• UCI Machine Learning Repository

• UCL Neaural Network Group

• Bilkent University Function Approximation Repository

• Delve Datasets

• UCI KDD Archive

• Datasets and Archives

• UC 2005 Data Mining Competition

• Reel Two: Products: Classification System: Sample Datasets

• UCAS Annual Datasets

• Statlib - CMU Data Archive

• Database of Handwritten Cities, States, ZIP Codes, Digits, and Alphabetic Characters

• Time Series Data Library

• Astronomical Time Series

• USC-SIPI Image Database

• Computer Vision Test Images

• Stanford Microarray Database