Definitions for "Unsupervised learning"
The area of machine learning in which an agent learns from interaction with its environment, rather than from a knowledgeable teacher that specifies the action the agent should take in any given state.
Specific type of a learning algorithm, especially for self-organizing neural nets. Unlike supervised learning, no target patterns exist.
Learning without a priori knowledge of input samples
Keywords:  uplink, upload, selling
Up-selling Uplink Upload
This term refers to the collection of techniques where groupings of the data are defined without the use of a dependent variable. Cluster analysis is an example.