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Republic, 1912-1949
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2017
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(1 - 3 of 3)
Title
Historical Map Annotations for Text Detection and Recognition
Description
This data is set designed for testing the performance of text/graphics separation and character recognition algorithms on text in scanned historical map images. Thirty one maps from the nineteenth and early twentieth centuries (1866–1927) were chosen from nine atlases in the David Rumsey Map Collection (http://davidrumsey.com). Most maps are of individual U.S. states, though some are regional and one is of the entire U.S.; most feature little handwritten text. The original MrSid files are converted into uncompressed TIFF images for a manual annotation, stored in JSON format. The authors gratefully acknowledge the David Rumsey Map Collection as the source of the map images, which come with the following notice: Images copyright © 2000 by Cartography Associates. Images may be reproduced or transmitted, but not for commercial use. This work is licensed under a Creative Commons [Attribution-NonCommercial-ShareAlike 3.0 Unported] license (http://creativecommons.org/licenses/by-nc-sa/3.0). By downloading any images from this site, you agree to the terms of that license.
Date Created
2018
PID
grinnell:23294
Title
Quenching timescales of dwarf satellites around Milky Way-mass hosts
Description
In this work, we present measurements of the quenched fractions and quenching timescales of dwarf satellite galaxies in the DC Justice League suite of 4 high-resolution cosmological zoom-in simulations of Milky Way-mass halos.
Date Created
2020
PID
grinnell:29703
Title
The Collembola of North America, north of the Rio Grande : a taxonomic analysis - 4 Volumes
Description
The four-volume 1998 edition of Collembola of North America.
Date Created
1998
PID
grinnell:32100