The UCI Machine Learning repository provides several useful data sets; therefore, visit this website and select the data sets that are appropriate for classification and interesting to you. Explore and download
These are wireless sensor data sets generated for anomay detection, but suitable for classification algorithms. These data sets can be found at Explore and download. These data sets have been used by other researchers:
These are the simple data sets and adopted in the required textbook for the purpose of explaining machine learning techniques. Thsi set includes carpet floor and hard floor data sets Explore and download.
These data sets can be found at the Center for Disease Control website. One of the usefulness of the data set is the classification problem associated with diabetic or non-diabetic status. Explore and download.