ISR11 Scientific Report No. ISR-11 Information Storage and Retrieval Information Analysis and Dictionary Construction chapter G. Salton M. E. Lesk Harvard University Gerard Salton Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. iv-4i Nuli Thesaurus Regular Thesaurus Rank Document Relevant Rank Document Relevant [OCRerr]omote& 1 622 yes 1 622 yes 2 616 yes 2 616 yes 3 bc 3 617 yes yes [OCRerr] 578 1+ 621 yes yes 5 619 yes 5 578 6 617 yes 6 619 yes 7 613 7 15+ yes yes 8 620 yes 8 bc 9 6i[OCRerr] 9 620 yes 10 15+ yes 10 613 11 719 II 6i[OCRerr] 12 618 12 302 yes 13 [OCRerr]36 13 618 1[OCRerr] 621 yes 1[OCRerr] [OCRerr]36 15 371 15 710 Ouery Text: "How does scale height vary with altitu&e in an atmosphere ?" Exaznple of Thesaurus ?erf[OCRerr]rmance Table II