ISR11 On Some Clustering Techniques for Information Retrieval chapter J. D. Broffitt H. L. Morgan J. V. Soden Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. Ix-15 References [1] R. M. Need[OCRerr]am, Applications of the Theory of Clumps, Mechanical Translation, Vol.8, Nos. 3 and [OCRerr], June-October 1965. [2] R. E. Bonner, On Some Clustering Techniques, IBM Journal of Research and Develo[OCRerr]ment, Vol.8, No.1, January l96[OCRerr]. [3] J. J. Rocchio, Harvard University Doctoral Thesis, Report No. ISR-lO to the National Science Foundation, April 1966. [~] D. Ro&ers and T. Tanimoto, A Computer Program for Classifying Plants, Science, Vol. 132, pp. 1115-1118, October 1960. [5] G. Salton, et. al. Information Storage and Retrieval, Report No. ISR-9 to National Science Foundation, Harvard Computation Laboratory, August 1965. [6] j. Rubin, Optimal Classification into Groups: An Approach for Solving The Taxono[OCRerr] Problem, (unpublished IBM report), March 1966. [7] W. D. Fisher, [OCRerr][OCRerr]-Way Cluster Analysis, (preliminary report) Kansas State University, 1966.