Lancaster, F.W.: Vocabulary control for information retrieval (1986)
0.08
0.07880059 = product of:
0.21013491 = sum of:
0.14660324 = weight(_text_:informatik in 217) [ClassicSimilarity], result of:
0.14660324 = score(doc=217,freq=4.0), product of:
0.22985439 = queryWeight, product of:
5.1024737 = idf(docFreq=730, maxDocs=44218)
0.045047637 = queryNorm
0.6378092 = fieldWeight in 217, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.1024737 = idf(docFreq=730, maxDocs=44218)
0.0625 = fieldNorm(doc=217)
0.039118335 = weight(_text_:und in 217) [ClassicSimilarity], result of:
0.039118335 = score(doc=217,freq=8.0), product of:
0.099842094 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.045047637 = queryNorm
0.39180204 = fieldWeight in 217, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0625 = fieldNorm(doc=217)
0.02441333 = product of:
0.04882666 = sum of:
0.04882666 = weight(_text_:22 in 217) [ClassicSimilarity], result of:
0.04882666 = score(doc=217,freq=2.0), product of:
0.15774915 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045047637 = queryNorm
0.30952093 = fieldWeight in 217, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=217)
0.5 = coord(1/2)
0.375 = coord(3/8)
- Classification
- ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
- Date
- 22. 4.2007 10:07:51
- RVK
- ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
Rijsbergen, C.J. van: Information retrieval (1979)
0.04
0.042549767 = product of:
0.17019907 = sum of:
0.12827784 = weight(_text_:informatik in 856) [ClassicSimilarity], result of:
0.12827784 = score(doc=856,freq=4.0), product of:
0.22985439 = queryWeight, product of:
5.1024737 = idf(docFreq=730, maxDocs=44218)
0.045047637 = queryNorm
0.55808306 = fieldWeight in 856, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.1024737 = idf(docFreq=730, maxDocs=44218)
0.0546875 = fieldNorm(doc=856)
0.041921236 = weight(_text_:und in 856) [ClassicSimilarity], result of:
0.041921236 = score(doc=856,freq=12.0), product of:
0.099842094 = queryWeight, product of:
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.045047637 = queryNorm
0.41987535 = fieldWeight in 856, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
2.216367 = idf(docFreq=13101, maxDocs=44218)
0.0546875 = fieldNorm(doc=856)
0.25 = coord(2/8)
- Classification
- ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis
- RVK
- ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis