The digital data was generated from the Geographic Information System of the Railroad Commission of Texas. Base map information was obtained directly from U.S. Geological Survey 7.5 minute quadrangle maps. Patent Survey lines from Texas General Land Office maps were interpreted as accurately as possible over the US Geological Survey base. Oil and gas well data or pipeline data (if included) was obtained from public records at the Railroad Commission. The information provided by this system is being continually updated and refined. The data is intended solely for the internal use of the Railroad Commission, which makes no claim as to its accuracy or completeness.Field Definitions can be found at: https://rrc.texas.gov/media/kmld3uzj/digital-map-information-user-guide.pdf

This layer is sourced from wwwgisp.rrc.state.tx.us.

Texas Survey System (TXSS) Data for use with GIS mapping software, databases, and web applications are from Caliper Corporation and contain boundaries for Texas RRC Districts, Texas Bay Tracts, and Texas Land Survey Layer.

Data set of 2Kx2K image tiles cropped from Napoleonic Cadastre maps of the Val de Marne Archive for the ICDAR'25 Competition on Historical Map Text Detection, Recognition, and Linking.

Annotations and images follow the format described at the competition website and can be evaluated using the official evaluation repository script.

The allowed characters set contains the following items (words should not contain spaces, # has a special meaning which indicates an unreadable character and should not be used in predictions):
abcdefghijklmnopqrstuvwxyzàâçéèêëîïôùûüœÿABCDEFGHIJKLMNOPQRSTUVWXYZÀÂÇÉÈÊËÎÏÔÙÛÜŒŸ0123456789'.,-+/*()&=#

Please note that the ground truth for this dataset is kept private until further notice to enable post-competition submissions to the online platform.

Original images available at https://archives.valdemarne.fr/recherches/archives-en-ligne/cadastre-napoleonien as of Jan., 9th 2025.

This layer is a snap shot of the Railroad Commission data at the time of download. For updated data please visit the RRC FTP site.

Link to the ScienceBase Item Summary page for the item described by this metadata record. Service Protocol: Link to the ScienceBase Item Summary page for the item described by this metadata record. Application Profile: Web Browser. Link Function: information

Evaluations of submissions to the ICDAR'24 Competition on Historical Map Text Detection, Recognition, and Linking.

Files in the archive (evaluations.tar.bz2) are stored in ch28/tY/fZ/W.json where Y is the task number (1–4), Z is the file number (1–2), and W is the submission ID.

Tasks are:

• 1: Word Detection
• 2: Phrase Detection (Word Detection and Grouping)
• 3: Word Detection and Recognition
• 4: Phrase Detection and Recognition

Files are:

• 1: Rumsey data set
• 2: IGN (French Land Register) data set

The JSON output format results from the official competition evaluation script (commit-id: 816da23d6d4e44f7fd89ee07278ebbcd12d50d4d).