http://www.nlm.nih.gov/hmd.dir/oli.dir/image_statistics.html (Einblicke ins Internet, 10/1995)
OnLine Images from the History of Medicine
OnLine Images from the History of Medicine:
Statistics Concerning the Image & Catalog Records
Analysis of the Picquick 3.93 video laserdisc
and associated CD-ROM catalog reveals the following:
- There are 58,834 catalog records.
- 58,555 catalog records contain frame numbers and side-of-disc assignments
(31,069 on side A, and 27,486 on side B).
- 279 catalog entries are missing both frame numbers and side-of-disc
assignment.
- 407 catalog entries point to missing images on the video laserdisc.
- There are 529,976 words in the catalog, 40,533 of which are unique.
- Only 5,900 catalog records contain date information.
- Only 4,326 catalog records indicate a geographical region or country
as a location; of these, 893 records indicate a US state as a location.
- There are 59,502 images on the video laserdisc.
- 947 images on the video laserdisc
do not have corresponding catalog entries.
NLM HyperDOC / OnLine Images from the HMD / April 1994