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1. UJI Pen Characters: Data consists of written characters in a UNIPEN-like format

2. UJI Pen Characters (Version 2): A pen-based database with more than 11k isolated handwritten characters

3. Online Handwritten Assamese Characters Dataset: This is a dataset of 8235 online handwritten assamese characters. The “online” process involves capturing of data as text is written on a digitizing tablet with an electronic pen.

4. SMS Spam Collection: The SMS Spam Collection is a public set of SMS labeled messages that have been collected for mobile phone spam research.

5. Northix: Northix is designed to be a schema matching benchmark problem for data integration of two entity relationship databases.