IRS13 Scientific Report No. IRS-13 Information Storage and Retrieval Document Length 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. V-5~ Request QB12 Information dissemination by journals* and periodicals* these terms are niapped into one concept class by the the- saurus]. Relevant Document 04, Using Abstracts Matching concepts, and weights in document - Information (1) - Dissemination (2) Total Concepts in Document 13 Total Concepts in Request - Journals (4) 3 Total Concepts that match 3 Cosine Numeric Correlation 0.7145 Rank position 1 Relevant Document 0[OCRerr] e Using Full Text Matching concepts, and weights in document - Information (2) Total Concepts in Document 86 - Dissemination (2) Total Concepts in Request 3 - Journals (30) Total Concepts that match 3 Cosine Numeric Correlation 0.6828 Rank position 1 Analysis of request QB12 and relevant document o4, comparing abstract and full text result, thesaurus, ADI Collection. Figure 37.