October 1998 - First production release of the Encyclopédie database
First round of corrections: 1999-2002
Semi-automatic correction of egregious high-frequency errors - e.g., semme / femme; deseription / description, - of these errors were of the well known, and much lamented, long-s character in 18th-century typography, which was frequently confused with "f". We attempted to correct these by trapping impossible character combinations and also checking words by their frequencies.
344,608 changes made to the database
Second round of corrections: 2003-2006
Corrections were made by hand using our own spell-checker (built from ARTFL's 18th century collections)
Identified errors were corrected and then verified against page images.
157,806 changes made to the database
Corrections to the Plate Volumes
The Plate volumes were subject to the first two rounds of text corrections (automatic and by hand), although the technical nature of the plate legends made spell checking and correction more difficult than in the text volumes.
Many of the plate links and page image links were broken (i.e. misrecognized/tagged) during the initial data capture - as a final stage of text corrections we have re-numbered the missing page images/links and restructured the broken links to the plates themselves.
Third round of corrections: 2007-2008
4,709 changes to the text: e.g., Busson / Buffon; fes / ses, etc.
We also made 3,586 changes to the Encyclopédie metadata (Headwords, Authors, Classifications, etc.)