-
Lancaster, F.W.: Vocabulary control in information retrieval systems (1977)
0.00
0.004407616 = product of:
0.033057116 = sum of:
0.025163881 = weight(_text_:und in 1774) [ClassicSimilarity], result of:
0.025163881 = score(doc=1774,freq=2.0), product of:
0.06422601 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.028978055 = queryNorm
0.39180204 = fieldWeight in 1774, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.125 = fieldNorm(doc=1774)
0.0078932345 = product of:
0.015786469 = sum of:
0.015786469 = weight(_text_:information in 1774) [ClassicSimilarity], result of:
0.015786469 = score(doc=1774,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.3103276 = fieldWeight in 1774, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.125 = fieldNorm(doc=1774)
0.5 = coord(1/2)
0.13333334 = coord(2/15)
- Theme
- Konzeption und Anwendung des Prinzips Thesaurus
-
Lancaster, F.W.: Information retrieval systems : characteristics, testing and evaluation (1979)
0.00
7.441813E-4 = product of:
0.011162719 = sum of:
0.011162719 = product of:
0.022325438 = sum of:
0.022325438 = weight(_text_:information in 7270) [ClassicSimilarity], result of:
0.022325438 = score(doc=7270,freq=4.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.43886948 = fieldWeight in 7270, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.125 = fieldNorm(doc=7270)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Footnote
- 1st ed.: 1968; 3rd ed. u.d.T.: Information retrieval today (gemeinsam mit A.J. Warner)
-
Lancaster, F.W.; Gillespie, C.J.: Design and evaluation of information systems (1970)
0.00
7.441813E-4 = product of:
0.011162719 = sum of:
0.011162719 = product of:
0.022325438 = sum of:
0.022325438 = weight(_text_:information in 243) [ClassicSimilarity], result of:
0.022325438 = score(doc=243,freq=4.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.43886948 = fieldWeight in 243, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.125 = fieldNorm(doc=243)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
- Source
- Annual review of information science and technology. 5(1970), S.33-70
-
Lancaster, F.W.; Fayen, E.G.: Information retrieval on-line (1973)
0.00
6.5776956E-4 = product of:
0.009866543 = sum of:
0.009866543 = product of:
0.019733086 = sum of:
0.019733086 = weight(_text_:information in 2260) [ClassicSimilarity], result of:
0.019733086 = score(doc=2260,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.38790947 = fieldWeight in 2260, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.15625 = fieldNorm(doc=2260)
0.5 = coord(1/2)
0.06666667 = coord(1/15)
-
Lancaster, F.W.: Toward paperless information systems (1978)
0.00
6.5776956E-4 = product of:
0.009866543 = sum of:
0.009866543 = product of:
0.019733086 = sum of:
0.019733086 = weight(_text_:information in 3356) [ClassicSimilarity], result of:
0.019733086 = score(doc=3356,freq=2.0), product of:
0.050870337 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.028978055 = queryNorm
0.38790947 = fieldWeight in 3356, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.15625 = fieldNorm(doc=3356)
0.5 = coord(1/2)
0.06666667 = coord(1/15)