Attribute space: The space spanned by attributes, also called "sample space" or "input space".

Feature space: The attribute space formed by excluding linearly correlated attributes and attributes that are not beneficial to model construction is called feature space.

Related concepts

• Data set: A collection of data
• Instance or sample: Each record is a description of an event or object.
• Attribute or feature: A property or characteristic of an event or object.
• Attribute value: The value of an attribute.
• Feature vector: Each point in space corresponds to a coordinate vector