Over the recent years we have worked with multiple databases for speech recognition. As we want to share our efforts, you can download these automatic sign language recognition databases used at our institute from our FTP server. Yet, there are several things to consider:

• You'll have to agree on our license conditions. Please acknowledge that these databases are not intended for commercial usage and are hence not allowed to be used for that purpose.

• As we are curious who uses our databases and for internal tracking, we request you to fill a form before you can download our databases. The hereby collected data is stored for no other purpose than internal tracking and is not transmitted to third parties.

Thanks for being interested in downloading RWTH-BOSTON-50. As explained above, we request you to fill this form. The hereby collected data is stored securly and not transmitted to third parties.

Our databases are published under "Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International" license. Creative Commons public licenses provide a standard set of terms and conditions that creators and other rights holders may use to share original works of authorship and other material subject to copyright and certain other rights. You can read the full license conditions at creativecommons.org.

In short, this license allows you to:

• Share — copy and redistribute the material in any medium or format
• Adapt — remix, transform, and build upon the material

• Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.

• NonCommercial — You may not use the material for commercial purposes.

• ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.

• You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
• No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.

Please read up the license yourself if anything is unclear to you. Also, you may ask us for further information.