Summarizes methods of automatic indexing and abstracting, and the results of their use. The author places the methods in the context of the study of text, manua... » 

Summarizes methods of automatic indexing and abstracting, and the results of their use. The author places the methods in the context of the study of text, manual indexing and abstracting, and the use of indexing descriptions and abstracts in systems that select information from large collections. «