estc: English Short Title Catalogue (ESTC) Metadata Toolkit

title: "Author preprocessing summary" author: "Leo Lahti / Computational History Group" date: "2018-06-21" output: markdown_document

54974 unique authors These final names capture all name variants from the custom author synonyme table, and exclude known pseudonymes (see below). If multiple names for the same author are still observed on this list, they should be added on the author synonyme table.
288108 documents have unambiguous author information (60%).
4603 unique pseudonymes are recognized based on custom pseudonyme lists.
179 discarded author names This list should not include any real authors (if it does, please send a note to the admin). The stopword lists are considered when discarding names.
Author name conversions Non-trivial conversions from the original raw data to final names.

Top-20 uniquely identified authors and their productivity (title count).

plot of chunk summaryauthors

Authors with ambiguous living year information - can we spot here cases where these are clearly known identical or distinct authors? Should also add living year information from supporting sources later.

33540 authors with missing life years (Life year info can be augmented here)

8333 authors with ambiguous life years Some of these might be synonymous and could be added to author synonyme list (the first term will be selected for the final data)

Ordered by productivity (number of documents))

plot of chunk summaryauthorslife

135846 documents (28%) have author age at the publication year. These have been calculated for documents where the publication year and author life years (birth and death) are available, and the document has been printed during the author's life time.

plot of chunk author_age