Transkribus Ground Truth

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Objective

Transkribus web capability has simple, but useful search functionality

We want to have 80,000 images covering HCA 13/20to HCA 13/79 publicly available and searchable by end 2022l

Our overall objective is to make 80,000 images of English High Court of Admiralty depositions covering 1570 to 1690 publicly available and searchable.

To do this our immediate objective is to create a C17th English secretarial hand HTR model, which we will use on our collection of 80,000 images of English High Court of Admiralty depositions.

We are aiming to create two models. The first based on a Ground Truth of 500,000 words (roughly 1,000 manuscript images). The second based on one million words (roughly 2,000 manuscript images).

For our first model, we are using existing semi-diplomatic transcriptions of the HCA 13/72 volume [late 1650s], made between 2013 and 2015 by Marine Lives volunteers. We have to convert these semi-diplomatic transcriptions back to full diplomatic, and mark up contractions, as part of the process of creating a highly reliable Ground Truth. We also have to treat interlineation differently, with each interline shown separately and the insertion point or points marked inm the line on which the interlineation depends.