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diff --git a/notes/2022-01_sitemap.md b/notes/2022-01_sitemap.md new file mode 100644 index 0000000..593ed9c --- /dev/null +++ b/notes/2022-01_sitemap.md @@ -0,0 +1,37 @@ + +## 2022-01-20 + +Updated sitemap.xml, and now have 23.9M access URLs, which compares with 17.9M +previously (an additional 6 million URLs!). + +Here is how various filters impact this number, based on queries in +scholar.archive.org right now: + + # default: papers or pages of microfilm, with any known IA fulltext preservation + https://scholar.archive.org/search?q=* + => 74,356,823 + + # papers, with metadata records, with any IA fulltext preservation + https://scholar.archive.org/search?q=doc_type%3Awork + => 33,797,527 + + # all documents (papers, reports, posts, etc), with metadata records, and any IA fulltext preservation + https://scholar.archive.org/search?q=doc_type%3Awork&filter_type=everything + => 35,256,465 + + # same as above, plus direct public access (PDF or HTML but not microfilm) + https://scholar.archive.org/search?q=doc_type%3Awork+%28fulltext.access_type%3Aia_file+OR+fulltext.access_type%3Awayback%29&filter_type=everything + => 33,999,135 + + # same as above, removing arxiv.org and Pubmed Central papers + https://scholar.archive.org/search?q=doc_type%3Awork+%28fulltext.access_type%3Aia_file+OR+fulltext.access_type%3Awayback%29+%28NOT+biblio.arxiv_id%3A*%29+%28NOT+biblio.pmcid%3A*%29&filter_type=everything + => 27,745,435 + + # same as above, remove papers from large publishers which are not explicitly under open license + https://scholar.archive.org/search?q=doc_type%3Awork+%28fulltext.access_type%3Aia_file+OR+fulltext.access_type%3Awayback%29+%28NOT+biblio.arxiv_id%3A*%29+%28NOT+biblio.pmcid%3A*%29+%28%28NOT+biblio.publisher_type%3Abig5%29+OR+year%3A%3C1926+OR+tags%3Aoa%29&filter_type=everything + => 24,200,138 + +In a post-processing step (which can not be expressed as a query), we are also +removing about 300k "green OA" URLs. These are a subset of the cases where a +pre-print is available but published version is not. I will plan on removing +this in the next iteration of the sitemap. |