10. A method for creating a Kind feature vector, comprising: creating a Kind feature vector for a Kind using a set of initial features and one or more descriptors of a Kind classification characterizing the Kind, the creating comprising: creating one or more dimensions within the Kind feature vector; and for respective dimensions within the Kind feature vector, assigning a probabilistic value to a dimension based upon the probability the Kind relates to a characteristic of the dimension.
15. The method of claim 10 , comprising: creating a user feature vector for a user based upon one or more Kind feature vectors of Kinds associated with the user.