CRANV1P1 ASLIB Cranfield Research Project: Factors Determining the Performance of Indexing Systems: VOLUME 1. Design, Part 1. Text Testing Techniques chapter Cyril Cleverdon Jack Mills Michael Keen Cranfield An investigation supported by a grant to Aslib by the National Science Foundation. Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. - 94 - 1745 1807 ..... 1746 [OCRerr] 1808 1747 1809 17481[OCRerr] 1810 17491[OCRerr] . 1811 1750 - 1812 1751t[OCRerr] 1813 ........... 1762<;L ; 1814 .......... 1753i[OCRerr] ..... 1815 . . 1754t[OCRerr] 1816 1755 1817 1756 ......... 1818 1757 [OCRerr][OCRerr] [OCRerr] ......... 1758 1759 1760 1761 "" ..... 1762 1763 1764 [OCRerr]q 1765 1766 1767 1768 1769 . 1770 I-[OCRerr] 1771 / .. 1772 ,.6 1773 ii.[OCRerr] 1774 ..... 1775 ,.Q.[OCRerr]: 1776 i.7 1777 1778 1779 t 7 " 178o 1781 l[OCRerr] 1782 1783 1784 I[OCRerr] ........ 1785 1786 1787 [OCRerr] [OCRerr] 1788 K q [OCRerr]9 1789 l[OCRerr] _. ....... 1790 t.[OCRerr] 17911.[OCRerr] [OCRerr]ff 1792 1793 j[OCRerr] 179419 [OCRerr] 1795 ,.q 1796, b 1797 1798 I Q 1799 I[OCRerr] [OCRerr]7 1800 ,.[OCRerr] .......... 1801L[OCRerr] ....... 1802 1.[OCRerr] 18o3 {9 18o4 t ...... 18o5 1806 (13) ,f i'[OCRerr] If. It: . 1 1819 1820 { 'i: 1621 1822 1823 1824 1825 I'] 1826 1827 1828 1829 1830 1831 1832 1833 1834 "1835 1836 1837 1838 1839 1840 1841 <. 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1655 t 9 1856 }.[OCRerr]j 1857 1858 ! [OCRerr] 1859 1860 1861 j[OCRerr] 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 i872 i~73 !874 1875 1576 1877 !878 1879 1830 1881 !$82 i~83 1884 i~85 18~6 !587 ig88 !889 !890 182} 18~2 1893 1894 1995 i~9~ !£97 18~8 !~9 lSno 1901 1002 19L~3 1 [OCRerr],<i 1 =05 i.'06 !907 i~03 I~I0 !911 1912 19!3 191-i 1915 1916 i917 i9£8 1919 i~.20 1921 1922 !923 1924 1925 1926 1927 1928 i~29 I~30 t 7 1931 1932 1933 I.[OCRerr] i[OCRerr]j 1934 Ici [OCRerr]l 1935 1993 19.94 1995 1996 1997 1936 1998 1937 1999 1938 2000 1939 t[OCRerr] 2001 1940 t c.. 2002 1941 [OCRerr] ff [OCRerr].[OCRerr]- 2003 l7 1942 I [OCRerr]f 2004 1943 l.[OCRerr] 2005 1944 20O6 19:t5 [OCRerr] ,<? 2007 1946 '-'7[OCRerr]'[OCRerr]7 2008 1947 2009 1948 ].?( 2010 1949 ) 2011 1950 2012 1951 2013 1952 2014 1953 2015 1954 2016 1955 2017 1956 2018 1957 2019 1958 }[OCRerr] 2020 1959 t.[OCRerr].' 2{}21 1960 { .[OCRerr] 2022 ).7 /-1[OCRerr] 1961 2023 i.[OCRerr]}. 1962 l.'/,2.)'[OCRerr]' 2024 I '[OCRerr] 1963 t..[OCRerr] 2(125 I ") 6.q 1964 / [OCRerr] 2026 [OCRerr] 1965 [OCRerr] ,'[OCRerr] 2027 1966 I.[OCRerr] 2028 1967 ! [OCRerr]} 2029 7 1968 2030 [OCRerr]7 1969[OCRerr]Qev[OCRerr] 2031 t.U 1970 i (/[OCRerr]5.[OCRerr] 2(}32 1971 I. ,']" 2033 1972 I..[OCRerr] ,P,[OCRerr]/" 2034 1973 ,3'[OCRerr]' I,Q 2035 i c/ 1974 u][OCRerr] 2036 1975 {.c] 2037 I -/ 1976 2038 - 1977 ,.Of F.[OCRerr]] 2039 , &. 19781 ?/[OCRerr]bklr[OCRerr]2()40 [OCRerr] 1979 I c/ 20.11 i.ct 1980 "-7 20,12 I [OCRerr] 1981 [OCRerr], 2043 [OCRerr] [OCRerr]/ 1962 20.t4 '.7 1983 2(}-15 t c[OCRerr] 1984 , Q 2(}.16 ,.[OCRerr] 19851 q O°>t} 20,17 [OCRerr].(., 1986 , c/ 2048 [OCRerr].[OCRerr] e)[OCRerr] 1067,q ... 20,t9 1988 ,,c7[OCRerr]j[OCRerr] 2050 1989 I A 2051 iv) 19J0[OCRerr] (l 2052 19911" Q d).[OCRerr] 2053 1992, Q 2054 (1,q) (16) ,? 1.7 .? 2055 2056 2057 2058 2059 2060 2o6[OCRerr] o37 2062 2003 206d ,[OCRerr] 2065 2066 2067 2068 2069 2070 2071 2072 [OCRerr] 2073 2074 t I 2075 t. 2076 i.[OCRerr] 2077 2078 /.t[OCRerr] 2079 2080 ,.9 [OCRerr] 2081 }q 157 2082 I[OCRerr] [OCRerr] 2088 /.[OCRerr] 2084 /Q [OCRerr]b 2085 2086 2087 2088 2089 2090 2091 2092 2093 1[OCRerr] 2094 2095 2096 /'[OCRerr]-[OCRerr] 2097 2098 [OCRerr]6 20[OCRerr]19 [OCRerr].C, [OCRerr]U 2100 I.b[OCRerr]5 2101 2102 2103 210-t [OCRerr].[OCRerr] 21o5 [OCRerr] 9 [OCRerr] 21(}6 i.[OCRerr] 2107 i.[OCRerr] 2108 [OCRerr]0 2109 [OCRerr] 2110 t.[OCRerr] }[OCRerr]IG 2111 2112'0 IC6 2113 2114 2115 2116 (14) (17) (18) FIGURE 6.2 POSEINQ SHEET FOR ,FLOW' IN PELATION TO DOCUMENTS 1745-2116