I am relatively new in the field of Data Mining. I am currently doing Some Data preprocessing algorithms such as PCA and min max Normalization. Our professor said we could download the data sets available over the web. But at initial level I want a simple data set with relatively small number of attributes for my algorithm, and would then switch to various complex data sets.
Can anyone provide a link for simple data sets which you must have used in your data mining algorithms? e.g. something pertaining to marks of students, age, height etc or employee data of a company. Any assistance would be greatly appreciated.
More and many more links here: Some Datasets Available on the Web
I used stackoverflow's data for my data mining class.
I am not sure this is going to help or not, but I gathered some websites that provided useful Data when I was working with recommender systems.
Here it is
http://girlincomputerscience.blogspot.com.br/2010/12/datasets.html
来源：https://stackoverflow.com/questions/5280677/data-sets-for-data-mining-tasks