Term basis

Data set (data set): a set of empirical data recorded

example (instance) / sample (sample): each data set is recorded on a description of the object or event, or example of a sample is called a

property (attribute) / wherein (feature): reflect events or subject matter or the nature of the performance in a certain area, called attributes or characteristics of

the property value (attribute value): value of the property

attribute space (attribute space) / sample space (sample space) / input space ( input space):
　　attribute space spanned by such a sample has three properties a, B and C, then these three attributes as three coordinate axes span three-dimensional space, each point can be seen as an example of the three-dimensional space

feature vector (feature vector): attribute space each point corresponds to a coordinate vector, therefore an example of a feature vector is also referred to

sometimes, also known as a whole sample data set, as it is done to see a sample of the sample space
required Analyzing the context, it refers to a single sample or sample data set