Search results | Digital Grinnell

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: Landscape structure and genetic architecture jointly impact rates of niche evolution
Description: Understanding the factors that afect rates of adaptation at range margins is crucial for interpreting and predicting changes in species’ ranges.
Date Created: 2014
PID: grinnell:26660

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

Title: Wood Anatomy of Hydrophyllaceae. I. Eriodictyon
Description: Hydrophyllaceae is a characteristically herbaceous family; only Eriodictyon Benth., Wigandia H.B.K., and the monotypic Turricula Macbr. can be considered woody (stems attaining a diameter of more than 1 em). Are plants such as these relicts from a woody ancestry, or is the family secondarily woody?
Date Created: 1983
PID: grinnell:26662