ISR11 An Experimental Investigation of Automatic Hierarchy Generation chapter G. Blomgren A. Goodman L. Kelly Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. VII 1-14 References Li] L. B. Doyle, Is Automatic Classification a Reasonable Application of Statistical Analysis of Text ?, Journal of the ACM. Vol. 12, No.4, October 1965. [2] D. Le[OCRerr]owitz and N. S. Prywes, Automatic Stratification of Information, Proceedin[OCRerr]s of S[OCRerr]rin[OCRerr] Joint Ccm[OCRerr]uter Conference9 Detroit, 1963 [3] M. Razar and G. Shapiro, Hierarchy Set-up and Hierarchy and Concept- Concept Expansion Procedures, Report No. ISR-9, to N[OCRerr]tional Science Foundation, Section XV, Harvard Computation Laboratory, August 1965. [4] G. Salton, Max[OCRerr]pulation of Trees in Information Retrieval, Commun[OCRerr]i cations of the ACM. Vol. 5, No. 2, February 1962. [5] G. Salton, The Evaluation of Automatic Retrieval Procedures -- Selected Test Results Using the SM[OCRerr]T System, American Documentation, Vol. 16, No. 3, July 1965. [6] G. Salton, Progress in Automatic Information Retrieval, IEEE Spectrum, August 1965. [7] G. Salton, Information Analysis and Dictionary Construction, Manuscript, Cornell University, 1966. [8] H. F. Stiles, The Association Factor in Information Retrieval, Journal of the ACM, Vol. 8, No. 2, April 1961.