(LSA). In LSA, a T × D matrix is constructed from a text corpus, where T is the number of terms in the corpus and D is the number of documents (here "context" is interpreted as "document" and only words--or word phrases--are considered as items in memory). Each cell in the matrix is then transformed according to the equation:

where is the probability that context is active, given that item has occurred (this is obtained simply by dividing the raw