IRS13 Scientific Report No. IRS-13 Information Storage and Retrieval Thesaurus, Phrase and Hierarchy Dictionaries chapter E. M. Keen Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. VII-$8 References [1] C. Cleverdon, J. Mills and M. Keen, Factors Determining the Performance of Indexing Systems, Vol. 1, Design, Aslib Cranfield Research Project, Cranfield, 1966. [2] M. E. Lesk and G. Salton, Design Criteria for Automatic Information Systems, Information Storage and Retrieval, Report ISR-ll, to the National Science Foundation, Section V, Department of Computer Science, Cornell University, June 1966. [3] C. Harris, Dictionary and Hierarchy Formation, Information Storage and Retrieval, Report ISR-7, to the National Science Foundation, Section III, Harvard Computation Laboratory, June 1964. [4] M. E. Lesk and T. Evslin, Housekeeping Routines, Infor- mation Storage and Retrieval, Report ISR-7, to the National Science Foundation, Section XI, Harvard Computation Laboratory, June 1964. [5] C. Harris, Dictionary Construction and Updating, Infor- mation Storage and Retrieval, Report ISR-8, to the National Science Foundation, Section VII, Harvard Computation Laboratory, December 1964. [6] M. Cane, The Dictionary Lookup System, Information Storage and Retrieval, Report ISR-9, to the National Science Foundation, Section V, Harvard Computation Laboratory, August 1965. [7] M. Cane, The Dictionary Setup Procedures, Information Storage and Retrieval, Report ISR-9, to the National Science Foundation, Section VI, Harvard Computation Laboratory, August 1965. [8] M. E. Lesk, Operating Instructions for the SMART Text Processing and Document Retrieval System, Information Storage and Retrieval, Report ISR-ll, to the National Science Foundation, Section II, Department of Computer Science, Cornell University, June 1966. [9] M. Lesk and T. Evslin, Statistical Phrase Processing, Information Storage and Retrieval, Report ISR-7, to the National Science Foundation, Section IX, Harvard Compu- tation Laboratory, June 1964.