This text is focused on the problem of "finding out about" (FOA):
Identifying documents that help someone learn more about a topic of interest. "Information retrieval" (IR) is the name of a sub-discipline within computer science that has developed a number of core technologies for constructing a statistical characterization of words occurring in each document. This is used to efficiently search through very large textual corpora for documents that a user is likely to find "relevant." Construction of an IR "search engine" and evaluating its effectiveness will be our first focus.
similar entries (vs):
similar entries (cg):